/*!
\brief Copy table linked to vector map based on category numbers.
\param In input vector map
\param[out] Out output vector map
\param field_in input layer number
\param field_out output layer number
\param field_name layer name
\param type feature type
\param cats pointer to array of cats or NULL
\param ncats number of cats in 'cats'
\return 0 on success
\return -1 on error
*/
int
Vect_copy_table_by_cats(const struct Map_info *In, struct Map_info *Out,
int field_in, int field_out, const char *field_name,
int type, int *cats, int ncats)
{
int ret;
struct field_info *Fi, *Fin;
const char *name, *key;
G_debug(2, "Vect_copy_table(): field_in = %d field_out = %d", field_in,
field_out);
Fi = Vect_get_field(In, field_in);
if (Fi == NULL) {
G_warning(_("Database connection not defined for layer %d"),
field_in);
return -1;
}
if (field_name != NULL)
name = field_name;
else
name = Fi->name;
Fin = Vect_default_field_info(Out, field_out, name, type);
G_debug(3, "Copy drv:db:table '%s:%s:%s' to '%s:%s:%s'",
Fi->driver, Fi->database, Fi->table, Fin->driver, Fin->database,
Fin->table);
ret =
Vect_map_add_dblink(Out, Fin->number, Fin->name, Fin->table, Fi->key,
Fin->database, Fin->driver);
if (ret == -1) {
G_warning(_("Unable to add database link for vector map <%s>"),
Out->name);
return -1;
}
if (cats)
key = Fi->key;
else
key = NULL;
ret = db_copy_table_by_ints(Fi->driver, Fi->database, Fi->table,
Fin->driver, Vect_subst_var(Fin->database,
Out), Fin->table,
key, cats, ncats);
if (ret == DB_FAILED) {
G_warning(_("Unable to copy table <%s>"), Fin->table);
return -1;
}
return 0;
}
static void create_table(struct Map_info *flowline_vec,
struct field_info **f_info, dbDriver ** driver,
int write_scalar, int use_sampled_map)
{
dbString sql;
char buf[200];
dbDriver *drvr;
struct field_info *fi;
db_init_string(&sql);
fi = Vect_default_field_info(flowline_vec, 1, NULL, GV_1TABLE);
*f_info = fi;
Vect_map_add_dblink(flowline_vec, 1, NULL, fi->table, GV_KEY_COLUMN,
fi->database, fi->driver);
drvr = db_start_driver_open_database(fi->driver,
Vect_subst_var(fi->database,
flowline_vec));
if (drvr == NULL) {
G_fatal_error(_("Unable to open database <%s> by driver <%s>"),
Vect_subst_var(fi->database, flowline_vec), fi->driver);
}
db_set_error_handler_driver(drvr);
*driver = drvr;
sprintf(buf, "create table %s (cat integer, velocity double precision",
fi->table);
db_set_string(&sql, buf);
if (write_scalar)
db_append_string(&sql, ", input double precision");
if (use_sampled_map)
db_append_string(&sql, ", sampled double precision");
db_append_string(&sql, ")");
db_begin_transaction(drvr);
/* Create table */
if (db_execute_immediate(drvr, &sql) != DB_OK) {
G_fatal_error(_("Unable to create table: %s"), db_get_string(&sql));
}
if (db_create_index2(drvr, fi->table, fi->key) != DB_OK)
G_warning(_("Unable to create index for table <%s>, key <%s>"),
fi->table, fi->key);
/* Grant */
if (db_grant_on_table
(drvr, fi->table, DB_PRIV_SELECT, DB_GROUP | DB_PUBLIC) != DB_OK) {
G_fatal_error(_("Unable to grant privileges on table <%s>"),
fi->table);
}
}
/*
Create GRASS vector output map.
Create attribute table.
Calculate geometries and write them into the output map.
Calculate attributes and write them into the output map's attribute table.
*/
void writeMap()
{
int i, j;
double xlength, ylength, zlength;
double length, flatLength, bailLength;
double xoffset, yoffset, zoffset;
double xys[12];
int ratio;
double zRatio;
/* attributes to be written to output map */
int boneID;
int skelID;
int unitID;
int oldID;
int cat;
char *organization;
char buf[MAXSTR];
if ( numPoints < 2 ) {
G_fatal_error ("Less than two valid measurement points in input file");
}
G_message (_("Constructing geometries for %i valid points:"), numPoints );
/* CREATE OUTPUT VECTOR MAP */
if (Vect_legal_filename(output->answer) < 0) {
G_fatal_error(_("Use '%s' option to change vector map name"), output->key);
}
Map = (struct Map_info *) G_malloc (sizeof ( struct Map_info ) );
if (Vect_open_new(Map, output->answer, WITH_Z) < 0) {
G_fatal_error(_("Unable to create vector map <%s>"), output->answer);
}
Vect_set_map_name(Map, output->answer);
Vect_hist_command(Map);
if ((organization = getenv("GRASS_ORGANIZATION"))) {
Vect_set_organization(Map, organization);
} else {
Vect_set_organization(Map, "UNKNOWN ORGANIZATION");
}
Vect_set_date(Map, G_date());
Vect_set_person(Map, G_whoami());
Vect_set_map_date(Map, "");
Vect_set_scale(Map, 2400);
Vect_set_comment(Map, "");
Vect_set_zone(Map, 0);
Vect_set_thresh(Map, 0.0);
/* START DBMS INTERFACE */
/* prepare strings for use in db_* calls */
db_init_string(&sql);
/* start default database driver */
Fi = Vect_default_field_info(Map, 1, NULL, GV_1TABLE);
driver = db_start_driver_open_database(Fi->driver,Vect_subst_var(Fi->database, Map));
if (driver == NULL) {
Vect_delete(output->answer);
G_fatal_error(_("Unable to open database <%s> by driver <%s>"),
Vect_subst_var(Fi->database, Map), Fi->driver);
}
/* create attribute table */
db_begin_transaction ( driver );
sprintf(buf, "create table %s (cat integer, skel_id integer, bone_id integer, unit_id integer, GRASSRGB varchar(11),BONERGB varchar(11));",
Fi->table);
if ( DEBUG ) {
fprintf ( stderr, "Creating attribute table: %s\n", buf );
}
db_set_string(&sql, buf);
if (db_execute_immediate(driver, &sql) != DB_OK) {
Vect_delete(output->answer);
G_fatal_error(_("Unable to create attribute table: %s"), db_get_string(&sql));
}
if (db_grant_on_table
(driver, output->answer, DB_PRIV_SELECT, DB_GROUP | DB_PUBLIC) != DB_OK) {
Vect_delete(output->answer);
G_fatal_error(_("Unable to grant privileges on table <%s>"), output->answer);
}
if (db_create_index2(driver, output->answer, "cat") != DB_OK) {
G_warning(_("Unable to create index for table <%s>, key <%s>"), output->answer, "cat");
}
/* link vector map to attribute table */
if (Vect_map_add_dblink(Map, 1, NULL, Fi->table, "cat", Fi->database, Fi->driver) ) {
Vect_delete(output->answer);
G_fatal_error(_("Unable to add database link for vector map <%s>"), Vect_get_full_name(Map));
}
/* PROCESS POINTS AND WRITE GEOMETRIES */
/* Now process point measurements and write geometries into output vector map. */
/* At this stage, the global points array has an even number of valid points. */
oldID = pointTable[0].SKEL_ID;
unitID = 1;
cat = 0;
for ( i = 0; i < numPoints; i = i + 2 ) {
/* This boneID is a generalized ID that does not differentiate
between start and end measurement. */
boneID = (int) pointTable[i+1].BONE_ID / 2;
skelID = pointTable[i+1].SKEL_ID;
/* get coordinates for top and bottom of bone */
ax = pointTable[i].X;
ay = pointTable[i].Y;
az = pointTable[i].Z;
bx = pointTable[i+1].X;
by = pointTable[i+1].Y;
bz = pointTable[i+1].Z;
/* get vector lengths */
xlength = fabs (ax - bx);
ylength = fabs (ay - by);
zlength = fabs (az - bz);
/* get real length */
length = sqrt ( (xlength*xlength) + (ylength*ylength) + (zlength*zlength) );
/* get length in x/y plane */
flatLength = sqrt ( (xlength*xlength) + (ylength*ylength) );
/* determine ratio for triangles, depending on bone type */
ratio = 12; /* default */
for ( j = 0; j < NUM_RATIOS; j ++ ) {
if ( boneID == RATIO_ID[j] ) {
ratio = RATIO_VAL[j];
}
}
/* get bail length */
bailLength = (double) ( length / (double) ratio);
/* calculate bail offsets from top point (one bail is mirror of the other) */
xoffset = (bailLength * ylength) / flatLength;
yoffset = ( (bailLength * xlength) / flatLength ) * (-1);
zoffset = 0;
xys[0]= ax + xoffset;
xys[1]= ay + yoffset;
xys[2]= az + zoffset;
xys[6]= ax - xoffset;
xys[7]= ay - yoffset;
xys[8]= az - zoffset;
/* get 3rd axis offsets */
zRatio = (zlength/ratio) / flatLength;
xoffset = xlength * zRatio;
yoffset = ylength * zRatio;
zoffset = (flatLength/ratio) * (-1);
xys[3]= ax + xoffset;
xys[4]= ay + yoffset;
xys[5]= az + zoffset;
xys[9]= ax - xoffset;
xys[10]= ay - yoffset;
xys[11]= az - zoffset;
/* Increase unit ID by "1", if we have another skeleton ID */
if ( oldID != pointTable[i+1].SKEL_ID ) {
unitID ++;
oldID = pointTable[i+1].SKEL_ID;
/* switch to next colour for next geometry */
RGBNUM ++;
if ( RGBNUM == RGBMAX ) {
RGBNUM = 0;
}
}
/* write geometries */
if ( MODE == MODE_DARTS ) {
writeTriangle ( cat, skelID, boneID, unitID, xys, 0, 6 );
cat ++;
writeTriangle ( cat, skelID, boneID, unitID, xys, 3, 9 );
cat ++;
}
if ( MODE == MODE_LINES ) {
writeLine ( cat, skelID, boneID, unitID );
cat ++;
}
if ( MODE == MODE_PLANES_H ) {
writeTriangle ( cat, skelID, boneID, unitID, xys, 0, 6 );
cat ++;
}
if ( MODE == MODE_PLANES_V ) {
writeTriangle ( cat, skelID, boneID, unitID, xys, 3, 9 );
cat ++;
}
if ( MODE == MODE_POINTS ) {
writePoints ( cat, skelID, boneID, unitID );
cat = cat + 2;
}
if ( MODE == MODE_PYRAMIDS ) {
writeTriangle ( cat, skelID, boneID, unitID, xys, 0, 3 );
cat ++;
writeTriangle ( cat, skelID, boneID, unitID, xys, 3, 6 );
cat ++;
writeTriangle ( cat, skelID, boneID, unitID, xys, 6, 9 );
cat ++;
writeTriangle ( cat, skelID, boneID, unitID, xys, 9, 0 );
cat ++;
writeSquare ( cat, skelID, boneID, unitID, xys );
cat ++;
}
/* switch to next colour for bone colouring */
RGBNUM_BONE ++;
if ( RGBNUM_BONE == RGBMAX ) {
RGBNUM_BONE = 0;
}
G_percent ( i, numPoints - 2, 1 );
}
fprintf ( stdout, "\n" );
/* commit DBMS actions */
db_commit_transaction(driver);
db_close_database_shutdown_driver(driver);
if (!Vect_build(Map)) {
G_warning("Building topology failed");
}
Vect_close(Map);
db_free_string(&sql);
}
int main(int argc, char *argv[])
{
int i, iopt;
int operator;
int aline, nalines, nskipped;
int ltype, itype[2], ifield[2];
int **cats, *ncats, nfields, *fields;
char *mapset[2], *pre[2];
struct GModule *module;
struct GParm parm;
struct GFlag flag;
struct Map_info In[2], Out;
struct field_info *IFi, *OFi;
struct line_pnts *APoints, *BPoints;
struct line_cats *ACats, *BCats;
int *ALines; /* List of lines: 0 do not output, 1 - write to output */
struct ilist *List, *TmpList, *BoundList;
G_gisinit(argv[0]);
pre[0] = "a";
pre[1] = "b";
module = G_define_module();
module->keywords = _("vector, spatial query");
module->description =
_("Selects features from vector map (A) by features from other vector map (B).");
parse_options(&parm, &flag);
if (G_parser(argc, argv))
exit(EXIT_FAILURE);
if (parm.operator->answer[0] == 'e')
operator = OP_EQUALS;
else if (parm.operator->answer[0] == 'd') {
/* operator = OP_DISJOINT; */
operator = OP_INTERSECTS;
flag.reverse->answer = YES;
}
else if (parm.operator->answer[0] == 'i')
operator = OP_INTERSECTS;
else if (parm.operator->answer[0] == 't')
operator = OP_TOUCHES;
else if (parm.operator->answer[0] == 'c' && parm.operator->answer[1] == 'r')
operator = OP_CROSSES;
else if (parm.operator->answer[0] == 'w')
operator = OP_WITHIN;
else if (parm.operator->answer[0] == 'c' && parm.operator->answer[1] == 'o')
operator = OP_CONTAINS;
else if (parm.operator->answer[0] == 'o') {
if (strcmp(parm.operator->answer, "overlaps") == 0)
operator = OP_OVERLAPS;
else
operator = OP_OVERLAP;
}
else if (parm.operator->answer[0] == 'r')
operator = OP_RELATE;
else
G_fatal_error(_("Unknown operator"));
if (operator == OP_RELATE && !parm.relate->answer) {
G_fatal_error(_("Required parameter <%s> not set"),
parm.relate->key);
}
for (iopt = 0; iopt < 2; iopt++) {
itype[iopt] = Vect_option_to_types(parm.type[iopt]);
ifield[iopt] = atoi(parm.field[iopt]->answer);
Vect_check_input_output_name(parm.input[iopt]->answer, parm.output->answer,
GV_FATAL_EXIT);
if ((mapset[iopt] =
G_find_vector2(parm.input[iopt]->answer, NULL)) == NULL) {
G_fatal_error(_("Vector map <%s> not found"),
parm.input[iopt]->answer);
}
Vect_set_open_level(2);
Vect_open_old(&(In[iopt]), parm.input[iopt]->answer, mapset[iopt]);
}
/* Read field info */
IFi = Vect_get_field(&(In[0]), ifield[0]);
APoints = Vect_new_line_struct();
BPoints = Vect_new_line_struct();
ACats = Vect_new_cats_struct();
BCats = Vect_new_cats_struct();
List = Vect_new_list();
TmpList = Vect_new_list();
BoundList = Vect_new_list();
/* Open output */
Vect_open_new(&Out, parm.output->answer, Vect_is_3d(&(In[0])));
Vect_set_map_name(&Out, _("Output from v.select"));
Vect_set_person(&Out, G_whoami());
Vect_copy_head_data(&(In[0]), &Out);
Vect_hist_copy(&(In[0]), &Out);
Vect_hist_command(&Out);
nskipped = 0;
nalines = Vect_get_num_lines(&(In[0]));
#ifdef HAVE_GEOS
initGEOS(G_message, G_fatal_error);
GEOSGeometry *AGeom = NULL;
#else
void *AGeom = NULL;
#endif
/* Alloc space for input lines array */
ALines = (int *)G_calloc(nalines + 1, sizeof(int));
G_message(_("Building spatial index..."));
Vect_build_spatial_index(&In[0]);
Vect_build_spatial_index(&In[1]);
/* Lines in A. Go through all lines and mark those that meets condition */
if (itype[0] & (GV_POINTS | GV_LINES)) {
G_message(_("Processing features..."));
for (aline = 1; aline <= nalines; aline++) {
BOUND_BOX abox;
G_debug(3, "aline = %d", aline);
G_percent(aline, nalines, 2); /* must be before any continue */
/* Check category */
if (!flag.cat->answer && Vect_get_line_cat(&(In[0]), aline, ifield[0]) < 0) {
nskipped++;
continue;
}
/* Read line and check type */
if (operator != OP_OVERLAP) {
#ifdef HAVE_GEOS
AGeom = Vect_read_line_geos(&(In[0]), aline, <ype);
#endif
if (!(ltype & (GV_POINT | GV_LINE)))
continue;
if (!AGeom)
G_fatal_error(_("Unable to read line id %d from vector map <%s>"),
aline, Vect_get_full_name(&(In[0])));
}
else {
ltype = Vect_read_line(&(In[0]), APoints, NULL, aline);
}
if (!(ltype & itype[0]))
continue;
Vect_get_line_box(&(In[0]), aline, &abox);
abox.T = PORT_DOUBLE_MAX;
abox.B = -PORT_DOUBLE_MAX;
/* Check if this line overlaps any feature in B */
/* x Lines in B */
if (itype[1] & (GV_POINTS | GV_LINES)) {
int i;
int found = 0;
/* Lines */
Vect_select_lines_by_box(&(In[1]), &abox, itype[1], List);
for (i = 0; i < List->n_values; i++) {
int bline;
bline = List->value[i];
G_debug(3, " bline = %d", bline);
/* Check category */
if (!flag.cat->answer && Vect_get_line_cat(&(In[1]), bline, ifield[1]) < 0) {
nskipped++;
continue;
}
if (operator != OP_OVERLAP) {
#ifdef HAVE_GEOS
if(line_relate_geos(&(In[1]), AGeom,
bline, operator, parm.relate->answer)) {
found = 1;
break;
}
#endif
}
else {
Vect_read_line(&(In[1]), BPoints, NULL, bline);
if (Vect_line_check_intersection(APoints, BPoints, 0)) {
found = 1;
break;
}
}
}
if (found) {
ALines[aline] = 1;
continue; /* Go to next A line */
}
}
/* x Areas in B. */
if (itype[1] & GV_AREA) {
int i;
Vect_select_areas_by_box(&(In[1]), &abox, List);
for (i = 0; i < List->n_values; i++) {
int barea;
barea = List->value[i];
G_debug(3, " barea = %d", barea);
if (Vect_get_area_cat(&(In[1]), barea, ifield[1]) < 0) {
nskipped++;
continue;
}
if (operator != OP_OVERLAP) {
#ifdef HAVE_GEOS
if(area_relate_geos(&(In[1]), AGeom,
barea, operator, parm.relate->answer)) {
ALines[aline] = 1;
break;
}
#endif
}
else {
if (line_overlap_area(&(In[0]), aline, &(In[1]), barea)) {
ALines[aline] = 1;
break;
}
}
}
}
if (operator != OP_OVERLAP) {
#ifdef HAVE_GEOS
GEOSGeom_destroy(AGeom);
#endif
AGeom = NULL;
}
}
}
/* Areas in A. */
if (itype[0] & GV_AREA) {
int aarea, naareas;
G_message(_("Processing areas..."));
naareas = Vect_get_num_areas(&(In[0]));
for (aarea = 1; aarea <= naareas; aarea++) {
BOUND_BOX abox;
G_percent(aarea, naareas, 2); /* must be before any continue */
if (Vect_get_area_cat(&(In[0]), aarea, ifield[0]) < 0) {
nskipped++;
continue;
}
Vect_get_area_box(&(In[0]), aarea, &abox);
abox.T = PORT_DOUBLE_MAX;
abox.B = -PORT_DOUBLE_MAX;
if (operator != OP_OVERLAP) {
#ifdef HAVE_GEOS
AGeom = Vect_read_area_geos(&(In[0]), aarea);
#endif
if (!AGeom)
G_fatal_error(_("Unable to read area id %d from vector map <%s>"),
aline, Vect_get_full_name(&(In[0])));
}
/* x Lines in B */
if (itype[1] & (GV_POINTS | GV_LINES)) {
Vect_select_lines_by_box(&(In[1]), &abox, itype[1], List);
for (i = 0; i < List->n_values; i++) {
int bline;
bline = List->value[i];
if (!flag.cat->answer && Vect_get_line_cat(&(In[1]), bline, ifield[1]) < 0) {
nskipped++;
continue;
}
if (operator != OP_OVERLAP) {
#ifdef HAVE_GEOS
if(line_relate_geos(&(In[1]), AGeom,
bline, operator, parm.relate->answer)) {
add_aarea(&(In[0]), aarea, ALines);
break;
}
#endif
}
else {
if (line_overlap_area(&(In[1]), bline, &(In[0]), aarea)) {
add_aarea(&(In[0]), aarea, ALines);
continue;
}
}
}
}
/* x Areas in B */
if (itype[1] & GV_AREA) {
int naisles;
int found = 0;
/* List of areas B */
/* Make a list of features forming area A */
Vect_reset_list(List);
Vect_get_area_boundaries(&(In[0]), aarea, BoundList);
for (i = 0; i < BoundList->n_values; i++) {
Vect_list_append(List, abs(BoundList->value[i]));
}
naisles = Vect_get_area_num_isles(&(In[0]), aarea);
for (i = 0; i < naisles; i++) {
int j, aisle;
aisle = Vect_get_area_isle(&(In[0]), aarea, i);
Vect_get_isle_boundaries(&(In[0]), aisle, BoundList);
for (j = 0; j < BoundList->n_values; j++) {
Vect_list_append(List, BoundList->value[j]);
}
}
Vect_select_areas_by_box(&(In[1]), &abox, TmpList);
for (i = 0; i < List->n_values; i++) {
int j, aline;
aline = abs(List->value[i]);
for (j = 0; j < TmpList->n_values; j++) {
int barea, bcentroid;
barea = TmpList->value[j];
G_debug(3, " barea = %d", barea);
if (Vect_get_area_cat(&(In[1]), barea, ifield[1]) < 0) {
nskipped++;
continue;
}
/* Check if any centroid of area B is in area A.
* This test is important in if area B is completely within area A */
bcentroid = Vect_get_area_centroid(&(In[1]), barea);
Vect_read_line(&(In[1]), BPoints, NULL, bcentroid);
if (operator != OP_OVERLAP) {
#ifdef HAVE_GEOS
if(area_relate_geos(&(In[1]), AGeom,
barea, operator, parm.relate->answer)) {
found = 1;
break;
}
#endif
}
else {
if (Vect_point_in_area(&(In[0]), aarea,
BPoints->x[0], BPoints->y[0])) {
found = 1;
break;
}
/* Check intersectin of lines from List with area B */
if (line_overlap_area(&(In[0]), aline,
&(In[1]), barea)) {
found = 1;
break;
}
}
}
if (found) {
add_aarea(&(In[0]), aarea, ALines);
break;
}
}
}
if (operator != OP_OVERLAP) {
#ifdef HAVE_GEOS
GEOSGeom_destroy(AGeom);
#endif
AGeom = NULL;
}
}
}
Vect_close(&(In[1]));
#ifdef HAVE_GEOS
finishGEOS();
#endif
/* Write lines */
nfields = Vect_cidx_get_num_fields(&(In[0]));
cats = (int **)G_malloc(nfields * sizeof(int *));
ncats = (int *)G_malloc(nfields * sizeof(int));
fields = (int *)G_malloc(nfields * sizeof(int));
for (i = 0; i < nfields; i++) {
ncats[i] = 0;
cats[i] =
(int *)G_malloc(Vect_cidx_get_num_cats_by_index(&(In[0]), i) *
sizeof(int));
fields[i] = Vect_cidx_get_field_number(&(In[0]), i);
}
G_message(_("Writing selected features..."));
for (aline = 1; aline <= nalines; aline++) {
int atype;
G_debug(4, "aline = %d ALines[aline] = %d", aline, ALines[aline]);
G_percent(aline, nalines, 2);
if ((!flag.reverse->answer && !(ALines[aline])) ||
(flag.reverse->answer && ALines[aline]))
continue;
atype = Vect_read_line(&(In[0]), APoints, ACats, aline);
Vect_write_line(&Out, atype, APoints, ACats);
if (!(flag.table->answer) && (IFi != NULL)) {
for (i = 0; i < ACats->n_cats; i++) {
int f, j;
for (j = 0; j < nfields; j++) { /* find field */
if (fields[j] == ACats->field[i]) {
f = j;
break;
}
}
cats[f][ncats[f]] = ACats->cat[i];
ncats[f]++;
}
}
}
/* Copy tables */
if (!(flag.table->answer)) {
int ttype, ntabs = 0;
G_message(_("Writing attributes..."));
/* Number of output tabs */
for (i = 0; i < Vect_get_num_dblinks(&(In[0])); i++) {
int f, j;
IFi = Vect_get_dblink(&(In[0]), i);
for (j = 0; j < nfields; j++) { /* find field */
if (fields[j] == IFi->number) {
f = j;
break;
}
}
if (ncats[f] > 0)
ntabs++;
}
if (ntabs > 1)
ttype = GV_MTABLE;
else
ttype = GV_1TABLE;
for (i = 0; i < nfields; i++) {
int ret;
if (fields[i] == 0)
continue;
/* Make a list of categories */
IFi = Vect_get_field(&(In[0]), fields[i]);
if (!IFi) { /* no table */
G_warning(_("Layer %d - no table"), fields[i]);
continue;
}
OFi =
Vect_default_field_info(&Out, IFi->number, IFi->name, ttype);
ret =
db_copy_table_by_ints(IFi->driver, IFi->database, IFi->table,
OFi->driver,
Vect_subst_var(OFi->database, &Out),
OFi->table, IFi->key, cats[i],
ncats[i]);
if (ret == DB_FAILED) {
G_warning(_("Layer %d - unable to copy table"), fields[i]);
}
else {
Vect_map_add_dblink(&Out, OFi->number, OFi->name, OFi->table,
IFi->key, OFi->database, OFi->driver);
}
}
}
Vect_close(&(In[0]));
Vect_build(&Out);
Vect_close(&Out);
if (nskipped > 0) {
G_warning(_("%d features without category skipped"), nskipped);
}
G_done_msg(_("%d features written to output."), Vect_get_num_lines(&Out));
exit(EXIT_SUCCESS);
}
int close_streamvect(char *stream_vect)
{
int r, c, r_nbr, c_nbr, done;
GW_LARGE_INT i;
CELL stream_id, stream_nbr;
ASP_FLAG af;
int next_node;
struct sstack
{
int stream_id;
int next_trib;
} *nodestack;
int top = 0, stack_step = 1000;
int asp_r[9] = { 0, -1, -1, -1, 0, 1, 1, 1, 0 };
int asp_c[9] = { 0, 1, 0, -1, -1, -1, 0, 1, 1 };
struct Map_info Out;
static struct line_pnts *Points;
struct line_cats *Cats;
dbDriver *driver;
dbHandle handle;
dbString table_name, dbsql, valstr;
struct field_info *Fi;
char *cat_col_name = "cat", buf[2000];
struct Cell_head window;
double north_offset, west_offset, ns_res, ew_res;
int next_cat;
G_message(_("Writing vector map <%s>..."), stream_vect);
if (Vect_open_new(&Out, stream_vect, 0) < 0)
G_fatal_error(_("Unable to create vector map <%s>"), stream_vect);
nodestack = (struct sstack *)G_malloc(stack_step * sizeof(struct sstack));
Points = Vect_new_line_struct();
Cats = Vect_new_cats_struct();
G_get_set_window(&window);
ns_res = window.ns_res;
ew_res = window.ew_res;
north_offset = window.north - 0.5 * ns_res;
west_offset = window.west + 0.5 * ew_res;
next_cat = n_stream_nodes + 1;
for (i = 0; i < n_outlets; i++, next_cat++) {
G_percent(i, n_outlets, 2);
r = outlets[i].r;
c = outlets[i].c;
cseg_get(&stream, &stream_id, r, c);
if (!stream_id)
continue;
Vect_reset_line(Points);
Vect_reset_cats(Cats);
/* outlet */
Vect_cat_set(Cats, 1, stream_id);
Vect_cat_set(Cats, 2, 2);
Vect_append_point(Points, west_offset + c * ew_res,
north_offset - r * ns_res, 0);
Vect_write_line(&Out, GV_POINT, Points, Cats);
/* add root node to stack */
G_debug(3, "add root node");
top = 0;
nodestack[top].stream_id = stream_id;
nodestack[top].next_trib = 0;
/* depth first post order traversal */
G_debug(3, "traverse");
while (top >= 0) {
done = 1;
stream_id = nodestack[top].stream_id;
G_debug(3, "stream_id %d", stream_id);
if (nodestack[top].next_trib < stream_node[stream_id].n_trib) {
/* add to stack */
next_node =
stream_node[stream_id].trib[nodestack[top].next_trib];
G_debug(3, "add to stack: next %d, trib %d, n trib %d",
next_node, nodestack[top].next_trib,
stream_node[stream_id].n_trib);
nodestack[top].next_trib++;
top++;
if (top >= stack_step) {
/* need more space */
stack_step += 1000;
nodestack =
(struct sstack *)G_realloc(nodestack,
stack_step *
sizeof(struct sstack));
}
nodestack[top].next_trib = 0;
nodestack[top].stream_id = next_node;
done = 0;
G_debug(3, "go further down");
}
if (done) {
G_debug(3, "write stream segment");
Vect_reset_line(Points);
Vect_reset_cats(Cats);
r_nbr = stream_node[stream_id].r;
c_nbr = stream_node[stream_id].c;
cseg_get(&stream, &stream_nbr, r_nbr, c_nbr);
if (stream_nbr <= 0)
G_fatal_error(_("Stream id %d not set, top is %d, parent is %d"),
stream_id, top, nodestack[top - 1].stream_id);
Vect_cat_set(Cats, 1, stream_id);
if (stream_node[stream_id].n_trib == 0)
Vect_cat_set(Cats, 2, 0);
else
Vect_cat_set(Cats, 2, 1);
Vect_append_point(Points, west_offset + c_nbr * ew_res,
north_offset - r_nbr * ns_res, 0);
Vect_write_line(&Out, GV_POINT, Points, Cats);
seg_get(&aspflag, (char *)&af, r_nbr, c_nbr);
while (af.asp > 0) {
r_nbr = r_nbr + asp_r[(int)af.asp];
c_nbr = c_nbr + asp_c[(int)af.asp];
cseg_get(&stream, &stream_nbr, r_nbr, c_nbr);
if (stream_nbr <= 0)
G_fatal_error(_("Stream id not set while tracing"));
Vect_append_point(Points, west_offset + c_nbr * ew_res,
north_offset - r_nbr * ns_res, 0);
if (stream_nbr != stream_id) {
/* first point of parent stream */
break;
}
seg_get(&aspflag, (char *)&af, r_nbr, c_nbr);
}
Vect_write_line(&Out, GV_LINE, Points, Cats);
top--;
}
}
}
G_percent(n_outlets, n_outlets, 1); /* finish it */
G_message(_("Writing attribute data..."));
/* Prepeare strings for use in db_* calls */
db_init_string(&dbsql);
db_init_string(&valstr);
db_init_string(&table_name);
db_init_handle(&handle);
/* Preparing database for use */
/* Create database for new vector map */
Fi = Vect_default_field_info(&Out, 1, NULL, GV_1TABLE);
driver = db_start_driver_open_database(Fi->driver,
Vect_subst_var(Fi->database,
&Out));
if (driver == NULL) {
G_fatal_error(_("Unable to start driver <%s>"), Fi->driver);
}
db_set_error_handler_driver(driver);
G_debug(1, "table: %s", Fi->table);
G_debug(1, "driver: %s", Fi->driver);
G_debug(1, "database: %s", Fi->database);
sprintf(buf,
"create table %s (%s integer, stream_type varchar(20), type_code integer)",
Fi->table, cat_col_name);
db_set_string(&dbsql, buf);
if (db_execute_immediate(driver, &dbsql) != DB_OK) {
db_close_database(driver);
db_shutdown_driver(driver);
G_fatal_error(_("Unable to create table: '%s'"), db_get_string(&dbsql));
}
if (db_create_index2(driver, Fi->table, cat_col_name) != DB_OK)
G_warning(_("Unable to create index on table <%s>"), Fi->table);
if (db_grant_on_table(driver, Fi->table, DB_PRIV_SELECT,
DB_GROUP | DB_PUBLIC) != DB_OK)
G_fatal_error(_("Unable to grant privileges on table <%s>"), Fi->table);
db_begin_transaction(driver);
/* stream nodes */
for (i = 1; i <= n_stream_nodes; i++) {
sprintf(buf, "insert into %s values ( %lld, \'%s\', %d )",
Fi->table, i,
(stream_node[i].n_trib > 0 ? "intermediate" : "start"),
(stream_node[i].n_trib > 0));
db_set_string(&dbsql, buf);
if (db_execute_immediate(driver, &dbsql) != DB_OK) {
db_close_database(driver);
db_shutdown_driver(driver);
G_fatal_error(_("Unable to insert new row: '%s'"),
db_get_string(&dbsql));
}
}
db_commit_transaction(driver);
db_close_database_shutdown_driver(driver);
Vect_map_add_dblink(&Out, 1, NULL, Fi->table,
cat_col_name, Fi->database, Fi->driver);
G_debug(1, "close vector");
Vect_hist_command(&Out);
Vect_build(&Out);
Vect_close(&Out);
G_free(nodestack);
return 1;
}
int main(int argc, char *argv[])
{
struct GModule *module;
struct _param {
struct Option *dsn, *out, *layer, *spat, *where,
*min_area;
struct Option *snap, *type, *outloc, *cnames;
} param;
struct _flag {
struct Flag *list, *tlist, *no_clean, *z, *notab,
*region;
struct Flag *over, *extend, *formats, *tolower, *no_import;
} flag;
int i, j, layer, arg_s_num, nogeom, ncnames;
float xmin, ymin, xmax, ymax;
int ncols = 0, type;
double min_area, snap;
char buf[2000], namebuf[2000], tempvect[GNAME_MAX];
char *separator;
struct Key_Value *loc_proj_info, *loc_proj_units;
struct Key_Value *proj_info, *proj_units;
struct Cell_head cellhd, loc_wind, cur_wind;
char error_msg[8192];
/* Vector */
struct Map_info Map, Tmp, *Out;
int cat;
/* Attributes */
struct field_info *Fi;
dbDriver *driver;
dbString sql, strval;
int dim, with_z;
/* OGR */
OGRDataSourceH Ogr_ds;
OGRLayerH Ogr_layer;
OGRFieldDefnH Ogr_field;
char *Ogr_fieldname;
OGRFieldType Ogr_ftype;
OGRFeatureH Ogr_feature;
OGRFeatureDefnH Ogr_featuredefn;
OGRGeometryH Ogr_geometry, Ogr_oRing, poSpatialFilter;
OGRSpatialReferenceH Ogr_projection;
OGREnvelope oExt;
OGRwkbGeometryType Ogr_geom_type;
int OFTIntegerListlength;
char *output;
char **layer_names; /* names of layers to be imported */
int *layers; /* layer indexes */
int nlayers; /* number of layers to import */
char **available_layer_names; /* names of layers to be imported */
int navailable_layers;
int layer_id;
unsigned int n_features, feature_count;
int overwrite;
double area_size;
int use_tmp_vect;
xmin = ymin = xmax = ymax = 0.0;
loc_proj_info = loc_proj_units = NULL;
Ogr_ds = Ogr_oRing = poSpatialFilter = NULL;
OFTIntegerListlength = 40; /* hack due to limitation in OGR */
area_size = 0.0;
use_tmp_vect = FALSE;
G_gisinit(argv[0]);
module = G_define_module();
G_add_keyword(_("vector"));
G_add_keyword(_("import"));
module->description = _("Converts vector data into a GRASS vector map using OGR library.");
param.dsn = G_define_option();
param.dsn->key = "dsn";
param.dsn->type = TYPE_STRING;
param.dsn->required =YES;
param.dsn->label = _("OGR datasource name");
param.dsn->description = _("Examples:\n"
"\t\tESRI Shapefile: directory containing shapefiles\n"
"\t\tMapInfo File: directory containing mapinfo files");
param.layer = G_define_option();
param.layer->key = "layer";
param.layer->type = TYPE_STRING;
param.layer->required = NO;
param.layer->multiple = YES;
param.layer->label =
_("OGR layer name. If not given, all available layers are imported");
param.layer->description =
_("Examples:\n" "\t\tESRI Shapefile: shapefile name\n"
"\t\tMapInfo File: mapinfo file name");
param.layer->guisection = _("Selection");
param.out = G_define_standard_option(G_OPT_V_OUTPUT);
param.out->required = NO;
param.out->guisection = _("Output");
param.spat = G_define_option();
param.spat->key = "spatial";
param.spat->type = TYPE_DOUBLE;
param.spat->multiple = YES;
param.spat->required = NO;
param.spat->key_desc = "xmin,ymin,xmax,ymax";
param.spat->label = _("Import subregion only");
param.spat->guisection = _("Selection");
param.spat->description =
_("Format: xmin,ymin,xmax,ymax - usually W,S,E,N");
param.where = G_define_standard_option(G_OPT_DB_WHERE);
param.where->guisection = _("Selection");
param.min_area = G_define_option();
param.min_area->key = "min_area";
param.min_area->type = TYPE_DOUBLE;
param.min_area->required = NO;
param.min_area->answer = "0.0001";
param.min_area->label =
_("Minimum size of area to be imported (square units)");
param.min_area->guisection = _("Selection");
param.min_area->description = _("Smaller areas and "
"islands are ignored. Should be greater than snap^2");
param.type = G_define_standard_option(G_OPT_V_TYPE);
param.type->options = "point,line,boundary,centroid";
param.type->answer = "";
param.type->description = _("Optionally change default input type");
param.type->descriptions =
_("point;import area centroids as points;"
"line;import area boundaries as lines;"
"boundary;import lines as area boundaries;"
"centroid;import points as centroids");
param.type->guisection = _("Selection");
param.snap = G_define_option();
param.snap->key = "snap";
param.snap->type = TYPE_DOUBLE;
param.snap->required = NO;
param.snap->answer = "-1";
param.snap->label = _("Snapping threshold for boundaries");
param.snap->description = _("'-1' for no snap");
param.outloc = G_define_option();
param.outloc->key = "location";
param.outloc->type = TYPE_STRING;
param.outloc->required = NO;
param.outloc->description = _("Name for new location to create");
param.outloc->key_desc = "name";
param.cnames = G_define_option();
param.cnames->key = "cnames";
param.cnames->type = TYPE_STRING;
param.cnames->required = NO;
param.cnames->multiple = YES;
param.cnames->description =
_("List of column names to be used instead of original names, "
"first is used for category column");
param.cnames->guisection = _("Attributes");
flag.list = G_define_flag();
flag.list->key = 'l';
flag.list->description = _("List available OGR layers in data source and exit");
flag.list->suppress_required = YES;
flag.list->guisection = _("Print");
flag.tlist = G_define_flag();
flag.tlist->key = 'a';
flag.tlist->description = _("List available OGR layers including feature types "
"in data source and exit");
flag.tlist->suppress_required = YES;
flag.tlist->guisection = _("Print");
flag.formats = G_define_flag();
flag.formats->key = 'f';
flag.formats->description = _("List supported formats and exit");
flag.formats->suppress_required = YES;
flag.formats->guisection = _("Print");
/* if using -c, you lose topological information ! */
flag.no_clean = G_define_flag();
flag.no_clean->key = 'c';
flag.no_clean->description = _("Do not clean polygons (not recommended)");
flag.no_clean->guisection = _("Output");
flag.z = G_define_flag();
flag.z->key = 'z';
flag.z->description = _("Create 3D output");
flag.z->guisection = _("Output");
flag.notab = G_define_flag();
flag.notab->key = 't';
flag.notab->description = _("Do not create attribute table");
flag.notab->guisection = _("Attributes");
flag.over = G_define_flag();
flag.over->key = 'o';
flag.over->description =
_("Override dataset projection (use location's projection)");
flag.region = G_define_flag();
flag.region->key = 'r';
flag.region->guisection = _("Selection");
flag.region->description = _("Limit import to the current region");
flag.extend = G_define_flag();
flag.extend->key = 'e';
flag.extend->description =
_("Extend location extents based on new dataset");
flag.tolower = G_define_flag();
flag.tolower->key = 'w';
flag.tolower->description =
_("Change column names to lowercase characters");
flag.tolower->guisection = _("Attributes");
flag.no_import = G_define_flag();
flag.no_import->key = 'i';
flag.no_import->description =
_("Create the location specified by the \"location\" parameter and exit."
" Do not import the vector data.");
/* The parser checks if the map already exists in current mapset, this is
* wrong if location options is used, so we switch out the check and do it
* in the module after the parser */
overwrite = G_check_overwrite(argc, argv);
if (G_parser(argc, argv))
exit(EXIT_FAILURE);
G_begin_polygon_area_calculations(); /* Used in geom() */
OGRRegisterAll();
/* list supported formats */
if (flag.formats->answer) {
int iDriver;
G_message(_("Available OGR Drivers:"));
for (iDriver = 0; iDriver < OGRGetDriverCount(); iDriver++) {
OGRSFDriverH poDriver = OGRGetDriver(iDriver);
const char *pszRWFlag;
if (OGR_Dr_TestCapability(poDriver, ODrCCreateDataSource))
pszRWFlag = "rw";
else
pszRWFlag = "ro";
fprintf(stdout, " %s (%s): %s\n",
OGR_Dr_GetName(poDriver),
pszRWFlag, OGR_Dr_GetName(poDriver));
}
exit(EXIT_SUCCESS);
}
if (param.dsn->answer == NULL) {
G_fatal_error(_("Required parameter <%s> not set"), param.dsn->key);
}
min_area = atof(param.min_area->answer);
snap = atof(param.snap->answer);
type = Vect_option_to_types(param.type);
ncnames = 0;
if (param.cnames->answers) {
i = 0;
while (param.cnames->answers[i++]) {
ncnames++;
}
}
/* Open OGR DSN */
Ogr_ds = NULL;
if (strlen(param.dsn->answer) > 0)
Ogr_ds = OGROpen(param.dsn->answer, FALSE, NULL);
if (Ogr_ds == NULL)
G_fatal_error(_("Unable to open data source <%s>"), param.dsn->answer);
/* Make a list of available layers */
navailable_layers = OGR_DS_GetLayerCount(Ogr_ds);
available_layer_names =
(char **)G_malloc(navailable_layers * sizeof(char *));
if (flag.list->answer || flag.tlist->answer)
G_message(_("Data source <%s> (format '%s') contains %d layers:"),
param.dsn->answer,
OGR_Dr_GetName(OGR_DS_GetDriver(Ogr_ds)), navailable_layers);
for (i = 0; i < navailable_layers; i++) {
Ogr_layer = OGR_DS_GetLayer(Ogr_ds, i);
Ogr_featuredefn = OGR_L_GetLayerDefn(Ogr_layer);
Ogr_geom_type = OGR_FD_GetGeomType(Ogr_featuredefn);
available_layer_names[i] =
G_store((char *)OGR_FD_GetName(Ogr_featuredefn));
if (flag.tlist->answer)
fprintf(stdout, "%s (%s)\n", available_layer_names[i],
OGRGeometryTypeToName(Ogr_geom_type));
else if (flag.list->answer)
fprintf(stdout, "%s\n", available_layer_names[i]);
}
if (flag.list->answer || flag.tlist->answer) {
fflush(stdout);
exit(EXIT_SUCCESS);
}
/* Make a list of layers to be imported */
if (param.layer->answer) { /* From option */
nlayers = 0;
while (param.layer->answers[nlayers])
nlayers++;
layer_names = (char **)G_malloc(nlayers * sizeof(char *));
layers = (int *)G_malloc(nlayers * sizeof(int));
for (i = 0; i < nlayers; i++) {
layer_names[i] = G_store(param.layer->answers[i]);
/* Find it in the source */
layers[i] = -1;
for (j = 0; j < navailable_layers; j++) {
if (strcmp(available_layer_names[j], layer_names[i]) == 0) {
layers[i] = j;
break;
}
}
if (layers[i] == -1)
G_fatal_error(_("Layer <%s> not available"), layer_names[i]);
}
}
else { /* use list of all layers */
nlayers = navailable_layers;
layer_names = available_layer_names;
layers = (int *)G_malloc(nlayers * sizeof(int));
for (i = 0; i < nlayers; i++)
layers[i] = i;
}
if (param.out->answer) {
output = G_store(param.out->answer);
}
else {
if (nlayers < 1)
G_fatal_error(_("No OGR layers available"));
output = G_store(layer_names[0]);
G_message(_("All available OGR layers will be imported into vector map <%s>"), output);
}
if (!param.outloc->answer) { /* Check if the map exists */
if (G_find_vector2(output, G_mapset()) && !overwrite)
G_fatal_error(_("Vector map <%s> already exists"),
output);
}
/* Get first imported layer to use for extents and projection check */
Ogr_layer = OGR_DS_GetLayer(Ogr_ds, layers[0]);
if (flag.region->answer) {
if (param.spat->answer)
G_fatal_error(_("Select either the current region flag or the spatial option, not both"));
G_get_window(&cur_wind);
xmin = cur_wind.west;
xmax = cur_wind.east;
ymin = cur_wind.south;
ymax = cur_wind.north;
}
if (param.spat->answer) {
/* See as reference: gdal/ogr/ogr_capi_test.c */
/* cut out a piece of the map */
/* order: xmin,ymin,xmax,ymax */
arg_s_num = 0;
i = 0;
while (param.spat->answers[i]) {
if (i == 0)
xmin = atof(param.spat->answers[i]);
if (i == 1)
ymin = atof(param.spat->answers[i]);
if (i == 2)
xmax = atof(param.spat->answers[i]);
if (i == 3)
ymax = atof(param.spat->answers[i]);
arg_s_num++;
i++;
}
if (arg_s_num != 4)
G_fatal_error(_("4 parameters required for 'spatial' parameter"));
}
if (param.spat->answer || flag.region->answer) {
G_debug(2, "cut out with boundaries: xmin:%f ymin:%f xmax:%f ymax:%f",
xmin, ymin, xmax, ymax);
/* in theory this could be an irregular polygon */
poSpatialFilter = OGR_G_CreateGeometry(wkbPolygon);
Ogr_oRing = OGR_G_CreateGeometry(wkbLinearRing);
OGR_G_AddPoint(Ogr_oRing, xmin, ymin, 0.0);
OGR_G_AddPoint(Ogr_oRing, xmin, ymax, 0.0);
OGR_G_AddPoint(Ogr_oRing, xmax, ymax, 0.0);
OGR_G_AddPoint(Ogr_oRing, xmax, ymin, 0.0);
OGR_G_AddPoint(Ogr_oRing, xmin, ymin, 0.0);
OGR_G_AddGeometryDirectly(poSpatialFilter, Ogr_oRing);
OGR_L_SetSpatialFilter(Ogr_layer, poSpatialFilter);
}
if (param.where->answer) {
/* select by attribute */
OGR_L_SetAttributeFilter(Ogr_layer, param.where->answer);
}
/* fetch boundaries */
if ((OGR_L_GetExtent(Ogr_layer, &oExt, 1)) == OGRERR_NONE) {
G_get_window(&cellhd);
cellhd.north = oExt.MaxY;
cellhd.south = oExt.MinY;
cellhd.west = oExt.MinX;
cellhd.east = oExt.MaxX;
cellhd.rows = 20; /* TODO - calculate useful values */
cellhd.cols = 20;
cellhd.ns_res = (cellhd.north - cellhd.south) / cellhd.rows;
cellhd.ew_res = (cellhd.east - cellhd.west) / cellhd.cols;
}
else {
cellhd.north = 1.;
cellhd.south = 0.;
cellhd.west = 0.;
cellhd.east = 1.;
cellhd.top = 1.;
cellhd.bottom = 1.;
cellhd.rows = 1;
cellhd.rows3 = 1;
cellhd.cols = 1;
cellhd.cols3 = 1;
cellhd.depths = 1;
cellhd.ns_res = 1.;
cellhd.ns_res3 = 1.;
cellhd.ew_res = 1.;
cellhd.ew_res3 = 1.;
cellhd.tb_res = 1.;
}
/* suppress boundary splitting ? */
if (flag.no_clean->answer) {
split_distance = -1.;
}
else {
split_distance = 0.;
area_size =
sqrt((cellhd.east - cellhd.west) * (cellhd.north - cellhd.south));
}
/* Fetch input map projection in GRASS form. */
proj_info = NULL;
proj_units = NULL;
Ogr_projection = OGR_L_GetSpatialRef(Ogr_layer); /* should not be freed later */
/* Do we need to create a new location? */
if (param.outloc->answer != NULL) {
/* Convert projection information non-interactively as we can't
* assume the user has a terminal open */
if (GPJ_osr_to_grass(&cellhd, &proj_info,
&proj_units, Ogr_projection, 0) < 0) {
G_fatal_error(_("Unable to convert input map projection to GRASS "
"format; cannot create new location."));
}
else {
G_make_location(param.outloc->answer, &cellhd,
proj_info, proj_units, NULL);
G_message(_("Location <%s> created"), param.outloc->answer);
}
/* If the i flag is set, clean up? and exit here */
if(flag.no_import->answer)
{
exit(EXIT_SUCCESS);
}
}
else {
int err = 0;
/* Projection only required for checking so convert non-interactively */
if (GPJ_osr_to_grass(&cellhd, &proj_info,
&proj_units, Ogr_projection, 0) < 0)
G_warning(_("Unable to convert input map projection information to "
"GRASS format for checking"));
/* Does the projection of the current location match the dataset? */
/* G_get_window seems to be unreliable if the location has been changed */
G__get_window(&loc_wind, "", "DEFAULT_WIND", "PERMANENT");
/* fetch LOCATION PROJ info */
if (loc_wind.proj != PROJECTION_XY) {
loc_proj_info = G_get_projinfo();
loc_proj_units = G_get_projunits();
}
if (flag.over->answer) {
cellhd.proj = loc_wind.proj;
cellhd.zone = loc_wind.zone;
G_message(_("Over-riding projection check"));
}
else if (loc_wind.proj != cellhd.proj
|| (err =
G_compare_projections(loc_proj_info, loc_proj_units,
proj_info, proj_units)) != TRUE) {
int i_value;
strcpy(error_msg,
_("Projection of dataset does not"
" appear to match current location.\n\n"));
/* TODO: output this info sorted by key: */
if (loc_wind.proj != cellhd.proj || err != -2) {
if (loc_proj_info != NULL) {
strcat(error_msg, _("GRASS LOCATION PROJ_INFO is:\n"));
for (i_value = 0; i_value < loc_proj_info->nitems;
i_value++)
sprintf(error_msg + strlen(error_msg), "%s: %s\n",
loc_proj_info->key[i_value],
loc_proj_info->value[i_value]);
strcat(error_msg, "\n");
}
if (proj_info != NULL) {
strcat(error_msg, _("Import dataset PROJ_INFO is:\n"));
for (i_value = 0; i_value < proj_info->nitems; i_value++)
sprintf(error_msg + strlen(error_msg), "%s: %s\n",
proj_info->key[i_value],
proj_info->value[i_value]);
}
else {
strcat(error_msg, _("Import dataset PROJ_INFO is:\n"));
if (cellhd.proj == PROJECTION_XY)
sprintf(error_msg + strlen(error_msg),
"Dataset proj = %d (unreferenced/unknown)\n",
cellhd.proj);
else if (cellhd.proj == PROJECTION_LL)
sprintf(error_msg + strlen(error_msg),
"Dataset proj = %d (lat/long)\n",
cellhd.proj);
else if (cellhd.proj == PROJECTION_UTM)
sprintf(error_msg + strlen(error_msg),
"Dataset proj = %d (UTM), zone = %d\n",
cellhd.proj, cellhd.zone);
else if (cellhd.proj == PROJECTION_SP)
sprintf(error_msg + strlen(error_msg),
"Dataset proj = %d (State Plane), zone = %d\n",
cellhd.proj, cellhd.zone);
else
sprintf(error_msg + strlen(error_msg),
"Dataset proj = %d (unknown), zone = %d\n",
cellhd.proj, cellhd.zone);
}
}
else {
if (loc_proj_units != NULL) {
strcat(error_msg, "GRASS LOCATION PROJ_UNITS is:\n");
for (i_value = 0; i_value < loc_proj_units->nitems;
i_value++)
sprintf(error_msg + strlen(error_msg), "%s: %s\n",
loc_proj_units->key[i_value],
loc_proj_units->value[i_value]);
strcat(error_msg, "\n");
}
if (proj_units != NULL) {
strcat(error_msg, "Import dataset PROJ_UNITS is:\n");
for (i_value = 0; i_value < proj_units->nitems; i_value++)
sprintf(error_msg + strlen(error_msg), "%s: %s\n",
proj_units->key[i_value],
proj_units->value[i_value]);
}
}
sprintf(error_msg + strlen(error_msg),
_("\nYou can use the -o flag to %s to override this projection check.\n"),
G_program_name());
strcat(error_msg,
_("Consider generating a new location with 'location' parameter"
" from input data set.\n"));
G_fatal_error(error_msg);
}
else {
G_message(_("Projection of input dataset and current location "
"appear to match"));
}
}
db_init_string(&sql);
db_init_string(&strval);
/* open output vector */
/* strip any @mapset from vector output name */
G_find_vector(output, G_mapset());
Vect_open_new(&Map, output, flag.z->answer != 0);
Out = ⤅
n_polygon_boundaries = 0;
if (!flag.no_clean->answer) {
/* check if we need a tmp vector */
/* estimate distance for boundary splitting --> */
for (layer = 0; layer < nlayers; layer++) {
layer_id = layers[layer];
Ogr_layer = OGR_DS_GetLayer(Ogr_ds, layer_id);
Ogr_featuredefn = OGR_L_GetLayerDefn(Ogr_layer);
n_features = feature_count = 0;
n_features = OGR_L_GetFeatureCount(Ogr_layer, 1);
OGR_L_ResetReading(Ogr_layer);
/* count polygons and isles */
G_message(_("Counting polygons for %d features (OGR layer <%s>)..."),
n_features, layer_names[layer]);
while ((Ogr_feature = OGR_L_GetNextFeature(Ogr_layer)) != NULL) {
G_percent(feature_count++, n_features, 1); /* show something happens */
/* Geometry */
Ogr_geometry = OGR_F_GetGeometryRef(Ogr_feature);
if (Ogr_geometry != NULL) {
poly_count(Ogr_geometry, (type & GV_BOUNDARY));
}
OGR_F_Destroy(Ogr_feature);
}
}
G_debug(1, "n polygon boundaries: %d", n_polygon_boundaries);
if (n_polygon_boundaries > 50) {
split_distance =
area_size / log(n_polygon_boundaries);
/* divisor is the handle: increase divisor to decrease split_distance */
split_distance = split_distance / 5.;
G_debug(1, "root of area size: %f", area_size);
G_verbose_message(_("Boundary splitting distance in map units: %G"),
split_distance);
}
/* <-- estimate distance for boundary splitting */
use_tmp_vect = n_polygon_boundaries > 0;
if (use_tmp_vect) {
/* open temporary vector, do the work in the temporary vector
* at the end copy alive lines to output vector
* in case of polygons this reduces the coor file size by a factor of 2 to 5
* only needed when cleaning polygons */
sprintf(tempvect, "%s_tmp", output);
G_verbose_message(_("Using temporary vector <%s>"), tempvect);
Vect_open_new(&Tmp, tempvect, flag.z->answer != 0);
Out = &Tmp;
}
}
Vect_hist_command(&Map);
/* Points and lines are written immediately with categories. Boundaries of polygons are
* written to the vector then cleaned and centroids are calculated for all areas in cleaan vector.
* Then second pass through finds all centroids in each polygon feature and adds its category
* to the centroid. The result is that one centroids may have 0, 1 ore more categories
* of one ore more (more input layers) fields. */
with_z = 0;
for (layer = 0; layer < nlayers; layer++) {
layer_id = layers[layer];
Ogr_layer = OGR_DS_GetLayer(Ogr_ds, layer_id);
Ogr_featuredefn = OGR_L_GetLayerDefn(Ogr_layer);
/* Add DB link */
if (!flag.notab->answer) {
char *cat_col_name = GV_KEY_COLUMN;
if (nlayers == 1) { /* one layer only */
Fi = Vect_default_field_info(&Map, layer + 1, NULL,
GV_1TABLE);
}
else {
Fi = Vect_default_field_info(&Map, layer + 1, NULL,
GV_MTABLE);
}
if (ncnames > 0) {
cat_col_name = param.cnames->answers[0];
}
Vect_map_add_dblink(&Map, layer + 1, layer_names[layer], Fi->table,
cat_col_name, Fi->database, Fi->driver);
ncols = OGR_FD_GetFieldCount(Ogr_featuredefn);
G_debug(2, "%d columns", ncols);
/* Create table */
sprintf(buf, "create table %s (%s integer", Fi->table,
cat_col_name);
db_set_string(&sql, buf);
for (i = 0; i < ncols; i++) {
Ogr_field = OGR_FD_GetFieldDefn(Ogr_featuredefn, i);
Ogr_ftype = OGR_Fld_GetType(Ogr_field);
G_debug(3, "Ogr_ftype: %i", Ogr_ftype); /* look up below */
if (i < ncnames - 1) {
Ogr_fieldname = G_store(param.cnames->answers[i + 1]);
}
else {
/* Change column names to [A-Za-z][A-Za-z0-9_]* */
Ogr_fieldname = G_store(OGR_Fld_GetNameRef(Ogr_field));
G_debug(3, "Ogr_fieldname: '%s'", Ogr_fieldname);
G_str_to_sql(Ogr_fieldname);
G_debug(3, "Ogr_fieldname: '%s'", Ogr_fieldname);
}
/* avoid that we get the 'cat' column twice */
if (strcmp(Ogr_fieldname, GV_KEY_COLUMN) == 0) {
sprintf(namebuf, "%s_", Ogr_fieldname);
Ogr_fieldname = G_store(namebuf);
}
/* captial column names are a pain in SQL */
if (flag.tolower->answer)
G_str_to_lower(Ogr_fieldname);
if (strcmp(OGR_Fld_GetNameRef(Ogr_field), Ogr_fieldname) != 0) {
G_warning(_("Column name changed: '%s' -> '%s'"),
OGR_Fld_GetNameRef(Ogr_field), Ogr_fieldname);
}
/** Simple 32bit integer OFTInteger = 0 **/
/** List of 32bit integers OFTIntegerList = 1 **/
/** Double Precision floating point OFTReal = 2 **/
/** List of doubles OFTRealList = 3 **/
/** String of ASCII chars OFTString = 4 **/
/** Array of strings OFTStringList = 5 **/
/** Double byte string (unsupported) OFTWideString = 6 **/
/** List of wide strings (unsupported) OFTWideStringList = 7 **/
/** Raw Binary data (unsupported) OFTBinary = 8 **/
/** OFTDate = 9 **/
/** OFTTime = 10 **/
/** OFTDateTime = 11 **/
if (Ogr_ftype == OFTInteger) {
sprintf(buf, ", %s integer", Ogr_fieldname);
}
else if (Ogr_ftype == OFTIntegerList) {
/* hack: treat as string */
sprintf(buf, ", %s varchar ( %d )", Ogr_fieldname,
OFTIntegerListlength);
G_warning(_("Writing column <%s> with fixed length %d chars (may be truncated)"),
Ogr_fieldname, OFTIntegerListlength);
}
else if (Ogr_ftype == OFTReal) {
sprintf(buf, ", %s double precision", Ogr_fieldname);
#if GDAL_VERSION_NUM >= 1320
}
else if (Ogr_ftype == OFTDate) {
sprintf(buf, ", %s date", Ogr_fieldname);
}
else if (Ogr_ftype == OFTTime) {
sprintf(buf, ", %s time", Ogr_fieldname);
}
else if (Ogr_ftype == OFTDateTime) {
sprintf(buf, ", %s datetime", Ogr_fieldname);
#endif
}
else if (Ogr_ftype == OFTString) {
int fwidth;
fwidth = OGR_Fld_GetWidth(Ogr_field);
/* TODO: read all records first and find the longest string length */
if (fwidth == 0) {
G_warning(_("Width for column %s set to 255 (was not specified by OGR), "
"some strings may be truncated!"),
Ogr_fieldname);
fwidth = 255;
}
sprintf(buf, ", %s varchar ( %d )", Ogr_fieldname,
fwidth);
}
else if (Ogr_ftype == OFTStringList) {
/* hack: treat as string */
sprintf(buf, ", %s varchar ( %d )", Ogr_fieldname,
OFTIntegerListlength);
G_warning(_("Writing column %s with fixed length %d chars (may be truncated)"),
Ogr_fieldname, OFTIntegerListlength);
}
else {
G_warning(_("Column type not supported (%s)"),
Ogr_fieldname);
buf[0] = 0;
}
db_append_string(&sql, buf);
G_free(Ogr_fieldname);
}
db_append_string(&sql, ")");
G_debug(3, db_get_string(&sql));
driver =
db_start_driver_open_database(Fi->driver,
Vect_subst_var(Fi->database,
&Map));
if (driver == NULL) {
G_fatal_error(_("Unable open database <%s> by driver <%s>"),
Vect_subst_var(Fi->database, &Map), Fi->driver);
}
if (db_execute_immediate(driver, &sql) != DB_OK) {
db_close_database(driver);
db_shutdown_driver(driver);
G_fatal_error(_("Unable to create table: '%s'"),
db_get_string(&sql));
}
if (db_create_index2(driver, Fi->table, cat_col_name) != DB_OK)
G_warning(_("Unable to create index for table <%s>, key <%s>"),
Fi->table, cat_col_name);
if (db_grant_on_table
(driver, Fi->table, DB_PRIV_SELECT,
DB_GROUP | DB_PUBLIC) != DB_OK)
G_fatal_error(_("Unable to grant privileges on table <%s>"),
Fi->table);
db_begin_transaction(driver);
}
/* Import feature */
cat = 1;
nogeom = 0;
OGR_L_ResetReading(Ogr_layer);
n_features = feature_count = 0;
n_features = OGR_L_GetFeatureCount(Ogr_layer, 1);
G_important_message(_("Importing %d features (OGR layer <%s>)..."),
n_features, layer_names[layer]);
while ((Ogr_feature = OGR_L_GetNextFeature(Ogr_layer)) != NULL) {
G_percent(feature_count++, n_features, 1); /* show something happens */
/* Geometry */
Ogr_geometry = OGR_F_GetGeometryRef(Ogr_feature);
if (Ogr_geometry == NULL) {
nogeom++;
}
else {
dim = OGR_G_GetCoordinateDimension(Ogr_geometry);
if (dim > 2)
with_z = 1;
geom(Ogr_geometry, Out, layer + 1, cat, min_area, type,
flag.no_clean->answer);
}
/* Attributes */
if (!flag.notab->answer) {
sprintf(buf, "insert into %s values ( %d", Fi->table, cat);
db_set_string(&sql, buf);
for (i = 0; i < ncols; i++) {
Ogr_field = OGR_FD_GetFieldDefn(Ogr_featuredefn, i);
Ogr_ftype = OGR_Fld_GetType(Ogr_field);
if (OGR_F_IsFieldSet(Ogr_feature, i)) {
if (Ogr_ftype == OFTInteger || Ogr_ftype == OFTReal) {
sprintf(buf, ", %s",
OGR_F_GetFieldAsString(Ogr_feature, i));
#if GDAL_VERSION_NUM >= 1320
/* should we use OGR_F_GetFieldAsDateTime() here ? */
}
else if (Ogr_ftype == OFTDate || Ogr_ftype == OFTTime
|| Ogr_ftype == OFTDateTime) {
char *newbuf;
db_set_string(&strval, (char *)
OGR_F_GetFieldAsString(Ogr_feature,
i));
db_double_quote_string(&strval);
sprintf(buf, ", '%s'", db_get_string(&strval));
newbuf = G_str_replace(buf, "/", "-"); /* fix 2001/10/21 to 2001-10-21 */
sprintf(buf, "%s", newbuf);
#endif
}
else if (Ogr_ftype == OFTString ||
Ogr_ftype == OFTIntegerList) {
db_set_string(&strval, (char *)
OGR_F_GetFieldAsString(Ogr_feature,
i));
db_double_quote_string(&strval);
sprintf(buf, ", '%s'", db_get_string(&strval));
}
}
else {
/* G_warning (_("Column value not set" )); */
if (Ogr_ftype == OFTInteger || Ogr_ftype == OFTReal) {
sprintf(buf, ", NULL");
#if GDAL_VERSION_NUM >= 1320
}
else if (Ogr_ftype == OFTString ||
Ogr_ftype == OFTIntegerList ||
Ogr_ftype == OFTDate) {
#else
}
else if (Ogr_ftype == OFTString ||
Ogr_ftype == OFTIntegerList) {
#endif
sprintf(buf, ", ''");
}
}
db_append_string(&sql, buf);
}
db_append_string(&sql, " )");
G_debug(3, db_get_string(&sql));
if (db_execute_immediate(driver, &sql) != DB_OK) {
db_close_database(driver);
db_shutdown_driver(driver);
G_fatal_error(_("Cannot insert new row: %s"),
db_get_string(&sql));
}
}
OGR_F_Destroy(Ogr_feature);
cat++;
}
G_percent(1, 1, 1); /* finish it */
if (!flag.notab->answer) {
db_commit_transaction(driver);
db_close_database_shutdown_driver(driver);
}
if (nogeom > 0)
G_warning(_("%d %s without geometry"), nogeom,
nogeom == 1 ? "feature" : "features");
}
separator = "-----------------------------------------------------";
G_message("%s", separator);
if (use_tmp_vect) {
/* TODO: is it necessary to build here? probably not, consumes time */
/* GV_BUILD_BASE is sufficient to toggle boundary cleaning */
Vect_build_partial(&Tmp, GV_BUILD_BASE);
}
if (use_tmp_vect && !flag.no_clean->answer &&
Vect_get_num_primitives(Out, GV_BOUNDARY) > 0) {
int ret, centr, ncentr, otype, n_overlaps, n_nocat;
CENTR *Centr;
struct spatial_index si;
double x, y, total_area, overlap_area, nocat_area;
struct bound_box box;
struct line_pnts *Points;
int nmodif;
Points = Vect_new_line_struct();
G_message("%s", separator);
G_warning(_("Cleaning polygons, result is not guaranteed!"));
if (snap >= 0) {
G_message("%s", separator);
G_message(_("Snapping boundaries (threshold = %.3e)..."), snap);
Vect_snap_lines(&Tmp, GV_BOUNDARY, snap, NULL);
}
/* It is not to clean to snap centroids, but I have seen data with 2 duplicate polygons
* (as far as decimal places were printed) and centroids were not identical */
/* Disabled, because overlapping polygons result in many duplicate centroids anyway */
/*
fprintf ( stderr, separator );
fprintf ( stderr, "Snap centroids (threshold 0.000001):\n" );
Vect_snap_lines ( &Map, GV_CENTROID, 0.000001, NULL, stderr );
*/
G_message("%s", separator);
G_message(_("Breaking polygons..."));
Vect_break_polygons(&Tmp, GV_BOUNDARY, NULL);
/* It is important to remove also duplicate centroids in case of duplicate input polygons */
G_message("%s", separator);
G_message(_("Removing duplicates..."));
Vect_remove_duplicates(&Tmp, GV_BOUNDARY | GV_CENTROID, NULL);
/* in non-pathological cases, the bulk of the cleaning is now done */
/* Vect_clean_small_angles_at_nodes() can change the geometry so that new intersections
* are created. We must call Vect_break_lines(), Vect_remove_duplicates()
* and Vect_clean_small_angles_at_nodes() until no more small angles are found */
do {
G_message("%s", separator);
G_message(_("Breaking boundaries..."));
Vect_break_lines(&Tmp, GV_BOUNDARY, NULL);
G_message("%s", separator);
G_message(_("Removing duplicates..."));
Vect_remove_duplicates(&Tmp, GV_BOUNDARY, NULL);
G_message("%s", separator);
G_message(_("Cleaning boundaries at nodes..."));
nmodif =
Vect_clean_small_angles_at_nodes(&Tmp, GV_BOUNDARY, NULL);
} while (nmodif > 0);
/* merge boundaries */
G_message("%s", separator);
G_message(_("Merging boundaries..."));
Vect_merge_lines(&Tmp, GV_BOUNDARY, NULL, NULL);
G_message("%s", separator);
if (type & GV_BOUNDARY) { /* that means lines were converted to boundaries */
G_message(_("Changing boundary dangles to lines..."));
Vect_chtype_dangles(&Tmp, -1.0, NULL);
}
else {
G_message(_("Removing dangles..."));
Vect_remove_dangles(&Tmp, GV_BOUNDARY, -1.0, NULL);
}
G_message("%s", separator);
if (type & GV_BOUNDARY) {
G_message(_("Changing boundary bridges to lines..."));
Vect_chtype_bridges(&Tmp, NULL);
}
else {
G_message(_("Removing bridges..."));
Vect_remove_bridges(&Tmp, NULL);
}
/* Boundaries are hopefully clean, build areas */
G_message("%s", separator);
Vect_build_partial(&Tmp, GV_BUILD_ATTACH_ISLES);
/* Calculate new centroids for all areas, centroids have the same id as area */
ncentr = Vect_get_num_areas(&Tmp);
G_debug(3, "%d centroids/areas", ncentr);
Centr = (CENTR *) G_calloc(ncentr + 1, sizeof(CENTR));
Vect_spatial_index_init(&si, 0);
for (centr = 1; centr <= ncentr; centr++) {
Centr[centr].valid = 0;
Centr[centr].cats = Vect_new_cats_struct();
ret = Vect_get_point_in_area(&Tmp, centr, &x, &y);
if (ret < 0) {
G_warning(_("Unable to calculate area centroid"));
continue;
}
Centr[centr].x = x;
Centr[centr].y = y;
Centr[centr].valid = 1;
box.N = box.S = y;
box.E = box.W = x;
box.T = box.B = 0;
Vect_spatial_index_add_item(&si, centr, &box);
}
/* Go through all layers and find centroids for each polygon */
for (layer = 0; layer < nlayers; layer++) {
G_message("%s", separator);
G_message(_("Finding centroids for OGR layer <%s>..."), layer_names[layer]);
layer_id = layers[layer];
Ogr_layer = OGR_DS_GetLayer(Ogr_ds, layer_id);
n_features = OGR_L_GetFeatureCount(Ogr_layer, 1);
OGR_L_ResetReading(Ogr_layer);
cat = 0; /* field = layer + 1 */
G_percent(cat, n_features, 2);
while ((Ogr_feature = OGR_L_GetNextFeature(Ogr_layer)) != NULL) {
cat++;
G_percent(cat, n_features, 2);
/* Geometry */
Ogr_geometry = OGR_F_GetGeometryRef(Ogr_feature);
if (Ogr_geometry != NULL) {
centroid(Ogr_geometry, Centr, &si, layer + 1, cat,
min_area, type);
}
OGR_F_Destroy(Ogr_feature);
}
}
/* Write centroids */
G_message("%s", separator);
G_message(_("Writing centroids..."));
n_overlaps = n_nocat = 0;
total_area = overlap_area = nocat_area = 0.0;
for (centr = 1; centr <= ncentr; centr++) {
double area;
G_percent(centr, ncentr, 2);
area = Vect_get_area_area(&Tmp, centr);
total_area += area;
if (!(Centr[centr].valid)) {
continue;
}
if (Centr[centr].cats->n_cats == 0) {
nocat_area += area;
n_nocat++;
continue;
}
if (Centr[centr].cats->n_cats > 1) {
Vect_cat_set(Centr[centr].cats, nlayers + 1,
Centr[centr].cats->n_cats);
overlap_area += area;
n_overlaps++;
}
Vect_reset_line(Points);
Vect_append_point(Points, Centr[centr].x, Centr[centr].y, 0.0);
if (type & GV_POINT)
otype = GV_POINT;
else
otype = GV_CENTROID;
Vect_write_line(&Tmp, otype, Points, Centr[centr].cats);
}
if (Centr)
G_free(Centr);
Vect_spatial_index_destroy(&si);
if (n_overlaps > 0) {
G_warning(_("%d areas represent more (overlapping) features, because polygons overlap "
"in input layer(s). Such areas are linked to more than 1 row in attribute table. "
"The number of features for those areas is stored as category in layer %d"),
n_overlaps, nlayers + 1);
}
G_message("%s", separator);
Vect_hist_write(&Map, separator);
Vect_hist_write(&Map, "\n");
sprintf(buf, _("%d input polygons\n"), n_polygons);
G_message(_("%d input polygons"), n_polygons);
Vect_hist_write(&Map, buf);
sprintf(buf, _("Total area: %G (%d areas)\n"), total_area, ncentr);
G_message(_("Total area: %G (%d areas)"), total_area, ncentr);
Vect_hist_write(&Map, buf);
sprintf(buf, _("Overlapping area: %G (%d areas)\n"), overlap_area,
n_overlaps);
G_message(_("Overlapping area: %G (%d areas)"), overlap_area,
n_overlaps);
Vect_hist_write(&Map, buf);
sprintf(buf, _("Area without category: %G (%d areas)\n"), nocat_area,
n_nocat);
G_message(_("Area without category: %G (%d areas)"), nocat_area,
n_nocat);
Vect_hist_write(&Map, buf);
G_message("%s", separator);
}
/* needed?
* OGR_DS_Destroy( Ogr_ds );
*/
if (use_tmp_vect) {
/* Copy temporary vector to output vector */
Vect_copy_map_lines(&Tmp, &Map);
/* release memory occupied by topo, we may need that memory for main output */
Vect_set_release_support(&Tmp);
Vect_close(&Tmp);
Vect_delete(tempvect);
}
Vect_build(&Map);
Vect_close(&Map);
/* -------------------------------------------------------------------- */
/* Extend current window based on dataset. */
/* -------------------------------------------------------------------- */
if (flag.extend->answer) {
G_get_default_window(&loc_wind);
loc_wind.north = MAX(loc_wind.north, cellhd.north);
loc_wind.south = MIN(loc_wind.south, cellhd.south);
loc_wind.west = MIN(loc_wind.west, cellhd.west);
loc_wind.east = MAX(loc_wind.east, cellhd.east);
loc_wind.rows = (int)ceil((loc_wind.north - loc_wind.south)
/ loc_wind.ns_res);
loc_wind.south = loc_wind.north - loc_wind.rows * loc_wind.ns_res;
loc_wind.cols = (int)ceil((loc_wind.east - loc_wind.west)
/ loc_wind.ew_res);
loc_wind.east = loc_wind.west + loc_wind.cols * loc_wind.ew_res;
G__put_window(&loc_wind, "../PERMANENT", "DEFAULT_WIND");
}
if (with_z && !flag.z->answer)
G_warning(_("Input data contains 3D features. Created vector is 2D only, "
"use -z flag to import 3D vector."));
exit(EXIT_SUCCESS);
}
int main(int argc, char *argv[])
{
struct Map_info In, Out;
static struct line_pnts *Points;
struct line_cats *Cats;
struct GModule *module; /* GRASS module for parsing arguments */
struct Option *map_in, *map_out;
struct Option *method_opt, *afield_opt, *nfield_opt, *abcol,
*afcol, *ncol;
struct Flag *add_f;
int with_z;
int afield, nfield, mask_type;
dglGraph_s *graph;
int *component, nnodes, type, i, nlines, components, max_cat;
char buf[2000], *covered;
char *desc;
/* Attribute table */
dbString sql;
dbDriver *driver;
struct field_info *Fi;
/* initialize GIS environment */
G_gisinit(argv[0]); /* reads grass env, stores program name to G_program_name() */
/* initialize module */
module = G_define_module();
G_add_keyword(_("vector"));
G_add_keyword(_("network"));
G_add_keyword(_("components"));
module->description =
_("Computes strongly and weakly connected components in the network.");
/* Define the different options as defined in gis.h */
map_in = G_define_standard_option(G_OPT_V_INPUT);
afield_opt = G_define_standard_option(G_OPT_V_FIELD);
afield_opt->key = "arc_layer";
afield_opt->answer = "1";
afield_opt->label = _("Arc layer");
afield_opt->guisection = _("Cost");
nfield_opt = G_define_standard_option(G_OPT_V_FIELD);
nfield_opt->key = "node_layer";
nfield_opt->answer = "2";
nfield_opt->label = _("Node layer");
nfield_opt->guisection = _("Cost");
afcol = G_define_standard_option(G_OPT_DB_COLUMN);
afcol->key = "arc_column";
afcol->required = NO;
afcol->description =
_("Arc forward/both direction(s) cost column (number)");
afcol->guisection = _("Cost");
abcol = G_define_standard_option(G_OPT_DB_COLUMN);
abcol->key = "arc_backward_column";
abcol->required = NO;
abcol->description = _("Arc backward direction cost column (number)");
abcol->guisection = _("Cost");
ncol = G_define_option();
ncol->key = "node_column";
ncol->type = TYPE_STRING;
ncol->required = NO;
ncol->description = _("Node cost column (number)");
ncol->guisection = _("Cost");
map_out = G_define_standard_option(G_OPT_V_OUTPUT);
method_opt = G_define_option();
method_opt->key = "method";
method_opt->type = TYPE_STRING;
method_opt->required = YES;
method_opt->multiple = NO;
method_opt->options = "weak,strong";
desc = NULL;
G_asprintf(&desc,
"weak;%s;strong;%s",
_("Weakly connected components"),
_("Strongly connected components"));
method_opt->descriptions = desc;
method_opt->description = _("Type of components");
add_f = G_define_flag();
add_f->key = 'a';
add_f->description = _("Add points on nodes");
/* options and flags parser */
if (G_parser(argc, argv))
exit(EXIT_FAILURE);
/* TODO: make an option for this */
mask_type = GV_LINE | GV_BOUNDARY;
Points = Vect_new_line_struct();
Cats = Vect_new_cats_struct();
Vect_check_input_output_name(map_in->answer, map_out->answer,
G_FATAL_EXIT);
Vect_set_open_level(2);
if (1 > Vect_open_old(&In, map_in->answer, ""))
G_fatal_error(_("Unable to open vector map <%s>"), map_in->answer);
with_z = Vect_is_3d(&In);
if (0 > Vect_open_new(&Out, map_out->answer, with_z)) {
Vect_close(&In);
G_fatal_error(_("Unable to create vector map <%s>"), map_out->answer);
}
/* parse filter option and select appropriate lines */
afield = Vect_get_field_number(&In, afield_opt->answer);
nfield = Vect_get_field_number(&In, nfield_opt->answer);
if (0 != Vect_net_build_graph(&In, mask_type, afield, nfield, afcol->answer,
abcol->answer, ncol->answer, 0, 2))
G_fatal_error(_("Unable to build graph for vector map <%s>"), Vect_get_full_name(&In));
graph = Vect_net_get_graph(&In);
nnodes = Vect_get_num_nodes(&In);
component = (int *)G_calloc(nnodes + 1, sizeof(int));
covered = (char *)G_calloc(nnodes + 1, sizeof(char));
if (!component || !covered) {
G_fatal_error(_("Out of memory"));
exit(EXIT_FAILURE);
}
/* Create table */
Fi = Vect_default_field_info(&Out, 1, NULL, GV_1TABLE);
Vect_map_add_dblink(&Out, 1, NULL, Fi->table, GV_KEY_COLUMN, Fi->database,
Fi->driver);
db_init_string(&sql);
driver = db_start_driver_open_database(Fi->driver, Fi->database);
if (driver == NULL)
G_fatal_error(_("Unable to open database <%s> by driver <%s>"),
Fi->database, Fi->driver);
sprintf(buf, "create table %s ( cat integer, comp integer)", Fi->table);
db_set_string(&sql, buf);
G_debug(2, "%s", db_get_string(&sql));
if (db_execute_immediate(driver, &sql) != DB_OK) {
db_close_database_shutdown_driver(driver);
G_fatal_error(_("Unable to create table: '%s'"), db_get_string(&sql));
}
if (db_create_index2(driver, Fi->table, GV_KEY_COLUMN) != DB_OK)
G_warning(_("Cannot create index"));
if (db_grant_on_table
(driver, Fi->table, DB_PRIV_SELECT, DB_GROUP | DB_PUBLIC) != DB_OK)
G_fatal_error(_("Cannot grant privileges on table <%s>"), Fi->table);
db_begin_transaction(driver);
if (method_opt->answer[0] == 'w') {
G_message(_("Computing weakly connected components..."));
components = NetA_weakly_connected_components(graph, component);
}
else {
G_message(_("Computing strongly connected components..."));
components = NetA_strongly_connected_components(graph, component);
}
G_debug(3, "Components: %d", components);
G_message(_("Writing output..."));
Vect_copy_head_data(&In, &Out);
Vect_hist_copy(&In, &Out);
Vect_hist_command(&Out);
nlines = Vect_get_num_lines(&In);
max_cat = 1;
G_percent(0, nlines, 4);
for (i = 1; i <= nlines; i++) {
int comp, cat;
G_percent(i, nlines, 4);
type = Vect_read_line(&In, Points, Cats, i);
if (!Vect_cat_get(Cats, afield, &cat))
continue;
if (type == GV_LINE || type == GV_BOUNDARY) {
int node1, node2;
Vect_get_line_nodes(&In, i, &node1, &node2);
if (component[node1] == component[node2]) {
comp = component[node1];
}
else {
continue;
}
}
else if (type == GV_POINT) {
int node;
/* Vect_get_line_nodes(&In, i, &node, NULL); */
node = Vect_find_node(&In, Points->x[0], Points->y[0], Points->z[0], 0, 0);
if (!node)
continue;
comp = component[node];
covered[node] = 1;
}
else
continue;
cat = max_cat++;
Vect_reset_cats(Cats);
Vect_cat_set(Cats, 1, cat);
Vect_write_line(&Out, type, Points, Cats);
insert_new_record(driver, Fi, &sql, cat, comp);
}
/*add points on nodes not covered by any point in the network */
if (add_f->answer) {
for (i = 1; i <= nnodes; i++)
if (!covered[i]) {
Vect_reset_cats(Cats);
Vect_cat_set(Cats, 1, max_cat);
NetA_add_point_on_node(&In, &Out, i, Cats);
insert_new_record(driver, Fi, &sql, max_cat++, component[i]);
}
}
db_commit_transaction(driver);
db_close_database_shutdown_driver(driver);
Vect_close(&In);
Vect_build(&Out);
Vect_close(&Out);
G_done_msg(_("Found %d components."), components);
exit(EXIT_SUCCESS);
}
int main(int argc, char *argv[])
{
struct Map_info In, Out;
static struct line_pnts *Points, *PPoints;
struct line_cats *Cats, *TCats;
struct ilist *slist;
struct GModule *module; /* GRASS module for parsing arguments */
struct Option *map_in, *map_out;
struct Option *catf_opt, *fieldf_opt, *wheref_opt;
struct Option *catt_opt, *fieldt_opt, *wheret_opt, *typet_opt;
struct Option *afield_opt, *nfield_opt, *abcol, *afcol, *ncol, *atype_opt;
struct Flag *geo_f, *segments_f;
int with_z, geo, segments;
int atype, ttype;
struct varray *varrayf, *varrayt;
int flayer, tlayer;
int afield, nfield;
dglGraph_s *graph;
struct ilist *nodest;
int i, j, nnodes, nlines;
int *dst, *nodes_to_features;
int from_nr; /* 'from' features not reachable */
dglInt32_t **nxt;
struct line_cats **on_path;
char *segdir;
char buf[2000];
/* Attribute table */
dbString sql;
dbDriver *driver;
struct field_info *Fi;
/* initialize GIS environment */
G_gisinit(argv[0]); /* reads grass env, stores program name to G_program_name() */
/* initialize module */
module = G_define_module();
G_add_keyword(_("vector"));
G_add_keyword(_("network"));
G_add_keyword(_("shortest path"));
module->label = _("Computes shortest distance via the network between "
"the given sets of features.");
module->description =
_("Finds the shortest paths from each 'from' point to the nearest 'to' feature "
"and various information about this relation are uploaded to the attribute table.");
/* Define the different options as defined in gis.h */
map_in = G_define_standard_option(G_OPT_V_INPUT);
map_out = G_define_standard_option(G_OPT_V_OUTPUT);
afield_opt = G_define_standard_option(G_OPT_V_FIELD);
afield_opt->key = "arc_layer";
afield_opt->answer = "1";
afield_opt->label = _("Arc layer");
afield_opt->guisection = _("Cost");
atype_opt = G_define_standard_option(G_OPT_V_TYPE);
atype_opt->key = "arc_type";
atype_opt->options = "line,boundary";
atype_opt->answer = "line,boundary";
atype_opt->label = _("Arc type");
atype_opt->guisection = _("Cost");
nfield_opt = G_define_standard_option(G_OPT_V_FIELD);
nfield_opt->key = "node_layer";
nfield_opt->answer = "2";
nfield_opt->label = _("Node layer");
nfield_opt->guisection = _("Cost");
fieldf_opt = G_define_standard_option(G_OPT_V_FIELD);
fieldf_opt->key = "from_layer";
fieldf_opt->label = _("From layer number or name");
fieldf_opt->guisection = _("From");
catf_opt = G_define_standard_option(G_OPT_V_CATS);
catf_opt->key = "from_cats";
catf_opt->label = _("From category values");
catf_opt->guisection = _("From");
wheref_opt = G_define_standard_option(G_OPT_DB_WHERE);
wheref_opt->key = "from_where";
wheref_opt->label =
_("From WHERE conditions of SQL statement without 'where' keyword");
wheref_opt->guisection = _("From");
fieldt_opt = G_define_standard_option(G_OPT_V_FIELD);
fieldt_opt->key = "to_layer";
fieldt_opt->description = _("To layer number or name");
fieldt_opt->guisection = _("To");
typet_opt = G_define_standard_option(G_OPT_V_TYPE);
typet_opt->key = "to_type";
typet_opt->options = "point,line,boundary";
typet_opt->answer = "point";
typet_opt->description = _("To feature type");
typet_opt->guisection = _("To");
catt_opt = G_define_standard_option(G_OPT_V_CATS);
catt_opt->key = "to_cats";
catt_opt->label = _("To category values");
catt_opt->guisection = _("To");
wheret_opt = G_define_standard_option(G_OPT_DB_WHERE);
wheret_opt->key = "to_where";
wheret_opt->label =
_("To WHERE conditions of SQL statement without 'where' keyword");
wheret_opt->guisection = _("To");
afcol = G_define_standard_option(G_OPT_DB_COLUMN);
afcol->key = "arc_column";
afcol->required = NO;
afcol->description =
_("Arc forward/both direction(s) cost column (number)");
afcol->guisection = _("Cost");
abcol = G_define_standard_option(G_OPT_DB_COLUMN);
abcol->key = "arc_backward_column";
abcol->required = NO;
abcol->description = _("Arc backward direction cost column (number)");
abcol->guisection = _("Cost");
ncol = G_define_standard_option(G_OPT_DB_COLUMN);
ncol->key = "node_column";
ncol->required = NO;
ncol->description = _("Node cost column (number)");
ncol->guisection = _("Cost");
geo_f = G_define_flag();
geo_f->key = 'g';
geo_f->description =
_("Use geodesic calculation for longitude-latitude locations");
segments_f = G_define_flag();
#if 0
/* use this to sync with v.net.path */
segments_f->key = 's';
segments_f->description = _("Write output as original input segments, "
"not each path as one line.");
#else
segments_f->key = 'l';
segments_f->description = _("Write each output path as one line, "
"not as original input segments.");
#endif
/* options and flags parser */
if (G_parser(argc, argv))
exit(EXIT_FAILURE);
atype = Vect_option_to_types(atype_opt);
ttype = Vect_option_to_types(typet_opt);
Points = Vect_new_line_struct();
PPoints = Vect_new_line_struct();
Cats = Vect_new_cats_struct();
TCats = Vect_new_cats_struct();
slist = G_new_ilist();
Vect_check_input_output_name(map_in->answer, map_out->answer,
G_FATAL_EXIT);
Vect_set_open_level(2);
if (1 > Vect_open_old(&In, map_in->answer, ""))
G_fatal_error(_("Unable to open vector map <%s>"), map_in->answer);
with_z = Vect_is_3d(&In);
if (0 > Vect_open_new(&Out, map_out->answer, with_z)) {
Vect_close(&In);
G_fatal_error(_("Unable to create vector map <%s>"), map_out->answer);
}
if (geo_f->answer) {
geo = 1;
if (G_projection() != PROJECTION_LL)
G_warning(_("The current projection is not longitude-latitude"));
}
else
geo = 0;
#if 0
/* use this to sync with v.net.path */
segments = segments_f->answer;
#else
segments = !segments_f->answer;
#endif
nnodes = Vect_get_num_nodes(&In);
nlines = Vect_get_num_lines(&In);
dst = (int *)G_calloc(nnodes + 1, sizeof(int));
nxt = (dglInt32_t **) G_calloc(nnodes + 1, sizeof(dglInt32_t *));
nodes_to_features = (int *)G_calloc(nnodes + 1, sizeof(int));
on_path =
(struct line_cats **)G_calloc(nlines + 1, sizeof(struct line_cats *));
segdir = (char *)G_calloc(nlines + 1, sizeof(char));
if (!dst || !nxt || !nodes_to_features || !on_path || !segdir)
G_fatal_error(_("Out of memory"));
for (i = 1; i <= nlines; i++) {
on_path[i] = Vect_new_cats_struct();
segdir[i] = 0;
}
/*initialise varrays and nodes list appropriatelly */
afield = Vect_get_field_number(&In, afield_opt->answer);
nfield = Vect_get_field_number(&In, nfield_opt->answer);
flayer = atoi(fieldf_opt->answer);
tlayer = atoi(fieldt_opt->answer);
if (NetA_initialise_varray(&In, flayer, GV_POINT, wheref_opt->answer,
catf_opt->answer, &varrayf) <= 0) {
G_fatal_error(_("No 'from' features selected. "
"Please check options '%s', '%s', '%s'."),
fieldf_opt->key, wheref_opt->key, catf_opt->key);
}
if (NetA_initialise_varray(&In, tlayer, ttype, wheret_opt->answer,
catt_opt->answer, &varrayt) <= 0) {
G_fatal_error(_("No 'to' features selected. "
"Please check options '%s', '%s', '%s'."),
fieldt_opt->key, wheret_opt->key, catt_opt->key);
}
nodest = Vect_new_list();
NetA_varray_to_nodes(&In, varrayt, nodest, nodes_to_features);
if (nodest->n_values == 0)
G_fatal_error(_("No 'to' features"));
if (0 != Vect_net_build_graph(&In, atype, afield, nfield, afcol->answer, abcol->answer,
ncol->answer, geo, 2))
G_fatal_error(_("Unable to build graph for vector map <%s>"), Vect_get_full_name(&In));
graph = Vect_net_get_graph(&In);
G_message(_("Distances to 'to' features ..."));
NetA_distance_to_points(graph, nodest, dst, nxt);
/* Create table */
Fi = Vect_default_field_info(&Out, 1, NULL, GV_1TABLE);
Vect_map_add_dblink(&Out, 1, NULL, Fi->table, GV_KEY_COLUMN, Fi->database,
Fi->driver);
db_init_string(&sql);
driver = db_start_driver_open_database(Fi->driver, Fi->database);
if (driver == NULL)
G_fatal_error(_("Unable to open database <%s> by driver <%s>"),
Fi->database, Fi->driver);
db_set_error_handler_driver(driver);
sprintf(buf,
"create table %s ( cat integer, tcat integer, dist double precision)",
Fi->table);
db_set_string(&sql, buf);
G_debug(2, "%s", db_get_string(&sql));
if (db_execute_immediate(driver, &sql) != DB_OK) {
G_fatal_error(_("Unable to create table: '%s'"), db_get_string(&sql));
}
if (db_create_index2(driver, Fi->table, GV_KEY_COLUMN) != DB_OK)
G_warning(_("Cannot create index"));
if (db_grant_on_table
(driver, Fi->table, DB_PRIV_SELECT, DB_GROUP | DB_PUBLIC) != DB_OK)
G_fatal_error(_("Cannot grant privileges on table <%s>"), Fi->table);
db_begin_transaction(driver);
Vect_copy_head_data(&In, &Out);
Vect_hist_copy(&In, &Out);
Vect_hist_command(&Out);
G_message(_("Tracing paths from 'from' features ..."));
from_nr = 0;
for (i = 1; i <= nlines; i++) {
if (varrayf->c[i]) {
int type = Vect_read_line(&In, Points, Cats, i);
int node, tcat, cat;
double cost;
dglInt32_t *vertex, vertex_id;
if (!Vect_cat_get(Cats, flayer, &cat))
continue;
if (type & GV_POINTS) {
node = Vect_find_node(&In, Points->x[0], Points->y[0], Points->z[0], 0, 0);
}
else {
Vect_get_line_nodes(&In, i, &node, NULL);
}
if (node < 1)
continue;
if (dst[node] < 0) {
/* unreachable */
from_nr++;
continue;
}
cost = dst[node] / (double)In.dgraph.cost_multip;
vertex = dglGetNode(graph, node);
vertex_id = node;
slist->n_values = 0;
while (nxt[vertex_id] != NULL) {
int edge_id;
edge_id = (int) dglEdgeGet_Id(graph, nxt[vertex_id]);
if (segments) {
Vect_cat_set(on_path[abs(edge_id)], 1, cat);
if (edge_id < 0) {
segdir[abs(edge_id)] = 1;
}
}
else
G_ilist_add(slist, edge_id);
vertex = dglEdgeGet_Tail(graph, nxt[vertex_id]);
vertex_id = dglNodeGet_Id(graph, vertex);
}
G_debug(3, "read line %d, vertex id %d", nodes_to_features[vertex_id], (int)vertex_id);
Vect_read_line(&In, NULL, TCats, nodes_to_features[vertex_id]);
if (!Vect_cat_get(TCats, tlayer, &tcat))
continue;
Vect_write_line(&Out, type, Points, Cats);
sprintf(buf, "insert into %s values (%d, %d, %f)", Fi->table, cat,
tcat, cost);
db_set_string(&sql, buf);
G_debug(3, "%s", db_get_string(&sql));
if (db_execute_immediate(driver, &sql) != DB_OK) {
G_fatal_error(_("Cannot insert new record: %s"),
db_get_string(&sql));
};
if (!segments) {
Vect_reset_line(PPoints);
for (j = 0; j < slist->n_values; j++) {
Vect_read_line(&In, Points, NULL, abs(slist->value[j]));
if (slist->value[j] > 0)
Vect_append_points(PPoints, Points,
GV_FORWARD);
else
Vect_append_points(PPoints, Points,
GV_BACKWARD);
PPoints->n_points--;
}
PPoints->n_points++;
Vect_reset_cats(Cats);
Vect_cat_set(Cats, 1, cat);
Vect_write_line(&Out, GV_LINE, PPoints, Cats);
}
}
}
if (segments) {
for (i = 1; i <= nlines; i++) {
if (on_path[i]->n_cats > 0) {
int type;
if (segdir[i]) {
type = Vect_read_line(&In, PPoints, NULL, i);
Vect_reset_line(Points);
Vect_append_points(Points, PPoints, GV_BACKWARD);
}
else
type = Vect_read_line(&In, Points, NULL, i);
Vect_write_line(&Out, type, Points, on_path[i]);
}
}
}
db_commit_transaction(driver);
db_close_database_shutdown_driver(driver);
Vect_build(&Out);
Vect_close(&In);
Vect_close(&Out);
for (i = 1; i <= nlines; i++)
Vect_destroy_cats_struct(on_path[i]);
G_free(on_path);
G_free(nodes_to_features);
G_free(dst);
G_free(nxt);
G_free(segdir);
if (from_nr)
G_warning(n_("%d 'from' feature was not reachable",
"%d 'from' features were not reachable",
from_nr), from_nr);
exit(EXIT_SUCCESS);
}
int main(int argc, char **argv)
{
int field, type, vertex_type;
double dmax;
struct Option *in_opt, *out_opt, *type_opt, *dmax_opt, *lfield_opt;
struct Flag *inter_flag, *vertex_flag, *table_flag, *node_flag;
struct GModule *module;
char *mapset;
struct Map_info In, Out;
struct line_cats *LCats;
struct line_pnts *LPoints;
char buf[2000];
G_gisinit(argv[0]);
module = G_define_module();
module->keywords = _("vector, geometry");
module->description =
_("Create points along input lines in new vector with 2 layers.");
in_opt = G_define_standard_option(G_OPT_V_INPUT);
in_opt->description = _("Input vector map containing lines");
out_opt = G_define_standard_option(G_OPT_V_OUTPUT);
out_opt->description =
_("Output vector map where points will be written");
type_opt = G_define_standard_option(G_OPT_V_TYPE);
type_opt->answer = "point,line,boundary,centroid";
lfield_opt = G_define_standard_option(G_OPT_V_FIELD);
lfield_opt->key = "llayer";
lfield_opt->answer = "1";
lfield_opt->description = "Line layer";
node_flag = G_define_flag();
node_flag->key = 'n';
node_flag->description = _("Write line nodes");
vertex_flag = G_define_flag();
vertex_flag->key = 'v';
vertex_flag->description = _("Write line vertices");
inter_flag = G_define_flag();
inter_flag->key = 'i';
inter_flag->description = _("Interpolate points between line vertices");
dmax_opt = G_define_option();
dmax_opt->key = "dmax";
dmax_opt->type = TYPE_DOUBLE;
dmax_opt->required = NO;
dmax_opt->answer = "100";
dmax_opt->description = _("Maximum distance between points in map units");
table_flag = G_define_flag();
table_flag->key = 't';
table_flag->description = _("Do not create attribute table");
if (G_parser(argc, argv))
exit(EXIT_FAILURE);
LCats = Vect_new_cats_struct();
PCats = Vect_new_cats_struct();
LPoints = Vect_new_line_struct();
PPoints = Vect_new_line_struct();
db_init_string(&stmt);
field = atoi(lfield_opt->answer);
type = Vect_option_to_types(type_opt);
dmax = atof(dmax_opt->answer);
if (node_flag->answer && vertex_flag->answer)
G_fatal_error(_("Use either -n or -v flag, not both"));
if (node_flag->answer)
vertex_type = GV_NODE;
else if (vertex_flag->answer)
vertex_type = GV_VERTEX;
else
vertex_type = 0;
Vect_check_input_output_name(in_opt->answer, out_opt->answer,
GV_FATAL_EXIT);
/* Open input lines */
mapset = G_find_vector2(in_opt->answer, NULL);
if (mapset == NULL)
G_fatal_error(_("Vector map <%s> not found"), in_opt->answer);
Vect_set_open_level(2);
Vect_open_old(&In, in_opt->answer, mapset);
/* Open output segments */
Vect_open_new(&Out, out_opt->answer, Vect_is_3d(&In));
Vect_copy_head_data(&In, &Out);
Vect_hist_copy(&In, &Out);
Vect_hist_command(&Out);
/* Table */
if (!table_flag->answer) {
struct field_info *Fin;
/* copy input table */
Fin = Vect_get_field(&In, field);
if (Fin) { /* table defined */
int ret;
Fi = Vect_default_field_info(&Out, 1, NULL, GV_MTABLE);
Vect_map_add_dblink(&Out, 1, NULL, Fi->table, Fin->key,
Fi->database, Fi->driver);
ret = db_copy_table(Fin->driver, Fin->database, Fin->table,
Fi->driver, Vect_subst_var(Fi->database,
&Out), Fi->table);
if (ret == DB_FAILED) {
G_fatal_error(_("Unable to copy table <%s>"),
Fin->table);
}
}
Fi = Vect_default_field_info(&Out, 2, NULL, GV_MTABLE);
Vect_map_add_dblink(&Out, 2, NULL, Fi->table, "cat", Fi->database,
Fi->driver);
/* Open driver */
driver = db_start_driver_open_database(Fi->driver, Fi->database);
if (driver == NULL)
G_fatal_error(_("Unable to open database <%s> by driver <%s>"),
Fi->database, Fi->driver);
sprintf(buf,
"create table %s ( cat int, lcat int, along double precision )",
Fi->table);
db_append_string(&stmt, buf);
if (db_execute_immediate(driver, &stmt) != DB_OK) {
db_close_database_shutdown_driver(driver);
G_fatal_error(_("Unable to create table: '%s'"),
db_get_string(&stmt));
}
if (db_create_index2(driver, Fi->table, "cat") != DB_OK)
G_warning(_("Unable to create index for table <%s>, key <%s>"),
Fi->table, "cat");
if (db_grant_on_table
(driver, Fi->table, DB_PRIV_SELECT,
DB_GROUP | DB_PUBLIC) != DB_OK)
G_fatal_error(_("Unable to grant privileges on table <%s>"),
Fi->table);
db_begin_transaction(driver);
}
point_cat = 1;
if (type & (GV_POINTS | GV_LINES)) {
int line, nlines;
nlines = Vect_get_num_lines(&In);
for (line = 1; line <= nlines; line++) {
int ltype, cat;
G_debug(3, "line = %d", line);
ltype = Vect_read_line(&In, LPoints, LCats, line);
if (!(ltype & type))
continue;
Vect_cat_get(LCats, field, &cat);
if (LPoints->n_points <= 1) {
write_point(&Out, LPoints->x[0], LPoints->y[0], LPoints->z[0],
cat, 0.0, table_flag->answer);
}
else { /* lines */
write_line(&Out, LPoints, cat, vertex_type,
inter_flag->answer, dmax, table_flag->answer);
}
G_percent(line, nlines, 2);
}
}
if (type == GV_AREA) {
int area, nareas, centroid, cat;
nareas = Vect_get_num_areas(&In);
for (area = 1; area <= nareas; area++) {
int i, isle, nisles;
centroid = Vect_get_area_centroid(&In, area);
cat = -1;
if (centroid > 0) {
Vect_read_line(&In, NULL, LCats, centroid);
Vect_cat_get(LCats, field, &cat);
}
Vect_get_area_points(&In, area, LPoints);
write_line(&Out, LPoints, cat, vertex_type, inter_flag->answer,
dmax, table_flag->answer);
nisles = Vect_get_area_num_isles(&In, area);
for (i = 0; i < nisles; i++) {
isle = Vect_get_area_isle(&In, area, i);
Vect_get_isle_points(&In, isle, LPoints);
write_line(&Out, LPoints, cat, vertex_type,
inter_flag->answer, dmax, table_flag->answer);
}
G_percent(area, nareas, 2);
}
}
if (!table_flag->answer) {
db_commit_transaction(driver);
db_close_database_shutdown_driver(driver);
}
Vect_build(&Out);
/* Free, close ... */
Vect_close(&In);
Vect_close(&Out);
G_done_msg(_("%d points written to output vector map"), point_cat - 1);
exit(EXIT_SUCCESS);
}
int main(int argc, char **argv)
{
int i;
int **cats, *ncats, nfields, *fields;
struct Flag *line_flag;
/* struct Flag *all_flag; */
struct Option *in_opt, *out_opt;
struct Flag *table_flag;
struct GModule *module;
struct line_pnts *Points;
struct line_cats *Cats;
int node, nnodes;
COOR *coor;
int ncoor, acoor;
int line, nlines, type, ctype, area, nareas;
int err_boundaries, err_centr_out, err_centr_dupl, err_nocentr;
G_gisinit(argv[0]);
module = G_define_module();
G_add_keyword(_("vector"));
G_add_keyword(_("geometry"));
G_add_keyword(_("triangulation"));
module->description = _("Creates a Voronoi diagram from an input vector "
"map containing points or centroids.");
in_opt = G_define_standard_option(G_OPT_V_INPUT);
out_opt = G_define_standard_option(G_OPT_V_OUTPUT);
/*
all_flag = G_define_flag ();
all_flag->key = 'a';
all_flag->description = _("Use all points (do not limit to current region)");
*/
line_flag = G_define_flag();
line_flag->key = 'l';
line_flag->description =
_("Output tessellation as a graph (lines), not areas");
table_flag = G_define_flag();
table_flag->key = 't';
table_flag->description = _("Do not create attribute table");
if (G_parser(argc, argv))
exit(EXIT_FAILURE);
if (line_flag->answer)
Type = GV_LINE;
else
Type = GV_BOUNDARY;
All = 0;
Points = Vect_new_line_struct();
Cats = Vect_new_cats_struct();
/* open files */
Vect_set_open_level(2);
Vect_open_old(&In, in_opt->answer, "");
if (Vect_open_new(&Out, out_opt->answer, 0) < 0)
G_fatal_error(_("Unable to create vector map <%s>"), out_opt->answer);
Vect_hist_copy(&In, &Out);
Vect_hist_command(&Out);
/* initialize working region */
G_get_window(&Window);
Vect_region_box(&Window, &Box);
Box.T = 0.5;
Box.B = -0.5;
freeinit(&sfl, sizeof(struct Site));
G_message(_("Reading sites..."));
readsites();
siteidx = 0;
geominit();
triangulate = 0;
plot = 0;
debug = 0;
G_message(_("Voronoi triangulation..."));
voronoi(triangulate, nextone);
/* Close free ends by current region */
Vect_build_partial(&Out, GV_BUILD_BASE);
ncoor = 0;
acoor = 100;
coor = (COOR *) G_malloc(sizeof(COOR) * acoor);
nnodes = Vect_get_num_nodes(&Out);
for (node = 1; node <= nnodes; node++) {
double x, y;
if (Vect_get_node_n_lines(&Out, node) < 2) { /* add coordinates */
Vect_get_node_coor(&Out, node, &x, &y, NULL);
if (ncoor == acoor - 5) { /* always space for 5 region corners */
acoor += 100;
coor = (COOR *) G_realloc(coor, sizeof(COOR) * acoor);
}
coor[ncoor].x = x;
coor[ncoor].y = y;
ncoor++;
}
}
/* Add region corners */
coor[ncoor].x = Box.W;
coor[ncoor].y = Box.S;
ncoor++;
coor[ncoor].x = Box.E;
coor[ncoor].y = Box.S;
ncoor++;
coor[ncoor].x = Box.E;
coor[ncoor].y = Box.N;
ncoor++;
coor[ncoor].x = Box.W;
coor[ncoor].y = Box.N;
ncoor++;
/* Sort */
qsort(coor, ncoor, sizeof(COOR), (void *)cmp);
/* add last (first corner) */
coor[ncoor].x = Box.W;
coor[ncoor].y = Box.S;
ncoor++;
for (i = 1; i < ncoor; i++) {
if (coor[i].x == coor[i - 1].x && coor[i].y == coor[i - 1].y)
continue; /* duplicate */
Vect_reset_line(Points);
Vect_append_point(Points, coor[i].x, coor[i].y, 0.0);
Vect_append_point(Points, coor[i - 1].x, coor[i - 1].y, 0.0);
Vect_write_line(&Out, Type, Points, Cats);
}
G_free(coor);
/* Copy input points as centroids */
nfields = Vect_cidx_get_num_fields(&In);
cats = (int **)G_malloc(nfields * sizeof(int *));
ncats = (int *)G_malloc(nfields * sizeof(int));
fields = (int *)G_malloc(nfields * sizeof(int));
for (i = 0; i < nfields; i++) {
ncats[i] = 0;
cats[i] =
(int *)G_malloc(Vect_cidx_get_num_cats_by_index(&In, i) *
sizeof(int));
fields[i] = Vect_cidx_get_field_number(&In, i);
}
if (line_flag->answer)
ctype = GV_POINT;
else
ctype = GV_CENTROID;
nlines = Vect_get_num_lines(&In);
G_message(_("Writing sites to output..."));
for (line = 1; line <= nlines; line++) {
G_percent(line, nlines, 2);
type = Vect_read_line(&In, Points, Cats, line);
if (!(type & GV_POINTS))
continue;
if (!Vect_point_in_box(Points->x[0], Points->y[0], 0.0, &Box))
continue;
Vect_write_line(&Out, ctype, Points, Cats);
for (i = 0; i < Cats->n_cats; i++) {
int f, j;
f = -1;
for (j = 0; j < nfields; j++) { /* find field */
if (fields[j] == Cats->field[i]) {
f = j;
break;
}
}
if (f > -1) {
cats[f][ncats[f]] = Cats->cat[i];
ncats[f]++;
}
}
}
/* Copy tables */
if (!(table_flag->answer)) {
int ttype, ntabs = 0;
struct field_info *IFi, *OFi;
/* Number of output tabs */
for (i = 0; i < Vect_get_num_dblinks(&In); i++) {
int f, j;
IFi = Vect_get_dblink(&In, i);
f = -1;
for (j = 0; j < nfields; j++) { /* find field */
if (fields[j] == IFi->number) {
f = j;
break;
}
}
if (f > -1) {
if (ncats[f] > 0)
ntabs++;
}
}
if (ntabs > 1)
ttype = GV_MTABLE;
else
ttype = GV_1TABLE;
for (i = 0; i < nfields; i++) {
int ret;
if (fields[i] == 0)
continue;
G_message(_("Layer %d"), fields[i]);
/* Make a list of categories */
IFi = Vect_get_field(&In, fields[i]);
if (!IFi) { /* no table */
G_message(_("No table"));
continue;
}
OFi =
Vect_default_field_info(&Out, IFi->number, IFi->name, ttype);
ret =
db_copy_table_by_ints(IFi->driver, IFi->database, IFi->table,
OFi->driver,
Vect_subst_var(OFi->database, &Out),
OFi->table, IFi->key, cats[i],
ncats[i]);
if (ret == DB_FAILED) {
G_warning(_("Cannot copy table"));
}
else {
Vect_map_add_dblink(&Out, OFi->number, OFi->name, OFi->table,
IFi->key, OFi->database, OFi->driver);
}
}
}
Vect_close(&In);
/* cleaning part 1: count errors */
Vect_build_partial(&Out, GV_BUILD_CENTROIDS);
err_boundaries = err_centr_out = err_centr_dupl = err_nocentr = 0;
nlines = Vect_get_num_lines(&Out);
for (line = 1; line <= nlines; line++) {
if (!Vect_line_alive(&Out, line))
continue;
type = Vect_get_line_type(&Out, line);
if (type == GV_BOUNDARY) {
int left, right;
Vect_get_line_areas(&Out, line, &left, &right);
if (left == 0 || right == 0) {
G_debug(3, "line = %d left = %d right = %d", line,
left, right);
err_boundaries++;
}
}
if (type == GV_CENTROID) {
area = Vect_get_centroid_area(&Out, line);
if (area == 0)
err_centr_out++;
else if (area < 0)
err_centr_dupl++;
}
}
err_nocentr = 0;
nareas = Vect_get_num_areas(&Out);
for (area = 1; area <= nareas; area++) {
if (!Vect_area_alive(&Out, area))
continue;
line = Vect_get_area_centroid(&Out, area);
if (line == 0)
err_nocentr++;
}
/* cleaning part 2: snap */
if (err_nocentr || err_centr_dupl || err_centr_out) {
int nmod;
G_important_message(_("Output needs topological cleaning"));
Vect_snap_lines(&Out, GV_BOUNDARY, 1e-7, NULL);
do {
Vect_break_lines(&Out, GV_BOUNDARY, NULL);
Vect_remove_duplicates(&Out, GV_BOUNDARY, NULL);
nmod =
Vect_clean_small_angles_at_nodes(&Out, GV_BOUNDARY, NULL);
} while (nmod > 0);
err_boundaries = 0;
nlines = Vect_get_num_lines(&Out);
for (line = 1; line <= nlines; line++) {
if (!Vect_line_alive(&Out, line))
continue;
type = Vect_get_line_type(&Out, line);
if (type == GV_BOUNDARY) {
int left, right;
Vect_get_line_areas(&Out, line, &left, &right);
if (left == 0 || right == 0) {
G_debug(3, "line = %d left = %d right = %d", line,
left, right);
err_boundaries++;
}
}
}
}
/* cleaning part 3: remove remaining incorrect boundaries */
if (err_boundaries) {
G_important_message(_("Removing incorrect boundaries from output"));
nlines = Vect_get_num_lines(&Out);
for (line = 1; line <= nlines; line++) {
if (!Vect_line_alive(&Out, line))
continue;
type = Vect_get_line_type(&Out, line);
if (type == GV_BOUNDARY) {
int left, right;
Vect_get_line_areas(&Out, line, &left, &right);
/* &&, not ||, no typo */
if (left == 0 && right == 0) {
G_debug(3, "line = %d left = %d right = %d", line,
left, right);
Vect_delete_line(&Out, line);
}
}
}
}
/* build clean topology */
Vect_build_partial(&Out, GV_BUILD_NONE);
Vect_build(&Out);
Vect_close(&Out);
G_done_msg(" ");
exit(EXIT_SUCCESS);
}
int main(int argc, char *argv[])
{
int npmin;
int ii;
double x_orig, y_orig, dnorm, deltx, delty, xm, ym;
char dmaxchar[200];
char dminchar[200];
struct quaddata *data;
struct multfunc *functions;
struct multtree *tree;
int open_check, with_z;
char buf[1024];
struct GModule *module;
struct
{
struct Option *input, *field, *zcol, *wheresql, *scol, *elev, *slope,
*aspect, *pcurv, *tcurv, *mcurv, *treefile, *overfile, *maskmap,
*dmin, *dmax, *zmult, *fi, *rsm, *segmax, *npmin, *cvdev, *devi,
*theta, *scalex;
} parm;
struct
{
struct Flag *deriv, *cprght, *cv;
} flag;
G_gisinit(argv[0]);
module = G_define_module();
G_add_keyword(_("vector"));
G_add_keyword(_("surface"));
G_add_keyword(_("interpolation"));
G_add_keyword(_("3D"));
module->label = _("Performs surface interpolation from vector points map by splines.");
module->description =
_("Spatial approximation and topographic analysis from given "
"point or isoline data in vector format to floating point "
"raster format using regularized spline with tension.");
flag.cv = G_define_flag();
flag.cv->key = 'c';
flag.cv->description =
_("Perform cross-validation procedure without raster approximation");
flag.cv->guisection = _("Parameters");
flag.cprght = G_define_flag();
flag.cprght->key = 't';
flag.cprght->description = _("Use scale dependent tension");
flag.cprght->guisection = _("Parameters");
flag.deriv = G_define_flag();
flag.deriv->key = 'd';
flag.deriv->description =
_("Output partial derivatives instead of topographic parameters");
flag.deriv->guisection = _("Outputs");
parm.input = G_define_standard_option(G_OPT_V_INPUT);
parm.field = G_define_standard_option(G_OPT_V_FIELD);
parm.field->answer = "1";
parm.field->guisection = _("Selection");
parm.zcol = G_define_standard_option(G_OPT_DB_COLUMN);
parm.zcol->key = "zcolumn";
parm.zcol->required = NO;
parm.zcol->label =
_("Name of the attribute column with values to be used for approximation");
parm.zcol->description = _("If not given and input is 2D vector map then category values are used. "
"If input is 3D vector map then z-coordinates are used.");
parm.zcol->guisection = _("Parameters");
parm.wheresql = G_define_standard_option(G_OPT_DB_WHERE);
parm.wheresql->guisection = _("Selection");
parm.elev = G_define_standard_option(G_OPT_R_OUTPUT);
parm.elev->key = "elevation";
parm.elev->required = NO;
parm.elev->description = _("Name for output surface elevation raster map");
parm.elev->guisection = _("Outputs");
parm.slope = G_define_standard_option(G_OPT_R_OUTPUT);
parm.slope->key = "slope";
parm.slope->required = NO;
parm.slope->description = _("Name for output slope raster map");
parm.slope->guisection = _("Outputs");
parm.aspect = G_define_standard_option(G_OPT_R_OUTPUT);
parm.aspect->key = "aspect";
parm.aspect->required = NO;
parm.aspect->description = _("Name for output aspect raster map");
parm.aspect->guisection = _("Outputs");
parm.pcurv = G_define_standard_option(G_OPT_R_OUTPUT);
parm.pcurv->key = "pcurvature";
parm.pcurv->required = NO;
parm.pcurv->description = _("Name for output profile curvature raster map");
parm.pcurv->guisection = _("Outputs");
parm.tcurv = G_define_standard_option(G_OPT_R_OUTPUT);
parm.tcurv->key = "tcurvature";
parm.tcurv->required = NO;
parm.tcurv->description = _("Name for output tangential curvature raster map");
parm.tcurv->guisection = _("Outputs");
parm.mcurv = G_define_standard_option(G_OPT_R_OUTPUT);
parm.mcurv->key = "mcurvature";
parm.mcurv->required = NO;
parm.mcurv->description = _("Name for output mean curvature raster map");
parm.mcurv->guisection = _("Outputs");
parm.devi = G_define_standard_option(G_OPT_V_OUTPUT);
parm.devi->key = "deviations";
parm.devi->required = NO;
parm.devi->description = _("Name for output deviations vector point map");
parm.devi->guisection = _("Outputs");
parm.cvdev = G_define_standard_option(G_OPT_V_OUTPUT);
parm.cvdev->key = "cvdev";
parm.cvdev->required = NO;
parm.cvdev->description =
_("Name for output cross-validation errors vector point map");
parm.cvdev->guisection = _("Outputs");
parm.treefile = G_define_standard_option(G_OPT_V_OUTPUT);
parm.treefile->key = "treeseg";
parm.treefile->required = NO;
parm.treefile->description =
_("Name for output vector map showing quadtree segmentation");
parm.treefile->guisection = _("Outputs");
parm.overfile = G_define_standard_option(G_OPT_V_OUTPUT);
parm.overfile->key = "overwin";
parm.overfile->required = NO;
parm.overfile->description =
_("Name for output vector map showing overlapping windows");
parm.overfile->guisection = _("Outputs");
parm.maskmap = G_define_standard_option(G_OPT_R_INPUT);
parm.maskmap->key = "mask";
parm.maskmap->required = NO;
parm.maskmap->description = _("Name of raster map used as mask");
parm.maskmap->guisection = _("Parameters");
parm.fi = G_define_option();
parm.fi->key = "tension";
parm.fi->type = TYPE_DOUBLE;
parm.fi->answer = TENSION;
parm.fi->required = NO;
parm.fi->description = _("Tension parameter");
parm.fi->guisection = _("Parameters");
parm.rsm = G_define_option();
parm.rsm->key = "smooth";
parm.rsm->type = TYPE_DOUBLE;
parm.rsm->required = NO;
parm.rsm->description = _("Smoothing parameter");
parm.rsm->guisection = _("Parameters");
parm.scol = G_define_option();
parm.scol->key = "smooth_column";
parm.scol->type = TYPE_STRING;
parm.scol->required = NO;
parm.scol->description =
_("Name of the attribute column with smoothing parameters");
parm.scol->guisection = _("Parameters");
parm.segmax = G_define_option();
parm.segmax->key = "segmax";
parm.segmax->type = TYPE_INTEGER;
parm.segmax->answer = MAXSEGM;
parm.segmax->required = NO;
parm.segmax->description = _("Maximum number of points in a segment");
parm.segmax->guisection = _("Parameters");
parm.npmin = G_define_option();
parm.npmin->key = "npmin";
parm.npmin->type = TYPE_INTEGER;
parm.npmin->answer = MINPOINTS;
parm.npmin->required = NO;
parm.npmin->description =
_("Minimum number of points for approximation in a segment (>segmax)");
parm.npmin->guisection = _("Parameters");
parm.dmin = G_define_option();
parm.dmin->key = "dmin";
parm.dmin->type = TYPE_DOUBLE;
parm.dmin->required = NO;
parm.dmin->description =
_("Minimum distance between points (to remove almost identical points)");
parm.dmin->guisection = _("Parameters");
parm.dmax = G_define_option();
parm.dmax->key = "dmax";
parm.dmax->type = TYPE_DOUBLE;
parm.dmax->required = NO;
parm.dmax->description =
_("Maximum distance between points on isoline (to insert additional points)");
parm.dmax->guisection = _("Parameters");
parm.zmult = G_define_option();
parm.zmult->key = "zscale";
parm.zmult->type = TYPE_DOUBLE;
parm.zmult->answer = ZMULT;
parm.zmult->required = NO;
parm.zmult->description =
_("Conversion factor for values used for approximation");
parm.zmult->guisection = _("Parameters");
parm.theta = G_define_option();
parm.theta->key = "theta";
parm.theta->type = TYPE_DOUBLE;
parm.theta->required = NO;
parm.theta->description =
_("Anisotropy angle (in degrees counterclockwise from East)");
parm.theta->guisection = _("Parameters");
parm.scalex = G_define_option();
parm.scalex->key = "scalex";
parm.scalex->type = TYPE_DOUBLE;
parm.scalex->required = NO;
parm.scalex->description = _("Anisotropy scaling factor");
parm.scalex->guisection = _("Parameters");
if (G_parser(argc, argv))
exit(EXIT_FAILURE);
G_get_set_window(&cellhd);
ew_res = cellhd.ew_res;
ns_res = cellhd.ns_res;
n_cols = cellhd.cols;
n_rows = cellhd.rows;
x_orig = cellhd.west;
y_orig = cellhd.south;
xm = cellhd.east;
ym = cellhd.north;
if (ew_res < ns_res)
dmin = ew_res / 2;
else
dmin = ns_res / 2;
disk = n_rows * n_cols * sizeof(int);
sdisk = n_rows * n_cols * sizeof(short int);
sprintf(dmaxchar, "%f", dmin * 5);
sprintf(dminchar, "%f", dmin);
if (!parm.dmin->answer) {
parm.dmin->answer = G_store(dminchar);
parm.dmin->answers = (char **) G_malloc(2 * sizeof(char *));
parm.dmin->answers[0] = G_store(dminchar);
parm.dmin->answers[1] = NULL;
}
if (!parm.dmax->answer) {
parm.dmax->answer = G_store(dmaxchar);
parm.dmax->answers = (char **) G_malloc(2 * sizeof(char *));
parm.dmax->answers[0] = G_store(dmaxchar);
parm.dmax->answers[1] = NULL;
}
input = parm.input->answer;
zcol = parm.zcol->answer;
scol = parm.scol->answer;
wheresql = parm.wheresql->answer;
maskmap = parm.maskmap->answer;
elev = parm.elev->answer;
devi = parm.devi->answer;
cvdev = parm.cvdev->answer;
slope = parm.slope->answer;
aspect = parm.aspect->answer;
pcurv = parm.pcurv->answer;
tcurv = parm.tcurv->answer;
mcurv = parm.mcurv->answer;
treefile = parm.treefile->answer;
overfile = parm.overfile->answer;
if (devi) {
if (Vect_legal_filename(devi) == -1)
G_fatal_error(_("Output vector map name <%s> is not valid map name"),
devi);
}
if (cvdev) {
if (Vect_legal_filename(cvdev) == -1)
G_fatal_error(_("Output vector map name <%s> is not valid map name"),
cvdev);
}
if (treefile) {
if (Vect_legal_filename(treefile) == -1)
G_fatal_error(_("Output vector map name <%s> is not valid map name"),
treefile);
}
if (overfile) {
if (Vect_legal_filename(overfile) == -1)
G_fatal_error(_("Output vector map name <%s> is not valid map name"),
overfile);
}
/* if (treefile)
Vect_check_input_output_name(input, treefile, G_FATAL_EXIT);
if (overfile)
Vect_check_input_output_name(input, overfile, G_FATAL_EXIT);
*/
if ((elev == NULL) && (pcurv == NULL) && (tcurv == NULL)
&& (mcurv == NULL)
&& (slope == NULL) && (aspect == NULL) && (devi == NULL)
&& (cvdev == NULL))
G_warning(_("You are not outputting any raster or vector maps"));
cond2 = ((pcurv != NULL) || (tcurv != NULL) || (mcurv != NULL));
cond1 = ((slope != NULL) || (aspect != NULL) || cond2);
deriv = flag.deriv->answer;
dtens = flag.cprght->answer;
cv = flag.cv->answer;
if ((cv && cvdev == NULL) || (!(cv) && cvdev != NULL))
G_fatal_error(_("Both cross-validation options (-c flag and cvdev vector output) must be specified"));
if ((elev != NULL || cond1 || cond2 || devi != NULL) && cv)
G_fatal_error(_("The cross-validation cannot be computed simultaneously with output raster or devi file"));
ertre = 0.1;
sscanf(parm.dmax->answer, "%lf", &dmax);
sscanf(parm.dmin->answer, "%lf", &dmin);
sscanf(parm.fi->answer, "%lf", &fi);
sscanf(parm.segmax->answer, "%d", &KMAX);
sscanf(parm.npmin->answer, "%d", &npmin);
sscanf(parm.zmult->answer, "%lf", &zmult);
/* if (fi=0.000000) G_fatal_error("Tension must be > 0.000000") */
if (parm.theta->answer)
sscanf(parm.theta->answer, "%lf", &theta);
if (parm.scalex->answer) {
sscanf(parm.scalex->answer, "%lf", &scalex);
if (!parm.theta->answer)
G_fatal_error(_("Using anisotropy - both theta and scalex have to be specified"));
}
if (parm.rsm->answer) {
sscanf(parm.rsm->answer, "%lf", &rsm);
if (rsm < 0.0)
G_fatal_error("Smoothing must be a positive value");
if (scol != NULL)
G_warning(_("Both smatt and smooth options specified - using constant"));
}
else {
sscanf(SMOOTH, "%lf", &rsm);
if (scol != NULL)
rsm = -1; /* used in InterpLib to indicate variable smoothing */
}
if (npmin > MAXPOINTS - 50) {
G_warning(_("The computation will last too long - lower npmin is suggested"));
KMAX2 = 2 * npmin; /* was: KMAX2 = npmin + 50; */
}
else
KMAX2 = 2 * npmin; /* was: KMAX2 = MAXPOINTS; fixed by JH in 12/01 */
/* handling of KMAX2 in GRASS4 v.surf.rst
if (npmin > MAXPOINTS - 50)
KMAX2 = npmin + 50;
else
KMAX2 = MAXPOINTS;
*/
dmin = dmin * dmin;
KMIN = npmin;
az = G_alloc_vector(n_cols + 1);
if (!az) {
G_fatal_error(_("Not enough memory for %s"), "az");
}
if (cond1) {
adx = G_alloc_vector(n_cols + 1);
if (!adx) {
G_fatal_error(_("Not enough memory for %s"), "adx");
}
ady = G_alloc_vector(n_cols + 1);
if (!ady) {
G_fatal_error(_("Not enough memory for %s"), "ady");
}
if (cond2) {
adxx = G_alloc_vector(n_cols + 1);
if (!adxx) {
G_fatal_error(_("Not enough memory for %s"), "adxx");
}
adyy = G_alloc_vector(n_cols + 1);
if (!adyy) {
G_fatal_error(_("Not enough memory for %s"), "adyy");
}
adxy = G_alloc_vector(n_cols + 1);
if (!adxy) {
G_fatal_error(_("Not enough memory for %s"), "adxy");
}
}
}
if ((data =
quad_data_new(x_orig, y_orig, xm, ym, n_rows, n_cols, 0,
KMAX)) == NULL)
G_fatal_error(_("Unable to create %s"), "quaddata");
if ((functions =
MT_functions_new(quad_compare, quad_divide_data, quad_add_data,
quad_intersect, quad_division_check,
quad_get_points)) == NULL)
G_fatal_error(_("Unable to create %s"), "quadfunc");
if ((tree = MT_tree_new(data, NULL, NULL, 0)) == NULL)
G_fatal_error(_("Unable to create %s"), "tree");
root = tree;
if ((info = MT_tree_info_new(root, functions, dmin, KMAX)) == NULL)
G_fatal_error(_("Unable to create %s"), "tree info");
open_check = Vect_open_old2(&Map, input, "", parm.field->answer);
if (open_check < 1)
G_fatal_error(_("Unable to open vector map <%s>"), input);
/* if (open_check < 2)
G_fatal_error(_("You first need to run v.build on vector map <%s>"), input);
*/
/* get value used for approximation */
with_z = !parm.zcol->answer && Vect_is_3d(&Map);
field = Vect_get_field_number(&Map, parm.field->answer);
if (!with_z && field < 1)
G_fatal_error(_("Layer <%s> not found"), parm.field->answer);
if (Vect_is_3d(&Map)) {
if (!with_z)
G_verbose_message(_("Input is 3D: using attribute values instead of z-coordinates for approximation"));
else
G_verbose_message(_("Input is 3D: using z-coordinates for approximation"));
}
else { /* 2D */
if (parm.zcol->answer)
G_verbose_message(_("Input is 2D: using attribute values for approximation"));
else
G_verbose_message(_("Input is 2D: using category values for approximation"));
}
/* we can't read the input file's timestamp as they don't exist in */
/* the new vector format. Even so, a TimeStamp structure is needed */
/* for IL_init_params_2d(), so we set it to NULL. */
/* If anyone is ever motivated to add it, the Plus_head struct has */
/* 'long coor_mtime' and dig_head has 'char *date; char *source_date;' */
/* which could be read in. */
if (devi != NULL || cvdev != NULL) {
Pnts = Vect_new_line_struct();
Cats2 = Vect_new_cats_struct();
db_init_string(&sql2);
if (devi != NULL) {
if (Vect_open_new(&Map2, devi, 1) < 0)
G_fatal_error(_("Unable to create vector map <%s>"), devi);
} else {
if (Vect_open_new(&Map2, cvdev, 1) < 0)
G_fatal_error(_("Unable to create vector map <%s>"), cvdev);
}
Vect_hist_command(&Map2);
ff = Vect_default_field_info(&Map2, 1, NULL, GV_1TABLE);
Vect_map_add_dblink(&Map2, 1, NULL, ff->table, GV_KEY_COLUMN, ff->database,
ff->driver);
/* Create new table */
db_zero_string(&sql2);
sprintf(buf, "create table %s ( ", ff->table);
db_append_string(&sql2, buf);
db_append_string(&sql2, "cat integer");
db_append_string(&sql2, ", flt1 double precision");
db_append_string(&sql2, ")");
G_debug(1, "%s", db_get_string(&sql2));
driver2 = db_start_driver_open_database(ff->driver, ff->database);
if (driver2 == NULL)
G_fatal_error(_("Unable to open database <%s> by driver <%s>"),
ff->database, ff->driver);
db_set_error_handler_driver(driver2);
if (db_execute_immediate(driver2, &sql2) != DB_OK) {
G_fatal_error(_("Unable to create table '%s'"),
db_get_string(&sql2));
}
db_begin_transaction(driver2);
count = 1;
}
ertot = 0.;
create_temp_files();
IL_init_params_2d(¶ms, NULL, 1, 1, zmult, KMIN, KMAX, maskmap, n_rows,
n_cols, az, adx, ady, adxx, adyy, adxy, fi, KMAX2,
SCIK1, SCIK2, SCIK3, rsm, elev, slope, aspect, pcurv,
tcurv, mcurv, dmin, x_orig, y_orig, deriv, theta,
scalex, Tmp_fd_z, Tmp_fd_dx, Tmp_fd_dy, Tmp_fd_xx,
Tmp_fd_yy, Tmp_fd_xy, devi, NULL, cv,
parm.wheresql->answer);
IL_init_func_2d(¶ms, IL_grid_calc_2d, IL_matrix_create,
IL_check_at_points_2d, IL_secpar_loop_2d, IL_crst,
IL_crstg, IL_write_temp_2d);
totsegm =
IL_vector_input_data_2d(¶ms, &Map, with_z ? 0 : field,
zcol, scol,
info, &xmin, &xmax,
&ymin, &ymax, &zmin, &zmax, &NPOINT, &dmax);
if (totsegm <= 0) {
clean();
G_fatal_error(_("Input failed"));
}
/*Vect_set_release_support(&Map); */
Vect_close(&Map);
if (treefile != NULL) {
if (0 > Vect_open_new(&TreeMap, treefile, 0)) {
clean();
G_fatal_error(_("Unable to open vector map <%s>"), treefile);
}
Vect_hist_command(&TreeMap);
/*
sprintf (TreeMap.head.your_name, "grass");
sprintf (TreeMap.head.map_name, "Quad tree for %s", input);
TreeMap.head.orig_scale = 100000;
TreeMap.head.plani_zone = G_zone ();
*/
print_tree(root, x_orig, y_orig, &TreeMap);
Vect_build(&TreeMap);
Vect_close(&TreeMap);
}
disk = disk + totsegm * sizeof(int) * 4;
sdisk = sdisk + totsegm * sizeof(int) * 4;
if (elev != NULL)
ddisk += disk;
if (slope != NULL)
sddisk += sdisk;
if (aspect != NULL)
sddisk += sdisk;
if (pcurv != NULL)
ddisk += disk;
if (tcurv != NULL)
ddisk += disk;
if (mcurv != NULL)
ddisk += disk;
ddisk += sddisk;
G_verbose_message(_("Processing all selected output files "
"will require %d bytes of disk space for temp files"), ddisk);
deltx = xmax - xmin;
delty = ymax - ymin;
dnorm = sqrt((deltx * delty * KMIN) / NPOINT);
if (dtens) {
params.fi = params.fi * dnorm / 1000.;
G_verbose_message("dnorm = %f, rescaled tension = %f", dnorm, params.fi);
}
bitmask = IL_create_bitmask(¶ms);
if (totsegm <= 0) {
clean();
G_fatal_error(_("Input failed"));
}
ertot = 0.;
G_message(_("Processing segments..."));
if (IL_interp_segments_2d(¶ms, info, info->root, bitmask,
zmin, zmax, &zminac, &zmaxac, &gmin, &gmax,
&c1min, &c1max, &c2min, &c2max, &ertot, totsegm,
n_cols, dnorm) < 0) {
clean();
G_fatal_error(_("Interp_segmets failed"));
}
G_free_vector(az);
if (cond1) {
G_free_vector(adx);
G_free_vector(ady);
if (cond2) {
G_free_vector(adxx);
G_free_vector(adyy);
G_free_vector(adxy);
}
}
ii = IL_output_2d(¶ms, &cellhd, zmin, zmax, zminac, zmaxac, c1min,
c1max, c2min, c2max, gmin, gmax, ertot, input, dnorm,
dtens, 1, NPOINT);
if (ii < 0) {
clean();
G_fatal_error(_("Unable to write raster maps - try to increase resolution"));
}
G_free(zero_array_cell);
if (elev != NULL)
fclose(Tmp_fd_z);
if (slope != NULL)
fclose(Tmp_fd_dx);
if (aspect != NULL)
fclose(Tmp_fd_dy);
if (pcurv != NULL)
fclose(Tmp_fd_xx);
if (tcurv != NULL)
fclose(Tmp_fd_yy);
if (mcurv != NULL)
fclose(Tmp_fd_xy);
if (overfile != NULL) {
if (0 > Vect_open_new(&OverMap, overfile, 0)) {
clean();
G_fatal_error(_("Unable to create vector map <%s>"), overfile);
}
Vect_hist_command(&OverMap);
/*
sprintf (OverMap.head.your_name, "grass");
sprintf (OverMap.head.map_name, "Overlap segments for %s", input);
OverMap.head.orig_scale = 100000;
OverMap.head.plani_zone = G_zone ();
*/
print_tree(root, x_orig, y_orig, &OverMap);
Vect_build(&OverMap);
Vect_close(&OverMap);
}
if (elev != NULL)
unlink(Tmp_file_z);
if (slope != NULL)
unlink(Tmp_file_dx);
if (aspect != NULL)
unlink(Tmp_file_dy);
if (pcurv != NULL)
unlink(Tmp_file_xx);
if (tcurv != NULL)
unlink(Tmp_file_yy);
if (mcurv != NULL)
unlink(Tmp_file_xy);
if (cvdev != NULL || devi != NULL) {
db_commit_transaction(driver2);
db_close_database_shutdown_driver(driver2);
Vect_build(&Map2);
Vect_close(&Map2);
}
G_done_msg(" ");
exit(EXIT_SUCCESS);
}
/* TODO: The collection of categories is horrible in current version!
* Everything repeats many times. We need some data structure
* implementing set! */
int copy_tables_by_cats(struct Map_info *In, struct Map_info *Out)
{
/* this is the (mostly) code from v.extract, it should be moved to
* some vector library (probably) */
int nlines, line, nfields;
int ttype, ntabs = 0;
struct field_info *IFi, *OFi;
struct line_cats *Cats;
int **ocats, *nocats, *fields;
int i;
/* Collect list of output cats */
Cats = Vect_new_cats_struct();
nfields = Vect_cidx_get_num_fields(In);
ocats = (int **)G_malloc(nfields * sizeof(int *));
nocats = (int *)G_malloc(nfields * sizeof(int));
fields = (int *)G_malloc(nfields * sizeof(int));
for (i = 0; i < nfields; i++) {
nocats[i] = 0;
ocats[i] =
(int *)G_malloc(Vect_cidx_get_num_cats_by_index(In, i) *
sizeof(int));
fields[i] = Vect_cidx_get_field_number(In, i);
}
nlines = Vect_get_num_lines(Out);
for (line = 1; line <= nlines; line++) {
Vect_read_line(Out, NULL, Cats, line);
for (i = 0; i < Cats->n_cats; i++) {
int f = 0, j;
for (j = 0; j < nfields; j++) { /* find field */
if (fields[j] == Cats->field[i]) {
f = j;
break;
}
}
ocats[f][nocats[f]] = Cats->cat[i];
nocats[f]++;
}
}
/* Copy tables */
G_message(_("Writing attributes..."));
/* Number of output tabs */
for (i = 0; i < Vect_get_num_dblinks(In); i++) {
int j, f = -1;
IFi = Vect_get_dblink(In, i);
for (j = 0; j < nfields; j++) { /* find field */
if (fields[j] == IFi->number) {
f = j;
break;
}
}
if (f >= 0 && nocats[f] > 0)
ntabs++;
}
if (ntabs > 1)
ttype = GV_MTABLE;
else
ttype = GV_1TABLE;
for (i = 0; i < nfields; i++) {
int ret;
if (fields[i] == 0)
continue;
if (nocats[i] == 0)
continue;
/* if ( fields[i] == field && new_cat != -1 ) continue; */
G_message(_("Layer %d"), fields[i]);
/* Make a list of categories */
IFi = Vect_get_field(In, fields[i]);
if (!IFi) { /* no table */
G_warning(_("Database connection not defined for layer %d"),
fields[i]);
continue;
}
OFi = Vect_default_field_info(Out, IFi->number, IFi->name, ttype);
ret = db_copy_table_by_ints(IFi->driver, IFi->database, IFi->table,
OFi->driver, Vect_subst_var(OFi->database,
Out),
OFi->table, IFi->key, ocats[i],
nocats[i]);
if (ret == DB_FAILED) {
G_warning(_("Unable to copy table <%s>"), IFi->table);
}
else {
Vect_map_add_dblink(Out, OFi->number, OFi->name, OFi->table,
IFi->key, OFi->database, OFi->driver);
}
}
for (i = 0; i < nfields; i++)
G_free(ocats[i]);
G_free(ocats);
G_free(nocats);
G_free(fields);
return 1;
}
int main(int argc, char *argv[])
{
struct Map_info In, Out, cut_map;
static struct line_pnts *Points;
struct line_cats *Cats;
struct GModule *module; /* GRASS module for parsing arguments */
struct Option *map_in, *map_out, *cut_out;
struct Option *afield_opt, *nfield_opt, *abcol, *afcol, *ncol;
struct Option *catsource_opt, *wheresource_opt;
struct Option *catsink_opt, *wheresink_opt;
int with_z;
int afield, nfield, mask_type;
struct varray *varray_source, *varray_sink;
dglGraph_s *graph;
int i, nlines, *flow, total_flow;
struct ilist *source_list, *sink_list, *cut;
int find_cut;
char buf[2000];
/* Attribute table */
dbString sql;
dbDriver *driver;
struct field_info *Fi;
/* initialize GIS environment */
G_gisinit(argv[0]); /* reads grass env, stores program name to G_program_name() */
/* initialize module */
module = G_define_module();
G_add_keyword(_("vector"));
G_add_keyword(_("network"));
G_add_keyword(_("flow"));
module->description =
_("Computes the maximum flow between two sets of nodes in the network.");
/* Define the different options as defined in gis.h */
map_in = G_define_standard_option(G_OPT_V_INPUT);
afield_opt = G_define_standard_option(G_OPT_V_FIELD);
afield_opt->key = "arc_layer";
afield_opt->answer = "1";
afield_opt->label = _("Arc layer");
afield_opt->guisection = _("Cost");
nfield_opt = G_define_standard_option(G_OPT_V_FIELD);
nfield_opt->key = "node_layer";
nfield_opt->answer = "2";
nfield_opt->label = _("Node layer");
nfield_opt->guisection = _("Cost");
map_out = G_define_standard_option(G_OPT_V_OUTPUT);
cut_out = G_define_standard_option(G_OPT_V_OUTPUT);
cut_out->key = "cut";
cut_out->description =
_("Name for output vector map containing a minimum cut");
afcol = G_define_standard_option(G_OPT_DB_COLUMN);
afcol->key = "arc_column";
afcol->required = NO;
afcol->description =
_("Arc forward/both direction(s) cost column (number)");
afcol->guisection = _("Cost");
abcol = G_define_standard_option(G_OPT_DB_COLUMN);
abcol->key = "arc_backward_column";
abcol->required = NO;
abcol->description = _("Arc backward direction cost column (number)");
abcol->guisection = _("Cost");
ncol = G_define_standard_option(G_OPT_DB_COLUMN);
ncol->key = "node_column";
ncol->required = NO;
ncol->description = _("Node cost column (number)");
ncol->guisection = _("Cost");
catsource_opt = G_define_standard_option(G_OPT_V_CATS);
catsource_opt->key = "source_cats";
catsource_opt->label = _("Source category values");
catsource_opt->guisection = _("Source");
wheresource_opt = G_define_standard_option(G_OPT_DB_WHERE);
wheresource_opt->key = "source_where";
wheresource_opt->label =
_("Source WHERE conditions of SQL statement without 'where' keyword");
wheresource_opt->guisection = _("Source");
catsink_opt = G_define_standard_option(G_OPT_V_CATS);
catsink_opt->key = "sink_cats";
catsink_opt->label = _("Sink category values");
catsink_opt->guisection = _("Sink");
wheresink_opt = G_define_standard_option(G_OPT_DB_WHERE);
wheresink_opt->key = "sink_where";
wheresink_opt->label =
_("Sink WHERE conditions of SQL statement without 'where' keyword");
wheresink_opt->guisection = _("Sink");
/* options and flags parser */
if (G_parser(argc, argv))
exit(EXIT_FAILURE);
find_cut = (cut_out->answer[0]);
/* TODO: make an option for this */
mask_type = GV_LINE | GV_BOUNDARY;
Points = Vect_new_line_struct();
Cats = Vect_new_cats_struct();
Vect_check_input_output_name(map_in->answer, map_out->answer,
G_FATAL_EXIT);
Vect_set_open_level(2);
if (1 > Vect_open_old(&In, map_in->answer, ""))
G_fatal_error(_("Unable to open vector map <%s>"), map_in->answer);
with_z = Vect_is_3d(&In);
if (0 > Vect_open_new(&Out, map_out->answer, with_z)) {
Vect_close(&In);
G_fatal_error(_("Unable to create vector map <%s>"), map_out->answer);
}
if (find_cut && 0 > Vect_open_new(&cut_map, cut_out->answer, with_z)) {
Vect_close(&In);
Vect_close(&Out);
G_fatal_error(_("Unable to create vector map <%s>"), cut_out->answer);
}
/* parse filter option and select appropriate lines */
afield = Vect_get_field_number(&In, afield_opt->answer);
nfield = Vect_get_field_number(&In, nfield_opt->answer);
/* Create table */
Fi = Vect_default_field_info(&Out, 1, NULL, GV_1TABLE);
Vect_map_add_dblink(&Out, 1, NULL, Fi->table, GV_KEY_COLUMN, Fi->database,
Fi->driver);
db_init_string(&sql);
driver = db_start_driver_open_database(Fi->driver, Fi->database);
if (driver == NULL)
G_fatal_error(_("Unable to open database <%s> by driver <%s>"),
Fi->database, Fi->driver);
db_set_error_handler_driver(driver);
sprintf(buf, "create table %s (cat integer, flow double precision)",
Fi->table);
db_set_string(&sql, buf);
G_debug(2, "%s", db_get_string(&sql));
if (db_execute_immediate(driver, &sql) != DB_OK) {
db_close_database_shutdown_driver(driver);
G_fatal_error(_("Unable to create table: '%s'"), db_get_string(&sql));
}
if (db_create_index2(driver, Fi->table, GV_KEY_COLUMN) != DB_OK)
G_warning(_("Cannot create index"));
if (db_grant_on_table
(driver, Fi->table, DB_PRIV_SELECT, DB_GROUP | DB_PUBLIC) != DB_OK)
G_fatal_error(_("Cannot grant privileges on table <%s>"), Fi->table);
db_begin_transaction(driver);
source_list = Vect_new_list();
sink_list = Vect_new_list();
if (NetA_initialise_varray
(&In, nfield, GV_POINT,
wheresource_opt->answer, catsource_opt->answer, &varray_source) <= 0) {
G_fatal_error(_("No source features selected. "
"Please check options '%s', '%s'."),
catsource_opt->key, wheresource_opt->key);
}
if (NetA_initialise_varray
(&In, nfield, GV_POINT, wheresink_opt->answer,
catsink_opt->answer, &varray_sink) <= 0) {
G_fatal_error(_("No sink features selected. "
"Please check options '%s', '%s'."),
catsink_opt->key, wheresink_opt->key);
}
NetA_varray_to_nodes(&In, varray_source, source_list, NULL);
NetA_varray_to_nodes(&In, varray_sink, sink_list, NULL);
if (source_list->n_values == 0)
G_fatal_error(_("No sources"));
if (sink_list->n_values == 0)
G_fatal_error(_("No sinks"));
Vect_copy_head_data(&In, &Out);
Vect_hist_copy(&In, &Out);
Vect_hist_command(&Out);
if (0 != Vect_net_build_graph(&In, mask_type, afield, nfield, afcol->answer, abcol->answer,
ncol->answer, 0, 0))
G_fatal_error(_("Unable to build graph for vector map <%s>"), Vect_get_full_name(&In));
graph = Vect_net_get_graph(&In);
nlines = Vect_get_num_lines(&In);
flow = (int *)G_calloc(nlines + 1, sizeof(int));
if (!flow)
G_fatal_error(_("Out of memory"));
total_flow = NetA_flow(graph, source_list, sink_list, flow);
G_debug(3, "Max flow: %d", total_flow);
if (find_cut) {
cut = Vect_new_list();
total_flow = NetA_min_cut(graph, source_list, sink_list, flow, cut);
G_debug(3, "Min cut: %d", total_flow);
}
G_message(_("Writing the output..."));
G_percent_reset();
for (i = 1; i <= nlines; i++) {
G_percent(i, nlines, 1);
int type = Vect_read_line(&In, Points, Cats, i);
Vect_write_line(&Out, type, Points, Cats);
if (type == GV_LINE) {
int cat;
Vect_cat_get(Cats, afield, &cat);
if (cat == -1)
continue; /*TODO: warning? */
sprintf(buf, "insert into %s values (%d, %f)", Fi->table, cat,
flow[i] / (double)In.dgraph.cost_multip);
db_set_string(&sql, buf);
G_debug(3, "%s", db_get_string(&sql));
if (db_execute_immediate(driver, &sql) != DB_OK) {
db_close_database_shutdown_driver(driver);
G_fatal_error(_("Cannot insert new record: %s"),
db_get_string(&sql));
};
}
}
if (find_cut) {
for (i = 0; i < cut->n_values; i++) {
int type = Vect_read_line(&In, Points, Cats, cut->value[i]);
Vect_write_line(&cut_map, type, Points, Cats);
}
Vect_destroy_list(cut);
Vect_build(&cut_map);
Vect_close(&cut_map);
}
db_commit_transaction(driver);
db_close_database_shutdown_driver(driver);
G_free(flow);
Vect_destroy_list(source_list);
Vect_destroy_list(sink_list);
Vect_build(&Out);
Vect_close(&In);
Vect_close(&Out);
exit(EXIT_SUCCESS);
}
int main(int argc, char *argv[])
{
char *output, buf[DB_SQL_MAX];
double (*rng)(void) = G_drand48;
double zmin, zmax;
int seed;
int i, j, k, n, type, usefloat;
int area, nareas, field;
struct boxlist *List = NULL;
BOX_SIZE *size_list = NULL;
int alloc_size_list = 0;
struct Map_info In, Out;
struct line_pnts *Points;
struct line_cats *Cats;
struct cat_list *cat_list;
struct bound_box box;
struct Cell_head window;
struct GModule *module;
struct
{
struct Option *input, *field, *cats, *where, *output, *nsites,
*zmin, *zmax, *zcol, *ztype, *seed;
} parm;
struct
{
struct Flag *z, *notopo, *a;
} flag;
struct field_info *Fi;
dbDriver *driver;
dbTable *table;
dbString sql;
G_gisinit(argv[0]);
module = G_define_module();
G_add_keyword(_("vector"));
G_add_keyword(_("sampling"));
G_add_keyword(_("statistics"));
G_add_keyword(_("random"));
module->description = _("Generates random 2D/3D vector points.");
parm.output = G_define_standard_option(G_OPT_V_OUTPUT);
parm.nsites = G_define_option();
parm.nsites->key = "n";
parm.nsites->type = TYPE_INTEGER;
parm.nsites->required = YES;
parm.nsites->description = _("Number of points to be created");
parm.input = G_define_standard_option(G_OPT_V_INPUT);
parm.input->required = NO;
parm.input->description = _("Restrict points to areas in input vector");
parm.input->guisection = _("Selection");
parm.field = G_define_standard_option(G_OPT_V_FIELD_ALL);
parm.field->guisection = _("Selection");
parm.cats = G_define_standard_option(G_OPT_V_CATS);
parm.cats->guisection = _("Selection");
parm.where = G_define_standard_option(G_OPT_DB_WHERE);
parm.where->guisection = _("Selection");
parm.zmin = G_define_option();
parm.zmin->key = "zmin";
parm.zmin->type = TYPE_DOUBLE;
parm.zmin->required = NO;
parm.zmin->description =
_("Minimum z height (needs -z flag or column name)");
parm.zmin->answer = "0.0";
parm.zmin->guisection = _("3D output");
parm.zmax = G_define_option();
parm.zmax->key = "zmax";
parm.zmax->type = TYPE_DOUBLE;
parm.zmax->required = NO;
parm.zmax->description =
_("Maximum z height (needs -z flag or column name)");
parm.zmax->answer = "0.0";
parm.zmax->guisection = _("3D output");
parm.seed = G_define_option();
parm.seed->key = "seed";
parm.seed->type = TYPE_INTEGER;
parm.seed->required = NO;
parm.seed->description =
_("The seed to initialize the random generator. If not set the process ID is used");
parm.zcol = G_define_standard_option(G_OPT_DB_COLUMN);
parm.zcol->label = _("Name of column for z values");
parm.zcol->description =
_("Writes z values to column");
parm.zcol->guisection = _("3D output");
parm.ztype = G_define_option();
parm.ztype->key = "column_type";
parm.ztype->type = TYPE_STRING;
parm.ztype->required = NO;
parm.ztype->multiple = NO;
parm.ztype->description = _("Type of column for z values");
parm.ztype->options = "integer,double precision";
parm.ztype->answer = "double precision";
parm.ztype->guisection = _("3D output");
flag.z = G_define_flag();
flag.z->key = 'z';
flag.z->description = _("Create 3D output");
flag.z->guisection = _("3D output");
flag.a = G_define_flag();
flag.a->key = 'a';
flag.a->description = _("Generate n points for each individual area");
flag.notopo = G_define_standard_flag(G_FLG_V_TOPO);
if (G_parser(argc, argv))
exit(EXIT_FAILURE);
output = parm.output->answer;
n = atoi(parm.nsites->answer);
if(parm.seed->answer)
seed = atoi(parm.seed->answer);
if (n <= 0) {
G_fatal_error(_("Number of points must be > 0 (%d given)"), n);
}
nareas = 0;
cat_list = NULL;
field = -1;
if (parm.input->answer) {
Vect_set_open_level(2); /* topology required */
if (2 > Vect_open_old2(&In, parm.input->answer, "", parm.field->answer))
G_fatal_error(_("Unable to open vector map <%s>"),
parm.input->answer);
if (parm.field->answer)
field = Vect_get_field_number(&In, parm.field->answer);
if ((parm.cats->answer || parm.where->answer) && field == -1) {
G_warning(_("Invalid layer number (%d). Parameter '%s' or '%s' specified, assuming layer '1'."),
field, parm.cats->key, parm.where->key);
field = 1;
}
if (field > 0)
cat_list = Vect_cats_set_constraint(&In, field, parm.where->answer,
parm.cats->answer);
nareas = Vect_get_num_areas(&In);
if (nareas == 0) {
Vect_close(&In);
G_fatal_error(_("No areas in vector map <%s>"), parm.input->answer);
}
}
else {
if (flag.a->answer)
G_fatal_error(_("The <-%c> flag requires an input vector with areas"),
flag.a->key);
}
/* create new vector map */
if (-1 == Vect_open_new(&Out, output, flag.z->answer ? WITH_Z : WITHOUT_Z))
G_fatal_error(_("Unable to create vector map <%s>"), output);
Vect_set_error_handler_io(NULL, &Out);
/* Do we need to write random values into attribute table? */
usefloat = -1;
if (parm.zcol->answer) {
Fi = Vect_default_field_info(&Out, 1, NULL, GV_1TABLE);
driver =
db_start_driver_open_database(Fi->driver,
Vect_subst_var(Fi->database, &Out));
if (driver == NULL) {
G_fatal_error(_("Unable to open database <%s> by driver <%s>"),
Vect_subst_var(Fi->database, &Out), Fi->driver);
}
db_set_error_handler_driver(driver);
db_begin_transaction(driver);
db_init_string(&sql);
sprintf(buf, "create table %s (%s integer, %s %s)", Fi->table, GV_KEY_COLUMN,
parm.zcol->answer, parm.ztype->answer);
db_set_string(&sql, buf);
Vect_map_add_dblink(&Out, 1, NULL, Fi->table, GV_KEY_COLUMN, Fi->database,
Fi->driver);
/* Create table */
G_debug(3, db_get_string(&sql));
if (db_execute_immediate(driver, &sql) != DB_OK) {
G_fatal_error(_("Unable to create table: %s"),
db_get_string(&sql));
}
/* Create index */
if (db_create_index2(driver, Fi->table, Fi->key) != DB_OK)
G_warning(_("Unable to create index"));
/* Grant */
if (db_grant_on_table
(driver, Fi->table, DB_PRIV_SELECT,
DB_GROUP | DB_PUBLIC) != DB_OK) {
G_fatal_error(_("Unable to grant privileges on table <%s>"),
Fi->table);
}
/* OK. Let's check what type of column user has created */
db_set_string(&sql, Fi->table);
if (db_describe_table(driver, &sql, &table) != DB_OK) {
G_fatal_error(_("Unable to describe table <%s>"), Fi->table);
}
if (db_get_table_number_of_columns(table) != 2) {
G_fatal_error(_("Table should contain only two columns"));
}
type = db_get_column_sqltype(db_get_table_column(table, 1));
if (type == DB_SQL_TYPE_SMALLINT || type == DB_SQL_TYPE_INTEGER)
usefloat = 0;
if (type == DB_SQL_TYPE_REAL || type == DB_SQL_TYPE_DOUBLE_PRECISION)
usefloat = 1;
if (usefloat < 0) {
G_fatal_error(_("You have created unsupported column type. This module supports only INTEGER"
" and DOUBLE PRECISION column types."));
}
}
Vect_hist_command(&Out);
/* Init the random seed */
if(parm.seed->answer)
G_srand48(seed);
else
G_srand48_auto();
G_get_window(&window);
Points = Vect_new_line_struct();
Cats = Vect_new_cats_struct();
if (nareas > 0) {
int first = 1, count;
struct bound_box abox, bbox;
box.W = window.west;
box.E = window.east;
box.S = window.south;
box.N = window.north;
box.B = -PORT_DOUBLE_MAX;
box.T = PORT_DOUBLE_MAX;
count = 0;
for (i = 1; i <= nareas; i++) {
if (!Vect_get_area_centroid(&In, i))
continue;
if (field > 0) {
if (Vect_get_area_cats(&In, i, Cats))
continue;
if (!Vect_cats_in_constraint(Cats, field, cat_list))
continue;
}
Vect_get_area_box(&In, i, &abox);
if (!Vect_box_overlap(&abox, &box))
continue;
if (first) {
Vect_box_copy(&bbox, &abox);
first = 0;
}
else
Vect_box_extend(&bbox, &abox);
count++;
}
if (count == 0) {
Vect_close(&In);
Vect_close(&Out);
Vect_delete(output);
G_fatal_error(_("Selected areas in input vector <%s> do not overlap with the current region"),
parm.input->answer);
}
Vect_box_copy(&box, &bbox);
/* does the vector overlap with the current region ? */
if (box.W >= window.east || box.E <= window.west ||
box.S >= window.north || box.N <= window.south) {
Vect_close(&In);
Vect_close(&Out);
Vect_delete(output);
G_fatal_error(_("Input vector <%s> does not overlap with the current region"),
parm.input->answer);
}
/* try to reduce the current region */
if (window.east > box.E)
window.east = box.E;
if (window.west < box.W)
window.west = box.W;
if (window.north > box.N)
window.north = box.N;
if (window.south < box.S)
window.south = box.S;
List = Vect_new_boxlist(1);
alloc_size_list = 10;
size_list = G_malloc(alloc_size_list * sizeof(BOX_SIZE));
}
zmin = zmax = 0;
if (flag.z->answer || parm.zcol->answer) {
zmax = atof(parm.zmax->answer);
zmin = atof(parm.zmin->answer);
}
G_message(_("Generating points..."));
if (flag.a->answer && nareas > 0) {
struct bound_box abox, bbox;
int cat = 1;
/* n points for each area */
nareas = Vect_get_num_areas(&In);
G_percent(0, nareas, 1);
for (area = 1; area <= nareas; area++) {
G_percent(area, nareas, 1);
if (!Vect_get_area_centroid(&In, area))
continue;
if (field > 0) {
if (Vect_get_area_cats(&In, area, Cats))
continue;
if (!Vect_cats_in_constraint(Cats, field, cat_list)) {
continue;
}
}
box.W = window.west;
box.E = window.east;
box.S = window.south;
box.N = window.north;
box.B = -PORT_DOUBLE_MAX;
box.T = PORT_DOUBLE_MAX;
Vect_get_area_box(&In, area, &abox);
if (!Vect_box_overlap(&box, &abox))
continue;
bbox = abox;
if (bbox.W < box.W)
bbox.W = box.W;
if (bbox.E > box.E)
bbox.E = box.E;
if (bbox.S < box.S)
bbox.S = box.S;
if (bbox.N > box.N)
bbox.N = box.N;
for (i = 0; i < n; ++i) {
double x, y, z;
int outside = 1;
int ret;
Vect_reset_line(Points);
Vect_reset_cats(Cats);
while (outside) {
x = rng() * (bbox.W - bbox.E) + bbox.E;
y = rng() * (bbox.N - bbox.S) + bbox.S;
z = rng() * (zmax - zmin) + zmin;
ret = Vect_point_in_area(x, y, &In, area, &abox);
G_debug(3, " area = %d Vect_point_in_area() = %d", area, ret);
if (ret >= 1) {
outside = 0;
}
}
if (flag.z->answer)
Vect_append_point(Points, x, y, z);
else
Vect_append_point(Points, x, y, 0.0);
if (parm.zcol->answer) {
sprintf(buf, "insert into %s values ( %d, ", Fi->table, i + 1);
db_set_string(&sql, buf);
/* Round random value if column is integer type */
if (usefloat)
sprintf(buf, "%f )", z);
else
sprintf(buf, "%.0f )", z);
db_append_string(&sql, buf);
G_debug(3, db_get_string(&sql));
if (db_execute_immediate(driver, &sql) != DB_OK) {
G_fatal_error(_("Cannot insert new row: %s"),
db_get_string(&sql));
}
}
Vect_cat_set(Cats, 1, cat++);
Vect_write_line(&Out, GV_POINT, Points, Cats);
}
}
}
else {
/* n points in total */
for (i = 0; i < n; ++i) {
double x, y, z;
G_percent(i, n, 4);
Vect_reset_line(Points);
Vect_reset_cats(Cats);
x = rng() * (window.west - window.east) + window.east;
y = rng() * (window.north - window.south) + window.south;
z = rng() * (zmax - zmin) + zmin;
if (nareas) {
int outside = 1;
do {
/* select areas by box */
box.E = x;
box.W = x;
box.N = y;
box.S = y;
box.T = PORT_DOUBLE_MAX;
box.B = -PORT_DOUBLE_MAX;
Vect_select_areas_by_box(&In, &box, List);
G_debug(3, " %d areas selected by box", List->n_values);
/* sort areas by size, the smallest is likely to be the nearest */
if (alloc_size_list < List->n_values) {
alloc_size_list = List->n_values;
size_list = G_realloc(size_list, alloc_size_list * sizeof(BOX_SIZE));
}
k = 0;
for (j = 0; j < List->n_values; j++) {
area = List->id[j];
if (!Vect_get_area_centroid(&In, area))
continue;
if (field > 0) {
if (Vect_get_area_cats(&In, area, Cats))
continue;
if (!Vect_cats_in_constraint(Cats, field, cat_list)) {
continue;
}
}
List->id[k] = List->id[j];
List->box[k] = List->box[j];
size_list[k].i = List->id[k];
box = List->box[k];
size_list[k].box = List->box[k];
size_list[k].size = (box.N - box.S) * (box.E - box.W);
k++;
}
List->n_values = k;
if (List->n_values == 2) {
/* simple swap */
if (size_list[1].size < size_list[0].size) {
size_list[0].i = List->id[1];
size_list[1].i = List->id[0];
size_list[0].box = List->box[1];
size_list[1].box = List->box[0];
}
}
else if (List->n_values > 2)
qsort(size_list, List->n_values, sizeof(BOX_SIZE), sort_by_size);
for (j = 0; j < List->n_values; j++) {
int ret;
area = size_list[j].i;
ret = Vect_point_in_area(x, y, &In, area, &size_list[j].box);
G_debug(3, " area = %d Vect_point_in_area() = %d", area, ret);
if (ret >= 1) {
outside = 0;
break;
}
}
if (outside) {
x = rng() * (window.west - window.east) + window.east;
y = rng() * (window.north - window.south) + window.south;
z = rng() * (zmax - zmin) + zmin;
}
} while (outside);
}
if (flag.z->answer)
Vect_append_point(Points, x, y, z);
else
Vect_append_point(Points, x, y, 0.0);
if (parm.zcol->answer) {
sprintf(buf, "insert into %s values ( %d, ", Fi->table, i + 1);
db_set_string(&sql, buf);
/* Round random value if column is integer type */
if (usefloat)
sprintf(buf, "%f )", z);
else
sprintf(buf, "%.0f )", z);
db_append_string(&sql, buf);
G_debug(3, db_get_string(&sql));
if (db_execute_immediate(driver, &sql) != DB_OK) {
G_fatal_error(_("Cannot insert new row: %s"),
db_get_string(&sql));
}
}
Vect_cat_set(Cats, 1, i + 1);
Vect_write_line(&Out, GV_POINT, Points, Cats);
}
G_percent(1, 1, 1);
}
if (parm.zcol->answer) {
db_commit_transaction(driver);
db_close_database_shutdown_driver(driver);
}
if (!flag.notopo->answer) {
Vect_build(&Out);
}
Vect_close(&Out);
exit(EXIT_SUCCESS);
}
int main(int argc, char *argv[])
{
/* variables */
DCELL *data_buf;
CELL *clump_buf;
CELL i, max;
int row, col, rows, cols;
int out_mode, use_MASK, *n, *e;
long int *count;
int fd_data, fd_clump;
const char *datamap, *clumpmap, *centroidsmap;
double avg, vol, total_vol, east, north, *sum;
struct Cell_head window;
struct Map_info *fd_centroids;
struct line_pnts *Points;
struct line_cats *Cats;
struct field_info *Fi;
char buf[DB_SQL_MAX];
dbString sql;
dbDriver *driver;
struct GModule *module;
struct {
struct Option *input, *clump, *centroids, *output;
} opt;
struct {
struct Flag *report;
} flag;
/* define parameters and flags */
G_gisinit(argv[0]);
module = G_define_module();
G_add_keyword(_("raster"));
G_add_keyword(_("volume"));
G_add_keyword(_("clumps"));
module->label =
_("Calculates the volume of data \"clumps\".");
module->description = _("Optionally produces a GRASS vector points map "
"containing the calculated centroids of these clumps.");
opt.input = G_define_standard_option(G_OPT_R_INPUT);
opt.input->description =
_("Name of input raster map representing data that will be summed within clumps");
opt.clump = G_define_standard_option(G_OPT_R_INPUT);
opt.clump->key = "clump";
opt.clump->required = NO;
opt.clump->label =
_("Name of input clump raster map");
opt.clump->description = _("Preferably the output of r.clump. "
"If no clump map is given than MASK is used.");
opt.centroids = G_define_standard_option(G_OPT_V_OUTPUT);
opt.centroids->key = "centroids";
opt.centroids->required = NO;
opt.centroids->description = _("Name for output vector points map to contain clump centroids");
opt.output = G_define_standard_option(G_OPT_F_OUTPUT);
opt.output->required = NO;
opt.output->label =
_("Name for output file to hold the report");
opt.output->description =
_("If no output file given report is printed to standard output");
flag.report = G_define_flag();
flag.report->key = 'f';
flag.report->description = _("Generate unformatted report (items separated by colon)");
if (G_parser(argc, argv))
exit(EXIT_FAILURE);
/* get arguments */
datamap = opt.input->answer;
clumpmap = NULL;
if (opt.clump->answer)
clumpmap = opt.clump->answer;
centroidsmap = NULL;
fd_centroids = NULL;
Points = NULL;
Cats = NULL;
driver = NULL;
if (opt.centroids->answer) {
centroidsmap = opt.centroids->answer;
fd_centroids = G_malloc(sizeof(struct Map_info));
}
out_mode = (!flag.report->answer);
/*
* see if MASK or a separate "clumpmap" raster map is to be used
* -- it must(!) be one of those two choices.
*/
use_MASK = 0;
if (!clumpmap) {
clumpmap = "MASK";
use_MASK = 1;
if (!G_find_raster2(clumpmap, G_mapset()))
G_fatal_error(_("No MASK found. If no clump map is given than the MASK is required. "
"You need to define a clump raster map or create a MASK by r.mask command."));
G_important_message(_("No clump map given, using MASK"));
}
/* open input and clump raster maps */
fd_data = Rast_open_old(datamap, "");
fd_clump = Rast_open_old(clumpmap, use_MASK ? G_mapset() : "");
/* initialize vector map (for centroids) if needed */
if (centroidsmap) {
if (Vect_open_new(fd_centroids, centroidsmap, WITHOUT_Z) < 0)
G_fatal_error(_("Unable to create vector map <%s>"), centroidsmap);
Points = Vect_new_line_struct();
Cats = Vect_new_cats_struct();
/* initialize data structures */
Vect_append_point(Points, 0., 0., 0.);
Vect_cat_set(Cats, 1, 1);
}
/* initialize output file */
if (opt.output->answer && strcmp(opt.output->answer, "-") != 0) {
if (freopen(opt.output->answer, "w", stdout) == NULL) {
perror(opt.output->answer);
exit(EXIT_FAILURE);
}
}
/* initialize data accumulation arrays */
max = Rast_get_max_c_cat(clumpmap, use_MASK ? G_mapset() : "");
sum = (double *)G_malloc((max + 1) * sizeof(double));
count = (long int *)G_malloc((max + 1) * sizeof(long int));
G_zero(sum, (max + 1) * sizeof(double));
G_zero(count, (max + 1) * sizeof(long int));
data_buf = Rast_allocate_d_buf();
clump_buf = Rast_allocate_c_buf();
/* get window size */
G_get_window(&window);
rows = window.rows;
cols = window.cols;
/* now get the data -- first pass */
for (row = 0; row < rows; row++) {
G_percent(row, rows, 2);
Rast_get_d_row(fd_data, data_buf, row);
Rast_get_c_row(fd_clump, clump_buf, row);
for (col = 0; col < cols; col++) {
i = clump_buf[col];
if (i > max)
G_fatal_error(_("Invalid category value %d (max=%d): row=%d col=%d"),
i, max, row, col);
if (i < 1) {
G_debug(3, "row=%d col=%d: zero or negs ignored", row, col);
continue; /* ignore zeros and negs */
}
if (Rast_is_d_null_value(&data_buf[col])) {
G_debug(3, "row=%d col=%d: NULL ignored", row, col);
continue;
}
sum[i] += data_buf[col];
count[i]++;
}
}
G_percent(1, 1, 1);
/* free some buffer space */
G_free(data_buf);
G_free(clump_buf);
/* data lists for centroids of clumps */
e = (int *)G_malloc((max + 1) * sizeof(int));
n = (int *)G_malloc((max + 1) * sizeof(int));
i = centroids(fd_clump, e, n, 1, max);
/* close raster maps */
Rast_close(fd_data);
Rast_close(fd_clump);
/* got everything, now do output */
if (centroidsmap) {
G_message(_("Creating vector point map <%s>..."), centroidsmap);
/* set comment */
sprintf(buf, _("From '%s' on raster map <%s> using clumps from <%s>"),
argv[0], datamap, clumpmap);
Vect_set_comment(fd_centroids, buf);
/* create attribute table */
Fi = Vect_default_field_info(fd_centroids, 1, NULL, GV_1TABLE);
driver = db_start_driver_open_database(Fi->driver,
Vect_subst_var(Fi->database, fd_centroids));
if (driver == NULL) {
G_fatal_error(_("Unable to open database <%s> by driver <%s>"),
Vect_subst_var(Fi->database, fd_centroids), Fi->driver);
}
db_set_error_handler_driver(driver);
db_begin_transaction(driver);
db_init_string(&sql);
sprintf(buf, "create table %s (cat integer, volume double precision, "
"average double precision, sum double precision, count integer)",
Fi->table);
db_set_string(&sql, buf);
Vect_map_add_dblink(fd_centroids, 1, NULL, Fi->table, GV_KEY_COLUMN, Fi->database,
Fi->driver);
G_debug(3, "%s", db_get_string(&sql));
if (db_execute_immediate(driver, &sql) != DB_OK) {
G_fatal_error(_("Unable to create table: %s"), db_get_string(&sql));
}
}
/* print header */
if (out_mode) {
fprintf(stdout, _("\nVolume report on data from <%s> using clumps on <%s> raster map"),
datamap, clumpmap);
fprintf(stdout, "\n\n");
fprintf(stdout,
_("Category Average Data # Cells Centroid Total\n"));
fprintf(stdout,
_("Number in clump Total in clump Easting Northing Volume"));
fprintf(stdout, "\n%s\n", SEP);
}
total_vol = 0.0;
/* print output, write centroids */
for (i = 1; i <= max; i++) {
if (count[i]) {
avg = sum[i] / (double)count[i];
vol = sum[i] * window.ew_res * window.ns_res;
total_vol += vol;
east = window.west + (e[i] + 0.5) * window.ew_res;
north = window.north - (n[i] + 0.5) * window.ns_res;
if (fd_centroids) { /* write centroids if requested */
Points->x[0] = east;
Points->y[0] = north;
Cats->cat[0] = i;
Vect_write_line(fd_centroids, GV_POINT, Points, Cats);
sprintf(buf, "insert into %s values (%d, %f, %f, %f, %ld)",
Fi->table, i, vol, avg, sum[i], count[i]);
db_set_string(&sql, buf);
if (db_execute_immediate(driver, &sql) != DB_OK)
G_fatal_error(_("Cannot insert new row: %s"),
db_get_string(&sql));
}
if (out_mode)
fprintf(stdout,
"%8d%10.2f%10.0f %7ld %10.2f %10.2f %16.2f\n", i,
avg, sum[i], count[i], east, north, vol);
else
fprintf(stdout, "%d:%.2f:%.0f:%ld:%.2f:%.2f:%.2f\n",
i, avg, sum[i], count[i], east, north, vol);
}
}
/* write centroid attributes and close the map*/
if (fd_centroids) {
db_commit_transaction(driver);
Vect_close(fd_centroids);
}
/* print total value */
if (total_vol > 0.0 && out_mode) {
fprintf(stdout, "%s\n", SEP);
fprintf(stdout, "%60s = %14.2f", _("Total Volume"), total_vol);
fprintf(stdout, "\n");
}
exit(EXIT_SUCCESS);
}
int main(int argc, char **argv)
{
int field, type, vertex_type;
double dmax;
char buf[DB_SQL_MAX];
struct {
struct Option *input, *output, *type, *dmax, *lfield, *use;
} opt;
struct {
struct Flag *table, *inter;
} flag;
struct GModule *module;
struct Map_info In, Out;
struct line_cats *LCats;
struct line_pnts *LPoints;
dbDriver *driver;
struct field_info *Fi;
dbString stmt;
G_gisinit(argv[0]);
module = G_define_module();
G_add_keyword(_("vector"));
G_add_keyword(_("geometry"));
G_add_keyword("3D");
G_add_keyword(_("node"));
G_add_keyword(_("vertex"));
module->description =
_("Creates points along input lines in new vector map with 2 layers.");
opt.input = G_define_standard_option(G_OPT_V_INPUT);
opt.lfield = G_define_standard_option(G_OPT_V_FIELD);
opt.lfield->key = "llayer";
opt.lfield->answer = "1";
opt.lfield->label = "Line layer number or name";
opt.lfield->guisection = _("Selection");
opt.type = G_define_standard_option(G_OPT_V3_TYPE);
opt.type->answer = "point,line,boundary,centroid,face";
opt.type->guisection = _("Selection");
opt.output = G_define_standard_option(G_OPT_V_OUTPUT);
opt.use = G_define_option();
opt.use->key = "use";
opt.use->type = TYPE_STRING;
opt.use->required = NO;
opt.use->description = _("Use line nodes or vertices only");
opt.use->options = "node,vertex";
opt.dmax = G_define_option();
opt.dmax->key = "dmax";
opt.dmax->type = TYPE_DOUBLE;
opt.dmax->required = NO;
opt.dmax->answer = "100";
opt.dmax->description = _("Maximum distance between points in map units");
flag.inter = G_define_flag();
flag.inter->key = 'i';
flag.inter->description = _("Interpolate points between line vertices (only for use=vertex)");
flag.table = G_define_standard_flag(G_FLG_V_TABLE);
if (G_parser(argc, argv))
exit(EXIT_FAILURE);
LCats = Vect_new_cats_struct();
LPoints = Vect_new_line_struct();
db_init_string(&stmt);
type = Vect_option_to_types(opt.type);
dmax = atof(opt.dmax->answer);
vertex_type = 0;
if (opt.use->answer) {
if (opt.use->answer[0] == 'n')
vertex_type = GV_NODE;
else
vertex_type = GV_VERTEX;
}
Vect_check_input_output_name(opt.input->answer, opt.output->answer,
G_FATAL_EXIT);
/* Open input lines */
Vect_set_open_level(2);
if (Vect_open_old2(&In, opt.input->answer, "", opt.lfield->answer) < 0)
G_fatal_error(_("Unable to open vector map <%s>"), opt.input->answer);
Vect_set_error_handler_io(&In, &Out);
field = Vect_get_field_number(&In, opt.lfield->answer);
/* Open output segments */
if (Vect_open_new(&Out, opt.output->answer, Vect_is_3d(&In)) < 0)
G_fatal_error(_("Unable to create vector map <%s>"),
opt.output->answer);
Vect_copy_head_data(&In, &Out);
Vect_hist_copy(&In, &Out);
Vect_hist_command(&Out);
/* Table */
Fi = NULL;
if (!flag.table->answer) {
struct field_info *Fin;
/* copy input table */
Fin = Vect_get_field(&In, field);
if (Fin) { /* table defined */
int ret;
Fi = Vect_default_field_info(&Out, 1, NULL, GV_MTABLE);
Vect_map_add_dblink(&Out, 1, NULL, Fi->table, Fin->key,
Fi->database, Fi->driver);
ret = db_copy_table(Fin->driver, Fin->database, Fin->table,
Fi->driver, Vect_subst_var(Fi->database,
&Out), Fi->table);
if (ret == DB_FAILED) {
G_fatal_error(_("Unable to copy table <%s>"),
Fin->table);
}
}
Fi = Vect_default_field_info(&Out, 2, NULL, GV_MTABLE);
Vect_map_add_dblink(&Out, 2, NULL, Fi->table, GV_KEY_COLUMN, Fi->database,
Fi->driver);
/* Open driver */
driver = db_start_driver_open_database(Fi->driver, Fi->database);
if (driver == NULL)
G_fatal_error(_("Unable to open database <%s> by driver <%s>"),
Fi->database, Fi->driver);
db_set_error_handler_driver(driver);
if (field == -1)
sprintf(buf,
"create table %s ( cat int, along double precision )",
Fi->table);
else
sprintf(buf,
"create table %s ( cat int, lcat int, along double precision )",
Fi->table);
db_append_string(&stmt, buf);
if (db_execute_immediate(driver, &stmt) != DB_OK) {
G_fatal_error(_("Unable to create table: '%s'"),
db_get_string(&stmt));
}
if (db_create_index2(driver, Fi->table, GV_KEY_COLUMN) != DB_OK)
G_warning(_("Unable to create index for table <%s>, key <%s>"),
Fi->table, GV_KEY_COLUMN);
if (db_grant_on_table (driver, Fi->table, DB_PRIV_SELECT,
DB_GROUP | DB_PUBLIC) != DB_OK)
G_fatal_error(_("Unable to grant privileges on table <%s>"),
Fi->table);
db_begin_transaction(driver);
}
if (type & (GV_POINTS | GV_LINES | GV_FACE)) {
int line, nlines, nskipped;
nskipped = 0;
nlines = Vect_get_num_lines(&In);
for (line = 1; line <= nlines; line++) {
int ltype, cat;
G_debug(3, "line = %d", line);
G_percent(line, nlines, 2);
ltype = Vect_read_line(&In, LPoints, LCats, line);
if (!(ltype & type))
continue;
if (!Vect_cat_get(LCats, field, &cat) && field != -1) {
nskipped++;
continue;
}
/* Assign CAT for layer 0 objects (i.e. boundaries) */
if (field == -1)
cat = -1;
if (LPoints->n_points <= 1) {
write_point(&Out, LPoints->x[0], LPoints->y[0], LPoints->z[0],
cat, 0.0, driver, Fi);
}
else { /* lines */
write_line(&Out, LPoints, cat, vertex_type,
flag.inter->answer, dmax, driver, Fi);
}
}
if (nskipped > 0)
G_warning(_("%d features without category in layer <%d> skipped. "
"Note that features without category (usually boundaries) are not "
"skipped when '%s=-1' is given."),
nskipped, field, opt.lfield->key);
}
if (type == GV_AREA) {
int area, nareas, centroid, cat;
nareas = Vect_get_num_areas(&In);
for (area = 1; area <= nareas; area++) {
int i, isle, nisles;
G_percent(area, nareas, 2);
centroid = Vect_get_area_centroid(&In, area);
cat = -1;
if (centroid > 0) {
Vect_read_line(&In, NULL, LCats, centroid);
if (!Vect_cat_get(LCats, field, &cat))
continue;
}
Vect_get_area_points(&In, area, LPoints);
write_line(&Out, LPoints, cat, vertex_type, flag.inter->answer,
dmax, driver, Fi);
nisles = Vect_get_area_num_isles(&In, area);
for (i = 0; i < nisles; i++) {
isle = Vect_get_area_isle(&In, area, i);
Vect_get_isle_points(&In, isle, LPoints);
write_line(&Out, LPoints, cat, vertex_type,
flag.inter->answer, dmax, driver, Fi);
}
}
}
if (!flag.table->answer) {
db_commit_transaction(driver);
db_close_database_shutdown_driver(driver);
}
Vect_build(&Out);
/* Free, close ... */
Vect_close(&In);
G_done_msg(_("%d points written to output vector map."),
Vect_get_num_primitives(&Out, GV_POINT));
Vect_close(&Out);
exit(EXIT_SUCCESS);
}
int main(int argc, char *argv[])
{
struct GModule *module;
struct Option *out_opt, *in_opt;
struct Flag *z_flag, *circle_flag, *l_flag, *int_flag;
char buf[2000];
/* DWG */
char path[2000];
short initerror, entset, retval;
AD_OBJHANDLE pspace, mspace;
PAD_ENT_HDR adenhd;
PAD_ENT aden;
AD_VMADDR entlist;
G_gisinit(argv[0]);
module = G_define_module();
G_add_keyword(_("vector"));
G_add_keyword(_("import"));
module->description = _("Converts DWG/DXF to GRASS vector map");
in_opt = G_define_standard_option(G_OPT_F_INPUT);
in_opt->description = _("Name of DWG or DXF file");
out_opt = G_define_standard_option(G_OPT_V_OUTPUT);
out_opt->required = YES;
layers_opt = G_define_option();
layers_opt->key = "layers";
layers_opt->type = TYPE_STRING;
layers_opt->required = NO;
layers_opt->multiple = YES;
layers_opt->description = _("List of layers to import");
invert_flag = G_define_flag();
invert_flag->key = 'i';
invert_flag->description =
_("Invert selection by layers (don't import layers in list)");
z_flag = G_define_flag();
z_flag->key = 'z';
z_flag->description = _("Create 3D vector map");
circle_flag = G_define_flag();
circle_flag->key = 'c';
circle_flag->description = _("Write circles as points (centre)");
l_flag = G_define_flag();
l_flag->key = 'l';
l_flag->description = _("List available layers and exit");
int_flag = G_define_flag();
int_flag->key = 'n';
int_flag->description = _("Use numeric type for attribute \"layer\"");
if (G_parser(argc, argv))
exit(EXIT_FAILURE);
db_init_string(&sql);
db_init_string(&str);
adenhd = (PAD_ENT_HDR) G_malloc(sizeof(AD_ENT_HDR));
aden = (PAD_ENT) G_malloc(sizeof(AD_ENT));
Layer = (PAD_LAY) G_malloc(sizeof(AD_LAY));
Points = Vect_new_line_struct();
Cats = Vect_new_cats_struct();
Block = NULL;
atrans = 20; /* nested, recursive levels */
Trans = (TRANS *) G_malloc(atrans * sizeof(TRANS));
/* Init OpenDWG */
sprintf(path, "%s/etc/adinit.dat", G_gisbase());
if (!adInitAd2(path, &initerror)) {
sprintf(buf, _("Unable to initialize OpenDWG Toolkit, error: %d: %s."),
initerror, adErrorStr(initerror));
if (initerror == AD_UNABLE_TO_OPEN_INIT_FILE)
sprintf(buf, _("%s Cannot open %s"), buf, path);
G_fatal_error(buf);
}
adSetupDwgRead();
adSetupDxfRead();
/* Open input file */
if ((dwghandle = adLoadFile(in_opt->answer, AD_PRELOAD_ALL, 1)) == NULL) {
G_fatal_error(_("Unable to open input file <%s>. Error %d: %s"),
in_opt->answer, adError(),
adErrorStr(adError()));
}
if (l_flag->answer) { /* List layers */
PAD_TB adtb;
AD_DWGHDR adhd;
int i;
char on, frozen, vpfrozen, locked;
adtb = (PAD_TB) G_malloc(sizeof(AD_TB));
G_debug(2, "%d layers", (int)adNumLayers(dwghandle));
adReadHeaderBlock(dwghandle, &adhd);
adStartLayerGet(dwghandle);
fprintf(stdout, "%d layers:\n", (int)adNumLayers(dwghandle));
for (i = 0; i < (int)adNumLayers(dwghandle); i++) {
adGetLayer(dwghandle, &(adtb->lay));
if (!adtb->lay.purgedflag) {
fprintf(stdout, "%s COLOR %d, ", adtb->lay.name,
adtb->lay.color);
}
adGetLayerState(dwghandle, adtb->lay.objhandle, &on, &frozen,
&vpfrozen, &locked);
if (on)
fprintf(stdout, "ON, ");
else
fprintf(stdout, "OFF, ");
if (frozen)
fprintf(stdout, "FROZEN, ");
else
fprintf(stdout, "THAWED, ");
if (vpfrozen)
fprintf(stdout, "VPFROZEN, ");
else
fprintf(stdout, "VPTHAWED, ");
if (locked)
fprintf(stdout, "LOCKED\n");
else
fprintf(stdout, "UNLOCKED\n");
}
adCloseFile(dwghandle);
adCloseAd2();
exit(EXIT_SUCCESS);
}
/* open output vector */
if (Vect_open_new(&Map, out_opt->answer, z_flag->answer) < 0)
G_fatal_error(_("Unable to create vector map <%s>"), out_opt->answer);
Vect_hist_command(&Map);
/* Add DB link */
Fi = Vect_default_field_info(&Map, 1, NULL, GV_1TABLE);
Vect_map_add_dblink(&Map, 1, NULL, Fi->table, GV_KEY_COLUMN, Fi->database,
Fi->driver);
driver =
db_start_driver_open_database(Fi->driver,
Vect_subst_var(Fi->database, &Map));
if (driver == NULL) {
G_fatal_error(_("Unable to open database <%s> by driver <%s>"),
Vect_subst_var(Fi->database, &Map), Fi->driver);
}
db_set_error_handler_driver(driver);
db_begin_transaction(driver);
/* Create table */
if (int_flag->answer) { /* List layers */
sprintf(buf,
"create table %s ( cat integer, entity_name varchar(20), color int, weight int, "
"layer real, block varchar(100), txt varchar(100) )",
Fi->table);
}
else {
sprintf(buf,
"create table %s ( cat integer, entity_name varchar(20), color int, weight int, "
"layer varchar(100), block varchar(100), txt varchar(100) )",
Fi->table);
}
db_set_string(&sql, buf);
G_debug(3, db_get_string(&sql));
if (db_execute_immediate(driver, &sql) != DB_OK) {
db_close_database(driver);
db_shutdown_driver(driver);
G_fatal_error(_("Unable to create table: '%s'"), db_get_string(&sql));
}
if (db_create_index2(driver, Fi->table, GV_KEY_COLUMN) != DB_OK)
G_warning(_("Unable to create index for table <%s>, key <%s>"),
Fi->table, GV_KEY_COLUMN);
if (db_grant_on_table
(driver, Fi->table, DB_PRIV_SELECT, DB_GROUP | DB_PUBLIC) != DB_OK)
G_fatal_error(_("Unable to grant privileges on table <%s>"),
Fi->table);
cat = 1;
n_elements = n_skipped = 0;
/* Write each entity. Some entities may be composed by other entities (like INSERT or BLOCK) */
/* Set transformation for first (index 0) level */
Trans[0].dx = Trans[0].dy = Trans[0].dz = 0;
Trans[0].xscale = Trans[0].yscale = Trans[0].zscale = 1;
Trans[0].rotang = 0;
if (adGetBlockHandle(dwghandle, pspace, AD_PAPERSPACE_HANDLE)) {
entlist = adEntityList(dwghandle, pspace);
adStartEntityGet(entlist);
for (entset = 0; entset < 2; entset++) {
do {
if (!(retval = adGetEntity(entlist, adenhd, aden)))
continue;
wrentity(adenhd, aden, 0, entlist, circle_flag->answer);
} while (retval == 1);
if (entset == 0) {
if (adGetBlockHandle(dwghandle, mspace, AD_MODELSPACE_HANDLE)) {
entlist = adEntityList(dwghandle, mspace);
adStartEntityGet(entlist);
}
}
}
}
db_commit_transaction(driver);
db_close_database_shutdown_driver(driver);
adCloseFile(dwghandle);
adCloseAd2();
Vect_build(&Map, stderr);
Vect_close(&Map);
if (n_skipped > 0)
G_message(_("%d elements skipped (layer name was not in list)"),
n_skipped);
G_done_msg(_("%d elements processed"), n_elements);
exit(EXIT_SUCCESS);
}
int main(int argc, char *argv[])
{
/* loop */
int i, j;
/* store filename and path */
char *dig_file;
char buf[2000];
/* Other local variables */
int attCount, nbreaks;
struct grid_description grid_info;
struct Cell_head window;
struct Map_info Map;
struct Option *vectname, *grid, *coord, *box, *angle, *position_opt, *breaks;
struct GModule *module;
struct Flag *points_fl, *line_fl;
int points_p, line_p, output_type;
char *desc;
struct line_pnts *Points;
struct line_cats *Cats;
/* Attributes */
struct field_info *Fi;
dbDriver *Driver;
dbString sql;
G_gisinit(argv[0]);
/* Set description */
module = G_define_module();
G_add_keyword(_("vector"));
G_add_keyword(_("geometry"));
module->description = _("Creates a vector map of a user-defined grid.");
vectname = G_define_standard_option(G_OPT_V_OUTPUT);
vectname->key = "map";
grid = G_define_option();
grid->key = "grid";
grid->key_desc = _("rows,columns");
grid->type = TYPE_INTEGER;
grid->required = YES;
grid->multiple = NO;
grid->description = _("Number of rows and columns in grid");
position_opt = G_define_option();
position_opt->key = "position";
position_opt->type = TYPE_STRING;
position_opt->required = NO;
position_opt->multiple = NO;
position_opt->options = "region,coor";
position_opt->answer = "region";
position_opt->description = _("Where to place the grid");
desc = NULL;
G_asprintf(&desc,
"region;%s;coor;%s",
_("current region"),
_("use 'coor' and 'box' options"));
position_opt->descriptions = desc;
coord = G_define_option();
coord->key = "coor";
coord->key_desc = "x,y";
coord->type = TYPE_DOUBLE;
coord->required = NO;
coord->multiple = NO;
coord->description =
_("Lower left easting and northing coordinates of map");
box = G_define_option();
box->key = "box";
box->key_desc = _("width,height");
box->type = TYPE_DOUBLE;
box->required = NO;
box->multiple = NO;
box->description = _("Width and height of boxes in grid");
angle = G_define_option();
angle->key = "angle";
angle->type = TYPE_DOUBLE;
angle->required = NO;
angle->description =
_("Angle of rotation (in degrees counter-clockwise)");
angle->answer = "0";
breaks = G_define_option();
breaks->key = "breaks";
breaks->type = TYPE_INTEGER;
breaks->required = NO;
breaks->description =
_("Number of vertex points per grid cell");
breaks->options = "0-60";
breaks->answer = "3";
points_fl = G_define_flag();
points_fl->key = 'p';
points_fl->description =
_("Create grid of points instead of areas and centroids");
line_fl = G_define_flag();
line_fl->key = 'l';
line_fl->description =
_("Create grid as lines, instead of areas");
if (G_parser(argc, argv))
exit(EXIT_FAILURE);
line_p = line_fl->answer;
if (line_p) {
output_type = GV_LINE;
} else {
output_type = GV_BOUNDARY;
}
points_p = points_fl->answer;
/* get the current window */
G_get_window(&window);
/*
* information we need to collect from user: origin point x and y (lower
* left), shift in x, shift in y, number of rows, number of cols
*/
dig_file = G_store(vectname->answer);
/* Number of row and cols */
grid_info.num_rows = atoi(grid->answers[0]);
grid_info.num_cols = atoi(grid->answers[1]);
grid_info.angle = M_PI / 180 * atof(angle->answer);
nbreaks = atoi(breaks->answer);
/* Position */
if (position_opt->answer[0] == 'r') { /* region */
if (coord->answer)
G_fatal_error(_("'coor' and 'position=region' are exclusive options"));
if (box->answer)
G_fatal_error(_("'box' and 'position=region' are exclusive options"));
if (grid_info.angle != 0.0)
G_fatal_error(_("'angle' and 'position=region' are exclusive options"));
grid_info.origin_x = window.west;
grid_info.origin_y = window.south;
grid_info.length = (window.east - window.west) / grid_info.num_cols;
grid_info.width = (window.north - window.south) / grid_info.num_rows;
G_debug(2, "x = %e y = %e l = %e w = %e", grid_info.origin_x,
grid_info.origin_y, grid_info.length, grid_info.width);
}
else {
if (!coord->answer)
G_fatal_error(_("'coor' option missing"));
if (!box->answer)
G_fatal_error(_("'box' option missing"));
if (!G_scan_easting
(coord->answers[0], &(grid_info.origin_x), window.proj))
G_fatal_error(_("Invalid easting"));;
if (!G_scan_northing
(coord->answers[1], &(grid_info.origin_y), window.proj))
G_fatal_error(_("Invalid northing"));;
if (!G_scan_resolution
(box->answers[0], &(grid_info.length), window.proj))
G_fatal_error(_("Invalid distance"));;
if (!G_scan_resolution
(box->answers[1], &(grid_info.width), window.proj))
G_fatal_error(_("Invalid distance"));;
}
/*
* vector rows are the actual number of rows of vectors to make up the
* entire grid. ditto for cols.
*/
grid_info.num_vect_rows = grid_info.num_rows + 1;
grid_info.num_vect_cols = grid_info.num_cols + 1;
Points = Vect_new_line_struct();
Cats = Vect_new_cats_struct();
db_init_string(&sql);
/* Open output map */
if (0 > Vect_open_new(&Map, dig_file, 0)) {
G_fatal_error(_("Unable to create vector map <%s>"), dig_file);
}
Vect_hist_command(&Map);
/* Open database, create table */
Fi = Vect_default_field_info(&Map, 1, NULL, GV_1TABLE);
Vect_map_add_dblink(&Map, Fi->number, Fi->name, Fi->table, Fi->key,
Fi->database, Fi->driver);
Driver =
db_start_driver_open_database(Fi->driver,
Vect_subst_var(Fi->database, &Map));
if (Driver == NULL)
G_fatal_error(_("Unable to open database <%s> by driver <%s>"),
Fi->database, Fi->driver);
db_set_error_handler_driver(Driver);
if (grid_info.num_rows < 27 && grid_info.num_cols < 27) {
sprintf(buf,
"create table %s ( cat integer, row integer, col integer, "
"rown varchar(1), coln varchar(1))", Fi->table);
}
else {
sprintf(buf,
"create table %s ( cat integer, row integer, col integer)",
Fi->table);
}
db_set_string(&sql, buf);
G_debug(1, "SQL: %s", db_get_string(&sql));
if (db_execute_immediate(Driver, &sql) != DB_OK) {
G_fatal_error(_("Unable to create table: %s"), db_get_string(&sql));
}
if (db_create_index2(Driver, Fi->table, Fi->key) != DB_OK)
G_warning(_("Unable to create index"));
if (db_grant_on_table
(Driver, Fi->table, DB_PRIV_SELECT, DB_GROUP | DB_PUBLIC) != DB_OK)
G_fatal_error(_("Unable to grant privileges on table <%s>"),
Fi->table);
if (!points_p) {
/* create areas */
write_grid(&grid_info, &Map, nbreaks, output_type);
}
/* Create a grid of label points at the centres of the grid cells */
G_verbose_message(_("Creating centroids..."));
/* Write out centroids and attributes */
/* If the output id is lines it skips to add centroids and attributes
TODO decide what to write in the attribute table
*/
if (!line_p) {
db_begin_transaction(Driver);
attCount = 0;
for (i = 0; i < grid_info.num_rows; ++i) {
for (j = 0; j < grid_info.num_cols; ++j) {
double x, y;
const int point_type = points_p ? GV_POINT : GV_CENTROID;
x = grid_info.origin_x + (0.5 + j) * grid_info.length;
y = grid_info.origin_y + (0.5 + i) * grid_info.width;
rotate(&x, &y, grid_info.origin_x, grid_info.origin_y,
grid_info.angle);
Vect_reset_line(Points);
Vect_reset_cats(Cats);
Vect_append_point(Points, x, y, 0.0);
Vect_cat_set(Cats, 1, attCount + 1);
Vect_write_line(&Map, point_type, Points, Cats);
sprintf(buf, "insert into %s values ", Fi->table);
if (db_set_string(&sql, buf) != DB_OK)
G_fatal_error(_("Unable to fill attribute table"));
if (grid_info.num_rows < 27 && grid_info.num_cols < 27) {
sprintf(buf,
"( %d, %d, %d, '%c', '%c' )",
attCount + 1, grid_info.num_rows - i,
j + 1, 'A' + grid_info.num_rows - i - 1, 'A' + j);
}
else {
sprintf(buf, "( %d, %d, %d )",
attCount + 1, i + 1, j + 1);
}
if (db_append_string(&sql, buf) != DB_OK)
G_fatal_error(_("Unable to fill attribute table"));
G_debug(3, "SQL: %s", db_get_string(&sql));
if (db_execute_immediate(Driver, &sql) != DB_OK) {
G_fatal_error(_("Unable to insert new record: %s"),
db_get_string(&sql));
}
attCount++;
}
}
}
db_commit_transaction(Driver);
db_close_database_shutdown_driver(Driver);
Vect_build(&Map);
Vect_close(&Map);
exit(EXIT_SUCCESS);
}
int main(int argc, char *argv[])
{
struct GModule *module;
struct Option *in_opt, *out_opt, *feature_opt, *column_name;
struct Flag *smooth_flg, *value_flg, *z_flg, *no_topol;
int feature;
G_gisinit(argv[0]);
module = G_define_module();
G_add_keyword(_("raster"));
G_add_keyword(_("conversion"));
G_add_keyword(_("geometry"));
G_add_keyword(_("vectorization"));
module->description = _("Converts a raster map into a vector map.");
in_opt = G_define_standard_option(G_OPT_R_INPUT);
out_opt = G_define_standard_option(G_OPT_V_OUTPUT);
feature_opt = G_define_standard_option(G_OPT_V_TYPE);
feature_opt->required = YES;
feature_opt->multiple = NO;
feature_opt->options = "point,line,area";
feature_opt->answer = NULL;
column_name = G_define_standard_option(G_OPT_DB_COLUMN);
column_name->label = _("Name of attribute column to store value");
column_name->description = _("Name must be SQL compliant");
column_name->answer = "value";
smooth_flg = G_define_flag();
smooth_flg->key = 's';
smooth_flg->description = _("Smooth corners of area features");
value_flg = G_define_flag();
value_flg->key = 'v';
value_flg->description =
_("Use raster values as categories instead of unique sequence (CELL only)");
value_flg->guisection = _("Attributes");
z_flg = G_define_flag();
z_flg->key = 'z';
z_flg->label = _("Write raster values as z coordinate");
z_flg->description = _("Table is not created. "
"Currently supported only for points.");
z_flg->guisection = _("Attributes");
no_topol = G_define_flag();
no_topol->key = 'b';
no_topol->label = _("Do not build vector topology");
no_topol->description = _("Recommended for massive point conversion");
if (G_parser(argc, argv))
exit(EXIT_FAILURE);
feature = Vect_option_to_types(feature_opt);
smooth_flag = (smooth_flg->answer) ? SMOOTH : NO_SMOOTH;
value_flag = value_flg->answer;
if (z_flg->answer && (feature != GV_POINT))
G_fatal_error(_("z flag is supported only for points"));
/* Open files */
input_fd = Rast_open_old(in_opt->answer, "");
data_type = Rast_get_map_type(input_fd);
data_size = Rast_cell_size(data_type);
G_get_window(&cell_head);
if (value_flag && data_type != CELL_TYPE) {
G_warning(_("Raster is not CELL, '-v' flag ignored, raster values will be written to the table."));
value_flag = 0;
}
if (z_flg->answer)
Vect_open_new(&Map, out_opt->answer, 1);
else
Vect_open_new(&Map, out_opt->answer, 0);
Vect_hist_command(&Map);
Cats = Vect_new_cats_struct();
/* Open category labels */
if (data_type == CELL_TYPE) {
if (0 == Rast_read_cats(in_opt->answer, "", &RastCats))
has_cats = 1;
}
else
has_cats = 0;
db_init_string(&sql);
db_init_string(&label);
/* Create table */
if ((feature & (GV_AREA | GV_POINT | GV_LINE)) &&
(!value_flag || (value_flag && has_cats)) && !(z_flg->answer)) {
char buf[1000];
Fi = Vect_default_field_info(&Map, 1, NULL, GV_1TABLE);
Vect_map_add_dblink(&Map, 1, NULL, Fi->table, GV_KEY_COLUMN, Fi->database,
Fi->driver);
driver =
db_start_driver_open_database(Fi->driver,
Vect_subst_var(Fi->database, &Map));
if (driver == NULL)
G_fatal_error(_("Unable to open database <%s> by driver <%s>"),
Fi->database, Fi->driver);
/* Create new table */
db_zero_string(&sql);
sprintf(buf, "create table %s ( cat integer", Fi->table);
db_append_string(&sql, buf);
if (!value_flag) { /* add value to the table */
if (data_type == CELL_TYPE) {
db_append_string(&sql, ", ");
db_append_string(&sql, column_name->answer);
db_append_string(&sql, " integer");
} else {
db_append_string(&sql, ",");
db_append_string(&sql, column_name->answer);
db_append_string(&sql, " double precision");
}
}
if (has_cats) {
int i, len;
int clen = 0;
/* Get maximum column length */
for (i = 0; i < RastCats.ncats; i++) {
len = strlen(RastCats.labels[i]);
if (len > clen)
clen = len;
}
clen += 10;
sprintf(buf, ", label varchar(%d)", clen);
db_append_string(&sql, buf);
}
db_append_string(&sql, ")");
G_debug(3, db_get_string(&sql));
if (db_execute_immediate(driver, &sql) != DB_OK)
G_fatal_error(_("Unable to create table: %s"),
db_get_string(&sql));
if (db_create_index2(driver, Fi->table, GV_KEY_COLUMN) != DB_OK)
G_warning(_("Unable to create index"));
if (db_grant_on_table
(driver, Fi->table, DB_PRIV_SELECT,
DB_GROUP | DB_PUBLIC) != DB_OK)
G_fatal_error(_("Unable to grant privileges on table <%s>"),
Fi->table);
db_begin_transaction(driver);
}
else {
driver = NULL;
}
/* init variables for lines and areas */
first_read = 1;
last_read = 0;
direction = FORWARD;
row_length = cell_head.cols;
n_rows = cell_head.rows;
row_count = 0;
if (feature == GV_LINE) {
alloc_lines_bufs(row_length + 2);
extract_lines();
}
else if (feature == GV_AREA) {
alloc_areas_bufs(row_length + 2);
extract_areas();
}
else { /* GV_POINT */
extract_points(z_flg->answer);
}
Rast_close(input_fd);
if (!no_topol->answer)
Vect_build(&Map);
/* insert cats and optionally labels if raster cats were used */
if (driver && value_flag) {
char buf[1000];
int c, i, cat, fidx, ncats, lastcat, tp, id;
fidx = Vect_cidx_get_field_index(&Map, 1);
if (fidx >= 0) {
ncats = Vect_cidx_get_num_cats_by_index(&Map, fidx);
lastcat = -1;
for (c = 0; c < ncats; c++) {
Vect_cidx_get_cat_by_index(&Map, fidx, c, &cat, &tp, &id);
if (lastcat == cat)
continue;
/* find label, slow -> TODO faster */
db_set_string(&label, "");
for (i = 0; i < RastCats.ncats; i++) {
if (cat == (int)RastCats.q.table[i].dLow) { /* cats are in dLow/High not in cLow/High !!! */
db_set_string(&label, RastCats.labels[i]);
db_double_quote_string(&label);
break;
}
}
G_debug(3, "cat = %d label = %s", cat, db_get_string(&label));
sprintf(buf, "insert into %s values ( %d, '%s')", Fi->table,
cat, db_get_string(&label));
db_set_string(&sql, buf);
G_debug(3, db_get_string(&sql));
if (db_execute_immediate(driver, &sql) != DB_OK)
G_fatal_error(_("Unable to insert into table: %s"),
db_get_string(&sql));
lastcat = cat;
}
}
}
if (has_cats)
Rast_free_cats(&RastCats);
if (driver != NULL) {
db_commit_transaction(driver);
db_close_database_shutdown_driver(driver);
}
Vect_close(&Map);
G_done_msg(" ");
exit(EXIT_SUCCESS);
}
/*!
\brief Copy a map including attribute tables
Old vector is deleted
\param in input vector map name
\param mapset mapset name
\param out output vector map name
\return -1 error
\return 0 success
*/
int Vect_copy(const char *in, const char *mapset, const char *out)
{
int i, n, ret, type;
struct Map_info In, Out;
struct field_info *Fi, *Fin;
char old_path[GPATH_MAX], new_path[GPATH_MAX], buf[GPATH_MAX];
const char *files[] = { GV_FRMT_ELEMENT, GV_COOR_ELEMENT,
GV_HEAD_ELEMENT, GV_HIST_ELEMENT,
GV_TOPO_ELEMENT, GV_SIDX_ELEMENT, GV_CIDX_ELEMENT,
NULL
};
const char *inmapset;
char xname[GNAME_MAX], xmapset[GMAPSET_MAX];
dbDriver *driver;
G_debug(2, "Copy vector '%s' in '%s' to '%s'", in, mapset, out);
/* check for [A-Za-z][A-Za-z0-9_]* in name */
if (Vect_legal_filename(out) < 0)
G_fatal_error(_("Vector map name is not SQL compliant"));
inmapset = G_find_vector2(in, mapset);
if (!inmapset) {
G_warning(_("Unable to find vector map <%s> in <%s>"), in, mapset);
return -1;
}
mapset = inmapset;
/* remove mapset from fully qualified name, confuses G_file_name() */
if (G_name_is_fully_qualified(in, xname, xmapset)) {
in = xname;
}
/* Delete old vector if it exists */
if (G_find_vector2(out, G_mapset())) {
G_warning(_("Vector map <%s> already exists and will be overwritten"),
out);
ret = Vect_delete(out);
if (ret != 0) {
G_warning(_("Unable to delete vector map <%s>"), out);
return -1;
}
}
/* Copy the directory */
G__make_mapset_element(GV_DIRECTORY);
sprintf(buf, "%s/%s", GV_DIRECTORY, out);
G__make_mapset_element(buf);
i = 0;
while (files[i]) {
sprintf(buf, "%s/%s", in, files[i]);
G_file_name(old_path, GV_DIRECTORY, buf, mapset);
sprintf(buf, "%s/%s", out, files[i]);
G_file_name(new_path, GV_DIRECTORY, buf, G_mapset());
if (access(old_path, F_OK) == 0) { /* file exists? */
G_debug(2, "copy %s to %s", old_path, new_path);
if (copy_file(old_path, new_path)) {
G_warning(_("Unable to copy vector map <%s> to <%s>"),
old_path, new_path);
}
}
i++;
}
G_file_name(old_path, GV_DIRECTORY, in, mapset);
G_file_name(new_path, GV_DIRECTORY, out, G_mapset());
/* Open input */
Vect_set_open_level(1);
Vect_open_old_head(&In, in, mapset);
if (In.format != GV_FORMAT_NATIVE) { /* Done */
Vect_close(&In);
return 0;
}
/* Open output */
Vect_set_open_level(1);
Vect_open_update_head(&Out, out, G_mapset());
/* Copy tables */
n = Vect_get_num_dblinks(&In);
type = GV_1TABLE;
if (n > 1)
type = GV_MTABLE;
for (i = 0; i < n; i++) {
Fi = Vect_get_dblink(&In, i);
if (Fi == NULL) {
G_warning(_("Database connection not defined for layer %d"),
In.dblnk->field[i].number);
Vect_close(&In);
Vect_close(&Out);
return -1;
}
Fin = Vect_default_field_info(&Out, Fi->number, Fi->name, type);
G_debug(3, "Copy drv:db:table '%s:%s:%s' to '%s:%s:%s'",
Fi->driver, Fi->database, Fi->table, Fin->driver,
Fin->database, Fin->table);
Vect_map_add_dblink(&Out, Fi->number, Fi->name, Fin->table, Fi->key,
Fin->database, Fin->driver);
ret = db_copy_table(Fi->driver, Fi->database, Fi->table,
Fin->driver, Vect_subst_var(Fin->database, &Out),
Fin->table);
if (ret == DB_FAILED) {
G_warning(_("Unable to copy table <%s>"), Fin->table);
Vect_close(&In);
Vect_close(&Out);
return -1;
}
driver =
db_start_driver_open_database(Fin->driver,
Vect_subst_var(Fin->database,
&Out));
if (driver == NULL) {
G_warning(_("Unable to open database <%s> by driver <%s>"),
Fin->database, Fin->driver);
}
else {
if (db_create_index2(driver, Fin->table, Fi->key) != DB_OK)
G_warning(_("Unable to create index for table <%s>, key <%s>"),
Fi->table, Fi->key);
db_close_database_shutdown_driver(driver);
}
}
Vect_close(&In);
Vect_close(&Out);
return 0;
}
int execute_random(struct rr_state *theState)
{
long nt;
long nc;
struct Cell_head window;
int nrows, ncols, row, col;
int infd, cinfd, outfd;
struct Map_info Out;
struct field_info *fi;
dbTable *table;
dbColumn *column;
dbString sql;
dbDriver *driver;
struct line_pnts *Points;
struct line_cats *Cats;
int cat;
RASTER_MAP_TYPE type;
int do_check;
G_get_window(&window);
nrows = Rast_window_rows();
ncols = Rast_window_cols();
/* open the data files, input raster should be set-up already */
if ((infd = theState->fd_old) < 0)
G_fatal_error(_("Unable to open raster map <%s>"),
theState->inraster);
if (theState->docover == TRUE) {
if ((cinfd = theState->fd_cold) < 0)
G_fatal_error(_("Unable to open raster map <%s>"),
theState->inrcover);
}
if (theState->outraster != NULL) {
if (theState->docover == TRUE)
type = theState->cover.type;
else
type = theState->buf.type;
outfd = Rast_open_new(theState->outraster, type);
theState->fd_new = outfd;
}
if (theState->outvector) {
if (Vect_open_new(&Out, theState->outvector, theState->z_geometry) < 0)
G_fatal_error(_("Unable to create vector map <%s>"),
theState->outvector);
Vect_hist_command(&Out);
fi = Vect_default_field_info(&Out, 1, NULL, GV_1TABLE);
driver =
db_start_driver_open_database(fi->driver,
Vect_subst_var(fi->database, &Out));
if (!driver)
G_fatal_error(_("Unable to open database <%s> by driver <%s>"),
Vect_subst_var(fi->database, &Out), fi->driver);
db_set_error_handler_driver(driver);
Vect_map_add_dblink(&Out, 1, NULL, fi->table, GV_KEY_COLUMN, fi->database,
fi->driver);
if (theState->docover == TRUE)
table = db_alloc_table(3);
else
table = db_alloc_table(2);
db_set_table_name(table, fi->table);
column = db_get_table_column(table, 0);
db_set_column_name(column, GV_KEY_COLUMN);
db_set_column_sqltype(column, DB_SQL_TYPE_INTEGER);
column = db_get_table_column(table, 1);
db_set_column_name(column, "value");
db_set_column_sqltype(column, DB_SQL_TYPE_DOUBLE_PRECISION);
if (theState->docover == TRUE) {
column = db_get_table_column(table, 2);
db_set_column_name(column, "covervalue");
db_set_column_sqltype(column, DB_SQL_TYPE_DOUBLE_PRECISION);
}
if (db_create_table(driver, table) != DB_OK)
G_warning(_("Cannot create new table"));
db_begin_transaction(driver);
Points = Vect_new_line_struct();
Cats = Vect_new_cats_struct();
db_init_string(&sql);
}
if (theState->outvector && theState->outraster)
G_message(_("Writing raster map <%s> and vector map <%s> ..."),
theState->outraster, theState->outvector);
else if (theState->outraster)
G_message(_("Writing raster map <%s> ..."), theState->outraster);
else if (theState->outvector)
G_message(_("Writing vector map <%s> ..."), theState->outvector);
G_percent(0, theState->nRand, 2);
init_rand();
nc = (theState->use_nulls) ? theState->nCells :
theState->nCells - theState->nNulls;
nt = theState->nRand; /* Number of points to generate */
cat = 1;
/* Execute for loop for every row if nt>1 */
for (row = 0; row < nrows && nt; row++) {
Rast_get_row(infd, theState->buf.data.v, row, theState->buf.type);
if (theState->docover == TRUE) {
Rast_get_row(cinfd, theState->cover.data.v, row,
theState->cover.type);
}
for (col = 0; col < ncols && nt; col++) {
do_check = 0;
if (theState->use_nulls || !is_null_value(theState->buf, col))
do_check = 1;
if (do_check && theState->docover == TRUE) { /* skip no data cover points */
if (!theState->use_nulls &&
is_null_value(theState->cover, col))
do_check = 0;
}
if (do_check && make_rand() % nc < nt) {
nt--;
if (is_null_value(theState->buf, col))
cpvalue(&theState->nulls, 0, &theState->buf, col);
if (theState->docover == TRUE) {
if (is_null_value(theState->cover, col))
cpvalue(&theState->cnulls, 0, &theState->cover, col);
}
if (theState->outvector) {
double x, y, val, coverval;
char buf[500];
Vect_reset_line(Points);
Vect_reset_cats(Cats);
x = window.west + (col + .5) * window.ew_res;
y = window.north - (row + .5) * window.ns_res;
val = cell_as_dbl(&theState->buf, col);
if (theState->docover == 1)
coverval = cell_as_dbl(&theState->cover, col);
if (theState->z_geometry)
Vect_append_point(Points, x, y, val);
else
Vect_append_point(Points, x, y, 0.0);
Vect_cat_set(Cats, 1, cat);
Vect_write_line(&Out, GV_POINT, Points, Cats);
if (theState->docover == 1)
if (is_null_value(theState->cover, col))
sprintf(buf,
"insert into %s values ( %d, %f, NULL )",
fi->table, cat, val);
else
sprintf(buf,
"insert into %s values ( %d, %f, %f )",
fi->table, cat, val, coverval);
else
sprintf(buf, "insert into %s values ( %d, %f )",
fi->table, cat, val);
db_set_string(&sql, buf);
if (db_execute_immediate(driver, &sql) != DB_OK)
G_fatal_error(_("Cannot insert new record: %s"),
db_get_string(&sql));
cat++;
}
G_percent((theState->nRand - nt), theState->nRand, 2);
}
else {
set_to_null(&theState->buf, col);
if (theState->docover == 1)
set_to_null(&theState->cover, col);
}
if (do_check)
nc--;
}
while (col < ncols) {
set_to_null(&theState->buf, col);
if (theState->docover == 1)
set_to_null(&theState->cover, col);
col++;
}
if (theState->outraster) {
if (theState->docover == 1)
Rast_put_row(outfd, theState->cover.data.v,
theState->cover.type);
else
Rast_put_row(outfd, theState->buf.data.v,
theState->buf.type);
}
}
/* Catch any remaining rows in the window */
if (theState->outraster && row < nrows) {
for (col = 0; col < ncols; col++) {
if (theState->docover == 1)
set_to_null(&theState->cover, col);
else
set_to_null(&theState->buf, col);
}
for (; row < nrows; row++) {
if (theState->docover == 1)
Rast_put_row(outfd, theState->cover.data.v,
theState->cover.type);
else
Rast_put_row(outfd, theState->buf.data.v,
theState->buf.type);
}
}
if (nt > 0)
G_warning(_("Only [%ld] random points created"),
theState->nRand - nt);
/* close files */
Rast_close(infd);
if (theState->docover == TRUE)
Rast_close(cinfd);
if (theState->outvector) {
db_commit_transaction(driver);
if (db_create_index2(driver, fi->table, GV_KEY_COLUMN) != DB_OK)
G_warning(_("Unable to create index"));
if (db_grant_on_table
(driver, fi->table, DB_PRIV_SELECT,
DB_GROUP | DB_PUBLIC) != DB_OK) {
G_fatal_error(_("Unable to grant privileges on table <%s>"),
fi->table);
}
db_close_database_shutdown_driver(driver);
if (theState->notopol != 1)
Vect_build(&Out);
Vect_close(&Out);
}
if (theState->outraster)
Rast_close(outfd);
return 0;
} /* execute_random() */
/*!
\brief Rename a map.
Attribute tables are created in the same database where input tables were stored.
The original format (native/OGR) is used.
Old map ('out') is deleted!!!
\param in input vector map name
\param out output vector map name
\return -1 error
\return 0 success
*/
int Vect_rename(const char *in, const char *out)
{
int i, n, ret, type;
struct Map_info Map;
struct field_info *Fin, *Fout;
int *fields;
dbDriver *driver;
char xname[GNAME_MAX], xmapset[GMAPSET_MAX];
G_debug(2, "Rename vector '%s' to '%s'", in, out);
/* check for [A-Za-z][A-Za-z0-9_]* in name */
if (Vect_legal_filename(out) < 0)
G_fatal_error(_("Vector map name is not SQL compliant"));
/* Delete old vector if it exists */
if (G_find_vector2(out, G_mapset())) {
G_warning(_("Vector map <%s> already exists and will be overwritten"),
out);
Vect_delete(out);
}
/* remove mapset from fully qualified name */
if (G_name_is_fully_qualified(in, xname, xmapset)) {
in = xname;
}
/* Move the directory */
ret = G_rename(GV_DIRECTORY, in, out);
if (ret == 0) {
G_warning(_("Vector map <%s> not found"), in);
return -1;
}
else if (ret == -1) {
G_warning(_("Unable to copy vector map <%s> to <%s>"), in, out);
return -1;
}
/* Rename all tables if the format is native */
Vect_set_open_level(1);
Vect_open_update_head(&Map, out, G_mapset());
if (Map.format != GV_FORMAT_NATIVE) { /* Done */
Vect_close(&Map);
return 0;
}
/* Copy tables */
n = Vect_get_num_dblinks(&Map);
type = GV_1TABLE;
if (n > 1)
type = GV_MTABLE;
/* Make the list of fields */
fields = (int *)G_malloc(n * sizeof(int));
for (i = 0; i < n; i++) {
Fin = Vect_get_dblink(&Map, i);
fields[i] = Fin->number;
}
for (i = 0; i < n; i++) {
G_debug(3, "field[%d] = %d", i, fields[i]);
Fin = Vect_get_field(&Map, fields[i]);
if (Fin == NULL) {
G_warning(_("Database connection not defined for layer %d"),
fields[i]);
Vect_close(&Map);
return -1;
}
Fout = Vect_default_field_info(&Map, Fin->number, Fin->name, type);
G_debug(3, "Copy drv:db:table '%s:%s:%s' to '%s:%s:%s'",
Fin->driver, Fin->database, Fin->table, Fout->driver,
Fout->database, Fout->table);
/* TODO: db_rename_table instead of db_copy_table */
ret = db_copy_table(Fin->driver, Fin->database, Fin->table,
Fout->driver, Vect_subst_var(Fout->database,
&Map), Fout->table);
if (ret == DB_FAILED) {
G_warning(_("Unable to copy table <%s>"), Fin->table);
Vect_close(&Map);
return -1;
}
/* Change the link */
Vect_map_del_dblink(&Map, Fin->number);
Vect_map_add_dblink(&Map, Fout->number, Fout->name, Fout->table,
Fin->key, Fout->database, Fout->driver);
/* Delete old table */
ret = db_delete_table(Fin->driver, Fin->database, Fin->table);
if (ret == DB_FAILED) {
G_warning(_("Unable to delete table <%s>"), Fin->table);
Vect_close(&Map);
return -1;
}
driver =
db_start_driver_open_database(Fout->driver,
Vect_subst_var(Fout->database,
&Map));
if (driver == NULL) {
G_warning(_("Unable to open database <%s> by driver <%s>"),
Fout->database, Fout->driver);
}
else {
if (db_create_index2(driver, Fout->table, Fin->key) != DB_OK)
G_warning(_("Unable to create index for table <%s>, key <%s>"),
Fout->table, Fout->key);
db_close_database_shutdown_driver(driver);
}
}
Vect_close(&Map);
free(fields);
return 0;
}
int main(int argc, char *argv[])
{
struct Map_info In, Out;
static struct line_pnts *Points;
struct line_cats *Cats;
struct GModule *module; /* GRASS module for parsing arguments */
struct Option *map_in, *map_out;
struct Option *cat_opt, *field_opt, *where_opt, *abcol, *afcol;
struct Option *iter_opt, *error_opt;
struct Flag *geo_f, *add_f;
int chcat, with_z;
int layer, mask_type;
struct varray *varray;
dglGraph_s *graph;
int i, geo, nnodes, nlines, j, max_cat;
char buf[2000], *covered;
/* initialize GIS environment */
G_gisinit(argv[0]); /* reads grass env, stores program name to G_program_name() */
/* initialize module */
module = G_define_module();
module->keywords = _("vector, network, centrality measures");
module->description =
_("Computes degree, centrality, betweeness, closeness and eigenvector "
"centrality measures in the network.");
/* Define the different options as defined in gis.h */
map_in = G_define_standard_option(G_OPT_V_INPUT);
field_opt = G_define_standard_option(G_OPT_V_FIELD);
map_out = G_define_standard_option(G_OPT_V_OUTPUT);
cat_opt = G_define_standard_option(G_OPT_V_CATS);
cat_opt->guisection = _("Selection");
where_opt = G_define_standard_option(G_OPT_WHERE);
where_opt->guisection = _("Selection");
afcol = G_define_standard_option(G_OPT_COLUMN);
afcol->key = "afcolumn";
afcol->required = NO;
afcol->description =
_("Name of arc forward/both direction(s) cost column");
afcol->guisection = _("Cost");
abcol = G_define_standard_option(G_OPT_COLUMN);
abcol->key = "abcolumn";
abcol->required = NO;
abcol->description = _("Name of arc backward direction cost column");
abcol->guisection = _("Cost");
deg_opt = G_define_standard_option(G_OPT_COLUMN);
deg_opt->key = "degree";
deg_opt->required = NO;
deg_opt->description = _("Name of degree centrality column");
deg_opt->guisection = _("Columns");
close_opt = G_define_standard_option(G_OPT_COLUMN);
close_opt->key = "closeness";
close_opt->required = NO;
close_opt->description = _("Name of closeness centrality column");
close_opt->guisection = _("Columns");
betw_opt = G_define_standard_option(G_OPT_COLUMN);
betw_opt->key = "betweenness";
betw_opt->required = NO;
betw_opt->description = _("Name of betweenness centrality column");
betw_opt->guisection = _("Columns");
eigen_opt = G_define_standard_option(G_OPT_COLUMN);
eigen_opt->key = "eigenvector";
eigen_opt->required = NO;
eigen_opt->description = _("Name of eigenvector centrality column");
eigen_opt->guisection = _("Columns");
iter_opt = G_define_option();
iter_opt->key = "iterations";
iter_opt->answer = "1000";
iter_opt->type = TYPE_INTEGER;
iter_opt->required = NO;
iter_opt->description =
_("Maximum number of iterations to compute eigenvector centrality");
error_opt = G_define_option();
error_opt->key = "error";
error_opt->answer = "0.1";
error_opt->type = TYPE_DOUBLE;
error_opt->required = NO;
error_opt->description =
_("Cummulative error tolerance for eigenvector centrality");
geo_f = G_define_flag();
geo_f->key = 'g';
geo_f->description =
_("Use geodesic calculation for longitude-latitude locations");
add_f = G_define_flag();
add_f->key = 'a';
add_f->description = _("Add points on nodes");
/* options and flags parser */
if (G_parser(argc, argv))
exit(EXIT_FAILURE);
/* TODO: make an option for this */
mask_type = GV_LINE | GV_BOUNDARY;
Points = Vect_new_line_struct();
Cats = Vect_new_cats_struct();
Vect_check_input_output_name(map_in->answer, map_out->answer,
GV_FATAL_EXIT);
Vect_set_open_level(2);
if (1 > Vect_open_old(&In, map_in->answer, ""))
G_fatal_error(_("Unable to open vector map <%s>"), map_in->answer);
with_z = Vect_is_3d(&In);
if (0 > Vect_open_new(&Out, map_out->answer, with_z)) {
Vect_close(&In);
G_fatal_error(_("Unable to create vector map <%s>"), map_out->answer);
}
if (geo_f->answer) {
geo = 1;
if (G_projection() != PROJECTION_LL)
G_warning(_("The current projection is not longitude-latitude"));
}
else
geo = 0;
/* parse filter option and select appropriate lines */
layer = atoi(field_opt->answer);
chcat =
(NetA_initialise_varray
(&In, layer, mask_type, where_opt->answer, cat_opt->answer,
&varray) == 1);
/* Create table */
Fi = Vect_default_field_info(&Out, 1, NULL, GV_1TABLE);
Vect_map_add_dblink(&Out, 1, NULL, Fi->table, "cat", Fi->database,
Fi->driver);
db_init_string(&sql);
driver = db_start_driver_open_database(Fi->driver, Fi->database);
if (driver == NULL)
G_fatal_error(_("Unable to open database <%s> by driver <%s>"),
Fi->database, Fi->driver);
db_init_string(&tmp);
if (deg_opt->answer)
append_string(&tmp, deg_opt->answer);
if (close_opt->answer)
append_string(&tmp, close_opt->answer);
if (betw_opt->answer)
append_string(&tmp, betw_opt->answer);
if (eigen_opt->answer)
append_string(&tmp, eigen_opt->answer);
sprintf(buf,
"create table %s(cat integer%s)", Fi->table, db_get_string(&tmp));
db_set_string(&sql, buf);
G_debug(2, db_get_string(&sql));
if (db_execute_immediate(driver, &sql) != DB_OK) {
db_close_database_shutdown_driver(driver);
G_fatal_error(_("Unable to create table: '%s'"), db_get_string(&sql));
}
if (db_create_index2(driver, Fi->table, "cat") != DB_OK)
G_warning(_("Cannot create index"));
if (db_grant_on_table
(driver, Fi->table, DB_PRIV_SELECT, DB_GROUP | DB_PUBLIC) != DB_OK)
G_fatal_error(_("Cannot grant privileges on table <%s>"), Fi->table);
db_begin_transaction(driver);
Vect_copy_head_data(&In, &Out);
Vect_hist_copy(&In, &Out);
Vect_hist_command(&Out);
Vect_net_build_graph(&In, mask_type, atoi(field_opt->answer), 0,
afcol->answer, abcol->answer, NULL, geo, 0);
graph = &(In.graph);
nnodes = dglGet_NodeCount(graph);
deg = closeness = betw = eigen = NULL;
covered = (char *)G_calloc(nnodes + 1, sizeof(char));
if (!covered)
G_fatal_error(_("Out of memory"));
if (deg_opt->answer) {
deg = (double *)G_calloc(nnodes + 1, sizeof(double));
if (!deg)
G_fatal_error(_("Out of memory"));
}
if (close_opt->answer) {
closeness = (double *)G_calloc(nnodes + 1, sizeof(double));
if (!closeness)
G_fatal_error(_("Out of memory"));
}
if (betw_opt->answer) {
betw = (double *)G_calloc(nnodes + 1, sizeof(double));
if (!betw)
G_fatal_error(_("Out of memory"));
}
if (eigen_opt->answer) {
eigen = (double *)G_calloc(nnodes + 1, sizeof(double));
if (!eigen)
G_fatal_error(_("Out of memory"));
}
if (deg_opt->answer) {
G_message(_("Computing degree centrality measure"));
NetA_degree_centrality(graph, deg);
}
if (betw_opt->answer || close_opt->answer) {
G_message(_("Computing betweenness and/or closeness centrality measure"));
NetA_betweenness_closeness(graph, betw, closeness);
if (closeness)
for (i = 1; i <= nnodes; i++)
closeness[i] /= (double)In.cost_multip;
}
if (eigen_opt->answer) {
G_message(_("Computing eigenvector centrality measure"));
NetA_eigenvector_centrality(graph, atoi(iter_opt->answer),
atof(error_opt->answer), eigen);
}
nlines = Vect_get_num_lines(&In);
G_message(_("Writing data into the table..."));
G_percent_reset();
for (i = 1; i <= nlines; i++) {
G_percent(i, nlines, 1);
int type = Vect_read_line(&In, Points, Cats, i);
if (type == GV_POINT && (!chcat || varray->c[i])) {
int cat, node;
if (!Vect_cat_get(Cats, layer, &cat))
continue;
Vect_reset_cats(Cats);
Vect_cat_set(Cats, 1, cat);
Vect_write_line(&Out, type, Points, Cats);
Vect_get_line_nodes(&In, i, &node, NULL);
process_node(node, cat);
covered[node] = 1;
}
}
if (add_f->answer && !chcat) {
max_cat = 0;
for (i = 1; i <= nlines; i++) {
Vect_read_line(&In, NULL, Cats, i);
for (j = 0; j < Cats->n_cats; j++)
if (Cats->cat[j] > max_cat)
max_cat = Cats->cat[j];
}
max_cat++;
for (i = 1; i <= nnodes; i++)
if (!covered[i]) {
Vect_reset_cats(Cats);
Vect_cat_set(Cats, 1, max_cat);
NetA_add_point_on_node(&In, &Out, i, Cats);
process_node(i, max_cat);
max_cat++;
}
}
db_commit_transaction(driver);
db_close_database_shutdown_driver(driver);
G_free(covered);
if (deg)
G_free(deg);
if (closeness)
G_free(closeness);
if (betw)
G_free(betw);
if (eigen)
G_free(eigen);
Vect_build(&Out);
Vect_close(&In);
Vect_close(&Out);
exit(EXIT_SUCCESS);
}
/*!
\brief Copy tables linked to vector map.
All if field = 0, or table defined by given field if field > 0
Notice, that if input map has no tables defined, it will copy
nothing and return 0 (success).
\param In input vector map
\param[out] Out output vector map
\param field layer number
\return 0 on success
\return -1 on error
*/
int Vect_copy_tables(const struct Map_info *In, struct Map_info *Out,
int field)
{
int i, n, ret, type;
struct field_info *Fi, *Fin;
dbDriver *driver;
n = Vect_get_num_dblinks(In);
G_debug(2, "Vect_copy_tables(): copying %d tables", n);
type = GV_1TABLE;
if (n > 1)
type = GV_MTABLE;
for (i = 0; i < n; i++) {
Fi = Vect_get_dblink(In, i);
if (Fi == NULL) {
G_warning(_("Database connection not defined for layer %d"),
In->dblnk->field[i].number);
return -1;
}
if (field > 0 && Fi->number != field)
continue;
Fin = Vect_default_field_info(Out, Fi->number, Fi->name, type);
G_debug(2, "Copy drv:db:table '%s:%s:%s' to '%s:%s:%s'",
Fi->driver, Fi->database, Fi->table, Fin->driver,
Fin->database, Fin->table);
ret =
Vect_map_add_dblink(Out, Fi->number, Fi->name, Fin->table,
Fi->key, Fin->database, Fin->driver);
if (ret == -1) {
G_warning(_("Unable to add database link for vector map <%s>"),
Out->name);
return -1;
}
ret = db_copy_table(Fi->driver, Fi->database, Fi->table,
Fin->driver, Vect_subst_var(Fin->database, Out),
Fin->table);
if (ret == DB_FAILED) {
G_warning(_("Unable to copy table <%s>"), Fin->table);
return -1;
}
driver =
db_start_driver_open_database(Fin->driver,
Vect_subst_var(Fin->database, Out));
if (driver == NULL) {
G_warning(_("Unable to open database <%s> by driver <%s>"),
Fin->database, Fin->driver);
}
else {
if (db_create_index2(driver, Fin->table, Fi->key) != DB_OK)
G_warning(_("Unable to create index for table <%s>, key <%s>"),
Fin->table, Fin->key);
db_close_database_shutdown_driver(driver);
}
}
return 0;
}
int main(int argc, char *argv[])
{
int i, cat, with_z, more, ctype, nrows;
char buf[DB_SQL_MAX];
int count;
double coor[3];
int ncoor;
struct Option *driver_opt, *database_opt, *table_opt;
struct Option *xcol_opt, *ycol_opt, *zcol_opt, *keycol_opt, *where_opt,
*outvect;
struct Flag *same_table_flag;
struct GModule *module;
struct Map_info Map;
struct line_pnts *Points;
struct line_cats *Cats;
dbString sql;
dbDriver *driver;
dbCursor cursor;
dbTable *table;
dbColumn *column;
dbValue *value;
struct field_info *fi;
G_gisinit(argv[0]);
module = G_define_module();
G_add_keyword(_("vector"));
G_add_keyword(_("import"));
G_add_keyword(_("database"));
G_add_keyword(_("points"));
module->description =
_("Creates new vector (points) map from database table containing coordinates.");
table_opt = G_define_standard_option(G_OPT_DB_TABLE);
table_opt->required = YES;
table_opt->description = _("Input table name");
driver_opt = G_define_standard_option(G_OPT_DB_DRIVER);
driver_opt->options = db_list_drivers();
driver_opt->answer = (char *)db_get_default_driver_name();
driver_opt->guisection = _("Input DB");
database_opt = G_define_standard_option(G_OPT_DB_DATABASE);
database_opt->answer = (char *)db_get_default_database_name();
database_opt->guisection = _("Input DB");
xcol_opt = G_define_standard_option(G_OPT_DB_COLUMN);
xcol_opt->key = "x";
xcol_opt->required = YES;
xcol_opt->description = _("Name of column containing x coordinate");
ycol_opt = G_define_standard_option(G_OPT_DB_COLUMN);
ycol_opt->key = "y";
ycol_opt->required = YES;
ycol_opt->description = _("Name of column containing y coordinate");
zcol_opt = G_define_standard_option(G_OPT_DB_COLUMN);
zcol_opt->key = "z";
zcol_opt->description = _("Name of column containing z coordinate");
zcol_opt->guisection = _("3D output");
keycol_opt = G_define_standard_option(G_OPT_DB_COLUMN);
keycol_opt->key = "key";
keycol_opt->required = NO;
keycol_opt->label = _("Name of column containing category number");
keycol_opt->description = _("Must refer to an integer column");
where_opt = G_define_standard_option(G_OPT_DB_WHERE);
where_opt->guisection = _("Selection");
outvect = G_define_standard_option(G_OPT_V_OUTPUT);
same_table_flag = G_define_flag();
same_table_flag->key = 't';
same_table_flag->description =
_("Use imported table as attribute table for new map");
if (G_parser(argc, argv))
exit(EXIT_FAILURE);
if (zcol_opt->answer) {
with_z = WITH_Z;
ncoor = 3;
}
else {
with_z = WITHOUT_Z;
ncoor = 2;
}
Points = Vect_new_line_struct();
Cats = Vect_new_cats_struct();
db_init_string(&sql);
if (G_get_overwrite()) {
/* We don't want to delete the input table when overwriting the output
* vector. */
char name[GNAME_MAX], mapset[GMAPSET_MAX];
if (!G_name_is_fully_qualified(outvect->answer, name, mapset)) {
strcpy(name, outvect->answer);
strcpy(mapset, G_mapset());
}
Vect_set_open_level(1); /* no topo needed */
if (strcmp(mapset, G_mapset()) == 0 && G_find_vector2(name, mapset) &&
Vect_open_old(&Map, name, mapset) >= 0) {
int num_dblinks;
num_dblinks = Vect_get_num_dblinks(&Map);
for (i = 0; i < num_dblinks; i++) {
if ((fi = Vect_get_dblink(&Map, i)) != NULL &&
strcmp(fi->driver, driver_opt->answer) == 0 &&
strcmp(fi->database, database_opt->answer) == 0 &&
strcmp(fi->table, table_opt->answer) == 0)
G_fatal_error(_("Vector map <%s> cannot be overwritten "
"because input table <%s> is linked to "
"this map."),
outvect->answer, table_opt->answer);
}
Vect_close(&Map);
}
}
if (Vect_open_new(&Map, outvect->answer, with_z) < 0)
G_fatal_error(_("Unable to create vector map <%s>"),
outvect->answer);
Vect_set_error_handler_io(NULL, &Map);
Vect_hist_command(&Map);
fi = Vect_default_field_info(&Map, 1, NULL, GV_1TABLE);
/* Open driver */
driver = db_start_driver_open_database(driver_opt->answer,
database_opt->answer);
if (driver == NULL) {
G_fatal_error(_("Unable to open database <%s> by driver <%s>"),
fi->database, fi->driver);
}
db_set_error_handler_driver(driver);
/* check if target table already exists */
G_debug(3, "Output vector table <%s>, driver: <%s>, database: <%s>",
outvect->answer, db_get_default_driver_name(),
db_get_default_database_name());
if (!same_table_flag->answer &&
db_table_exists(db_get_default_driver_name(),
db_get_default_database_name(), outvect->answer) == 1)
G_fatal_error(_("Output vector map, table <%s> (driver: <%s>, database: <%s>) "
"already exists"), outvect->answer,
db_get_default_driver_name(),
db_get_default_database_name());
if (keycol_opt->answer) {
int coltype;
coltype = db_column_Ctype(driver, table_opt->answer, keycol_opt->answer);
if (coltype == -1)
G_fatal_error(_("Column <%s> not found in table <%s>"),
keycol_opt->answer, table_opt->answer);
if (coltype != DB_C_TYPE_INT)
G_fatal_error(_("Data type of key column must be integer"));
}
else {
if (same_table_flag->answer) {
G_fatal_error(_("Option <%s> must be specified when -%c flag is given"),
keycol_opt->key, same_table_flag->key);
}
if (strcmp(db_get_default_driver_name(), "sqlite") != 0)
G_fatal_error(_("Unable to define key column. This operation is not supported "
"by <%s> driver. You need to define <%s> option."),
fi->driver, keycol_opt->key);
}
/* Open select cursor */
sprintf(buf, "SELECT %s, %s", xcol_opt->answer, ycol_opt->answer);
db_set_string(&sql, buf);
if (with_z) {
sprintf(buf, ", %s", zcol_opt->answer);
db_append_string(&sql, buf);
}
if (keycol_opt->answer) {
sprintf(buf, ", %s", keycol_opt->answer);
db_append_string(&sql, buf);
}
sprintf(buf, " FROM %s", table_opt->answer);
db_append_string(&sql, buf);
if (where_opt->answer) {
sprintf(buf, " WHERE %s", where_opt->answer);
db_append_string(&sql, buf);
}
G_debug(2, "SQL: %s", db_get_string(&sql));
if (db_open_select_cursor(driver, &sql, &cursor, DB_SEQUENTIAL) != DB_OK) {
G_fatal_error(_("Unable to open select cursor: '%s'"),
db_get_string(&sql));
}
table = db_get_cursor_table(&cursor);
nrows = db_get_num_rows(&cursor);
G_debug(2, "%d points selected", nrows);
count = cat = 0;
G_message(_("Writing features..."));
while (db_fetch(&cursor, DB_NEXT, &more) == DB_OK && more) {
G_percent(count, nrows, 2);
/* key column */
if (keycol_opt->answer) {
column = db_get_table_column(table, with_z ? 3 : 2);
ctype = db_sqltype_to_Ctype(db_get_column_sqltype(column));
if (ctype != DB_C_TYPE_INT)
G_fatal_error(_("Key column must be integer"));
value = db_get_column_value(column);
cat = db_get_value_int(value);
}
else {
cat++;
}
/* coordinates */
for (i = 0; i < ncoor; i++) {
column = db_get_table_column(table, i);
ctype = db_sqltype_to_Ctype(db_get_column_sqltype(column));
if (ctype != DB_C_TYPE_INT && ctype != DB_C_TYPE_DOUBLE)
G_fatal_error(_("x/y/z column must be integer or double"));
value = db_get_column_value(column);
if (ctype == DB_C_TYPE_INT)
coor[i] = (double)db_get_value_int(value);
else
coor[i] = db_get_value_double(value);
}
Vect_reset_line(Points);
Vect_reset_cats(Cats);
Vect_append_point(Points, coor[0], coor[1], coor[2]);
Vect_cat_set(Cats, 1, cat);
Vect_write_line(&Map, GV_POINT, Points, Cats);
count++;
}
G_percent(1, 1, 1);
/* close connection to input DB before copying attributes */
db_close_database_shutdown_driver(driver);
/* Copy table */
if (!same_table_flag->answer) {
G_message(_("Copying attributes..."));
if (DB_FAILED == db_copy_table_where(driver_opt->answer, database_opt->answer,
table_opt->answer,
fi->driver, fi->database, fi->table,
where_opt->answer)) { /* where can be NULL */
G_warning(_("Unable to copy table"));
}
else {
Vect_map_add_dblink(&Map, 1, NULL, fi->table,
keycol_opt->answer ? keycol_opt->answer : GV_KEY_COLUMN,
fi->database, fi->driver);
}
if (!keycol_opt->answer) {
/* TODO: implement for all DB drivers in generic way if
* possible */
driver = db_start_driver_open_database(fi->driver, fi->database);
if (driver == NULL) {
G_fatal_error(_("Unable to open database <%s> by driver <%s>"),
fi->database, fi->driver);
}
db_set_error_handler_driver(driver);
/* add key column */
sprintf(buf, "ALTER TABLE %s ADD COLUMN %s INTEGER",
fi->table, GV_KEY_COLUMN);
db_set_string(&sql, buf);
if (db_execute_immediate(driver, &sql) != DB_OK) {
G_fatal_error(_("Unable to add key column <%s>: "
"SERIAL type is not supported by <%s>"),
GV_KEY_COLUMN, fi->driver);
}
/* update key column */
sprintf(buf, "UPDATE %s SET %s = _ROWID_",
fi->table, GV_KEY_COLUMN);
db_set_string(&sql, buf);
if (db_execute_immediate(driver, &sql) != DB_OK) {
G_fatal_error(_("Failed to update key column <%s>"),
GV_KEY_COLUMN);
}
}
}
else {
/* do not copy attributes, link original table */
Vect_map_add_dblink(&Map, 1, NULL, table_opt->answer,
keycol_opt->answer ? keycol_opt->answer : GV_KEY_COLUMN,
database_opt->answer, driver_opt->answer);
}
Vect_build(&Map);
Vect_close(&Map);
G_done_msg(_n("%d point written to vector map.",
"%d points written to vector map.",
count), count);
return (EXIT_SUCCESS);
}
void copy_tabs(struct Map_info *In, struct Map_info *Out,
int nfields, int *fields, int *ncats, int **cats)
{
int i, ttype, ntabs;
struct field_info *IFi, *OFi;
ntabs = 0;
G_message(_("Writing attributes..."));
/* Number of output tabs */
for (i = 0; i < Vect_get_num_dblinks(In); i++) {
int f, j;
IFi = Vect_get_dblink(In, i);
for (j = 0; j < nfields; j++) { /* find field */
if (fields[j] == IFi->number) {
f = j;
break;
}
}
if (ncats[f] > 0)
ntabs++;
}
if (ntabs > 1)
ttype = GV_MTABLE;
else
ttype = GV_1TABLE;
for (i = 0; i < nfields; i++) {
int ret;
if (fields[i] == 0)
continue;
/* Make a list of categories */
IFi = Vect_get_field(In, fields[i]);
if (!IFi) { /* no table */
G_warning(_("No table for layer %d"), fields[i]);
continue;
}
OFi =
Vect_default_field_info(Out, IFi->number, IFi->name, ttype);
ret =
db_copy_table_by_ints(IFi->driver, IFi->database, IFi->table,
OFi->driver,
Vect_subst_var(OFi->database, Out),
OFi->table, IFi->key, cats[i],
ncats[i]);
if (ret == DB_FAILED) {
G_warning(_("Unable to copy table for layer %d"), fields[i]);
}
else {
Vect_map_add_dblink(Out, OFi->number, OFi->name, OFi->table,
IFi->key, OFi->database, OFi->driver);
}
}
}