int get_range(const char *name, long *min, long *max)
{
struct Range range;
int nrows, ncols, row, col;
CELL *cell;
int fd;
CELL cmin, cmax;
struct Cell_head cellhd;
if (Rast_read_range(name, "", &range) < 0) {
Rast_init_range(&range); /* read the file to get the range */
Rast_get_cellhd(name, "", &cellhd);
Rast_set_window(&cellhd);
cell = Rast_allocate_c_buf();
fd = Rast_open_old(name, "");
nrows = Rast_window_rows();
ncols = Rast_window_cols();
G_message(_("Reading %s ..."), name);
for (row = 0; row < nrows; row++) {
G_percent(row, nrows, 2);
Rast_get_c_row_nomask(fd, cell, row);
for (col = 0; col < ncols; col++)
Rast_update_range(cell[col], &range);
}
G_percent(row, nrows, 2);
Rast_close(fd);
G_free(cell);
}
Rast_get_range_min_max(&range, &cmin, &cmax);
*min = cmin;
*max = cmax;
return 0;
}
int open_map(MAPS* rast) {
int row, col;
int fd;
char* mapset;
struct Cell_head cellhd;
int bufsize;
void* tmp_buf;
mapset = (char*)G_find_raster2(rast->elevname, "");
if (mapset == NULL)
G_fatal_error(_("Raster map <%s> not found"), rast->elevname);
rast->fd = Rast_open_old(rast->elevname, mapset);
Rast_get_cellhd(rast->elevname, mapset, &cellhd);
rast->raster_type = Rast_map_type(rast->elevname, mapset);
if (window.ew_res < cellhd.ew_res || window.ns_res < cellhd.ns_res)
G_warning(_("Region resolution shoudn't be lesser than map %s resolution. Run g.region rast=%s to set proper resolution"),
rast->elevname, rast->elevname);
tmp_buf=Rast_allocate_buf(rast->raster_type);
rast->elev = (FCELL**) G_malloc((row_buffer_size+1) * sizeof(FCELL*));
for (row = 0; row < row_buffer_size+1; ++row) {
rast->elev[row] = Rast_allocate_buf(FCELL_TYPE);
Rast_get_row(rast->fd, tmp_buf,row, rast->raster_type);
for (col=0;col<ncols;++col)
get_cell(col, rast->elev[row], tmp_buf, rast->raster_type);
} /* end elev */
G_free(tmp_buf);
return 0;
}
int get_stats(const char *name, struct Cell_stats *statf)
{
int fd;
CELL *cell;
int row, nrows, ncols;
fd = Rast_open_old(name, "");
nrows = Rast_window_rows();
ncols = Rast_window_cols();
cell = Rast_allocate_c_buf();
Rast_init_cell_stats(statf);
G_message(_("Reading %s ..."), name);
for (row = 0; row < nrows; row++) {
G_percent(row, nrows, 2);
Rast_get_c_row(fd, cell, row);
Rast_update_cell_stats(cell, ncols, statf);
}
if (row < nrows)
exit(1);
Rast_close(fd);
G_free(cell);
G_percent(row, nrows, 2);
return 0;
}
int cseg_read_cell(CSEG * cseg, char *map_name, char *mapset)
{
GW_LARGE_INT row, nrows;
int map_fd;
CELL *buffer;
cseg->name = NULL;
cseg->mapset = NULL;
map_fd = Rast_open_old(map_name, mapset);
nrows = Rast_window_rows();
buffer = Rast_allocate_c_buf();
for (row = 0; row < nrows; row++) {
Rast_get_c_row(map_fd, buffer, row);
if (Segment_put_row(&(cseg->seg), buffer, row) < 0) {
G_free(buffer);
Rast_close(map_fd);
G_warning("%s(): unable to segment put row for [%s] in [%s]",
me, map_name, mapset);
return (-1);
}
}
Rast_close(map_fd);
G_free(buffer);
cseg->name = G_store(map_name);
cseg->mapset = G_store(mapset);
return 0;
}
/* ************************************************************************* */
int open_input_map(const char *name, const char *mapset)
{
G_debug(3, "Open raster file %s in mapset %s", name, mapset);
/* open raster map */
return Rast_open_old(name, mapset);
}
int distdrop ( cell_map *elev,
cell_map *dist, cell_map *dir,
cell_map *up, cell_map *dw,
seg_map *segment_info, move *movements,
queue **redo_segments)
{
int all_done = 1;
int **neighbours = new_int_map ( ( int ) sizeof ( movements ),
( int ) sizeof ( movements[0] ), NULL );
elev->fd = Rast_open_old ( elev->name, "" );
elev->type = Rast_get_map_type( elev->fd );
init_seg_map(elev, segment_info);
copy_segment(elev, 0);
//print_map_with_seg ( elev, segment_info );
while ( all_done ){ // if all_done != 0? continue: break
all_done = queue_pixel ( redo_segments, elev, dist,
dir, up, dw, segment_info,
movements, neighbours);
}
return 0;
}
void openfiles(char *r_name, char *g_name, char *b_name,
char *h_name, char *i_name, char *s_name,
int fd_input[3], int fd_output[3], CELL * rowbuf[3])
{
fd_input[0] = Rast_open_old(r_name, "");
fd_input[1] = Rast_open_old(g_name, "");
fd_input[2] = Rast_open_old(b_name, "");
/* open output files */
fd_output[0] = Rast_open_c_new(h_name);
fd_output[1] = Rast_open_c_new(i_name);
fd_output[2] = Rast_open_c_new(s_name);
/* allocate the cell row buffer */
rowbuf[0] = Rast_allocate_c_buf();
rowbuf[1] = Rast_allocate_c_buf();
rowbuf[2] = Rast_allocate_c_buf();
}
void openfiles(char *h_name, char *i_name, char *s_name,
char *r_name, char *g_name, char *b_name,
int fd_input[3], int fd_output[3], CELL * rowbuf[3])
{
/* open output files */
fd_output[0] = Rast_open_c_new(r_name);
fd_output[1] = Rast_open_c_new(g_name);
fd_output[2] = Rast_open_c_new(b_name);
/* allocate the cell row buffer */
rowbuf[0] = Rast_allocate_c_buf();
rowbuf[1] = Rast_allocate_c_buf();
rowbuf[2] = Rast_allocate_c_buf();
/* open input files (maps can be in different mapsets) */
fd_input[0] = Rast_open_old(h_name, "");
fd_input[1] = Rast_open_old(i_name, "");
fd_input[2] = Rast_open_old(s_name, "");
}
/*!
\brief Load raster map as integer map
Calling function must have already allocated space in buff for
struct BM of wind->rows & wind->cols.
This routine simply loads the map into the bitmap by repetitve calls
to get_map_row. Any value other than 0 in the map will set the bitmap.
(may want to change later to allow specific value to set)
Changed to use null.
\param wind current window
\param map_name raster map name
\param[out] buff data buffer
\returns 1 on success
\return -1 on failure
*/
int Gs_loadmap_as_bitmap(struct Cell_head *wind, const char *map_name,
struct BM *buff)
{
FILEDESC cellfile;
const char *map_set;
int *tmp_buf;
int row, col;
G_debug(3, "Gs_loadmap_as_bitmap");
map_set = G_find_raster2(map_name, "");
if (!map_set) {
G_warning(_("Raster map <%s> not found"), map_name);
return -1;
}
cellfile = Rast_open_old(map_name, map_set);
tmp_buf = (int *)G_malloc(wind->cols * sizeof(int)); /* G_fatal_error */
if (!tmp_buf) {
return -1;
}
G_message(_("Loading raster map <%s>..."),
G_fully_qualified_name(map_name, map_set));
for (row = 0; row < wind->rows; row++) {
Rast_get_c_row(cellfile, tmp_buf, row);
for (col = 0; col < wind->cols; col++) {
if (Rast_is_c_null_value(&tmp_buf[col])) {
/* no data */
BM_set(buff, col, row, 1);
}
else {
BM_set(buff, col, row, 0);
}
}
}
Rast_close(cellfile);
G_free(tmp_buf);
return (1);
}
/*!
\brief Load raster map as floating point map
Calling function must have already allocated space in buff for
wind->rows * wind->cols floats.
This routine simply loads the map into a 2d array by repetitve calls
to get_f_raster_row.
\param wind current window
\param map_name raster map name
\param[out] buff data buffer
\param[out] nullmap null map buffer
\param[out] has_null indicates if raster map contains null-data
\return 1 on success
\return 0 on failure
*/
int Gs_loadmap_as_float(struct Cell_head *wind, const char *map_name,
float *buff, struct BM *nullmap, int *has_null)
{
FILEDESC cellfile;
const char *map_set;
int offset, row, col;
G_debug(3, "Gs_loadmap_as_float(): name=%s", map_name);
map_set = G_find_raster2(map_name, "");
if (!map_set) {
G_warning(_("Raster map <%s> not found"), map_name);
return 0;
}
*has_null = 0;
cellfile = Rast_open_old(map_name, map_set);
G_message(_("Loading raster map <%s>..."),
G_fully_qualified_name(map_name, map_set));
for (row = 0; row < wind->rows; row++) {
offset = row * wind->cols;
Rast_get_f_row(cellfile, &(buff[offset]), row);
G_percent(row, wind->rows, 2);
for (col = 0; col < wind->cols; col++) {
if (Rast_is_f_null_value(buff + offset + col)) {
*has_null = 1;
BM_set(nullmap, col, row, 1);
}
/* set nm */
}
}
G_percent(1, 1, 1);
G_debug(4, " has_null=%d", *has_null);
Rast_close(cellfile);
return (1);
}
/*!
\brief Open and allocate space for the group band files.
\param refer pointer to band files structure
\param[out] band_buffer buffer to read one row of each band
\param[out] band_fd band files descriptors
*/
void open_band_files(struct Ref *refer, CELL *** band_buffer, int **band_fd)
{
int n, nbands;
char *name, *mapset;
G_debug(3, "open_band_files()");
/* allocate row buffers and open raster maps */
nbands = refer->nfiles;
*band_buffer = (CELL **) G_malloc(nbands * sizeof(CELL *));
*band_fd = (int *)G_malloc(nbands * sizeof(int));
for (n = 0; n < nbands; n++) {
(*band_buffer)[n] = Rast_allocate_c_buf();
name = refer->file[n].name;
mapset = refer->file[n].mapset;
(*band_fd)[n] = Rast_open_old(name, mapset);
}
}
void rast_segment_open(SEGMENT * segment, const char *name,
RASTER_MAP_TYPE * map_type)
{
/* TODO: check if not passing the mapset is OK */
int rowio = Rast_open_old(name, "");
*map_type = Rast_get_map_type(rowio);
int segment_rows = 64;
/* we use long segments because this is how the values a binned */
int segment_cols = Rast_input_window_cols();
int segments_in_memory = 4;
if (Segment_open(segment, G_tempfile(), Rast_input_window_rows(),
Rast_input_window_cols(), segment_rows, segment_cols,
Rast_cell_size(*map_type), segments_in_memory) != 1)
G_fatal_error(_("Cannot create temporary file with segments of a raster map"));
rast_segment_load(segment, rowio, *map_type);
Rast_close(rowio); /* we won't need the raster again */
}
int get_cats(const char *name, const char *mapset)
{
int fd;
int row, nrows, ncols;
CELL *cell;
struct Cell_head cellhd;
/* set the window to the cell header */
Rast_get_cellhd(name, mapset, &cellhd);
Rast_set_window(&cellhd);
/* open the raster map */
fd = Rast_open_old(name, mapset);
nrows = Rast_window_rows();
ncols = Rast_window_cols();
cell = Rast_allocate_c_buf();
Rast_init_cell_stats(&statf);
/* read the raster map */
G_verbose_message(_("Reading <%s> in <%s>"), name, mapset);
for (row = 0; row < nrows; row++) {
if (G_verbose() > G_verbose_std())
G_percent(row, nrows, 2);
Rast_get_c_row_nomask(fd, cell, row);
Rast_update_cell_stats(cell, ncols, &statf);
}
/* done */
if (G_verbose() > G_verbose_std())
G_percent(row, nrows, 2);
Rast_close(fd);
G_free(cell);
Rast_rewind_cell_stats(&statf);
return 0;
}
/*
* do_histogram() - Creates histogram for CELL
*
* RETURN: EXIT_SUCCESS / EXIT_FAILURE
*/
int do_histogram(const char *name)
{
CELL *cell;
struct Cell_head cellhd;
struct Cell_stats statf;
int nrows, ncols;
int row;
int fd;
Rast_get_cellhd(name, "", &cellhd);
Rast_set_window(&cellhd);
fd = Rast_open_old(name, "");
nrows = Rast_window_rows();
ncols = Rast_window_cols();
cell = Rast_allocate_c_buf();
Rast_init_cell_stats(&statf);
for (row = 0; row < nrows; row++) {
Rast_get_c_row_nomask(fd, cell, row);
Rast_update_cell_stats(cell, ncols, &statf);
}
if (row == nrows)
Rast_write_histogram_cs(name, &statf);
Rast_free_cell_stats(&statf);
Rast_close(fd);
G_free(cell);
if (row < nrows)
return -1;
return 0;
}
int camera_angle(char *name)
{
int row, col, nrows, ncols;
double XC = group.XC;
double YC = group.YC;
double ZC = group.ZC;
double c_angle, c_angle_min, c_alt, c_az, slope, aspect;
double radians_to_degrees = 180.0 / M_PI;
/* double degrees_to_radians = M_PI / 180.0; */
DCELL e1, e2, e3, e4, e5, e6, e7, e8, e9;
double factor, V, H, dx, dy, dz, key;
double north, south, east, west, ns_med;
FCELL *fbuf0, *fbuf1, *fbuf2, *tmpbuf, *outbuf;
int elevfd, outfd;
struct Cell_head cellhd;
struct Colors colr;
FCELL clr_min, clr_max;
struct History hist;
char *type;
G_message(_("Calculating camera angle to local surface..."));
select_target_env();
/* align target window to elevation map, otherwise we get artefacts
* like in r.slope.aspect -a */
Rast_get_cellhd(elev_name, elev_mapset, &cellhd);
Rast_align_window(&target_window, &cellhd);
Rast_set_window(&target_window);
elevfd = Rast_open_old(elev_name, elev_mapset);
if (elevfd < 0) {
G_fatal_error(_("Could not open elevation raster"));
return 1;
}
nrows = target_window.rows;
ncols = target_window.cols;
outfd = Rast_open_new(name, FCELL_TYPE);
fbuf0 = Rast_allocate_buf(FCELL_TYPE);
fbuf1 = Rast_allocate_buf(FCELL_TYPE);
fbuf2 = Rast_allocate_buf(FCELL_TYPE);
outbuf = Rast_allocate_buf(FCELL_TYPE);
/* give warning if location units are different from meters and zfactor=1 */
factor = G_database_units_to_meters_factor();
if (factor != 1.0)
G_warning(_("Converting units to meters, factor=%.6f"), factor);
G_begin_distance_calculations();
north = Rast_row_to_northing(0.5, &target_window);
ns_med = Rast_row_to_northing(1.5, &target_window);
south = Rast_row_to_northing(2.5, &target_window);
east = Rast_col_to_easting(2.5, &target_window);
west = Rast_col_to_easting(0.5, &target_window);
V = G_distance(east, north, east, south) * 4;
H = G_distance(east, ns_med, west, ns_med) * 4;
c_angle_min = 90;
Rast_get_row(elevfd, fbuf1, 0, FCELL_TYPE);
Rast_get_row(elevfd, fbuf2, 1, FCELL_TYPE);
for (row = 0; row < nrows; row++) {
G_percent(row, nrows, 2);
Rast_set_null_value(outbuf, ncols, FCELL_TYPE);
/* first and last row */
if (row == 0 || row == nrows - 1) {
Rast_put_row(outfd, outbuf, FCELL_TYPE);
continue;
}
tmpbuf = fbuf0;
fbuf0 = fbuf1;
fbuf1 = fbuf2;
fbuf2 = tmpbuf;
Rast_get_row(elevfd, fbuf2, row + 1, FCELL_TYPE);
north = Rast_row_to_northing(row + 0.5, &target_window);
for (col = 1; col < ncols - 1; col++) {
e1 = fbuf0[col - 1];
if (Rast_is_d_null_value(&e1))
continue;
e2 = fbuf0[col];
if (Rast_is_d_null_value(&e2))
continue;
e3 = fbuf0[col + 1];
if (Rast_is_d_null_value(&e3))
continue;
e4 = fbuf1[col - 1];
if (Rast_is_d_null_value(&e4))
continue;
e5 = fbuf1[col];
if (Rast_is_d_null_value(&e5))
continue;
e6 = fbuf1[col + 1];
if (Rast_is_d_null_value(&e6))
continue;
e7 = fbuf2[col - 1];
if (Rast_is_d_null_value(&e7))
continue;
e8 = fbuf2[col];
if (Rast_is_d_null_value(&e8))
continue;
e9 = fbuf2[col + 1];
if (Rast_is_d_null_value(&e9))
continue;
dx = ((e1 + e4 + e4 + e7) - (e3 + e6 + e6 + e9)) / H;
dy = ((e7 + e8 + e8 + e9) - (e1 + e2 + e2 + e3)) / V;
/* compute topographic parameters */
key = dx * dx + dy * dy;
/* slope in radians */
slope = atan(sqrt(key));
/* aspect in radians */
if (key == 0.)
aspect = 0.;
else if (dx == 0) {
if (dy > 0)
aspect = M_PI / 2;
else
aspect = 1.5 * M_PI;
}
else {
aspect = atan2(dy, dx);
if (aspect <= 0.)
aspect = 2 * M_PI + aspect;
}
/* camera altitude angle in radians */
east = Rast_col_to_easting(col + 0.5, &target_window);
dx = east - XC;
dy = north - YC;
dz = ZC - e5;
c_alt = atan(sqrt(dx * dx + dy * dy) / dz);
/* camera azimuth angle in radians */
c_az = atan(dy / dx);
if (east < XC && north != YC)
c_az += M_PI;
else if (north < YC && east > XC)
c_az += 2 * M_PI;
/* camera angle to real ground */
/* orthogonal to ground: 90 degrees */
/* parallel to ground: 0 degrees */
c_angle = asin(cos(c_alt) * cos(slope) - sin(c_alt) * sin(slope) * cos(c_az - aspect));
outbuf[col] = c_angle * radians_to_degrees;
if (c_angle_min > outbuf[col])
c_angle_min = outbuf[col];
}
Rast_put_row(outfd, outbuf, FCELL_TYPE);
}
G_percent(row, nrows, 2);
Rast_close(elevfd);
Rast_close(outfd);
G_free(fbuf0);
G_free(fbuf1);
G_free(fbuf2);
G_free(outbuf);
type = "raster";
Rast_short_history(name, type, &hist);
Rast_command_history(&hist);
Rast_write_history(name, &hist);
Rast_init_colors(&colr);
if (c_angle_min < 0) {
clr_min = (FCELL)((int)(c_angle_min / 10 - 1)) * 10;
clr_max = 0;
Rast_add_f_color_rule(&clr_min, 0, 0, 0, &clr_max, 0,
0, 0, &colr);
}
clr_min = 0;
clr_max = 10;
Rast_add_f_color_rule(&clr_min, 0, 0, 0, &clr_max, 255,
0, 0, &colr);
clr_min = 10;
clr_max = 40;
Rast_add_f_color_rule(&clr_min, 255, 0, 0, &clr_max, 255,
255, 0, &colr);
clr_min = 40;
clr_max = 90;
Rast_add_f_color_rule(&clr_min, 255, 255, 0, &clr_max, 0,
255, 0, &colr);
Rast_write_colors(name, G_mapset(), &colr);
select_current_env();
return 1;
}
int main(int argc, char *argv[])
{
int i, j, nlines, type, field, cat;
int fd;
/* struct Categories RCats; *//* TODO */
struct Cell_head window;
RASTER_MAP_TYPE out_type;
CELL *cell;
DCELL *dcell;
double drow, dcol;
char buf[2000];
struct Option *vect_opt, *rast_opt, *field_opt, *col_opt, *where_opt;
int Cache_size;
struct order *cache;
int cur_row;
struct GModule *module;
struct Map_info Map;
struct line_pnts *Points;
struct line_cats *Cats;
int point;
int point_cnt; /* number of points in cache */
int outside_cnt; /* points outside region */
int nocat_cnt; /* points inside region but without category */
int dupl_cnt; /* duplicate categories */
struct bound_box box;
int *catexst, *cex;
struct field_info *Fi;
dbString stmt;
dbDriver *driver;
int select, norec_cnt, update_cnt, upderr_cnt, col_type;
G_gisinit(argv[0]);
module = G_define_module();
G_add_keyword(_("vector"));
G_add_keyword(_("raster"));
G_add_keyword(_("position"));
G_add_keyword(_("querying"));
G_add_keyword(_("attribute table"));
module->description =
_("Uploads raster values at positions of vector points to the table.");
vect_opt = G_define_standard_option(G_OPT_V_INPUT);
vect_opt->key = "vector";
vect_opt->description =
_("Name of input vector points map for which to edit attribute table");
rast_opt = G_define_standard_option(G_OPT_R_INPUT);
rast_opt->key = "raster";
rast_opt->description = _("Name of existing raster map to be queried");
field_opt = G_define_standard_option(G_OPT_V_FIELD);
col_opt = G_define_option();
col_opt->key = "column";
col_opt->type = TYPE_STRING;
col_opt->required = YES;
col_opt->description =
_("Column name (will be updated by raster values)");
where_opt = G_define_standard_option(G_OPT_DB_WHERE);
if (G_parser(argc, argv))
exit(EXIT_FAILURE);
field = atoi(field_opt->answer);
db_init_string(&stmt);
Points = Vect_new_line_struct();
Cats = Vect_new_cats_struct();
G_get_window(&window);
Vect_region_box(&window, &box); /* T and B set to +/- PORT_DOUBLE_MAX */
/* Open vector */
Vect_set_open_level(2);
Vect_open_old(&Map, vect_opt->answer, "");
Fi = Vect_get_field(&Map, field);
if (Fi == NULL)
G_fatal_error(_("Database connection not defined for layer %d"),
field);
/* 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);
}
/* Open raster */
fd = Rast_open_old(rast_opt->answer, "");
out_type = Rast_get_map_type(fd);
/* TODO: Later possibly category labels */
/*
if ( Rast_read_cats (name, "", &RCats) < 0 )
G_fatal_error ( "Cannot read category file");
*/
/* Check column type */
col_type = db_column_Ctype(driver, Fi->table, col_opt->answer);
if (col_type == -1)
G_fatal_error(_("Column <%s> not found"), col_opt->answer);
if (col_type != DB_C_TYPE_INT && col_type != DB_C_TYPE_DOUBLE)
G_fatal_error(_("Column type not supported"));
if (out_type == CELL_TYPE && col_type == DB_C_TYPE_DOUBLE)
G_warning(_("Raster type is integer and column type is float"));
if (out_type != CELL_TYPE && col_type == DB_C_TYPE_INT)
G_warning(_("Raster type is float and column type is integer, some data lost!!"));
/* Read vector points to cache */
Cache_size = Vect_get_num_primitives(&Map, GV_POINT);
/* Note: Some space may be wasted (outside region or no category) */
cache = (struct order *)G_calloc(Cache_size, sizeof(struct order));
point_cnt = outside_cnt = nocat_cnt = 0;
nlines = Vect_get_num_lines(&Map);
G_debug(1, "Reading %d vector features fom map", nlines);
for (i = 1; i <= nlines; i++) {
type = Vect_read_line(&Map, Points, Cats, i);
G_debug(4, "line = %d type = %d", i, type);
/* check type */
if (!(type & GV_POINT))
continue; /* Points only */
/* check region */
if (!Vect_point_in_box(Points->x[0], Points->y[0], 0.0, &box)) {
outside_cnt++;
continue;
}
Vect_cat_get(Cats, field, &cat);
if (cat < 0) { /* no category of given field */
nocat_cnt++;
continue;
}
G_debug(4, " cat = %d", cat);
/* Add point to cache */
drow = Rast_northing_to_row(Points->y[0], &window);
dcol = Rast_easting_to_col(Points->x[0], &window);
/* a special case.
* if north falls at southern edge, or east falls on eastern edge,
* the point will appear outside the window.
* So, for these edges, bring the point inside the window
*/
if (drow == window.rows)
drow--;
if (dcol == window.cols)
dcol--;
cache[point_cnt].row = (int)drow;
cache[point_cnt].col = (int)dcol;
cache[point_cnt].cat = cat;
cache[point_cnt].count = 1;
point_cnt++;
}
Vect_set_db_updated(&Map);
Vect_hist_command(&Map);
Vect_close(&Map);
G_debug(1, "Read %d vector points", point_cnt);
/* Cache may contain duplicate categories, sort by cat, find and remove duplicates
* and recalc count and decrease point_cnt */
qsort(cache, point_cnt, sizeof(struct order), by_cat);
G_debug(1, "Points are sorted, starting duplicate removal loop");
for (i = 0, j = 1; j < point_cnt; j++)
if (cache[i].cat != cache[j].cat)
cache[++i] = cache[j];
else
cache[i].count++;
point_cnt = i + 1;
G_debug(1, "%d vector points left after removal of duplicates",
point_cnt);
/* Report number of points not used */
if (outside_cnt)
G_warning(_("%d points outside current region were skipped"),
outside_cnt);
if (nocat_cnt)
G_warning(_("%d points without category were skipped"), nocat_cnt);
/* Sort cache by current region row */
qsort(cache, point_cnt, sizeof(struct order), by_row);
/* Allocate space for raster row */
if (out_type == CELL_TYPE)
cell = Rast_allocate_c_buf();
else
dcell = Rast_allocate_d_buf();
/* Extract raster values from file and store in cache */
G_debug(1, "Extracting raster values");
cur_row = -1;
for (point = 0; point < point_cnt; point++) {
if (cache[point].count > 1)
continue; /* duplicate cats */
if (cur_row != cache[point].row) {
if (out_type == CELL_TYPE)
Rast_get_c_row(fd, cell, cache[point].row);
else
Rast_get_d_row(fd, dcell, cache[point].row);
}
cur_row = cache[point].row;
if (out_type == CELL_TYPE) {
cache[point].value = cell[cache[point].col];
}
else {
cache[point].dvalue = dcell[cache[point].col];
}
} /* point loop */
/* Update table from cache */
G_debug(1, "Updating db table");
/* select existing categories to array (array is sorted) */
select = db_select_int(driver, Fi->table, Fi->key, NULL, &catexst);
db_begin_transaction(driver);
norec_cnt = update_cnt = upderr_cnt = dupl_cnt = 0;
for (point = 0; point < point_cnt; point++) {
if (cache[point].count > 1) {
G_warning(_("More points (%d) of category %d, value set to 'NULL'"),
cache[point].count, cache[point].cat);
dupl_cnt++;
}
/* category exist in DB ? */
cex =
(int *)bsearch((void *)&(cache[point].cat), catexst, select,
sizeof(int), srch_cat);
if (cex == NULL) { /* cat does not exist in DB */
norec_cnt++;
G_warning(_("No record for category %d in table <%s>"),
cache[point].cat, Fi->table);
continue;
}
sprintf(buf, "update %s set %s = ", Fi->table, col_opt->answer);
db_set_string(&stmt, buf);
if (out_type == CELL_TYPE) {
if (cache[point].count > 1 ||
Rast_is_c_null_value(&cache[point].value)) {
sprintf(buf, "NULL");
}
else {
sprintf(buf, "%d ", cache[point].value);
}
}
else { /* FCELL or DCELL */
if (cache[point].count > 1 ||
Rast_is_d_null_value(&cache[point].dvalue)) {
sprintf(buf, "NULL");
}
else {
sprintf(buf, "%.10f", cache[point].dvalue);
}
}
db_append_string(&stmt, buf);
sprintf(buf, " where %s = %d", Fi->key, cache[point].cat);
db_append_string(&stmt, buf);
/* user provides where condition: */
if (where_opt->answer) {
sprintf(buf, " AND %s", where_opt->answer);
db_append_string(&stmt, buf);
}
G_debug(3, db_get_string(&stmt));
/* Update table */
if (db_execute_immediate(driver, &stmt) == DB_OK) {
update_cnt++;
}
else {
upderr_cnt++;
}
}
G_debug(1, "Committing DB transaction");
db_commit_transaction(driver);
G_free(catexst);
db_close_database_shutdown_driver(driver);
db_free_string(&stmt);
/* Report */
G_message(_("%d categories loaded from table"), select);
G_message(_("%d categories loaded from vector"), point_cnt);
G_message(_("%d categories from vector missing in table"), norec_cnt);
G_message(_("%d duplicate categories in vector"), dupl_cnt);
if (!where_opt->answer)
G_message(_("%d records updated"), update_cnt);
G_message(_("%d update errors"), upderr_cnt);
exit(EXIT_SUCCESS);
}
int main(int argc, char **argv)
{
struct Cell_head window;
RASTER_MAP_TYPE raster_type, mag_raster_type = -1;
int layer_fd;
void *raster_row, *ptr;
int nrows, ncols;
int aspect_c = -1;
float aspect_f = -1.0;
double scale;
int skip, no_arrow;
char *mag_map = NULL;
void *mag_raster_row = NULL, *mag_ptr = NULL;
double length = -1;
int mag_fd = -1;
struct FPRange range;
double mag_min, mag_max;
struct GModule *module;
struct Option *opt1, *opt2, *opt3, *opt4, *opt5,
*opt6, *opt7, *opt8, *opt9;
struct Flag *align;
double t, b, l, r;
G_gisinit(argv[0]);
module = G_define_module();
G_add_keyword(_("display"));
G_add_keyword(_("raster"));
module->description =
_("Draws arrows representing cell aspect direction "
"for a raster map containing aspect data.");
opt1 = G_define_standard_option(G_OPT_R_MAP);
opt1->description = _("Name of raster aspect map to be displayed");
opt2 = G_define_option();
opt2->key = "type";
opt2->type = TYPE_STRING;
opt2->required = NO;
opt2->answer = "grass";
opt2->options = "grass,compass,agnps,answers";
opt2->description = _("Type of existing raster aspect map");
opt3 = G_define_option();
opt3->key = "arrow_color";
opt3->type = TYPE_STRING;
opt3->required = NO;
opt3->answer = "green";
opt3->gisprompt = "old_color,color,color";
opt3->description = _("Color for drawing arrows");
opt3->guisection = _("Colors");
opt4 = G_define_option();
opt4->key = "grid_color";
opt4->type = TYPE_STRING;
opt4->required = NO;
opt4->answer = "gray";
opt4->gisprompt = "old_color,color,color_none";
opt4->description = _("Color for drawing grid or \"none\"");
opt4->guisection = _("Colors");
opt5 = G_define_option();
opt5->key = "x_color";
opt5->type = TYPE_STRING;
opt5->required = NO;
opt5->answer = DEFAULT_FG_COLOR;
opt5->gisprompt = "old_color,color,color_none";
opt5->description = _("Color for drawing X's (null values)");
opt5->guisection = _("Colors");
opt6 = G_define_option();
opt6->key = "unknown_color";
opt6->type = TYPE_STRING;
opt6->required = NO;
opt6->answer = "red";
opt6->gisprompt = "old_color,color,color_none";
opt6->description = _("Color for showing unknown information");
opt6->guisection = _("Colors");
opt9 = G_define_option();
opt9->key = "skip";
opt9->type = TYPE_INTEGER;
opt9->required = NO;
opt9->answer = "1";
opt9->description = _("Draw arrow every Nth grid cell");
opt7 = G_define_option();
opt7->key = "magnitude_map";
opt7->type = TYPE_STRING;
opt7->required = NO;
opt7->multiple = NO;
opt7->gisprompt = "old,cell,raster";
opt7->description =
_("Raster map containing values used for arrow length");
opt8 = G_define_option();
opt8->key = "scale";
opt8->type = TYPE_DOUBLE;
opt8->required = NO;
opt8->answer = "1.0";
opt8->description = _("Scale factor for arrows (magnitude map)");
align = G_define_flag();
align->key = 'a';
align->description = _("Align grids with raster cells");
/* Check command line */
if (G_parser(argc, argv))
exit(EXIT_FAILURE);
layer_name = opt1->answer;
arrow_color = D_translate_color(opt3->answer);
x_color = D_translate_color(opt5->answer);
unknown_color = D_translate_color(opt6->answer);
if (strcmp("none", opt4->answer) == 0)
grid_color = -1;
else
grid_color = D_translate_color(opt4->answer);
if (strcmp("grass", opt2->answer) == 0)
map_type = 1;
else if (strcmp("agnps", opt2->answer) == 0)
map_type = 2;
else if (strcmp("answers", opt2->answer) == 0)
map_type = 3;
else if (strcmp("compass", opt2->answer) == 0)
map_type = 4;
scale = atof(opt8->answer);
if (scale <= 0.0)
G_fatal_error(_("Illegal value for scale factor"));
skip = atoi(opt9->answer);
if (skip <= 0)
G_fatal_error(_("Illegal value for skip factor"));
if (opt7->answer) {
if (map_type != 1 && map_type != 4)
G_fatal_error(_("Magnitude is only supported for GRASS and compass aspect maps."));
mag_map = opt7->answer;
}
else if (scale != 1.0)
G_warning(_("Scale option requires magnitude_map"));
/* Setup driver and check important information */
if (D_open_driver() != 0)
G_fatal_error(_("No graphics device selected. "
"Use d.mon to select graphics device."));
D_setup(0);
/* Read in the map window associated with window */
G_get_window(&window);
if (align->answer) {
struct Cell_head wind;
Rast_get_cellhd(layer_name, "", &wind);
/* expand window extent by one wind resolution */
wind.west += wind.ew_res * ((int)((window.west - wind.west) / wind.ew_res) - (window.west < wind.west));
wind.east += wind.ew_res * ((int)((window.east - wind.east) / wind.ew_res) + (window.east > wind.east));
wind.south += wind.ns_res * ((int)((window.south - wind.south) / wind.ns_res) - (window.south < wind.south));
wind.north += wind.ns_res * ((int)((window.north - wind.north) / wind.ns_res) + (window.north > wind.north));
wind.rows = (wind.north - wind.south) / wind.ns_res;
wind.cols = (wind.east - wind.west) / wind.ew_res;
Rast_set_window(&wind);
nrows = wind.rows;
ncols = wind.cols;
t = (wind.north - window.north) * nrows / (wind.north - wind.south);
b = t + (window.north - window.south) * nrows / (wind.north - wind.south);
l = (window.west - wind.west) * ncols / (wind.east - wind.west);
r = l + (window.east - window.west) * ncols / (wind.east - wind.west);
} else {
nrows = window.rows;
ncols = window.cols;
t = 0;
b = nrows;
l = 0;
r = ncols;
}
D_set_src(t, b, l, r);
D_update_conversions();
/* figure out arrow scaling if using a magnitude map */
if (opt7->answer) {
Rast_init_fp_range(&range); /* really needed? */
if (Rast_read_fp_range(mag_map, "", &range) != 1)
G_fatal_error(_("Problem reading range file"));
Rast_get_fp_range_min_max(&range, &mag_min, &mag_max);
scale *= 1.5 / fabs(mag_max);
G_debug(3, "scaling=%.2f rast_max=%.2f", scale, mag_max);
}
if (grid_color > 0) { /* ie not "none" */
/* Set color */
D_use_color(grid_color);
/* Draw vertical grids */
for (col = 0; col < ncols; col++)
D_line_abs(col, 0, col, nrows);
/* Draw horizontal grids */
for (row = 0; row < nrows; row++)
D_line_abs(0, row, ncols, row);
}
/* open the raster map */
layer_fd = Rast_open_old(layer_name, "");
raster_type = Rast_get_map_type(layer_fd);
/* allocate the cell array */
raster_row = Rast_allocate_buf(raster_type);
if (opt7->answer) {
/* open the magnitude raster map */
mag_fd = Rast_open_old(mag_map, "");
mag_raster_type = Rast_get_map_type(mag_fd);
/* allocate the cell array */
mag_raster_row = Rast_allocate_buf(mag_raster_type);
}
/* loop through cells, find value, determine direction (n,s,e,w,ne,se,sw,nw),
and call appropriate function to draw an arrow on the cell */
for (row = 0; row < nrows; row++) {
Rast_get_row(layer_fd, raster_row, row, raster_type);
ptr = raster_row;
if (opt7->answer) {
Rast_get_row(mag_fd, mag_raster_row, row, mag_raster_type);
mag_ptr = mag_raster_row;
}
for (col = 0; col < ncols; col++) {
if (row % skip != 0)
no_arrow = TRUE;
else
no_arrow = FALSE;
if (col % skip != 0)
no_arrow = TRUE;
/* find aspect direction based on cell value */
if (raster_type == CELL_TYPE)
aspect_f = *((CELL *) ptr);
else if (raster_type == FCELL_TYPE)
aspect_f = *((FCELL *) ptr);
else if (raster_type == DCELL_TYPE)
aspect_f = *((DCELL *) ptr);
if (opt7->answer) {
if (mag_raster_type == CELL_TYPE)
length = *((CELL *) mag_ptr);
else if (mag_raster_type == FCELL_TYPE)
length = *((FCELL *) mag_ptr);
else if (mag_raster_type == DCELL_TYPE)
length = *((DCELL *) mag_ptr);
length *= scale;
if (Rast_is_null_value(mag_ptr, mag_raster_type)) {
G_debug(5, "Invalid arrow length [NULL]. Skipping.");
no_arrow = TRUE;
}
else if (length <= 0.0) { /* use fabs() or theta+=180? */
G_debug(5, "Illegal arrow length [%.3f]. Skipping.",
length);
no_arrow = TRUE;
}
}
if (no_arrow) {
ptr = G_incr_void_ptr(ptr, Rast_cell_size(raster_type));
if (opt7->answer)
mag_ptr =
G_incr_void_ptr(mag_ptr,
Rast_cell_size(mag_raster_type));
no_arrow = FALSE;
continue;
}
/* treat AGNPS and ANSWERS data like old zero-as-null CELL */
/* TODO: update models */
if (map_type == 2 || map_type == 3) {
if (Rast_is_null_value(ptr, raster_type))
aspect_c = 0;
else
aspect_c = (int)(aspect_f + 0.5);
}
/** Now draw the arrows **/
/* case switch for standard GRASS aspect map
measured in degrees counter-clockwise from east */
if (map_type == 1) {
D_use_color(arrow_color);
if (Rast_is_null_value(ptr, raster_type)) {
D_use_color(x_color);
draw_x();
D_use_color(arrow_color);
}
else if (aspect_f >= 0.0 && aspect_f <= 360.0) {
if (opt7->answer)
arrow_mag(aspect_f, length);
else
arrow_360(aspect_f);
}
else {
D_use_color(unknown_color);
unknown_();
D_use_color(arrow_color);
}
}
/* case switch for AGNPS type aspect map */
else if (map_type == 2) {
D_use_color(arrow_color);
switch (aspect_c) {
case 0:
D_use_color(x_color);
draw_x();
D_use_color(arrow_color);
break;
case 1:
arrow_n();
break;
case 2:
arrow_ne();
break;
case 3:
arrow_e();
break;
case 4:
arrow_se();
break;
case 5:
arrow_s();
break;
case 6:
arrow_sw();
break;
case 7:
arrow_w();
break;
case 8:
arrow_nw();
break;
default:
D_use_color(unknown_color);
unknown_();
D_use_color(arrow_color);
break;
}
}
/* case switch for ANSWERS type aspect map */
else if (map_type == 3) {
D_use_color(arrow_color);
if (aspect_c >= 15 && aspect_c <= 360) /* start at zero? */
arrow_360((double)aspect_c);
else if (aspect_c == 400) {
D_use_color(unknown_color);
unknown_();
D_use_color(arrow_color);
}
else {
D_use_color(x_color);
draw_x();
D_use_color(arrow_color);
}
}
/* case switch for compass type aspect map
measured in degrees clockwise from north */
else if (map_type == 4) {
D_use_color(arrow_color);
if (Rast_is_null_value(ptr, raster_type)) {
D_use_color(x_color);
draw_x();
D_use_color(arrow_color);
}
else if (aspect_f >= 0.0 && aspect_f <= 360.0) {
if (opt7->answer)
arrow_mag(90 - aspect_f, length);
else
arrow_360(90 - aspect_f);
}
else {
D_use_color(unknown_color);
unknown_();
D_use_color(arrow_color);
}
}
ptr = G_incr_void_ptr(ptr, Rast_cell_size(raster_type));
if (opt7->answer)
mag_ptr =
G_incr_void_ptr(mag_ptr, Rast_cell_size(mag_raster_type));
}
}
Rast_close(layer_fd);
if (opt7->answer)
Rast_close(mag_fd);
D_save_command(G_recreate_command());
D_close_driver();
exit(EXIT_SUCCESS);
}
int main(int argc, char *argv[])
{
struct GModule *module;
int infile;
const char *mapset;
size_t cell_size;
int ytile, xtile, y, overlap;
int *outfiles;
void *inbuf;
G_gisinit(argv[0]);
module = G_define_module();
G_add_keyword(_("raster"));
G_add_keyword(_("tiling"));
module->description =
_("Splits a raster map into tiles.");
parm.rastin = G_define_standard_option(G_OPT_R_INPUT);
parm.rastout = G_define_option();
parm.rastout->key = "output";
parm.rastout->type = TYPE_STRING;
parm.rastout->required = YES;
parm.rastout->multiple = NO;
parm.rastout->description = _("Output base name");
parm.width = G_define_option();
parm.width->key = "width";
parm.width->type = TYPE_INTEGER;
parm.width->required = YES;
parm.width->multiple = NO;
parm.width->description = _("Width of tiles (columns)");
parm.height = G_define_option();
parm.height->key = "height";
parm.height->type = TYPE_INTEGER;
parm.height->required = YES;
parm.height->multiple = NO;
parm.height->description = _("Height of tiles (rows)");
parm.overlap = G_define_option();
parm.overlap->key = "overlap";
parm.overlap->type = TYPE_INTEGER;
parm.overlap->required = NO;
parm.overlap->multiple = NO;
parm.overlap->description = _("Overlap of tiles");
if (G_parser(argc, argv))
exit(EXIT_FAILURE);
G_get_set_window(&src_w);
overlap = parm.overlap->answer ? atoi(parm.overlap->answer) : 0;
mapset = G_find_raster2(parm.rastin->answer, "");
if (mapset == NULL)
G_fatal_error(_("Raster map <%s> not found"), parm.rastin->answer);
/* set window to old map */
Rast_get_cellhd(parm.rastin->answer, "", &src_w);
dst_w = src_w;
dst_w.cols = atoi(parm.width->answer);
dst_w.rows = atoi(parm.height->answer);
G_adjust_Cell_head(&dst_w, 1, 1);
xtiles = (src_w.cols + dst_w.cols - 1) / dst_w.cols;
ytiles = (src_w.rows + dst_w.rows - 1) / dst_w.rows;
G_debug(1, "X: %d * %d, Y: %d * %d",
xtiles, dst_w.cols, ytiles, dst_w.rows);
src_w.cols = xtiles * dst_w.cols + 2 * overlap;
src_w.rows = ytiles * dst_w.rows + 2 * overlap;
src_w.west = src_w.west - overlap * src_w.ew_res;
src_w.east = src_w.west + (src_w.cols + 2 * overlap) * src_w.ew_res;
src_w.north = src_w.north + overlap * src_w.ns_res;
src_w.south = src_w.north - (src_w.rows + 2 * overlap) * src_w.ns_res;
Rast_set_input_window(&src_w);
/* set the output region */
ovl_w = dst_w;
ovl_w.cols = ovl_w.cols + 2 * overlap;
ovl_w.rows = ovl_w.rows + 2 * overlap;
G_adjust_Cell_head(&ovl_w, 1, 1);
Rast_set_output_window(&ovl_w);
infile = Rast_open_old(parm.rastin->answer, "");
map_type = Rast_get_map_type(infile);
cell_size = Rast_cell_size(map_type);
inbuf = Rast_allocate_input_buf(map_type);
outfiles = G_malloc(xtiles * sizeof(int));
G_debug(1, "X: %d * %d, Y: %d * %d",
xtiles, dst_w.cols, ytiles, dst_w.rows);
G_message(_("Generating %d x %d = %d tiles..."), xtiles, ytiles, xtiles * ytiles);
for (ytile = 0; ytile < ytiles; ytile++) {
G_debug(1, "reading y tile: %d", ytile);
G_percent(ytile, ytiles, 2);
for (xtile = 0; xtile < xtiles; xtile++) {
char name[GNAME_MAX];
sprintf(name, "%s-%03d-%03d", parm.rastout->answer, ytile, xtile);
outfiles[xtile] = Rast_open_new(name, map_type);
}
for (y = 0; y < ovl_w.rows; y++) {
int row = ytile * dst_w.rows + y;
G_debug(1, "reading row: %d", row);
Rast_get_row(infile, inbuf, row, map_type);
for (xtile = 0; xtile < xtiles; xtile++) {
int cells = xtile * dst_w.cols;
void *ptr = G_incr_void_ptr(inbuf, cells * cell_size);
Rast_put_row(outfiles[xtile], ptr, map_type);
}
}
for (xtile = 0; xtile < xtiles; xtile++) {
Rast_close(outfiles[xtile]);
write_support_files(xtile, ytile, overlap);
}
}
Rast_close(infile);
return EXIT_SUCCESS;
}
/* SAMPLING UNIT SETUP DRIVER */
void sample(int t0, int b0, int l0, int r0, char *name, char *name1,
char *name2, double *msc)
{
int btn, d, fmask;
double tmp;
/*
IN
name = name of raster map to be set up
name1 = name of overlay vector map
name2 = name of overlay site map
msc[0]= cols of region/width of screen
msc[1]= rows of region/height of screen
t0 = top row of sampling frame
b0 = bottom row of sampling frame
l0 = left col of sampling frame
r0 = right col of sampling frame
*/
/* determine whether the user will use
the keyboard or mouse to setup the
sampling units */
keyboard:
fprintf(stderr, "\n\n HOW WILL YOU SPECIFY SAMPLING UNITS?\n");
fprintf(stderr,
"\n Use keyboard to enter sampling unit dimensions 1");
fprintf(stderr,
"\n Use mouse to draw sampling units 2\n");
fprintf(stderr,
"\n Which Number? ");
numtrap(1, &tmp);
d = (int)(tmp);
if (d < 1 || d > 2) {
fprintf(stderr, " You did not enter a 1 or 2, try again\n");
goto keyboard;
}
if (d == 1 || d == 2) {
/* return a value > 0 to fmask if there is
a MASK present */
fprintf(stderr,
"\n If a MASK is not present (see r.mask) a beep may sound\n");
fprintf(stderr,
" and a WARNING may be printed that can be ignored.\n");
fprintf(stderr,
" If a MASK is present there will be no warning.\n");
fmask = Rast_open_old("MASK", G_mapset());
fprintf(stderr, "\n");
/* call the routine to setup sampling
units manually */
if (d == 1)
man_unit(t0, b0, l0, r0, name, name1, name2, msc, fmask);
/* call the routine to setup sampling
units graphically */
else if (d == 2)
graph_unit(t0, b0, l0, r0, name, name1, name2, msc, fmask);
Rast_close(fmask);
}
/* if neither, then exit */
else
exit(0);
return;
}
/* DEFINE SAMPLING UNITS MANUALLY */
static void man_unit(int t, int b, int l, int r, char *n1, char *n2, char *n3,
double *mx, int fmask)
{
int i, j, dx, dy, w_w, w_l, u_w, u_l,
method, l0, t0, randflag = 0, unit_num, num = 0, scales,
h_d = 1, v_d = 1, itmp, thick, sites, *row_buf, fr, k,
count = 0, maxsize = 0, nx = 0, ny = 0, numx = 0, numy = 0,
al = 0, ar = 0, at = 0, ab = 0, au_w = 0, au_l = 0;
double *ux, *uy;
FILE *fp;
double dtmp, ratio, size, intv = 0.0, start[2], cnt = 0, radius = 0.0;
char *sites_mapset;
struct Cell_head wind;
/* VARIABLES:
COORDINATES IN THIS ROUTINE ARE IN CELLS
t = top row of sampling frame
b = bottom row of sampling frame
l = left col of sampling frame
r = right col of sampling frame
n1 =
n2 =
n3 =
start[0]= row of UL corner of starting pt for strata
start[1]= col of UL corner of starting pt for strata
mx[0] = cols of region/width of screen
mx[1] = rows of region/height of screen
*/
start[0] = 0.0;
start[1] = 0.0;
l = (int)((double)(l * mx[0]) + 0.5);
r = (int)((double)(r * mx[0]) + 0.5);
t = (int)((double)(t * mx[1]) + 0.5);
b = (int)((double)(b * mx[1]) + 0.5);
w_w = r - l;
w_l = b - t;
/* draw the sampling frame */
R_open_driver();
R_standard_color(D_translate_color("grey"));
draw_box((int)(l / mx[0] + 0.5), (int)(t / mx[1] + 0.5),
(int)(r / mx[0] + 0.5), (int)(b / mx[1] + 0.5), 1);
R_close_driver();
/* open the units file for output */
fp = fopen0("r.le.para/units", "w");
G_sleep_on_error(0);
/* get the number of scales */
do {
fprintf(stderr,
"\n How many different SCALES do you want (1-15)? ");
numtrap(1, &dtmp);
if (dtmp > 15 || dtmp < 1) {
fprintf(stderr,
"\n Too many (>15) or too few scales; try again");
}
}
while (dtmp < 1 || dtmp > 15);
fprintf(fp, "%10d # of scales\n", (scales = (int)dtmp));
/* for each scale */
for (i = 0; i < scales; i++) {
for (;;) {
G_system("clear");
radius = 0.0;
fprintf(stderr, "\n\n TYPE IN PARAMETERS FOR SCALE %d:\n",
i + 1);
/* get the distribution method */
fprintf(stderr,
"\n Choose method of sampling unit DISTRIBUTION \n");
fprintf(stderr, " Random nonoverlapping 1\n");
fprintf(stderr, " Systematic contiguous 2\n");
fprintf(stderr, " Systematic noncontiguous 3\n");
fprintf(stderr, " Stratified random 4\n");
fprintf(stderr, " Centered over sites 5\n");
fprintf(stderr, " Exit to setup option menu 6\n\n");
do {
fprintf(stderr, " Which Number? ");
numtrap(1, &dtmp);
if ((method = fabs(dtmp)) > 6 || method < 1) {
fprintf(stderr,
"\n Choice must between 1-5; try again");
}
}
while (method > 6 || method < 1);
if (method == 6)
return;
/* for stratified random distribution,
determine the number of strata */
if (method == 4) {
getstrata:
fprintf(stderr,
"\n Number of strata along the x-axis? (1-60) ");
numtrap(1, &dtmp);
h_d = fabs(dtmp);
fprintf(stderr,
"\n Number of strata along the y-axis? (1-60) ");
numtrap(1, &dtmp);
v_d = fabs(dtmp);
if (h_d < 1 || v_d < 1 || h_d > 60 || v_d > 60) {
fprintf(stderr,
"\n Number must be between 1-60; try again.");
goto getstrata;
}
}
/* for methods with strata */
if (method == 2 || method == 3 || method == 4) {
strata:
fprintf(stderr,
"\n Sampling frame row & col for upper left corner of");
fprintf(stderr,
" the strata?\n Rows are numbered down and columns");
fprintf(stderr,
" are numbered to the right\n Enter 1 1 to start in");
fprintf(stderr, " upper left corner of sampling frame: ");
numtrap(2, start);
start[0] = start[0] - 1.0;
start[1] = start[1] - 1.0;
if (start[0] > w_l || start[0] < 0 ||
start[1] > w_w || start[1] < 0) {
fprintf(stderr,
"\n The starting row and col you entered are outside");
fprintf(stderr,
" the sampling frame\n Try again\n");
goto strata;
}
}
if (method == 4) {
/* call draw_grid with the left, top, width,
length, the number of horizontal and
vertical strata, and the starting row
and col for the strata */
draw_grid((int)(l / mx[0] + 0.5), (int)(t / mx[1] + 0.5),
(int)(w_w / mx[0] + 0.5), (int)(w_l / mx[1] + 0.5),
h_d, v_d, (int)(start[0] / mx[1] + 0.5),
(int)(start[1] / mx[0] + 0.5), mx[0], mx[1]);
if (!G_yes(" Are these strata OK? ", 1)) {
if (G_yes("\n\n Refresh the screen? ", 1)) {
paint_map(n1, n2, n3);
R_open_driver();
R_standard_color(D_translate_color("grey"));
draw_box((int)(l / mx[0] + 0.5),
(int)(t / mx[1] + 0.5),
(int)(r / mx[0] + 0.5),
(int)(b / mx[1] + 0.5), 1);
R_close_driver();
}
goto getstrata;
}
}
/* if sampling using circles */
fprintf(stderr, "\n Do you want to sample using rectangles");
if (!G_yes
("\n (including squares) (y) or circles (n)? ", 1)) {
getradius:
fprintf(stderr,
"\n What radius do you want for the circles? Radius");
fprintf(stderr,
"\n is in pixels; add 0.5 pixels, for the center");
fprintf(stderr,
"\n pixel, to the number of pixels outside the");
fprintf(stderr,
"\n center pixel. Type a real number with one");
fprintf(stderr,
"\n decimal place ending in .5 (e.g., 4.5): ");
numtrap(1, &radius);
if (radius > 100.0) {
fprintf(stderr,
"\n Are you sure that you want such a large");
if (!G_yes("\n radius (> 100 pixels)? ", 1))
goto getradius;
}
ratio = 1.0;
u_w = (int)(2 * radius);
u_l = (int)(2 * radius);
if (fmask > 0) {
count = 0;
row_buf = Rast_allocate_buf(CELL_TYPE);
fr = Rast_open_old(n1, G_mapset());
for (j = t; j < b; j++) {
Rast_zero_buf(row_buf, CELL_TYPE);
Rast_get_row(fr, row_buf, j, CELL_TYPE);
for (k = l; k < r; k++) {
if (*(row_buf + k))
count++;
}
}
G_free(row_buf);
Rast_close(fr);
cnt = (double)(count);
if (cnt)
cnt = sqrt(cnt);
else
cnt = 0;
}
else {
count = (w_l - (int)(start[0])) * (w_w - (int)(start[1]));
}
}
/* if sampling using rectangles/squares */
else {
/* get the width/length ratio */
getratio:
fprintf(stderr,
"\n Sampling unit SHAPE (aspect ratio, #cols/#rows) "
"expressed as real number"
"\n (e.g., 10 cols/5 rows = 2.0) for sampling units "
"of scale %d? ", i + 1);
numtrap(1, &ratio);
if (ratio < 0)
ratio = -ratio;
else if (ratio > 25.0)
if (!G_yes
("\n Are you sure you want such a large ratio? ",
1))
goto getratio;
/* determine the recommended maximum size
for sampling units */
getsize:
dtmp = (ratio > 1) ? 1 / ratio : ratio;
dtmp /= (h_d > v_d) ? h_d * h_d : v_d * v_d;
tryagain:
if (method == 1) {
if (fmask > 0) {
count = 0;
row_buf = Rast_allocate_buf(CELL_TYPE);
fr = Rast_open_old(n1, G_mapset());
for (j = t; j < b; j++) {
Rast_zero_buf(row_buf, CELL_TYPE);
Rast_get_row(fr, row_buf, j, CELL_TYPE);
for (k = l; k < r; k++) {
if (*(row_buf + k))
count++;
}
}
G_free(row_buf);
Rast_close(fr);
cnt = (double)(count);
if (cnt)
cnt = sqrt(cnt);
else
cnt = 0;
maxsize =
((cnt * dtmp / 2) * (cnt * dtmp / 2) >
1.0 / dtmp) ? (cnt * dtmp / 2) * (cnt * dtmp /
2) : 1.0 /
dtmp;
fprintf(stderr,
"\n Recommended maximum SIZE is %d in %d cell total",
maxsize, count);
fprintf(stderr, " area\n");
}
else {
fprintf(stderr, "\n Recommended maximum SIZE is");
fprintf(stderr, " %d in %d pixel total area\n",
(int)((w_l - (int)(start[0])) * (w_w -
(int)(start
[1])) *
dtmp / 2),
(w_l - (int)(start[0])) * (w_w -
(int)(start[1])));
count =
(w_l - (int)(start[0])) * (w_w - (int)(start[1]));
maxsize =
(int)((w_l - (int)(start[0])) * (w_w -
(int)(start[1]))
* dtmp / 2);
}
}
else if (method == 2 || method == 3 || method == 5) {
fprintf(stderr,
"\n Recommended maximum SIZE is %d in %d pixel total",
(int)((w_l - (int)(start[0])) * (w_w -
(int)(start[1]))
* dtmp / 2),
(w_l - (int)(start[0])) * (w_w -
(int)(start[1])));
fprintf(stderr, " area\n");
}
else if (method == 4) {
fprintf(stderr, "\n Recommended maximum SIZE is");
fprintf(stderr, " %d in %d pixel individual",
(int)(w_w * w_l * dtmp / 2),
((w_w - (int)(start[1])) / h_d) * ((w_l -
(int)(start
[0])) /
v_d));
fprintf(stderr, " stratum area\n");
}
/* get the unit size, display the calculated
size, and ask if it is OK */
fprintf(stderr,
" What size (in pixels) for each sampling unit of scale %d? ",
i + 1);
numtrap(1, &size);
thick = 1;
if (size < 15 || ratio < 0.2 || ratio > 5)
thick = 0;
u_w = sqrt(size * ratio);
u_l = sqrt(size / ratio);
fprintf(stderr,
"\n The nearest size is %d cells wide X %d cells high = %d",
u_w, u_l, u_w * u_l);
fprintf(stderr, " cells\n");
if (!u_w || !u_l) {
fprintf(stderr,
"\n 0 cells wide or high is not acceptable; try again");
goto tryagain;
}
if (!G_yes(" Is this SIZE OK? ", 1))
goto getsize;
}
/* for syst. noncontig. distribution, get
the interval between units */
if (method == 3) {
fprintf(stderr,
"\n The interval, in pixels, between the units of scale");
fprintf(stderr, " %d? ", i + 1);
numtrap(1, &intv);
}
/* if the unit dimension + the interval
is too large, print a warning and
try getting another size */
if (u_w + intv > w_w / h_d || u_l + intv > w_l / v_d) {
fprintf(stderr,
"\n Unit size too large for sampling frame; try again\n");
if (radius)
goto getradius;
else
goto getsize;
}
/* for stratified random distribution,
the number of units is the same as
the number of strata */
if (method == 4)
num = h_d * v_d;
/* for the other distributions, calculate the
maximum number of units, then get the
number of units */
else if (method == 1 || method == 2 || method == 3) {
if (method == 1) {
if (!
(unit_num =
calc_num(w_w, w_l, ratio, u_w, u_l, method, intv,
(int)(start[1]), (int)(start[0]), u_w * u_l,
count))) {
fprintf(stderr,
"\n Something wrong with sampling unit size, try again\n");
if (radius)
goto getradius;
else
goto getsize;
}
fprintf(stderr,
"\n Maximum NUMBER of units in scale %d is %d\n",
i + 1, unit_num);
fprintf(stderr,
" Usually 1/2 of this number can be successfully");
fprintf(stderr,
" distributed\n More than 1/2 can sometimes be");
fprintf(stderr, " distributed\n");
}
else if (method == 2 || method == 3) {
numx = floor((double)(w_w - start[1]) / (u_w + intv));
numy = floor((double)(w_l - start[0]) / (u_l + intv));
if (((w_w -
(int)(start[1])) % (numx * (u_w + (int)(intv)))) >=
u_w)
numx++;
if (((w_l -
(int)(start[0])) % (numy * (u_l + (int)(intv)))) >=
u_l)
numy++;
unit_num = numx * numy;
fprintf(stderr,
"\n Maximum NUMBER of units in scale %d is %d as %d",
i + 1, unit_num, numy);
fprintf(stderr, " rows with %d units per row", numx);
}
do {
fprintf(stderr,
"\n What NUMBER of sampling units do you want to try");
fprintf(stderr, " to use? ");
numtrap(1, &dtmp);
if ((num = dtmp) > unit_num || num < 1) {
fprintf(stderr,
"\n %d is greater than the maximum number of",
num);
fprintf(stderr, " sampling units; try again\n");
}
else if (method == 2 || method == 3) {
fprintf(stderr,
"\n How many sampling units do you want per row? ");
numtrap(1, &dtmp);
if ((nx = dtmp) > num) {
fprintf(stderr,
"\n Number in each row > number requested; try");
fprintf(stderr, " again\n");
}
else {
if (nx > numx) {
fprintf(stderr,
"\n Can't fit %d units in each row, try",
nx);
fprintf(stderr, " again\n");
}
else {
if (num % nx)
ny = num / nx + 1;
else
ny = num / nx;
if (ny > numy) {
fprintf(stderr,
"\n Can't fit the needed %d rows, try",
ny);
fprintf(stderr, " again\n");
}
}
}
}
}
while (num > unit_num || num < 1 || nx > num || nx > numx ||
ny > numy);
}
/* dynamically allocate storage for arrays to
store the upper left corner of sampling
units */
if (method != 5) {
ux = G_calloc(num + 1, sizeof(double));
uy = G_calloc(num + 1, sizeof(double));
}
else {
ux = G_calloc(250, sizeof(double));
uy = G_calloc(250, sizeof(double));
}
/* calculate the upper left corner of sampling
units and store them in arrays ux and uy */
if (!calc_unit_loc
(radius, t, b, l, r, ratio, u_w, u_l, method, intv, num, h_d,
v_d, ux, uy, &sites, (int)(start[1]), (int)(start[0]), fmask,
nx, mx[0], mx[1]))
goto last;
signal(SIGINT, SIG_DFL);
if (method == 5)
num = sites;
/* draw the sampling units on the
screen */
if (method == 2 || method == 3 || method == 5) {
R_open_driver();
R_standard_color(D_translate_color("red"));
for (j = 0; j < num; j++) {
if (radius) {
draw_circle((int)((double)(ux[j]) / mx[0]),
(int)((double)(uy[j]) / mx[1]),
(int)((double)(ux[j] + u_w) / mx[0]),
(int)((double)(uy[j] + u_l) / mx[1]), 3);
}
else {
draw_box((int)((double)(ux[j]) / mx[0]),
(int)((double)(uy[j]) / mx[1]),
(int)((double)(ux[j] + u_w) / mx[0]),
(int)((double)(uy[j] + u_l) / mx[1]), 1);
}
}
R_close_driver();
}
if (G_yes("\n Is this set of sampling units OK? ", 1))
break;
last:
signal(SIGINT, SIG_DFL);
if (G_yes("\n Refresh the screen? ", 1)) {
paint_map(n1, n2, n3);
R_open_driver();
R_standard_color(D_translate_color("grey"));
draw_box((int)(l / mx[0]), (int)(t / mx[1]), (int)(r / mx[0]),
(int)(b / mx[1]), 1);
R_close_driver();
}
}
/* save the sampling unit parameters
in r.le.para/units file */
fprintf(fp, "%10d # of units of scale %d.\n", num, (i + 1));
fprintf(fp, "%10d%10d u_w, u_l of units in scale %d\n", u_w, u_l,
(i + 1));
fprintf(fp, "%10.1f radius of circles in scale %d\n",
radius, (i + 1));
for (j = 0; j < num; j++)
fprintf(fp, "%10d%10d left, top of unit[%d]\n", (int)ux[j],
(int)uy[j], j + 1);
if (i < scales - 1 && G_yes("\n\n Refresh the screen? ", 1)) {
paint_map(n1, n2, n3);
R_open_driver();
R_standard_color(D_translate_color("grey"));
draw_box((int)(l / mx[0]), (int)(t / mx[1]), (int)(r / mx[0]),
(int)(b / mx[1]), 1);
R_close_driver();
}
}
/* free dynamically allocated memory */
G_free(ux);
G_free(uy);
fclose(fp);
return;
}
void filter_holes(Gfile * out)
{
int row, col, nrows, ncols;
void *arast, *brast, *crast;
int i, pixel[9], cold, warm, shadow, nulo, lim;
Gfile tmp;
nrows = Rast_window_rows();
ncols = Rast_window_cols();
if (nrows < 3 || ncols < 3)
return;
/* Open to read */
if ((out->fd = Rast_open_old(out->name, "")) < 0)
G_fatal_error(_("Unable to open raster map <%s>"), out->name);
arast = Rast_allocate_buf(CELL_TYPE);
brast = Rast_allocate_buf(CELL_TYPE);
crast = Rast_allocate_buf(CELL_TYPE);
/* Open to write */
sprintf(tmp.name, "_%d.BBB", getpid());
tmp.rast = Rast_allocate_buf(CELL_TYPE);
if ((tmp.fd = Rast_open_new(tmp.name, CELL_TYPE)) < 0)
G_fatal_error(_("Unable to create raster map <%s>"), tmp.name);
G_important_message(_("Filling small holes in clouds..."));
/* Se puede acelerar creandolos nulos y luego arast = brast
brast = crast y cargando crast solamente
G_set_f_null_value(cell[2], ncols);
*/
for (row = 0; row < nrows; row++) {
G_percent(row, nrows, 2);
/* Read row values */
if (row != 0) {
Rast_get_c_row(out->fd, arast, row - 1);
}
Rast_get_c_row(out->fd, brast, row);
if (row != (nrows - 1)) {
Rast_get_c_row(out->fd, crast, row + 1);
}
/* Analysis of all pixels */
for (col = 0; col < ncols; col++) {
pixel[0] = pval(brast, col);
if (pixel[0] == 0) {
if (row == 0) {
pixel[1] = -1;
pixel[2] = -1;
pixel[3] = -1;
if (col == 0) {
pixel[4] = -1;
pixel[5] = pval(brast, col + 1);
pixel[6] = -1;
pixel[7] = pval(crast, col);
pixel[8] = pval(crast, col + 1);
}
else if (col != (ncols - 1)) {
pixel[4] = pval(brast, col - 1);
pixel[5] = pval(brast, col + 1);
pixel[6] = pval(crast, col - 1);
pixel[7] = pval(crast, col);
pixel[8] = pval(crast, col + 1);
}
else {
pixel[4] = pval(brast, col - 1);
pixel[5] = -1;
pixel[6] = pval(crast, col - 1);
pixel[7] = pval(crast, col);
pixel[8] = -1;
}
}
else if (row != (nrows - 1)) {
if (col == 0) {
pixel[1] = -1;
pixel[2] = pval(arast, col);
pixel[3] = pval(arast, col + 1);
pixel[4] = -1;
pixel[5] = pval(brast, col + 1);
pixel[6] = -1;
pixel[7] = pval(crast, col);
pixel[8] = pval(crast, col + 1);
}
else if (col != (ncols - 1)) {
pixel[1] = pval(arast, col - 1);
pixel[2] = pval(arast, col);
pixel[3] = pval(arast, col + 1);
pixel[4] = pval(brast, col - 1);
pixel[5] = pval(brast, col + 1);
pixel[6] = pval(crast, col - 1);
pixel[7] = pval(crast, col);
pixel[8] = pval(crast, col + 1);
}
else {
pixel[1] = pval(arast, col - 1);
pixel[2] = pval(arast, col);
pixel[3] = -1;
pixel[4] = pval(brast, col - 1);
pixel[5] = -1;
pixel[6] = pval(crast, col - 1);
pixel[7] = pval(crast, col);
pixel[8] = -1;
}
}
else {
pixel[6] = -1;
pixel[7] = -1;
pixel[8] = -1;
if (col == 0) {
pixel[1] = -1;
pixel[2] = pval(arast, col);
pixel[3] = pval(arast, col + 1);
pixel[4] = -1;
pixel[5] = pval(brast, col + 1);
}
else if (col != (ncols - 1)) {
pixel[1] = pval(arast, col - 1);
pixel[2] = pval(arast, col);
pixel[3] = pval(arast, col + 1);
pixel[4] = pval(brast, col - 1);
pixel[5] = pval(brast, col + 1);
}
else {
pixel[1] = pval(arast, col - 1);
pixel[2] = pval(arast, col);
pixel[3] = -1;
pixel[4] = pval(brast, col - 1);
pixel[5] = -1;
}
}
cold = warm = shadow = nulo = 0;
for (i = 1; i < 9; i++) {
switch (pixel[i]) {
case IS_COLD_CLOUD:
cold++;
break;
case IS_WARM_CLOUD:
warm++;
break;
case IS_SHADOW:
shadow++;
break;
default:
nulo++;
break;
}
}
lim = (int)(cold + warm + shadow + nulo) / 2;
/* Entra pixel[0] = 0 */
if (nulo < lim) {
if (shadow >= (cold + warm))
pixel[0] = IS_SHADOW;
else
pixel[0] =
(warm > cold) ? IS_WARM_CLOUD : IS_COLD_CLOUD;
}
}
if (pixel[0] != 0) {
((CELL *) tmp.rast)[col] = pixel[0];
}
else {
Rast_set_c_null_value((CELL *) tmp.rast + col, 1);
}
}
Rast_put_row(tmp.fd, tmp.rast, CELL_TYPE);
}
G_percent(1, 1, 1);
G_free(arast);
G_free(brast);
G_free(crast);
Rast_close(out->fd);
G_free(tmp.rast);
Rast_close(tmp.fd);
G_remove("cats", out->name);
G_remove("cell", out->name);
G_remove("cellhd", out->name);
G_remove("cell_misc", out->name);
G_remove("hist", out->name);
G_rename("cats", tmp.name, out->name);
G_rename("cell", tmp.name, out->name);
G_rename("cellhd", tmp.name, out->name);
G_rename("cell_misc", tmp.name, out->name);
G_rename("hist", tmp.name, out->name);
return;
}
int main(int argc, char *argv[])
{
struct GModule *module;
struct
{
struct Option *quant, *perc, *slots, *basemap, *covermap, *output;
} opt;
struct {
struct Flag *r, *p;
} flag;
const char *basemap, *covermap;
char **outputs;
int reclass, print;
int cover_fd, base_fd;
struct Range range;
struct FPRange fprange;
int i;
G_gisinit(argv[0]);
module = G_define_module();
G_add_keyword(_("raster"));
G_add_keyword(_("statistics"));
module->description = _("Compute category quantiles using two passes.");
opt.basemap = G_define_standard_option(G_OPT_R_BASE);
opt.covermap = G_define_standard_option(G_OPT_R_COVER);
opt.quant = G_define_option();
opt.quant->key = "quantiles";
opt.quant->type = TYPE_INTEGER;
opt.quant->required = NO;
opt.quant->description = _("Number of quantiles");
opt.perc = G_define_option();
opt.perc->key = "percentiles";
opt.perc->type = TYPE_DOUBLE;
opt.perc->multiple = YES;
opt.perc->description = _("List of percentiles");
opt.perc->answer = "50";
opt.slots = G_define_option();
opt.slots->key = "bins";
opt.slots->type = TYPE_INTEGER;
opt.slots->required = NO;
opt.slots->description = _("Number of bins to use");
opt.slots->answer = "1000";
opt.output = G_define_standard_option(G_OPT_R_OUTPUT);
opt.output->description = _("Resultant raster map(s)");
opt.output->required = NO;
opt.output->multiple = YES;
flag.r = G_define_flag();
flag.r->key = 'r';
flag.r->description =
_("Create reclass map with statistics as category labels");
flag.p = G_define_flag();
flag.p->key = 'p';
flag.p->description =
_("Do not create output maps; just print statistics");
if (G_parser(argc, argv))
exit(EXIT_FAILURE);
basemap = opt.basemap->answer;
covermap = opt.covermap->answer;
outputs = opt.output->answers;
reclass = flag.r->answer;
print = flag.p->answer;
if (!print && !opt.output->answers)
G_fatal_error(_("Either -%c or %s= must be given"),
flag.p->key, opt.output->key);
if (print && opt.output->answers)
G_fatal_error(_("-%c and %s= are mutually exclusive"),
flag.p->key, opt.output->key);
num_slots = atoi(opt.slots->answer);
if (opt.quant->answer) {
num_quants = atoi(opt.quant->answer) - 1;
quants = G_calloc(num_quants, sizeof(DCELL));
for (i = 0; i < num_quants; i++)
quants[i] = 1.0 * (i + 1) / (num_quants + 1);
}
else {
for (i = 0; opt.perc->answers[i]; i++)
;
num_quants = i;
quants = G_calloc(num_quants, sizeof(DCELL));
for (i = 0; i < num_quants; i++)
quants[i] = atof(opt.perc->answers[i]) / 100;
qsort(quants, num_quants, sizeof(DCELL), compare_dcell);
}
if (opt.output->answer) {
for (i = 0; opt.output->answers[i]; i++)
;
if (i != num_quants)
G_fatal_error(_("Number of quantiles (%d) does not match number of output maps (%d)"),
num_quants, i);
}
base_fd = Rast_open_old(basemap, "");
cover_fd = Rast_open_old(covermap, "");
if (Rast_map_is_fp(basemap, "") != 0)
G_fatal_error(_("The base map must be an integer (CELL) map"));
if (Rast_read_range(basemap, "", &range) < 0)
G_fatal_error(_("Unable to read range of base map <%s>"), basemap);
Rast_get_range_min_max(&range, &min, &max);
num_cats = max - min + 1;
if (num_cats > MAX_CATS)
G_fatal_error(_("Base map <%s> has too many categories (max: %d)"),
basemap, MAX_CATS);
Rast_read_fp_range(covermap, "", &fprange);
Rast_get_fp_range_min_max(&fprange, &f_min, &f_max);
slot_size = (f_max - f_min) / num_slots;
basecats = G_calloc(num_cats, sizeof(struct basecat));
for (i = 0; i < num_cats; i++)
basecats[i].slots = G_calloc(num_slots, sizeof(unsigned int));
rows = Rast_window_rows();
cols = Rast_window_cols();
get_slot_counts(base_fd, cover_fd);
initialize_bins();
fill_bins(base_fd, cover_fd);
sort_bins();
compute_quantiles();
if (print)
print_quantiles();
else if (reclass)
do_reclass(basemap, outputs);
else
do_output(base_fd, outputs, covermap);
Rast_close(cover_fd);
Rast_close(base_fd);
return (EXIT_SUCCESS);
}
int main(int argc, char *argv[])
{
int i, row, col; /* counters */
unsigned long filesize;
int endianness; /* 0=little, 1=big */
int data_format; /* 0=double 1=float 2=32bit signed int 5=8bit unsigned int (ie text) */
int data_type; /* 0=numbers 1=text */
int format_block; /* combo of endianness, 0, data_format, and type */
int realflag = 0; /* 0=only real values used */
/* should type be specifically uint32 ??? */
char array_name[32]; /* variable names must start with a letter (case
sensitive) followed by letters, numbers, or
underscores. 31 chars max. */
int name_len;
int mrows, ncols; /* text/data/map array dimensions */
int val_i; /* for misc use */
float val_f; /* for misc use */
double val_d; /* for misc use */
char *infile, *outfile, *maptitle, *basename;
struct Cell_head region;
void *raster, *ptr;
RASTER_MAP_TYPE map_type;
struct Option *inputfile, *outputfile;
struct GModule *module;
int fd;
FILE *fp1;
G_gisinit(argv[0]);
module = G_define_module();
G_add_keyword(_("raster"));
G_add_keyword(_("export"));
module->description = _("Exports a GRASS raster to a binary MAT-File.");
/* Define the different options */
inputfile = G_define_standard_option(G_OPT_R_INPUT);
outputfile = G_define_option();
outputfile->key = "output";
outputfile->type = TYPE_STRING;
outputfile->required = YES;
outputfile->gisprompt = "new_file,file,output";
outputfile->description = _("Name for the output binary MAT-File");
if (G_parser(argc, argv))
exit(EXIT_FAILURE);
infile = inputfile->answer;
basename = G_store(outputfile->answer);
G_basename(basename, "mat");
outfile = G_malloc(strlen(basename) + 5);
sprintf(outfile, "%s.mat", basename);
fd = Rast_open_old(infile, "");
map_type = Rast_get_map_type(fd);
/* open bin file for writing */
fp1 = fopen(outfile, "wb");
if (NULL == fp1)
G_fatal_error(_("Unable to open output file <%s>"), outfile);
/* Check Endian State of Host Computer */
if (G_is_little_endian())
endianness = 0; /* ie little endian */
else
endianness = 1; /* ie big endian */
G_debug(1, "Machine is %s endian.\n", endianness ? "big" : "little");
G_get_window(®ion);
/********** Write map **********/
/** write text element (map name) **/
strncpy(array_name, "map_name", 31);
mrows = 1;
ncols = strlen(infile);
data_format = 5; /* 0=double 1=float 2=32bit signed int 5=8bit unsigned int(text) */
data_type = 1; /* 0=numbers 1=text */
G_verbose_message(_("Exporting <%s>"), infile);
/* 4 byte data format */
format_block = endianness * 1000 + data_format * 10 + data_type;
fwrite(&format_block, sizeof(int), 1, fp1);
/* fprintf(stderr, "name data format is [%04ld]\n", format_block); */
/* 4 byte number of rows & columns */
fwrite(&mrows, sizeof(int), 1, fp1);
fwrite(&ncols, sizeof(int), 1, fp1);
/* 4 byte real/imag flag 0=real vals only */
fwrite(&realflag, sizeof(int), 1, fp1);
/* length of array_name+1 */
name_len = strlen(array_name) + 1;
fwrite(&name_len, sizeof(int), 1, fp1);
/* array name */
fprintf(fp1, "%s%c", array_name, '\0');
/* array data */
fprintf(fp1, "%s", infile);
/********** Write title (if there is one) **********/
maptitle = Rast_get_cell_title(infile, "");
if (strlen(maptitle) >= 1) {
/** write text element (map title) **/
strncpy(array_name, "map_title", 31);
mrows = 1;
ncols = strlen(maptitle);
data_format = 5; /* 0=double 1=float 2=32bit signed int 5=8bit unsigned int(text) */
data_type = 1; /* 0=numbers 1=text */
/* 4 byte data format */
format_block = endianness * 1000 + data_format * 10 + data_type;
fwrite(&format_block, sizeof(int), 1, fp1);
/* 4 byte number of rows & columns */
fwrite(&mrows, sizeof(int), 1, fp1);
fwrite(&ncols, sizeof(int), 1, fp1);
/* 4 byte real/imag flag 0=real vals only */
fwrite(&realflag, sizeof(int), 1, fp1);
/* length of array_name+1 */
name_len = strlen(array_name) + 1;
fwrite(&name_len, sizeof(int), 1, fp1);
/* array name */
fprintf(fp1, "%s%c", array_name, '\0');
/* array data */
fprintf(fp1, "%s", maptitle);
}
/***** Write bounds *****/
G_verbose_message("");
G_verbose_message(_("Using the Current Region settings:"));
G_verbose_message(_("northern edge=%f"), region.north);
G_verbose_message(_("southern edge=%f"), region.south);
G_verbose_message(_("eastern edge=%f"), region.east);
G_verbose_message(_("western edge=%f"), region.west);
G_verbose_message(_("nsres=%f"), region.ns_res);
G_verbose_message(_("ewres=%f"), region.ew_res);
G_verbose_message(_("rows=%d"), region.rows);
G_verbose_message(_("cols=%d"), region.cols);
G_verbose_message("");
for (i = 0; i < 4; i++) {
switch (i) {
case 0:
strncpy(array_name, "map_northern_edge", 31);
val_d = region.north;
break;
case 1:
strncpy(array_name, "map_southern_edge", 31);
val_d = region.south;
break;
case 2:
strncpy(array_name, "map_eastern_edge", 31);
val_d = region.east;
break;
case 3:
strncpy(array_name, "map_western_edge", 31);
val_d = region.west;
break;
default:
fclose(fp1);
G_fatal_error("please contact development team");
break;
}
/** write data element **/
data_format = 0; /* 0=double 1=float 2=32bit signed int 5=8bit unsigned int(text) */
data_type = 0; /* 0=numbers 1=text */
mrows = 1;
ncols = 1;
/* 4 byte data format */
format_block = endianness * 1000 + data_format * 10 + data_type;
fwrite(&format_block, sizeof(int), 1, fp1);
/* fprintf(stderr, "bounds data format is [%04ld]\n", format_block); */
/* 4 byte number of rows , 4 byte number of colums */
fwrite(&mrows, sizeof(int), 1, fp1);
fwrite(&ncols, sizeof(int), 1, fp1);
/* 4 byte real/imag flag 0=only real */
fwrite(&realflag, sizeof(int), 1, fp1);
/* length of array_name+1 */
name_len = strlen(array_name) + 1;
fwrite(&name_len, sizeof(int), 1, fp1);
/* array name */
fprintf(fp1, "%s%c", array_name, '\0');
/* write array data, by increasing column */
fwrite(&val_d, sizeof(double), 1, fp1);
/** end of data element **/
}
/***** Write map data *****/
strncpy(array_name, "map_data", 31);
switch (map_type) { /* data_format: 0=double 1=float 2=32bit signed int 5=8bit unsigned int (ie text) */
case CELL_TYPE:
data_format = 2;
G_verbose_message(_("Exporting raster as integer values"));
break;
case FCELL_TYPE:
data_format = 1;
G_verbose_message(_("Exporting raster as floating point values"));
break;
case DCELL_TYPE:
data_format = 0;
G_verbose_message(_("Exporting raster as double FP values"));
break;
default:
fclose(fp1);
G_fatal_error("Please contact development team");
break;
}
data_type = 0; /* 0=numbers 1=text */
mrows = region.rows;
ncols = region.cols;
/* 4 byte data format */
format_block = (endianness * 1000) + (data_format * 10) + data_type;
fwrite(&format_block, sizeof(int), 1, fp1);
G_debug(3, "map data format is [%04d]\n", format_block);
/* 4 byte number of rows & columns */
fwrite(&mrows, sizeof(int), 1, fp1);
fwrite(&ncols, sizeof(int), 1, fp1);
/* 4 byte real/imag flag 0=only real */
fwrite(&realflag, sizeof(int), 1, fp1);
/* length of array_name+1 */
name_len = strlen(array_name) + 1;
fwrite(&name_len, sizeof(int), 1, fp1);
/* array name */
fprintf(fp1, "%s%c", array_name, '\0');
/* data array, by increasing column */
raster =
G_calloc((Rast_window_rows() + 1) * (Rast_window_cols() + 1),
Rast_cell_size(map_type));
G_debug(1, "mem alloc is %d bytes\n", /* I think _cols()+1 is unneeded? */
Rast_cell_size(map_type) * (Rast_window_rows() +
1) * (Rast_window_cols() + 1));
G_verbose_message(_("Reading in map ... "));
/* load entire map into memory */
for (row = 0, ptr = raster; row < mrows; row++,
ptr =
G_incr_void_ptr(ptr,
(Rast_window_cols() + 1) * Rast_cell_size(map_type))) {
Rast_get_row(fd, ptr, row, map_type);
G_percent(row, mrows, 2);
}
G_percent(row, mrows, 2); /* finish it off */
G_verbose_message(_("Writing out map..."));
/* then write it to disk */
/* NoGood: fwrite(raster, Rast_cell_size(map_type), mrows*ncols, fp1); */
for (col = 0; col < ncols; col++) {
for (row = 0; row < mrows; row++) {
ptr = raster;
ptr =
G_incr_void_ptr(ptr,
(col +
row * (ncols +
1)) * Rast_cell_size(map_type));
if (!Rast_is_null_value(ptr, map_type)) {
if (map_type == CELL_TYPE) {
val_i = *((CELL *) ptr);
fwrite(&val_i, sizeof(int), 1, fp1);
}
else if (map_type == FCELL_TYPE) {
val_f = *((FCELL *) ptr);
fwrite(&val_f, sizeof(float), 1, fp1);
}
else if (map_type == DCELL_TYPE) {
val_d = *((DCELL *) ptr);
fwrite(&val_d, sizeof(double), 1, fp1);
}
}
else { /* ie if NULL cell -> write IEEE NaN value */
if (map_type == CELL_TYPE) {
val_i = *((CELL *) ptr); /* int has no NaN value, so use whatever GRASS uses */
fwrite(&val_i, sizeof(int), 1, fp1);
}
else if (map_type == FCELL_TYPE) {
if (endianness) /* ie big */
fprintf(fp1, "%c%c%c%c", 0xff, 0xf8, 0, 0);
else /* ie little */
fprintf(fp1, "%c%c%c%c", 0, 0, 0xf8, 0xff);
}
else if (map_type == DCELL_TYPE) {
if (endianness)
fprintf(fp1, "%c%c%c%c%c%c%c%c", 0xff, 0xf8, 0, 0, 0,
0, 0, 0);
else
fprintf(fp1, "%c%c%c%c%c%c%c%c", 0, 0, 0, 0, 0, 0,
0xf8, 0xff);
}
}
}
G_percent(col, ncols, 2);
}
G_percent(col, ncols, 2); /* finish it off */
/*** end of data element ***/
/* done! */
filesize = G_ftell(fp1);
fclose(fp1);
G_verbose_message(_("%ld bytes written to '%s'"), filesize, outfile);
G_done_msg("");
G_free(basename);
G_free(outfile);
exit(EXIT_SUCCESS);
}
int read_input_map(char *input, char *mapset, int ZEROFLAG)
{
int fd;
int row;
int hit;
register int col;
register CELL *cell;
register MAPTYPE *ptr;
map = (MAPTYPE *) G_malloc((size_t) window.rows * window.cols * sizeof(MAPTYPE));
fd = Rast_open_old(input, mapset);
cell = Rast_allocate_c_buf();
ptr = map;
minrow = -1;
maxrow = -1;
mincol = window.cols;
maxcol = 0;
G_message(_("Reading input raster map <%s>..."),
G_fully_qualified_name(input, mapset));
count_rows_with_data = 0;
for (row = 0; row < window.rows; row++) {
hit = 0;
G_percent(row, window.rows, 2);
Rast_get_c_row(fd, cell, row);
for (col = 0; col < window.cols; col++) {
if (ZEROFLAG) {
if ((*ptr++ = (*cell++ != 0))) {
if (minrow < 0)
minrow = row;
maxrow = row;
if (col < mincol)
mincol = col;
if (col > maxcol)
maxcol = col;
if (!hit) {
count_rows_with_data++;
hit = 1;
}
}
}
else { /* use NULL */
if ((*ptr++ = !Rast_is_c_null_value(cell++))) {
if (minrow < 0)
minrow = row;
maxrow = row;
if (col < mincol)
mincol = col;
if (col > maxcol)
maxcol = col;
if (!hit) {
count_rows_with_data++;
hit = 1;
}
}
}
}
cell -= window.cols;
}
G_percent(row, window.rows, 2);
Rast_close(fd);
G_free(cell);
return 0;
}
int main(int argc, char **argv)
{
char *mapname, /* ptr to name of output layer */
*setname, /* ptr to name of input mapset */
*ipolname; /* name of interpolation method */
int fdi, /* input map file descriptor */
fdo, /* output map file descriptor */
method, /* position of method in table */
permissions, /* mapset permissions */
cell_type, /* output celltype */
cell_size, /* size of a cell in bytes */
row, col, /* counters */
irows, icols, /* original rows, cols */
orows, ocols, have_colors, /* Input map has a colour table */
overwrite, /* Overwrite */
curr_proj; /* output projection (see gis.h) */
void *obuffer, /* buffer that holds one output row */
*obufptr; /* column ptr in output buffer */
struct cache *ibuffer; /* buffer that holds the input map */
func interpolate; /* interpolation routine */
double xcoord1, xcoord2, /* temporary x coordinates */
ycoord1, ycoord2, /* temporary y coordinates */
col_idx, /* column index in input matrix */
row_idx, /* row index in input matrix */
onorth, osouth, /* save original border coords */
oeast, owest, inorth, isouth, ieast, iwest;
char north_str[30], south_str[30], east_str[30], west_str[30];
struct Colors colr; /* Input map colour table */
struct History history;
struct pj_info iproj, /* input map proj parameters */
oproj; /* output map proj parameters */
struct Key_Value *in_proj_info, /* projection information of */
*in_unit_info, /* input and output mapsets */
*out_proj_info, *out_unit_info;
struct GModule *module;
struct Flag *list, /* list files in source location */
*nocrop, /* don't crop output map */
*print_bounds, /* print output bounds and exit */
*gprint_bounds; /* same but print shell style */
struct Option *imapset, /* name of input mapset */
*inmap, /* name of input layer */
*inlocation, /* name of input location */
*outmap, /* name of output layer */
*indbase, /* name of input database */
*interpol, /* interpolation method:
nearest neighbor, bilinear, cubic */
*memory, /* amount of memory for cache */
*res; /* resolution of target map */
struct Cell_head incellhd, /* cell header of input map */
outcellhd; /* and output map */
G_gisinit(argv[0]);
module = G_define_module();
G_add_keyword(_("raster"));
G_add_keyword(_("projection"));
G_add_keyword(_("transformation"));
module->description =
_("Re-projects a raster map from given location to the current location.");
inmap = G_define_standard_option(G_OPT_R_INPUT);
inmap->description = _("Name of input raster map to re-project");
inmap->required = NO;
inmap->guisection = _("Source");
inlocation = G_define_option();
inlocation->key = "location";
inlocation->type = TYPE_STRING;
inlocation->required = YES;
inlocation->description = _("Location containing input raster map");
inlocation->gisprompt = "old,location,location";
inlocation->key_desc = "name";
imapset = G_define_standard_option(G_OPT_M_MAPSET);
imapset->label = _("Mapset containing input raster map");
imapset->description = _("default: name of current mapset");
imapset->guisection = _("Source");
indbase = G_define_option();
indbase->key = "dbase";
indbase->type = TYPE_STRING;
indbase->required = NO;
indbase->description = _("Path to GRASS database of input location");
indbase->gisprompt = "old,dbase,dbase";
indbase->key_desc = "path";
indbase->guisection = _("Source");
outmap = G_define_standard_option(G_OPT_R_OUTPUT);
outmap->required = NO;
outmap->description = _("Name for output raster map (default: same as 'input')");
outmap->guisection = _("Target");
ipolname = make_ipol_list();
interpol = G_define_option();
interpol->key = "method";
interpol->type = TYPE_STRING;
interpol->required = NO;
interpol->answer = "nearest";
interpol->options = ipolname;
interpol->description = _("Interpolation method to use");
interpol->guisection = _("Target");
interpol->descriptions = make_ipol_desc();
memory = G_define_option();
memory->key = "memory";
memory->type = TYPE_INTEGER;
memory->required = NO;
memory->description = _("Cache size (MiB)");
res = G_define_option();
res->key = "resolution";
res->type = TYPE_DOUBLE;
res->required = NO;
res->description = _("Resolution of output raster map");
res->guisection = _("Target");
list = G_define_flag();
list->key = 'l';
list->description = _("List raster maps in input location and exit");
nocrop = G_define_flag();
nocrop->key = 'n';
nocrop->description = _("Do not perform region cropping optimization");
print_bounds = G_define_flag();
print_bounds->key = 'p';
print_bounds->description =
_("Print input map's bounds in the current projection and exit");
print_bounds->guisection = _("Target");
gprint_bounds = G_define_flag();
gprint_bounds->key = 'g';
gprint_bounds->description =
_("Print input map's bounds in the current projection and exit (shell style)");
gprint_bounds->guisection = _("Target");
/* The parser checks if the map already exists in current mapset,
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);
/* get the method */
for (method = 0; (ipolname = menu[method].name); method++)
if (strcmp(ipolname, interpol->answer) == 0)
break;
if (!ipolname)
G_fatal_error(_("<%s=%s> unknown %s"),
interpol->key, interpol->answer, interpol->key);
interpolate = menu[method].method;
mapname = outmap->answer ? outmap->answer : inmap->answer;
if (mapname && !list->answer && !overwrite &&
G_find_raster(mapname, G_mapset()))
G_fatal_error(_("option <%s>: <%s> exists."), "output", mapname);
setname = imapset->answer ? imapset->answer : G_store(G_mapset());
if (strcmp(inlocation->answer, G_location()) == 0 &&
(!indbase->answer || strcmp(indbase->answer, G_gisdbase()) == 0))
#if 0
G_fatal_error(_("Input and output locations can not be the same"));
#else
G_warning(_("Input and output locations are the same"));
#endif
G_get_window(&outcellhd);
if(gprint_bounds->answer && !print_bounds->answer)
print_bounds->answer = gprint_bounds->answer;
curr_proj = G_projection();
/* Get projection info for output mapset */
if ((out_proj_info = G_get_projinfo()) == NULL)
G_fatal_error(_("Unable to get projection info of output raster map"));
if ((out_unit_info = G_get_projunits()) == NULL)
G_fatal_error(_("Unable to get projection units of output raster map"));
if (pj_get_kv(&oproj, out_proj_info, out_unit_info) < 0)
G_fatal_error(_("Unable to get projection key values of output raster map"));
/* Change the location */
G__create_alt_env();
G__setenv("GISDBASE", indbase->answer ? indbase->answer : G_gisdbase());
G__setenv("LOCATION_NAME", inlocation->answer);
permissions = G__mapset_permissions(setname);
if (permissions < 0) /* can't access mapset */
G_fatal_error(_("Mapset <%s> in input location <%s> - %s"),
setname, inlocation->answer,
permissions == 0 ? _("permission denied")
: _("not found"));
/* if requested, list the raster maps in source location - MN 5/2001 */
if (list->answer) {
int i;
char **list;
G_verbose_message(_("Checking location <%s> mapset <%s>"),
inlocation->answer, setname);
list = G_list(G_ELEMENT_RASTER, G__getenv("GISDBASE"),
G__getenv("LOCATION_NAME"), setname);
for (i = 0; list[i]; i++) {
fprintf(stdout, "%s\n", list[i]);
}
fflush(stdout);
exit(EXIT_SUCCESS); /* leave r.proj after listing */
}
if (!inmap->answer)
G_fatal_error(_("Required parameter <%s> not set"), inmap->key);
if (!G_find_raster(inmap->answer, setname))
G_fatal_error(_("Raster map <%s> in location <%s> in mapset <%s> not found"),
inmap->answer, inlocation->answer, setname);
/* Read input map colour table */
have_colors = Rast_read_colors(inmap->answer, setname, &colr);
/* Get projection info for input mapset */
if ((in_proj_info = G_get_projinfo()) == NULL)
G_fatal_error(_("Unable to get projection info of input map"));
if ((in_unit_info = G_get_projunits()) == NULL)
G_fatal_error(_("Unable to get projection units of input map"));
if (pj_get_kv(&iproj, in_proj_info, in_unit_info) < 0)
G_fatal_error(_("Unable to get projection key values of input map"));
G_free_key_value(in_proj_info);
G_free_key_value(in_unit_info);
G_free_key_value(out_proj_info);
G_free_key_value(out_unit_info);
if (G_verbose() > G_verbose_std())
pj_print_proj_params(&iproj, &oproj);
/* this call causes r.proj to read the entire map into memeory */
Rast_get_cellhd(inmap->answer, setname, &incellhd);
Rast_set_input_window(&incellhd);
if (G_projection() == PROJECTION_XY)
G_fatal_error(_("Unable to work with unprojected data (xy location)"));
/* Save default borders so we can show them later */
inorth = incellhd.north;
isouth = incellhd.south;
ieast = incellhd.east;
iwest = incellhd.west;
irows = incellhd.rows;
icols = incellhd.cols;
onorth = outcellhd.north;
osouth = outcellhd.south;
oeast = outcellhd.east;
owest = outcellhd.west;
orows = outcellhd.rows;
ocols = outcellhd.cols;
if (print_bounds->answer) {
G_message(_("Input map <%s@%s> in location <%s>:"),
inmap->answer, setname, inlocation->answer);
if (pj_do_proj(&iwest, &isouth, &iproj, &oproj) < 0)
G_fatal_error(_("Error in pj_do_proj (projection of input coordinate pair)"));
if (pj_do_proj(&ieast, &inorth, &iproj, &oproj) < 0)
G_fatal_error(_("Error in pj_do_proj (projection of input coordinate pair)"));
G_format_northing(inorth, north_str, curr_proj);
G_format_northing(isouth, south_str, curr_proj);
G_format_easting(ieast, east_str, curr_proj);
G_format_easting(iwest, west_str, curr_proj);
if(gprint_bounds->answer) {
fprintf(stdout, "n=%s s=%s w=%s e=%s rows=%d cols=%d\n",
north_str, south_str, west_str, east_str, irows, icols);
}
else {
fprintf(stdout, "Source cols: %d\n", icols);
fprintf(stdout, "Source rows: %d\n", irows);
fprintf(stdout, "Local north: %s\n", north_str);
fprintf(stdout, "Local south: %s\n", south_str);
fprintf(stdout, "Local west: %s\n", west_str);
fprintf(stdout, "Local east: %s\n", east_str);
}
/* somehow approximate local ewres, nsres ?? (use 'g.region -m' on lat/lon side) */
exit(EXIT_SUCCESS);
}
/* Cut non-overlapping parts of input map */
if (!nocrop->answer)
bordwalk(&outcellhd, &incellhd, &oproj, &iproj);
/* Add 2 cells on each side for bilinear/cubic & future interpolation methods */
/* (should probably be a factor based on input and output resolution) */
incellhd.north += 2 * incellhd.ns_res;
incellhd.east += 2 * incellhd.ew_res;
incellhd.south -= 2 * incellhd.ns_res;
incellhd.west -= 2 * incellhd.ew_res;
if (incellhd.north > inorth)
incellhd.north = inorth;
if (incellhd.east > ieast)
incellhd.east = ieast;
if (incellhd.south < isouth)
incellhd.south = isouth;
if (incellhd.west < iwest)
incellhd.west = iwest;
Rast_set_input_window(&incellhd);
/* And switch back to original location */
G__switch_env();
/* Adjust borders of output map */
if (!nocrop->answer)
bordwalk(&incellhd, &outcellhd, &iproj, &oproj);
#if 0
outcellhd.west = outcellhd.south = HUGE_VAL;
outcellhd.east = outcellhd.north = -HUGE_VAL;
for (row = 0; row < incellhd.rows; row++) {
ycoord1 = Rast_row_to_northing((double)(row + 0.5), &incellhd);
for (col = 0; col < incellhd.cols; col++) {
xcoord1 = Rast_col_to_easting((double)(col + 0.5), &incellhd);
pj_do_proj(&xcoord1, &ycoord1, &iproj, &oproj);
if (xcoord1 > outcellhd.east)
outcellhd.east = xcoord1;
if (ycoord1 > outcellhd.north)
outcellhd.north = ycoord1;
if (xcoord1 < outcellhd.west)
outcellhd.west = xcoord1;
if (ycoord1 < outcellhd.south)
outcellhd.south = ycoord1;
}
}
#endif
if (res->answer != NULL) /* set user defined resolution */
outcellhd.ns_res = outcellhd.ew_res = atof(res->answer);
G_adjust_Cell_head(&outcellhd, 0, 0);
Rast_set_output_window(&outcellhd);
G_message(" ");
G_message(_("Input:"));
G_message(_("Cols: %d (%d)"), incellhd.cols, icols);
G_message(_("Rows: %d (%d)"), incellhd.rows, irows);
G_message(_("North: %f (%f)"), incellhd.north, inorth);
G_message(_("South: %f (%f)"), incellhd.south, isouth);
G_message(_("West: %f (%f)"), incellhd.west, iwest);
G_message(_("East: %f (%f)"), incellhd.east, ieast);
G_message(_("EW-res: %f"), incellhd.ew_res);
G_message(_("NS-res: %f"), incellhd.ns_res);
G_message(" ");
G_message(_("Output:"));
G_message(_("Cols: %d (%d)"), outcellhd.cols, ocols);
G_message(_("Rows: %d (%d)"), outcellhd.rows, orows);
G_message(_("North: %f (%f)"), outcellhd.north, onorth);
G_message(_("South: %f (%f)"), outcellhd.south, osouth);
G_message(_("West: %f (%f)"), outcellhd.west, owest);
G_message(_("East: %f (%f)"), outcellhd.east, oeast);
G_message(_("EW-res: %f"), outcellhd.ew_res);
G_message(_("NS-res: %f"), outcellhd.ns_res);
G_message(" ");
/* open and read the relevant parts of the input map and close it */
G__switch_env();
Rast_set_input_window(&incellhd);
fdi = Rast_open_old(inmap->answer, setname);
cell_type = Rast_get_map_type(fdi);
ibuffer = readcell(fdi, memory->answer);
Rast_close(fdi);
G__switch_env();
Rast_set_output_window(&outcellhd);
if (strcmp(interpol->answer, "nearest") == 0) {
fdo = Rast_open_new(mapname, cell_type);
obuffer = (CELL *) Rast_allocate_output_buf(cell_type);
}
else {
fdo = Rast_open_fp_new(mapname);
cell_type = FCELL_TYPE;
obuffer = (FCELL *) Rast_allocate_output_buf(cell_type);
}
cell_size = Rast_cell_size(cell_type);
xcoord1 = xcoord2 = outcellhd.west + (outcellhd.ew_res / 2);
/**/ ycoord1 = ycoord2 = outcellhd.north - (outcellhd.ns_res / 2);
/**/ G_important_message(_("Projecting..."));
G_percent(0, outcellhd.rows, 2);
for (row = 0; row < outcellhd.rows; row++) {
obufptr = obuffer;
for (col = 0; col < outcellhd.cols; col++) {
/* project coordinates in output matrix to */
/* coordinates in input matrix */
if (pj_do_proj(&xcoord1, &ycoord1, &oproj, &iproj) < 0)
Rast_set_null_value(obufptr, 1, cell_type);
else {
/* convert to row/column indices of input matrix */
col_idx = (xcoord1 - incellhd.west) / incellhd.ew_res;
row_idx = (incellhd.north - ycoord1) / incellhd.ns_res;
/* and resample data point */
interpolate(ibuffer, obufptr, cell_type,
&col_idx, &row_idx, &incellhd);
}
obufptr = G_incr_void_ptr(obufptr, cell_size);
xcoord2 += outcellhd.ew_res;
xcoord1 = xcoord2;
ycoord1 = ycoord2;
}
Rast_put_row(fdo, obuffer, cell_type);
xcoord1 = xcoord2 = outcellhd.west + (outcellhd.ew_res / 2);
ycoord2 -= outcellhd.ns_res;
ycoord1 = ycoord2;
G_percent(row, outcellhd.rows - 1, 2);
}
Rast_close(fdo);
if (have_colors > 0) {
Rast_write_colors(mapname, G_mapset(), &colr);
Rast_free_colors(&colr);
}
Rast_short_history(mapname, "raster", &history);
Rast_command_history(&history);
Rast_write_history(mapname, &history);
G_done_msg(NULL);
exit(EXIT_SUCCESS);
}
int rectify(char *name, char *mapset, struct cache *ebuffer,
double aver_z, char *result, char *interp_method)
{
struct Cell_head cellhd;
int ncols, nrows;
int row, col;
double row_idx, col_idx;
int infd, outfd;
RASTER_MAP_TYPE map_type;
int cell_size;
void *trast, *tptr;
double n1, e1, z1;
double nx, ex, nx1, ex1, zx1;
struct cache *ibuffer;
select_current_env();
Rast_get_cellhd(name, mapset, &cellhd);
/* open the file to be rectified
* set window to cellhd first to be able to read file exactly
*/
Rast_set_input_window(&cellhd);
infd = Rast_open_old(name, mapset);
map_type = Rast_get_map_type(infd);
cell_size = Rast_cell_size(map_type);
ibuffer = readcell(infd, seg_mb_img, 0);
Rast_close(infd); /* (pmx) 17 april 2000 */
G_message(_("Rectify <%s@%s> (location <%s>)"),
name, mapset, G_location());
select_target_env();
G_set_window(&target_window);
G_message(_("into <%s@%s> (location <%s>) ..."),
result, G_mapset(), G_location());
nrows = target_window.rows;
ncols = target_window.cols;
if (strcmp(interp_method, "nearest") != 0) {
map_type = DCELL_TYPE;
cell_size = Rast_cell_size(map_type);
}
/* open the result file into target window
* this open must be first since we change the window later
* raster maps open for writing are not affected by window changes
* but those open for reading are
*/
outfd = Rast_open_new(result, map_type);
trast = Rast_allocate_output_buf(map_type);
for (row = 0; row < nrows; row++) {
n1 = target_window.north - (row + 0.5) * target_window.ns_res;
G_percent(row, nrows, 2);
Rast_set_null_value(trast, ncols, map_type);
tptr = trast;
for (col = 0; col < ncols; col++) {
DCELL *zp = CPTR(ebuffer, row, col);
e1 = target_window.west + (col + 0.5) * target_window.ew_res;
/* if target cell has no elevation, set to aver_z */
if (Rast_is_d_null_value(zp)) {
G_warning(_("No elevation available at row = %d, col = %d"), row, col);
z1 = aver_z;
}
else
z1 = *zp;
/* target coordinates e1, n1 to photo coordinates ex1, nx1 */
I_ortho_ref(e1, n1, z1, &ex1, &nx1, &zx1, &group.camera_ref,
group.XC, group.YC, group.ZC, group.M);
G_debug(5, "\t\tAfter ortho ref (photo cords): ex = %f \t nx = %f",
ex1, nx1);
/* photo coordinates ex1, nx1 to image coordinates ex, nx */
I_georef(ex1, nx1, &ex, &nx, group.E21, group.N21, 1);
G_debug(5, "\t\tAfter geo ref: ex = %f \t nx = %f", ex, nx);
/* convert to row/column indices of source raster */
row_idx = (cellhd.north - nx) / cellhd.ns_res;
col_idx = (ex - cellhd.west) / cellhd.ew_res;
/* resample data point */
interpolate(ibuffer, tptr, map_type, &row_idx, &col_idx, &cellhd);
tptr = G_incr_void_ptr(tptr, cell_size);
}
Rast_put_row(outfd, trast, map_type);
}
G_percent(1, 1, 1);
Rast_close(outfd); /* (pmx) 17 april 2000 */
G_free(trast);
close(ibuffer->fd);
release_cache(ibuffer);
Rast_get_cellhd(result, G_mapset(), &cellhd);
if (cellhd.proj == 0) { /* x,y imagery */
cellhd.proj = target_window.proj;
cellhd.zone = target_window.zone;
}
if (target_window.proj != cellhd.proj) {
cellhd.proj = target_window.proj;
G_warning(_("Raster map <%s@%s>: projection don't match current settings"),
name, mapset);
}
if (target_window.zone != cellhd.zone) {
cellhd.zone = target_window.zone;
G_warning(_("Raster map <%s@%s>: zone don't match current settings"),
name, mapset);
}
select_current_env();
return 1;
}
int main(int argc, char *argv[])
{
char *name, *outfile;
const char *unit;
int unit_id;
double factor;
int fd, projection;
FILE *fp, *coor_fp;
double res;
char *null_string;
char ebuf[256], nbuf[256], label[512], formatbuff[256];
char b1[100], b2[100];
int n;
int havefirst = FALSE;
int coords = 0, i, k = -1;
double e1, e2, n1, n2;
RASTER_MAP_TYPE data_type;
struct Cell_head window;
struct
{
struct Option *opt1, *profile, *res, *output, *null_str, *coord_file, *units;
struct Flag *g, *c, *m;
}
parm;
struct GModule *module;
G_gisinit(argv[0]);
/* Set description */
module = G_define_module();
G_add_keyword(_("raster"));
G_add_keyword(_("profile"));
module->description =
_("Outputs the raster map layer values lying on user-defined line(s).");
parm.opt1 = G_define_standard_option(G_OPT_R_INPUT);
parm.output = G_define_standard_option(G_OPT_F_OUTPUT);
parm.output->required = NO;
parm.output->answer = "-";
parm.output->description =
_("Name of file for output (use output=- for stdout)");
parm.profile = G_define_standard_option(G_OPT_M_COORDS);
parm.profile->required = NO;
parm.profile->multiple = YES;
parm.profile->description = _("Profile coordinate pairs");
parm.coord_file = G_define_standard_option(G_OPT_F_INPUT);
parm.coord_file->key = "file";
parm.coord_file->required = NO;
parm.coord_file->label =
_("Name of input file containing coordinate pairs");
parm.coord_file->description =
_("Use instead of the 'coordinates' option. "
"\"-\" reads from stdin.");
parm.res = G_define_option();
parm.res->key = "resolution";
parm.res->type = TYPE_DOUBLE;
parm.res->required = NO;
parm.res->description =
_("Resolution along profile (default = current region resolution)");
parm.null_str = G_define_option();
parm.null_str->key = "null";
parm.null_str->type = TYPE_STRING;
parm.null_str->required = NO;
parm.null_str->answer = "*";
parm.null_str->description = _("Character to represent no data cell");
parm.g = G_define_flag();
parm.g->key = 'g';
parm.g->description =
_("Output easting and northing in first two columns of four column output");
parm.c = G_define_flag();
parm.c->key = 'c';
parm.c->description =
_("Output RRR:GGG:BBB color values for each profile point");
parm.units = G_define_standard_option(G_OPT_M_UNITS);
parm.units->options = "meters,kilometers,feet,miles";
parm.units->label = parm.units->description;
parm.units->description = _("If units are not specified, current location units are used. "
"Meters are used by default in geographic (latlon) locations.");
if (G_parser(argc, argv))
exit(EXIT_FAILURE);
clr = 0;
if (parm.c->answer)
clr = 1; /* color output */
null_string = parm.null_str->answer;
if ((parm.profile->answer && parm.coord_file->answer) ||
(!parm.profile->answer && !parm.coord_file->answer))
G_fatal_error(_("Either use profile option or coordinate_file "
" option, but not both"));
G_get_window(&window);
projection = G_projection();
/* get conversion factor and units name */
if (parm.units->answer) {
unit_id = G_units(parm.units->answer);
factor = 1. / G_meters_to_units_factor(unit_id);
unit = G_get_units_name(unit_id, 1, 0);
}
/* keep meters in case of latlon */
else if (projection == PROJECTION_LL) {
factor = 1;
unit = "meters";
}
else {
/* get conversion factor to current units */
unit = G_database_unit_name(1);
factor = G_database_units_to_meters_factor();
}
if (parm.res->answer) {
res = atof(parm.res->answer);
/* Catch bad resolution ? */
if (res <= 0)
G_fatal_error(_("Illegal resolution %g [%s]"), res / factor, unit);
}
else {
/* Do average of EW and NS res */
res = (window.ew_res + window.ns_res) / 2;
}
G_message(_("Using resolution: %g [%s]"), res / factor, unit);
G_begin_distance_calculations();
/* Open Input File for reading */
/* Get Input Name */
name = parm.opt1->answer;
if (parm.g->answer)
coords = 1;
/* Open Raster File */
fd = Rast_open_old(name, "");
/* initialize color structure */
if (clr)
Rast_read_colors(name, "", &colors);
/* Open ASCII file for output or stdout */
outfile = parm.output->answer;
if ((strcmp("-", outfile)) == 0) {
fp = stdout;
}
else if (NULL == (fp = fopen(outfile, "w")))
G_fatal_error(_("Unable to open file <%s>"), outfile);
/* Get Raster Type */
data_type = Rast_get_map_type(fd);
/* Done with file */
/* Show message giving output format */
G_message(_("Output columns:"));
if (coords == 1)
sprintf(formatbuff,
_("Easting, Northing, Along track dist. [%s], Elevation"), unit);
else
sprintf(formatbuff, _("Along track dist. [%s], Elevation"), unit);
if (clr)
strcat(formatbuff, _(" RGB color"));
G_message(formatbuff);
/* Get Profile Start Coords */
if (parm.coord_file->answer) {
if (strcmp("-", parm.coord_file->answer) == 0)
coor_fp = stdin;
else
coor_fp = fopen(parm.coord_file->answer, "r");
if (coor_fp == NULL)
G_fatal_error(_("Could not open <%s>"), parm.coord_file->answer);
for (n = 1; input(b1, ebuf, b2, nbuf, label, coor_fp); n++) {
G_debug(4, "stdin line %d: ebuf=[%s] nbuf=[%s]", n, ebuf, nbuf);
if (!G_scan_easting(ebuf, &e2, G_projection()) ||
!G_scan_northing(nbuf, &n2, G_projection()))
G_fatal_error(_("Invalid coordinates %s %s"), ebuf, nbuf);
if (havefirst)
do_profile(e1, e2, n1, n2, coords, res, fd, data_type,
fp, null_string, unit, factor);
e1 = e2;
n1 = n2;
havefirst = TRUE;
}
if (coor_fp != stdin)
fclose(coor_fp);
}
else {
/* Coords given on the Command Line using the profile= option */
for (i = 0; parm.profile->answers[i]; i += 2) {
/* Test for number coordinate pairs */
k = i;
}
if (k == 0) {
/* Only one coordinate pair supplied */
G_scan_easting(parm.profile->answers[0], &e1, G_projection());
G_scan_northing(parm.profile->answers[1], &n1, G_projection());
e2 = e1;
n2 = n1;
/* Get profile info */
do_profile(e1, e2, n1, n2, coords, res, fd, data_type, fp,
null_string, unit, factor);
}
else {
for (i = 0; i <= k - 2; i += 2) {
G_scan_easting(parm.profile->answers[i], &e1, G_projection());
G_scan_northing(parm.profile->answers[i + 1], &n1,
G_projection());
G_scan_easting(parm.profile->answers[i + 2], &e2,
G_projection());
G_scan_northing(parm.profile->answers[i + 3], &n2,
G_projection());
/* Get profile info */
do_profile(e1, e2, n1, n2, coords, res, fd, data_type,
fp, null_string, unit, factor);
}
}
}
Rast_close(fd);
fclose(fp);
if (clr)
Rast_free_colors(&colors);
exit(EXIT_SUCCESS);
} /* Done with main */
int open_file(char *name)
{
int cell_file, buf_len;
int i, row;
CELL *buf;
/* open raster map */
cell_file = Rast_open_old(name, "");
if (Rast_get_map_type(cell_file) != CELL_TYPE) {
Rast_close(cell_file);
G_fatal_error(_("Input raster must be of type CELL."));
}
n_rows = Rast_window_rows();
n_cols = Rast_window_cols();
G_message(_("File %s -- %d rows X %d columns"), name, n_rows, n_cols);
n_cols += (PAD << 1);
/* copy raster map into our read/write file */
work_file_name = G_tempfile();
/* create the file and then open it for read and write */
close(creat(work_file_name, 0666));
if ((work_file = open(work_file_name, 2)) < 0) {
unlink(work_file_name);
G_fatal_error(_("%s: Unable to create temporary file <%s> -- errno = %d"),
error_prefix, work_file_name, errno);
}
buf_len = n_cols * sizeof(CELL);
buf = (CELL *) G_malloc(buf_len);
Rast_set_c_null_value(buf, n_cols);
for (i = 0; i < PAD; i++) {
if (write(work_file, buf, buf_len) != buf_len) {
unlink(work_file_name);
G_fatal_error(_("%s: Error writing temporary file"),
error_prefix);
}
}
for (row = 0; row < n_rows; row++) {
Rast_get_c_row(cell_file, buf + PAD, row);
if (write(work_file, buf, buf_len) != buf_len) {
unlink(work_file_name);
G_fatal_error(_("%s: Error writing temporary file"),
error_prefix);
}
}
Rast_set_c_null_value(buf, n_cols);
for (i = 0; i < PAD; i++) {
if (write(work_file, buf, buf_len) != buf_len) {
unlink(work_file_name);
G_fatal_error(_("%s: Error writing temporary file"),
error_prefix);
}
}
n_rows += (PAD << 1);
G_free(buf);
Rast_close(cell_file);
Rowio_setup(&row_io, work_file, MAX_ROW, n_cols * sizeof(CELL), read_row,
write_row);
return 0;
}
static int load_files(void)
{
void *voidc;
int rtype;
register int i, rowoff, row, col, vxoff, vyoff, offset;
int cnt, fd, size, tsiz, coff;
int vnum;
int y_rows, y_cols;
char *pr, *pg, *pb;
unsigned char *tr, *tg, *tb, *tset;
char *mpfilename, *name;
char *yfiles[MAXIMAGES];
struct Colors colors;
int ret;
size = nrows * ncols;
pr = G_malloc(size);
pg = G_malloc(size);
pb = G_malloc(size);
tsiz = Rast_window_cols();
tr = (unsigned char *)G_malloc(tsiz);
tg = (unsigned char *)G_malloc(tsiz);
tb = (unsigned char *)G_malloc(tsiz);
tset = (unsigned char *)G_malloc(tsiz);
for (cnt = 0; cnt < frames; cnt++) {
if (cnt > MAXIMAGES) {
cnt--;
break;
}
for (i = 0; i < size; i++)
pr[i] = pg[i] = pb[i] = 0;
for (vnum = 0; vnum < numviews; vnum++) {
if (icols == vcols) {
vxoff = BORDER_W;
vyoff = (irows == vrows) ? BORDER_W :
BORDER_W + vnum * (BORDER_W + vrows);
}
else if (irows == vrows) {
vxoff = (icols == vcols) ? BORDER_W :
BORDER_W + vnum * (BORDER_W + vcols);
vyoff = BORDER_W;
}
else { /* 4 views */
/* assumes we want:
view1 view2
view3 view4
*/
vxoff = vnum % 2 ? BORDER_W : vcols + 2 * BORDER_W;
vyoff = vnum > 1 ? vrows + 2 * BORDER_W : BORDER_W;
}
name = vfiles[vnum][cnt];
G_message(_("Reading raster map <%s>..."), name);
fd = Rast_open_old(name, "");
if (Rast_read_colors(name, "", &colors) < 0)
G_fatal_error(_("Unable to read color table for <%s>"), name);
rtype = Rast_get_map_type(fd);
voidc = Rast_allocate_buf(rtype);
for (row = 0; row < vrows; row++) {
Rast_get_row(fd, voidc, (int)(row / vscale), rtype);
rowoff = (vyoff + row) * ncols;
Rast_lookup_colors(voidc, tr, tg, tb,
tset, tsiz, &colors, rtype);
for (col = 0; col < vcols; col++) {
coff = (int)(col / vscale);
offset = rowoff + col + vxoff;
if (!tset[coff])
pr[offset] = pg[offset] = pb[offset] = (char)255;
else {
pr[offset] = (char)tr[coff];
pg[offset] = (char)tg[coff];
pb[offset] = (char)tb[coff];
}
}
}
Rast_close(fd);
}
yfiles[cnt] = G_tempfile();
#ifdef USE_PPM
write_ppm(pr, pg, pb, nrows, ncols, &y_rows, &y_cols, yfiles[cnt]);
#else
write_ycc(pr, pg, pb, nrows, ncols, &y_rows, &y_cols, yfiles[cnt]);
#endif
}
mpfilename = G_tempfile();
write_params(mpfilename, yfiles, outfile, cnt, quality, y_rows, y_cols, 0);
if (G_verbose() <= G_verbose_min())
ret = G_spawn(encoder, encoder, mpfilename,
SF_REDIRECT_FILE, SF_STDOUT, SF_MODE_OUT, G_DEV_NULL,
SF_REDIRECT_FILE, SF_STDERR, SF_MODE_OUT, G_DEV_NULL,
NULL);
else
ret = G_spawn(encoder, encoder, mpfilename, NULL);
if (ret != 0)
G_warning(_("mpeg_encode ERROR"));
clean_files(mpfilename, yfiles, cnt);
G_free(voidc);
G_free(tset);
G_free(tr);
G_free(tg);
G_free(tb);
G_free(pr);
G_free(pg);
G_free(pb);
return (cnt);
}
int main(int argc, char **argv)
{
static DCELL *count, *sum, *mean, *sumu, *sum2, *sum3, *sum4, *min, *max;
DCELL *result;
struct GModule *module;
struct {
struct Option *method, *basemap, *covermap, *output;
} opt;
struct {
struct Flag *c, *r;
} flag;
char methods[2048];
const char *basemap, *covermap, *output;
int usecats;
int reclass;
int base_fd, cover_fd;
struct Categories cats;
CELL *base_buf;
DCELL *cover_buf;
struct Range range;
CELL mincat, ncats;
int method;
int rows, cols;
int row, col, i;
G_gisinit(argv[0]);
module = G_define_module();
G_add_keyword(_("raster"));
G_add_keyword(_("statistics"));
module->description =
_("Calculates category or object oriented statistics (accumulator-based statistics).");
opt.basemap = G_define_standard_option(G_OPT_R_BASE);
opt.covermap = G_define_standard_option(G_OPT_R_COVER);
opt.method = G_define_option();
opt.method->key = "method";
opt.method->type = TYPE_STRING;
opt.method->required = YES;
opt.method->description = _("Method of object-based statistic");
for (i = 0; menu[i].name; i++) {
if (i)
strcat(methods, ",");
else
*(methods) = 0;
strcat(methods, menu[i].name);
}
opt.method->options = G_store(methods);
for (i = 0; menu[i].name; i++) {
if (i)
strcat(methods, ";");
else
*(methods) = 0;
strcat(methods, menu[i].name);
strcat(methods, ";");
strcat(methods, menu[i].text);
}
opt.method->descriptions = G_store(methods);
opt.output = G_define_standard_option(G_OPT_R_OUTPUT);
opt.output->description = _("Resultant raster map");
opt.output->required = YES;
flag.c = G_define_flag();
flag.c->key = 'c';
flag.c->description =
_("Cover values extracted from the category labels of the cover map");
flag.r = G_define_flag();
flag.r->key = 'r';
flag.r->description =
_("Create reclass map with statistics as category labels");
if (G_parser(argc, argv))
exit(EXIT_FAILURE);
basemap = opt.basemap->answer;
covermap = opt.covermap->answer;
output = opt.output->answer;
usecats = flag.c->answer;
reclass = flag.r->answer;
for (i = 0; menu[i].name; i++)
if (strcmp(menu[i].name, opt.method->answer) == 0)
break;
if (!menu[i].name) {
G_warning(_("<%s=%s> unknown %s"), opt.method->key, opt.method->answer,
opt.method->key);
G_usage();
exit(EXIT_FAILURE);
}
method = menu[i].val;
base_fd = Rast_open_old(basemap, "");
cover_fd = Rast_open_old(covermap, "");
if (usecats && Rast_read_cats(covermap, "", &cats) < 0)
G_fatal_error(_("Unable to read category file of cover map <%s>"), covermap);
if (Rast_map_is_fp(basemap, "") != 0)
G_fatal_error(_("The base map must be an integer (CELL) map"));
if (Rast_read_range(basemap, "", &range) < 0)
G_fatal_error(_("Unable to read range of base map <%s>"), basemap);
mincat = range.min;
ncats = range.max - range.min + 1;
rows = Rast_window_rows();
cols = Rast_window_cols();
switch (method) {
case COUNT:
count = G_calloc(ncats, sizeof(DCELL));
break;
case SUM:
sum = G_calloc(ncats, sizeof(DCELL));
break;
case MIN:
min = G_malloc(ncats * sizeof(DCELL));
break;
case MAX:
max = G_malloc(ncats * sizeof(DCELL));
break;
case RANGE:
min = G_malloc(ncats * sizeof(DCELL));
max = G_malloc(ncats * sizeof(DCELL));
break;
case AVERAGE:
case ADEV:
case VARIANCE2:
case STDDEV2:
case SKEWNESS2:
case KURTOSIS2:
count = G_calloc(ncats, sizeof(DCELL));
sum = G_calloc(ncats, sizeof(DCELL));
break;
case VARIANCE1:
case STDDEV1:
count = G_calloc(ncats, sizeof(DCELL));
sum = G_calloc(ncats, sizeof(DCELL));
sum2 = G_calloc(ncats, sizeof(DCELL));
break;
case SKEWNESS1:
count = G_calloc(ncats, sizeof(DCELL));
sum = G_calloc(ncats, sizeof(DCELL));
sum2 = G_calloc(ncats, sizeof(DCELL));
sum3 = G_calloc(ncats, sizeof(DCELL));
break;
case KURTOSIS1:
count = G_calloc(ncats, sizeof(DCELL));
sum = G_calloc(ncats, sizeof(DCELL));
sum2 = G_calloc(ncats, sizeof(DCELL));
sum4 = G_calloc(ncats, sizeof(DCELL));
break;
}
if (min)
for (i = 0; i < ncats; i++)
min[i] = 1e300;
if (max)
for (i = 0; i < ncats; i++)
max[i] = -1e300;
base_buf = Rast_allocate_c_buf();
cover_buf = Rast_allocate_d_buf();
G_message(_("First pass"));
for (row = 0; row < rows; row++) {
Rast_get_c_row(base_fd, base_buf, row);
Rast_get_d_row(cover_fd, cover_buf, row);
for (col = 0; col < cols; col++) {
int n;
DCELL v;
if (Rast_is_c_null_value(&base_buf[col]))
continue;
if (Rast_is_d_null_value(&cover_buf[col]))
continue;
n = base_buf[col] - mincat;
if (n < 0 || n >= ncats)
continue;
v = cover_buf[col];
if (usecats)
sscanf(Rast_get_c_cat((CELL *) &v, &cats), "%lf", &v);
if (count)
count[n]++;
if (sum)
sum[n] += v;
if (sum2)
sum2[n] += v * v;
if (sum3)
sum3[n] += v * v * v;
if (sum4)
sum4[n] += v * v * v * v;
if (min && min[n] > v)
min[n] = v;
if (max && max[n] < v)
max[n] = v;
}
G_percent(row, rows, 2);
}
G_percent(row, rows, 2);
result = G_calloc(ncats, sizeof(DCELL));
switch (method) {
case ADEV:
case VARIANCE2:
case STDDEV2:
case SKEWNESS2:
case KURTOSIS2:
mean = G_calloc(ncats, sizeof(DCELL));
for (i = 0; i < ncats; i++)
mean[i] = sum[i] / count[i];
G_free(sum);
break;
}
switch (method) {
case ADEV:
sumu = G_calloc(ncats, sizeof(DCELL));
break;
case VARIANCE2:
case STDDEV2:
sum2 = G_calloc(ncats, sizeof(DCELL));
break;
case SKEWNESS2:
sum2 = G_calloc(ncats, sizeof(DCELL));
sum3 = G_calloc(ncats, sizeof(DCELL));
break;
case KURTOSIS2:
sum2 = G_calloc(ncats, sizeof(DCELL));
sum4 = G_calloc(ncats, sizeof(DCELL));
break;
}
if (mean) {
G_message(_("Second pass"));
for (row = 0; row < rows; row++) {
Rast_get_c_row(base_fd, base_buf, row);
Rast_get_d_row(cover_fd, cover_buf, row);
for (col = 0; col < cols; col++) {
int n;
DCELL v, d;
if (Rast_is_c_null_value(&base_buf[col]))
continue;
if (Rast_is_d_null_value(&cover_buf[col]))
continue;
n = base_buf[col] - mincat;
if (n < 0 || n >= ncats)
continue;
v = cover_buf[col];
if (usecats)
sscanf(Rast_get_c_cat((CELL *) &v, &cats), "%lf", &v);
d = v - mean[n];
if (sumu)
sumu[n] += fabs(d);
if (sum2)
sum2[n] += d * d;
if (sum3)
sum3[n] += d * d * d;
if (sum4)
sum4[n] += d * d * d * d;
}
G_percent(row, rows, 2);
}
G_percent(row, rows, 2);
G_free(mean);
G_free(cover_buf);
}
switch (method) {
case COUNT:
for (i = 0; i < ncats; i++)
result[i] = count[i];
break;
case SUM:
for (i = 0; i < ncats; i++)
result[i] = sum[i];
break;
case AVERAGE:
for (i = 0; i < ncats; i++)
result[i] = sum[i] / count[i];
break;
case MIN:
for (i = 0; i < ncats; i++)
result[i] = min[i];
break;
case MAX:
for (i = 0; i < ncats; i++)
result[i] = max[i];
break;
case RANGE:
for (i = 0; i < ncats; i++)
result[i] = max[i] - min[i];
break;
case VARIANCE1:
for (i = 0; i < ncats; i++) {
double n = count[i];
double var = (sum2[i] - sum[i] * sum[i] / n) / (n - 1);
result[i] = var;
}
break;
case STDDEV1:
for (i = 0; i < ncats; i++) {
double n = count[i];
double var = (sum2[i] - sum[i] * sum[i] / n) / (n - 1);
result[i] = sqrt(var);
}
break;
case SKEWNESS1:
for (i = 0; i < ncats; i++) {
double n = count[i];
double var = (sum2[i] - sum[i] * sum[i] / n) / (n - 1);
double skew = (sum3[i] / n
- 3 * sum[i] * sum2[i] / (n * n)
+ 2 * sum[i] * sum[i] * sum[i] / (n * n * n))
/ (pow(var, 1.5));
result[i] = skew;
}
break;
case KURTOSIS1:
for (i = 0; i < ncats; i++) {
double n = count[i];
double var = (sum2[i] - sum[i] * sum[i] / n) / (n - 1);
double kurt = (sum4[i] / n
- 4 * sum[i] * sum3[i] / (n * n)
+ 6 * sum[i] * sum[i] * sum2[i] / (n * n * n)
- 3 * sum[i] * sum[i] * sum[i] * sum[i] / (n * n * n * n))
/ (var * var) - 3;
result[i] = kurt;
}
break;
case ADEV:
for (i = 0; i < ncats; i++)
result[i] = sumu[i] / count[i];
break;
case VARIANCE2:
for (i = 0; i < ncats; i++)
result[i] = sum2[i] / (count[i] - 1);
break;
case STDDEV2:
for (i = 0; i < ncats; i++)
result[i] = sqrt(sum2[i] / (count[i] - 1));
break;
case SKEWNESS2:
for (i = 0; i < ncats; i++) {
double n = count[i];
double var = sum2[i] / (n - 1);
double sdev = sqrt(var);
result[i] = sum3[i] / (sdev * sdev * sdev) / n;
}
G_free(count);
G_free(sum2);
G_free(sum3);
break;
case KURTOSIS2:
for (i = 0; i < ncats; i++) {
double n = count[i];
double var = sum2[i] / (n - 1);
result[i] = sum4[i] / (var * var) / n - 3;
}
G_free(count);
G_free(sum2);
G_free(sum4);
break;
}
if (reclass) {
const char *tempfile = G_tempfile();
char *input_arg = G_malloc(strlen(basemap) + 7);
char *output_arg = G_malloc(strlen(output) + 8);
char *rules_arg = G_malloc(strlen(tempfile) + 7);
FILE *fp;
G_message(_("Generating reclass map"));
sprintf(input_arg, "input=%s", basemap);
sprintf(output_arg, "output=%s", output);
sprintf(rules_arg, "rules=%s", tempfile);
fp = fopen(tempfile, "w");
if (!fp)
G_fatal_error(_("Unable to open temporary file"));
for (i = 0; i < ncats; i++)
fprintf(fp, "%d = %d %f\n", mincat + i, mincat + i, result[i]);
fclose(fp);
G_spawn("r.reclass", "r.reclass", input_arg, output_arg, rules_arg, NULL);
}
else {
int out_fd;
DCELL *out_buf;
struct Colors colors;
G_message(_("Writing output map"));
out_fd = Rast_open_fp_new(output);
out_buf = Rast_allocate_d_buf();
for (row = 0; row < rows; row++) {
Rast_get_c_row(base_fd, base_buf, row);
for (col = 0; col < cols; col++)
if (Rast_is_c_null_value(&base_buf[col]))
Rast_set_d_null_value(&out_buf[col], 1);
else
out_buf[col] = result[base_buf[col] - mincat];
Rast_put_d_row(out_fd, out_buf);
G_percent(row, rows, 2);
}
G_percent(row, rows, 2);
Rast_close(out_fd);
if (Rast_read_colors(covermap, "", &colors) > 0)
Rast_write_colors(output, G_mapset(), &colors);
}
return 0;
}
