QString GRASS_EXPORT QgsGrass::regionString( struct Cell_head *window )
{
QString reg;
int fmt;
char buf[1024];
fmt = window->proj;
// TODO 3D
reg = "proj:" + QString::number( window->proj ) + ";" ;
reg += "zone:" + QString::number( window->zone ) + ";" ;
G_format_northing( window->north, buf, fmt );
reg += "north:" + QString( buf ) + ";" ;
G_format_northing( window->south, buf, fmt );
reg += "south:" + QString( buf ) + ";" ;
G_format_easting( window->east, buf, fmt );
reg += "east:" + QString( buf ) + ";" ;
G_format_easting( window->west, buf, fmt );
reg += "west:" + QString( buf ) + ";" ;
reg += "cols:" + QString::number( window->cols ) + ";" ;
reg += "rows:" + QString::number( window->rows ) + ";" ;
G_format_resolution( window->ew_res, buf, fmt );
reg += "e-w resol:" + QString( buf ) + ";" ;
G_format_resolution( window->ns_res, buf, fmt );
reg += "n-s resol:" + QString( buf ) + ";" ;
return reg;
}
int main(int argc, char **argv)
{
struct Flag *printattributes, *topo_flag, *shell_flag;
struct Option *opt1, *coords_opt, *maxdistance;
struct Cell_head window;
struct GModule *module;
char *mapset;
char *str;
char buf[2000];
int i, j, level, width = 0, mwidth = 0, ret;
double xval, yval, xres, yres, maxd, x;
double EW_DIST1, EW_DIST2, NS_DIST1, NS_DIST2;
char nsres[30], ewres[30];
char ch;
/* Initialize the GIS calls */
G_gisinit(argv[0]);
module = G_define_module();
module->keywords = _("vector, querying");
module->description = _("Queries a vector map layer at given locations.");
opt1 = G_define_standard_option(G_OPT_V_MAP);
opt1->multiple = YES;
opt1->required = YES;
coords_opt = G_define_option();
coords_opt->key = "east_north";
coords_opt->type = TYPE_DOUBLE;
coords_opt->key_desc = "east,north";
coords_opt->required = NO;
coords_opt->multiple = YES;
coords_opt->label = _("Coordinates for query");
coords_opt->description = _("If not given reads from standard input");
maxdistance = G_define_option();
maxdistance->type = TYPE_DOUBLE;
maxdistance->key = "distance";
maxdistance->answer = "0";
maxdistance->multiple = NO;
maxdistance->description = _("Query threshold distance");
topo_flag = G_define_flag();
topo_flag->key = 'd';
topo_flag->description = _("Print topological information (debugging)");
printattributes = G_define_flag();
printattributes->key = 'a';
printattributes->description = _("Print attribute information");
shell_flag = G_define_flag();
shell_flag->key = 'g';
shell_flag->description = _("Print the stats in shell script style");
if ((argc > 1 || !vect) && G_parser(argc, argv))
exit(EXIT_FAILURE);
if (opt1->answers && opt1->answers[0])
vect = opt1->answers;
maxd = atof(maxdistance->answer);
/*
* fprintf(stdout, maxdistance->answer);
* fprintf(stdout, "Maxd is %f", maxd);
* fprintf(stdout, xcoord->answer);
* fprintf(stdout, "xval is %f", xval);
* fprintf(stdout, ycoord->answer);
* fprintf(stdout, "yval is %f", yval);
*/
if (maxd == 0.0) {
G_get_window(&window);
x = window.proj;
G_format_resolution(window.ew_res, ewres, x);
G_format_resolution(window.ns_res, nsres, x);
EW_DIST1 =
G_distance(window.east, window.north, window.west, window.north);
/* EW Dist at South Edge */
EW_DIST2 =
G_distance(window.east, window.south, window.west, window.south);
/* NS Dist at East edge */
NS_DIST1 =
G_distance(window.east, window.north, window.east, window.south);
/* NS Dist at West edge */
NS_DIST2 =
G_distance(window.west, window.north, window.west, window.south);
xres = ((EW_DIST1 + EW_DIST2) / 2) / window.cols;
yres = ((NS_DIST1 + NS_DIST2) / 2) / window.rows;
if (xres > yres)
maxd = xres;
else
maxd = yres;
}
/* Look at maps given on command line */
if (vect) {
for (i = 0; vect[i]; i++) ;
nvects = i;
Map = (struct Map_info *)G_malloc(nvects * sizeof(struct Map_info));
width = mwidth = 0;
for (i = 0; i < nvects; i++) {
str = strchr(vect[i], '@');
if (str)
j = str - vect[i];
else
j = strlen(vect[i]);
if (j > width)
width = j;
mapset = G_find_vector2(vect[i], "");
if (!mapset)
G_fatal_error(_("Vector map <%s> not found"), vect[i]);
j = strlen(mapset);
if (j > mwidth)
mwidth = j;
level = Vect_open_old(&Map[i], vect[i], mapset);
if (level < 2)
G_fatal_error(_("You must build topology on vector map <%s>"),
vect[i]);
G_verbose_message(_("Building spatial index..."));
Vect_build_spatial_index(&Map[i]);
}
}
if (!coords_opt->answer) {
/* if coords are not given on command line, read them from stdin */
setvbuf(stdin, NULL, _IOLBF, 0);
setvbuf(stdout, NULL, _IOLBF, 0);
while (fgets(buf, sizeof(buf), stdin) != NULL) {
ret = sscanf(buf, "%lf%c%lf", &xval, &ch, &yval);
if (ret == 3 && (ch == ',' || ch == ' ' || ch == '\t')) {
what(xval, yval, maxd, width, mwidth, topo_flag->answer,
printattributes->answer, shell_flag->answer);
}
else {
G_warning(_("Unknown input format, skipping: '%s'"), buf);
continue;
}
}
}
else {
/* use coords given on command line */
for (i = 0; coords_opt->answers[i] != NULL; i += 2) {
xval = atof(coords_opt->answers[i]);
yval = atof(coords_opt->answers[i + 1]);
what(xval, yval, maxd, width, mwidth, topo_flag->answer,
printattributes->answer, shell_flag->answer);
}
}
for (i = 0; i < nvects; i++)
Vect_close(&Map[i]);
exit(EXIT_SUCCESS);
}
int main(int argc, char **argv)
{
struct Flag *printattributes, *topo_flag, *shell_flag;
struct Option *map_opt, *field_opt, *coords_opt, *maxdistance;
struct Cell_head window;
struct GModule *module;
char buf[2000];
int i, level, ret;
int *field;
double xval, yval, xres, yres, maxd, x;
double EW_DIST1, EW_DIST2, NS_DIST1, NS_DIST2;
char nsres[30], ewres[30];
char ch;
/* Initialize the GIS calls */
G_gisinit(argv[0]);
module = G_define_module();
G_add_keyword(_("vector"));
G_add_keyword(_("position"));
G_add_keyword(_("querying"));
module->description = _("Queries a vector map at given locations.");
map_opt = G_define_standard_option(G_OPT_V_MAPS);
field_opt = G_define_standard_option(G_OPT_V_FIELD_ALL);
coords_opt = G_define_standard_option(G_OPT_M_EN);
coords_opt->label = _("Coordinates for query");
coords_opt->description = _("If not given read from standard input");
maxdistance = G_define_option();
maxdistance->type = TYPE_DOUBLE;
maxdistance->key = "distance";
maxdistance->answer = "0";
maxdistance->multiple = NO;
maxdistance->description = _("Query threshold distance");
topo_flag = G_define_flag();
topo_flag->key = 'd';
topo_flag->description = _("Print topological information (debugging)");
topo_flag->guisection = _("Print");
printattributes = G_define_flag();
printattributes->key = 'a';
printattributes->description = _("Print attribute information");
printattributes->guisection = _("Print");
shell_flag = G_define_flag();
shell_flag->key = 'g';
shell_flag->description = _("Print the stats in shell script style");
shell_flag->guisection = _("Print");
if (G_parser(argc, argv))
exit(EXIT_FAILURE);
if (map_opt->answers && map_opt->answers[0])
vect = map_opt->answers;
maxd = atof(maxdistance->answer);
/*
* fprintf(stdout, maxdistance->answer);
* fprintf(stdout, "Maxd is %f", maxd);
* fprintf(stdout, xcoord->answer);
* fprintf(stdout, "xval is %f", xval);
* fprintf(stdout, ycoord->answer);
* fprintf(stdout, "yval is %f", yval);
*/
if (maxd == 0.0) {
G_get_window(&window);
x = window.proj;
G_format_resolution(window.ew_res, ewres, x);
G_format_resolution(window.ns_res, nsres, x);
EW_DIST1 =
G_distance(window.east, window.north, window.west, window.north);
/* EW Dist at South Edge */
EW_DIST2 =
G_distance(window.east, window.south, window.west, window.south);
/* NS Dist at East edge */
NS_DIST1 =
G_distance(window.east, window.north, window.east, window.south);
/* NS Dist at West edge */
NS_DIST2 =
G_distance(window.west, window.north, window.west, window.south);
xres = ((EW_DIST1 + EW_DIST2) / 2) / window.cols;
yres = ((NS_DIST1 + NS_DIST2) / 2) / window.rows;
if (xres > yres)
maxd = xres;
else
maxd = yres;
}
/* Look at maps given on command line */
if (vect) {
for (i = 0; vect[i]; i++)
;
nvects = i;
for (i = 0; field_opt->answers[i]; i++)
;
if (nvects != i)
G_fatal_error(_("Number of given vector maps (%d) differs from number of layers (%d)"),
nvects, i);
Map = (struct Map_info *) G_malloc(nvects * sizeof(struct Map_info));
field = (int *) G_malloc(nvects * sizeof(int));
for (i = 0; i < nvects; i++) {
level = Vect_open_old2(&Map[i], vect[i], "", field_opt->answers[i]);
if (level < 2)
G_fatal_error(_("You must build topology on vector map <%s>"),
vect[i]);
field[i] = Vect_get_field_number(&Map[i], field_opt->answers[i]);
}
}
if (!coords_opt->answer) {
/* read them from stdin */
setvbuf(stdin, NULL, _IOLBF, 0);
setvbuf(stdout, NULL, _IOLBF, 0);
while (fgets(buf, sizeof(buf), stdin) != NULL) {
ret = sscanf(buf, "%lf%c%lf", &xval, &ch, &yval);
if (ret == 3 && (ch == ',' || ch == ' ' || ch == '\t')) {
what(xval, yval, maxd, topo_flag->answer,
printattributes->answer, shell_flag->answer, field);
}
else {
G_warning(_("Unknown input format, skipping: '%s'"), buf);
continue;
}
}
}
else {
/* use coords given on command line */
for (i = 0; coords_opt->answers[i] != NULL; i += 2) {
xval = atof(coords_opt->answers[i]);
yval = atof(coords_opt->answers[i + 1]);
what(xval, yval, maxd, topo_flag->answer,
printattributes->answer, shell_flag->answer, field);
}
}
for (i = 0; i < nvects; i++)
Vect_close(&Map[i]);
exit(EXIT_SUCCESS);
}
int main(int argc, char *argv[])
{
struct GModule *module;
struct
{
struct Option *rastin, *rastout, *method, *quantile;
} parm;
struct
{
struct Flag *nulls, *weight;
} flag;
struct History history;
char title[64];
char buf_nsres[100], buf_ewres[100];
struct Colors colors;
int row;
G_gisinit(argv[0]);
module = G_define_module();
G_add_keyword(_("raster"));
G_add_keyword(_("resample"));
module->description =
_("Resamples raster map layers to a coarser grid using aggregation.");
parm.rastin = G_define_standard_option(G_OPT_R_INPUT);
parm.rastout = G_define_standard_option(G_OPT_R_OUTPUT);
parm.method = G_define_option();
parm.method->key = "method";
parm.method->type = TYPE_STRING;
parm.method->required = NO;
parm.method->description = _("Aggregation method");
parm.method->options = build_method_list();
parm.method->answer = "average";
parm.quantile = G_define_option();
parm.quantile->key = "quantile";
parm.quantile->type = TYPE_DOUBLE;
parm.quantile->required = NO;
parm.quantile->description = _("Quantile to calculate for method=quantile");
parm.quantile->options = "0.0-1.0";
parm.quantile->answer = "0.5";
flag.nulls = G_define_flag();
flag.nulls->key = 'n';
flag.nulls->description = _("Propagate NULLs");
flag.weight = G_define_flag();
flag.weight->key = 'w';
flag.weight->description = _("Weight according to area (slower)");
if (G_parser(argc, argv))
exit(EXIT_FAILURE);
nulls = flag.nulls->answer;
method = find_method(parm.method->answer);
if (method < 0)
G_fatal_error(_("Unknown method <%s>"), parm.method->answer);
if (menu[method].method == c_quant) {
quantile = atoi(parm.quantile->answer);
closure = &quantile;
}
G_get_set_window(&dst_w);
/* set window to old map */
Rast_get_cellhd(parm.rastin->answer, "", &src_w);
/* enlarge source window */
{
int r0 = (int)floor(Rast_northing_to_row(dst_w.north, &src_w));
int r1 = (int)ceil(Rast_northing_to_row(dst_w.south, &src_w));
int c0 = (int)floor(Rast_easting_to_col(dst_w.west, &src_w));
int c1 = (int)ceil(Rast_easting_to_col(dst_w.east, &src_w));
src_w.south -= src_w.ns_res * (r1 - src_w.rows);
src_w.north += src_w.ns_res * (-r0);
src_w.west -= src_w.ew_res * (-c0);
src_w.east += src_w.ew_res * (c1 - src_w.cols);
src_w.rows = r1 - r0;
src_w.cols = c1 - c0;
}
Rast_set_input_window(&src_w);
Rast_set_output_window(&dst_w);
row_scale = 2 + ceil(dst_w.ns_res / src_w.ns_res);
col_scale = 2 + ceil(dst_w.ew_res / src_w.ew_res);
/* allocate buffers for input rows */
bufs = G_malloc(row_scale * sizeof(DCELL *));
for (row = 0; row < row_scale; row++)
bufs[row] = Rast_allocate_d_input_buf();
/* open old map */
infile = Rast_open_old(parm.rastin->answer, "");
/* allocate output buffer */
outbuf = Rast_allocate_d_output_buf();
/* open new map */
outfile = Rast_open_new(parm.rastout->answer, DCELL_TYPE);
if (flag.weight->answer && menu[method].method_w)
resamp_weighted();
else
resamp_unweighted();
G_percent(dst_w.rows, dst_w.rows, 2);
Rast_close(infile);
Rast_close(outfile);
/* record map metadata/history info */
sprintf(title, "Aggregate resample by %s", parm.method->answer);
Rast_put_cell_title(parm.rastout->answer, title);
Rast_short_history(parm.rastout->answer, "raster", &history);
Rast_set_history(&history, HIST_DATSRC_1, parm.rastin->answer);
G_format_resolution(src_w.ns_res, buf_nsres, src_w.proj);
G_format_resolution(src_w.ew_res, buf_ewres, src_w.proj);
Rast_format_history(&history, HIST_DATSRC_2,
"Source map NS res: %s EW res: %s",
buf_nsres, buf_ewres);
Rast_command_history(&history);
Rast_write_history(parm.rastout->answer, &history);
/* copy color table from source map */
if (strcmp(parm.method->answer, "sum") != 0) {
if (Rast_read_colors(parm.rastin->answer, "", &colors) < 0)
G_fatal_error(_("Unable to read color table for %s"),
parm.rastin->answer);
Rast_mark_colors_as_fp(&colors);
Rast_write_colors(parm.rastout->answer, G_mapset(), &colors);
}
return (EXIT_SUCCESS);
}
int main(int argc, char *argv[])
{
struct GModule *module;
struct Option *rastin, *rastout, *method;
struct History history;
char title[64];
char buf_nsres[100], buf_ewres[100];
struct Colors colors;
char *inmap;
int infile, outfile;
DCELL *outbuf;
int row, col;
struct Cell_head dst_w, src_w;
G_gisinit(argv[0]);
module = G_define_module();
module->keywords = _("raster, resample");
module->description =
_("Resamples raster map layers to a finer grid using interpolation.");
rastin = G_define_standard_option(G_OPT_R_INPUT);
rastout = G_define_standard_option(G_OPT_R_OUTPUT);
method = G_define_option();
method->key = "method";
method->type = TYPE_STRING;
method->required = NO;
method->description = _("Interpolation method");
method->options = "nearest,bilinear,bicubic";
method->answer = "bilinear";
if (G_parser(argc, argv))
exit(EXIT_FAILURE);
if (G_strcasecmp(method->answer, "nearest") == 0)
neighbors = 1;
else if (G_strcasecmp(method->answer, "bilinear") == 0)
neighbors = 2;
else if (G_strcasecmp(method->answer, "bicubic") == 0)
neighbors = 4;
else
G_fatal_error(_("Invalid method: %s"), method->answer);
G_get_set_window(&dst_w);
inmap = G_find_cell2(rastin->answer, "");
if (!inmap)
G_fatal_error(_("Raster map <%s> not found"), rastin->answer);
/* set window to old map */
G_get_cellhd(rastin->answer, inmap, &src_w);
/* enlarge source window */
{
double north = G_row_to_northing(0.5, &dst_w);
double south = G_row_to_northing(dst_w.rows - 0.5, &dst_w);
int r0 = (int)floor(G_northing_to_row(north, &src_w) - 0.5) - 1;
int r1 = (int)floor(G_northing_to_row(south, &src_w) - 0.5) + 3;
double west = G_col_to_easting(0.5, &dst_w);
double east = G_col_to_easting(dst_w.cols - 0.5, &dst_w);
int c0 = (int)floor(G_easting_to_col(west, &src_w) - 0.5) - 1;
int c1 = (int)floor(G_easting_to_col(east, &src_w) - 0.5) + 3;
src_w.south -= src_w.ns_res * (r1 - src_w.rows);
src_w.north += src_w.ns_res * (-r0);
src_w.west -= src_w.ew_res * (-c0);
src_w.east += src_w.ew_res * (c1 - src_w.cols);
src_w.rows = r1 - r0;
src_w.cols = c1 - c0;
}
G_set_window(&src_w);
/* allocate buffers for input rows */
for (row = 0; row < neighbors; row++)
bufs[row] = G_allocate_d_raster_buf();
cur_row = -100;
/* open old map */
infile = G_open_cell_old(rastin->answer, inmap);
if (infile < 0)
G_fatal_error(_("Unable to open raster map <%s>"), rastin->answer);
/* reset window to current region */
G_set_window(&dst_w);
outbuf = G_allocate_d_raster_buf();
/* open new map */
outfile = G_open_raster_new(rastout->answer, DCELL_TYPE);
if (outfile < 0)
G_fatal_error(_("Unable to create raster map <%s>"), rastout->answer);
G_suppress_warnings(1);
/* otherwise get complaints about window changes */
switch (neighbors) {
case 1: /* nearest */
for (row = 0; row < dst_w.rows; row++) {
double north = G_row_to_northing(row + 0.5, &dst_w);
double maprow_f = G_northing_to_row(north, &src_w) - 0.5;
int maprow0 = (int)floor(maprow_f + 0.5);
G_percent(row, dst_w.rows, 2);
G_set_window(&src_w);
read_rows(infile, maprow0);
for (col = 0; col < dst_w.cols; col++) {
double east = G_col_to_easting(col + 0.5, &dst_w);
double mapcol_f = G_easting_to_col(east, &src_w) - 0.5;
int mapcol0 = (int)floor(mapcol_f + 0.5);
double c = bufs[0][mapcol0];
if (G_is_d_null_value(&c)) {
G_set_d_null_value(&outbuf[col], 1);
}
else {
outbuf[col] = c;
}
}
G_set_window(&dst_w);
G_put_d_raster_row(outfile, outbuf);
}
break;
case 2: /* bilinear */
for (row = 0; row < dst_w.rows; row++) {
double north = G_row_to_northing(row + 0.5, &dst_w);
double maprow_f = G_northing_to_row(north, &src_w) - 0.5;
int maprow0 = (int)floor(maprow_f);
double v = maprow_f - maprow0;
G_percent(row, dst_w.rows, 2);
G_set_window(&src_w);
read_rows(infile, maprow0);
for (col = 0; col < dst_w.cols; col++) {
double east = G_col_to_easting(col + 0.5, &dst_w);
double mapcol_f = G_easting_to_col(east, &src_w) - 0.5;
int mapcol0 = (int)floor(mapcol_f);
int mapcol1 = mapcol0 + 1;
double u = mapcol_f - mapcol0;
double c00 = bufs[0][mapcol0];
double c01 = bufs[0][mapcol1];
double c10 = bufs[1][mapcol0];
double c11 = bufs[1][mapcol1];
if (G_is_d_null_value(&c00) ||
G_is_d_null_value(&c01) ||
G_is_d_null_value(&c10) || G_is_d_null_value(&c11)) {
G_set_d_null_value(&outbuf[col], 1);
}
else {
outbuf[col] = G_interp_bilinear(u, v, c00, c01, c10, c11);
}
}
G_set_window(&dst_w);
G_put_d_raster_row(outfile, outbuf);
}
break;
case 4: /* bicubic */
for (row = 0; row < dst_w.rows; row++) {
double north = G_row_to_northing(row + 0.5, &dst_w);
double maprow_f = G_northing_to_row(north, &src_w) - 0.5;
int maprow1 = (int)floor(maprow_f);
int maprow0 = maprow1 - 1;
double v = maprow_f - maprow1;
G_percent(row, dst_w.rows, 2);
G_set_window(&src_w);
read_rows(infile, maprow0);
for (col = 0; col < dst_w.cols; col++) {
double east = G_col_to_easting(col + 0.5, &dst_w);
double mapcol_f = G_easting_to_col(east, &src_w) - 0.5;
int mapcol1 = (int)floor(mapcol_f);
int mapcol0 = mapcol1 - 1;
int mapcol2 = mapcol1 + 1;
int mapcol3 = mapcol1 + 2;
double u = mapcol_f - mapcol1;
double c00 = bufs[0][mapcol0];
double c01 = bufs[0][mapcol1];
double c02 = bufs[0][mapcol2];
double c03 = bufs[0][mapcol3];
double c10 = bufs[1][mapcol0];
double c11 = bufs[1][mapcol1];
double c12 = bufs[1][mapcol2];
double c13 = bufs[1][mapcol3];
double c20 = bufs[2][mapcol0];
double c21 = bufs[2][mapcol1];
double c22 = bufs[2][mapcol2];
double c23 = bufs[2][mapcol3];
double c30 = bufs[3][mapcol0];
double c31 = bufs[3][mapcol1];
double c32 = bufs[3][mapcol2];
double c33 = bufs[3][mapcol3];
if (G_is_d_null_value(&c00) ||
G_is_d_null_value(&c01) ||
G_is_d_null_value(&c02) ||
G_is_d_null_value(&c03) ||
G_is_d_null_value(&c10) ||
G_is_d_null_value(&c11) ||
G_is_d_null_value(&c12) ||
G_is_d_null_value(&c13) ||
G_is_d_null_value(&c20) ||
G_is_d_null_value(&c21) ||
G_is_d_null_value(&c22) ||
G_is_d_null_value(&c23) ||
G_is_d_null_value(&c30) ||
G_is_d_null_value(&c31) ||
G_is_d_null_value(&c32) || G_is_d_null_value(&c33)) {
G_set_d_null_value(&outbuf[col], 1);
}
else {
outbuf[col] = G_interp_bicubic(u, v,
c00, c01, c02, c03,
c10, c11, c12, c13,
c20, c21, c22, c23,
c30, c31, c32, c33);
}
}
G_set_window(&dst_w);
G_put_d_raster_row(outfile, outbuf);
}
break;
}
G_percent(dst_w.rows, dst_w.rows, 2);
G_close_cell(infile);
G_close_cell(outfile);
/* record map metadata/history info */
sprintf(title, "Resample by %s interpolation", method->answer);
G_put_cell_title(rastout->answer, title);
G_short_history(rastout->answer, "raster", &history);
strncpy(history.datsrc_1, rastin->answer, RECORD_LEN);
history.datsrc_1[RECORD_LEN - 1] = '\0'; /* strncpy() doesn't null terminate if maxfill */
G_format_resolution(src_w.ns_res, buf_nsres, src_w.proj);
G_format_resolution(src_w.ew_res, buf_ewres, src_w.proj);
sprintf(history.datsrc_2, "Source map NS res: %s EW res: %s", buf_nsres,
buf_ewres);
G_command_history(&history);
G_write_history(rastout->answer, &history);
/* copy color table from source map */
if (G_read_colors(rastin->answer, inmap, &colors) < 0)
G_fatal_error(_("Unable to read color table for %s"), rastin->answer);
G_mark_colors_as_fp(&colors);
if (G_write_colors(rastout->answer, G_mapset(), &colors) < 0)
G_fatal_error(_("Unable to write color table for %s"),
rastout->answer);
return (EXIT_SUCCESS);
}
int main(int argc, char *argv[])
{
struct GModule *module;
struct Option *rastin, *rastout, *method;
struct History history;
char title[64];
char buf_nsres[100], buf_ewres[100];
struct Colors colors;
int infile, outfile;
DCELL *outbuf;
int row, col;
struct Cell_head dst_w, src_w;
G_gisinit(argv[0]);
module = G_define_module();
G_add_keyword(_("raster"));
G_add_keyword(_("resample"));
module->description =
_("Resamples raster map layers to a finer grid using interpolation.");
rastin = G_define_standard_option(G_OPT_R_INPUT);
rastout = G_define_standard_option(G_OPT_R_OUTPUT);
method = G_define_option();
method->key = "method";
method->type = TYPE_STRING;
method->required = NO;
method->description = _("Interpolation method");
method->options = "nearest,bilinear,bicubic,lanczos";
method->answer = "bilinear";
if (G_parser(argc, argv))
exit(EXIT_FAILURE);
if (G_strcasecmp(method->answer, "nearest") == 0)
neighbors = 1;
else if (G_strcasecmp(method->answer, "bilinear") == 0)
neighbors = 2;
else if (G_strcasecmp(method->answer, "bicubic") == 0)
neighbors = 4;
else if (G_strcasecmp(method->answer, "lanczos") == 0)
neighbors = 5;
else
G_fatal_error(_("Invalid method: %s"), method->answer);
G_get_set_window(&dst_w);
/* set window to old map */
Rast_get_cellhd(rastin->answer, "", &src_w);
/* enlarge source window */
{
double north = Rast_row_to_northing(0.5, &dst_w);
double south = Rast_row_to_northing(dst_w.rows - 0.5, &dst_w);
int r0 = (int)floor(Rast_northing_to_row(north, &src_w) - 0.5) - 2;
int r1 = (int)floor(Rast_northing_to_row(south, &src_w) - 0.5) + 3;
double west = Rast_col_to_easting(0.5, &dst_w);
double east = Rast_col_to_easting(dst_w.cols - 0.5, &dst_w);
int c0 = (int)floor(Rast_easting_to_col(west, &src_w) - 0.5) - 2;
int c1 = (int)floor(Rast_easting_to_col(east, &src_w) - 0.5) + 3;
src_w.south -= src_w.ns_res * (r1 - src_w.rows);
src_w.north += src_w.ns_res * (-r0);
src_w.west -= src_w.ew_res * (-c0);
src_w.east += src_w.ew_res * (c1 - src_w.cols);
src_w.rows = r1 - r0;
src_w.cols = c1 - c0;
}
Rast_set_input_window(&src_w);
/* allocate buffers for input rows */
for (row = 0; row < neighbors; row++)
bufs[row] = Rast_allocate_d_input_buf();
cur_row = -100;
/* open old map */
infile = Rast_open_old(rastin->answer, "");
/* reset window to current region */
Rast_set_output_window(&dst_w);
outbuf = Rast_allocate_d_output_buf();
/* open new map */
outfile = Rast_open_new(rastout->answer, DCELL_TYPE);
switch (neighbors) {
case 1: /* nearest */
for (row = 0; row < dst_w.rows; row++) {
double north = Rast_row_to_northing(row + 0.5, &dst_w);
double maprow_f = Rast_northing_to_row(north, &src_w) - 0.5;
int maprow0 = (int)floor(maprow_f + 0.5);
G_percent(row, dst_w.rows, 2);
read_rows(infile, maprow0);
for (col = 0; col < dst_w.cols; col++) {
double east = Rast_col_to_easting(col + 0.5, &dst_w);
double mapcol_f = Rast_easting_to_col(east, &src_w) - 0.5;
int mapcol0 = (int)floor(mapcol_f + 0.5);
double c = bufs[0][mapcol0];
if (Rast_is_d_null_value(&c)) {
Rast_set_d_null_value(&outbuf[col], 1);
}
else {
outbuf[col] = c;
}
}
Rast_put_d_row(outfile, outbuf);
}
break;
case 2: /* bilinear */
for (row = 0; row < dst_w.rows; row++) {
double north = Rast_row_to_northing(row + 0.5, &dst_w);
double maprow_f = Rast_northing_to_row(north, &src_w) - 0.5;
int maprow0 = (int)floor(maprow_f);
double v = maprow_f - maprow0;
G_percent(row, dst_w.rows, 2);
read_rows(infile, maprow0);
for (col = 0; col < dst_w.cols; col++) {
double east = Rast_col_to_easting(col + 0.5, &dst_w);
double mapcol_f = Rast_easting_to_col(east, &src_w) - 0.5;
int mapcol0 = (int)floor(mapcol_f);
int mapcol1 = mapcol0 + 1;
double u = mapcol_f - mapcol0;
double c00 = bufs[0][mapcol0];
double c01 = bufs[0][mapcol1];
double c10 = bufs[1][mapcol0];
double c11 = bufs[1][mapcol1];
if (Rast_is_d_null_value(&c00) ||
Rast_is_d_null_value(&c01) ||
Rast_is_d_null_value(&c10) || Rast_is_d_null_value(&c11)) {
Rast_set_d_null_value(&outbuf[col], 1);
}
else {
outbuf[col] = Rast_interp_bilinear(u, v, c00, c01, c10, c11);
}
}
Rast_put_d_row(outfile, outbuf);
}
break;
case 4: /* bicubic */
for (row = 0; row < dst_w.rows; row++) {
double north = Rast_row_to_northing(row + 0.5, &dst_w);
double maprow_f = Rast_northing_to_row(north, &src_w) - 0.5;
int maprow1 = (int)floor(maprow_f);
int maprow0 = maprow1 - 1;
double v = maprow_f - maprow1;
G_percent(row, dst_w.rows, 2);
read_rows(infile, maprow0);
for (col = 0; col < dst_w.cols; col++) {
double east = Rast_col_to_easting(col + 0.5, &dst_w);
double mapcol_f = Rast_easting_to_col(east, &src_w) - 0.5;
int mapcol1 = (int)floor(mapcol_f);
int mapcol0 = mapcol1 - 1;
int mapcol2 = mapcol1 + 1;
int mapcol3 = mapcol1 + 2;
double u = mapcol_f - mapcol1;
double c00 = bufs[0][mapcol0];
double c01 = bufs[0][mapcol1];
double c02 = bufs[0][mapcol2];
double c03 = bufs[0][mapcol3];
double c10 = bufs[1][mapcol0];
double c11 = bufs[1][mapcol1];
double c12 = bufs[1][mapcol2];
double c13 = bufs[1][mapcol3];
double c20 = bufs[2][mapcol0];
double c21 = bufs[2][mapcol1];
double c22 = bufs[2][mapcol2];
double c23 = bufs[2][mapcol3];
double c30 = bufs[3][mapcol0];
double c31 = bufs[3][mapcol1];
double c32 = bufs[3][mapcol2];
double c33 = bufs[3][mapcol3];
if (Rast_is_d_null_value(&c00) ||
Rast_is_d_null_value(&c01) ||
Rast_is_d_null_value(&c02) ||
Rast_is_d_null_value(&c03) ||
Rast_is_d_null_value(&c10) ||
Rast_is_d_null_value(&c11) ||
Rast_is_d_null_value(&c12) ||
Rast_is_d_null_value(&c13) ||
Rast_is_d_null_value(&c20) ||
Rast_is_d_null_value(&c21) ||
Rast_is_d_null_value(&c22) ||
Rast_is_d_null_value(&c23) ||
Rast_is_d_null_value(&c30) ||
Rast_is_d_null_value(&c31) ||
Rast_is_d_null_value(&c32) || Rast_is_d_null_value(&c33)) {
Rast_set_d_null_value(&outbuf[col], 1);
}
else {
outbuf[col] = Rast_interp_bicubic(u, v,
c00, c01, c02, c03,
c10, c11, c12, c13,
c20, c21, c22, c23,
c30, c31, c32, c33);
}
}
Rast_put_d_row(outfile, outbuf);
}
break;
case 5: /* lanczos */
for (row = 0; row < dst_w.rows; row++) {
double north = Rast_row_to_northing(row + 0.5, &dst_w);
double maprow_f = Rast_northing_to_row(north, &src_w) - 0.5;
int maprow1 = (int)floor(maprow_f + 0.5);
int maprow0 = maprow1 - 2;
double v = maprow_f - maprow1;
G_percent(row, dst_w.rows, 2);
read_rows(infile, maprow0);
for (col = 0; col < dst_w.cols; col++) {
double east = Rast_col_to_easting(col + 0.5, &dst_w);
double mapcol_f = Rast_easting_to_col(east, &src_w) - 0.5;
int mapcol2 = (int)floor(mapcol_f + 0.5);
int mapcol0 = mapcol2 - 2;
int mapcol4 = mapcol2 + 2;
double u = mapcol_f - mapcol2;
double c[25];
int ci = 0, i, j, do_lanczos = 1;
for (i = 0; i < 5; i++) {
for (j = mapcol0; j <= mapcol4; j++) {
c[ci] = bufs[i][j];
if (Rast_is_d_null_value(&(c[ci]))) {
Rast_set_d_null_value(&outbuf[col], 1);
do_lanczos = 0;
break;
}
ci++;
}
if (!do_lanczos)
break;
}
if (do_lanczos) {
outbuf[col] = Rast_interp_lanczos(u, v, c);
}
}
Rast_put_d_row(outfile, outbuf);
}
break;
}
G_percent(dst_w.rows, dst_w.rows, 2);
Rast_close(infile);
Rast_close(outfile);
/* record map metadata/history info */
sprintf(title, "Resample by %s interpolation", method->answer);
Rast_put_cell_title(rastout->answer, title);
Rast_short_history(rastout->answer, "raster", &history);
Rast_set_history(&history, HIST_DATSRC_1, rastin->answer);
G_format_resolution(src_w.ns_res, buf_nsres, src_w.proj);
G_format_resolution(src_w.ew_res, buf_ewres, src_w.proj);
Rast_format_history(&history, HIST_DATSRC_2,
"Source map NS res: %s EW res: %s",
buf_nsres, buf_ewres);
Rast_command_history(&history);
Rast_write_history(rastout->answer, &history);
/* copy color table from source map */
if (Rast_read_colors(rastin->answer, "", &colors) < 0)
G_fatal_error(_("Unable to read color table for %s"), rastin->answer);
Rast_mark_colors_as_fp(&colors);
Rast_write_colors(rastout->answer, G_mapset(), &colors);
return (EXIT_SUCCESS);
}
int E_edit_cellhd(struct Cell_head *cellhd, int type)
{
char ll_north[20];
char ll_south[20];
char ll_east[20];
char ll_west[20];
char ll_nsres[20];
char ll_ewres[20];
char ll_def_north[20];
char ll_def_south[20];
char ll_def_east[20];
char ll_def_west[20];
char ll_def_ewres[20];
char ll_def_nsres[20];
char projection[80];
char **screen;
struct Cell_head def_wind;
double north, south, east, west;
double nsres, ewres;
char buf[64], buf2[30], *p;
short ok;
int line;
char *prj;
char *err;
if (type == AS_CELLHD && (cellhd->rows <= 0 || cellhd->cols <= 0)) {
G_message("E_edit_cellhd() - programmer error");
G_message(" ** rows and cols must be positive **");
return -1;
}
if (type != AS_DEF_WINDOW) {
if (G_get_default_window(&def_wind) != 1)
return -1;
if (cellhd->proj < 0) {
cellhd->proj = def_wind.proj;
cellhd->zone = def_wind.zone;
}
else if (cellhd->zone < 0)
cellhd->zone = def_wind.zone;
}
prj = G__projection_name(cellhd->proj);
if (!prj)
prj = "** unknown **";
sprintf(projection, "%d (%s)", cellhd->proj, prj);
if (type != AS_DEF_WINDOW) {
if (cellhd->west >= cellhd->east || cellhd->south >= cellhd->north) {
cellhd->north = def_wind.north;
cellhd->south = def_wind.south;
cellhd->west = def_wind.west;
cellhd->east = def_wind.east;
if (type != AS_CELLHD) {
cellhd->ew_res = def_wind.ew_res;
cellhd->ns_res = def_wind.ns_res;
cellhd->rows = def_wind.rows;
cellhd->cols = def_wind.cols;
}
}
if (cellhd->proj != def_wind.proj) {
if (type == AS_CELLHD)
G_message
("header projection %d differs from default projection %d",
cellhd->proj, def_wind.proj);
else
G_message
("region projection %d differs from default projection %d",
cellhd->proj, def_wind.proj);
if (!G_yes("do you want to make them match? ", 1))
return -1;
cellhd->proj = def_wind.proj;
cellhd->zone = def_wind.zone;
}
if (cellhd->zone != def_wind.zone) {
if (type == AS_CELLHD)
G_message("header zone %d differs from default zone %d",
cellhd->zone, def_wind.zone);
else
G_message("region zone %d differs from default zone %d",
cellhd->zone, def_wind.zone);
if (!G_yes("do you want to make them match? ", 1))
return -1;
cellhd->zone = def_wind.zone;
}
*ll_def_north = 0;
*ll_def_south = 0;
*ll_def_east = 0;
*ll_def_west = 0;
*ll_def_ewres = 0;
*ll_def_nsres = 0;
format_northing(def_wind.north, ll_def_north, def_wind.proj);
format_northing(def_wind.south, ll_def_south, def_wind.proj);
format_easting(def_wind.east, ll_def_east, def_wind.proj);
format_easting(def_wind.west, ll_def_west, def_wind.proj);
format_resolution(def_wind.ew_res, ll_def_ewres, def_wind.proj);
format_resolution(def_wind.ns_res, ll_def_nsres, def_wind.proj);
}
*ll_north = 0;
*ll_south = 0;
*ll_east = 0;
*ll_west = 0;
*ll_ewres = 0;
*ll_nsres = 0;
format_northing(cellhd->north, ll_north, cellhd->proj);
format_northing(cellhd->south, ll_south, cellhd->proj);
format_easting(cellhd->east, ll_east, cellhd->proj);
format_easting(cellhd->west, ll_west, cellhd->proj);
format_resolution(cellhd->ew_res, ll_ewres, cellhd->proj);
format_resolution(cellhd->ns_res, ll_nsres, cellhd->proj);
while (1) {
ok = 1;
/* List window options on the screen for the user to answer */
switch (type) {
case AS_CELLHD:
screen = cellhd_screen;
break;
case AS_DEF_WINDOW:
screen = def_window_screen;
break;
default:
screen = window_screen;
break;
}
V_clear();
line = 0;
while (*screen)
V_line(line++, *screen++);
/* V_ques ( variable, type, row, col, length) ; */
V_ques(ll_north, 's', 6, 36, 10);
V_ques(ll_south, 's', 10, 36, 10);
V_ques(ll_west, 's', 9, 12, 10);
V_ques(ll_east, 's', 9, 52, 10);
if (type != AS_CELLHD) {
V_ques(ll_ewres, 's', 18, 48, 10);
V_ques(ll_nsres, 's', 19, 48, 10);
}
if (type != AS_DEF_WINDOW) {
V_const(ll_def_north, 's', 3, 36, 10);
V_const(ll_def_south, 's', 13, 36, 10);
V_const(ll_def_west, 's', 9, 1, 10);
V_const(ll_def_east, 's', 9, 65, 10);
if (type != AS_CELLHD) {
V_const(ll_def_ewres, 's', 18, 21, 10);
V_const(ll_def_nsres, 's', 19, 21, 10);
}
}
V_const(projection, 's', 15, 23, (int)strlen(projection));
V_const(&cellhd->zone, 'i', 15, 60, 3);
V_intrpt_ok();
if (!V_call())
return -1;
G_squeeze(ll_north);
G_squeeze(ll_south);
G_squeeze(ll_east);
G_squeeze(ll_west);
if (type != AS_CELLHD) {
G_squeeze(ll_ewres);
G_squeeze(ll_nsres);
}
if (!G_scan_northing(ll_north, &cellhd->north, cellhd->proj)) {
G_warning("Illegal value for north: %s", ll_north);
ok = 0;
}
if (!G_scan_northing(ll_south, &cellhd->south, cellhd->proj)) {
G_warning("Illegal value for south: %s", ll_south);
ok = 0;
}
if (!G_scan_easting(ll_east, &cellhd->east, cellhd->proj)) {
G_warning("Illegal value for east: %s", ll_east);
ok = 0;
}
if (!G_scan_easting(ll_west, &cellhd->west, cellhd->proj)) {
G_warning("Illegal value for west: %s", ll_west);
ok = 0;
}
if (type != AS_CELLHD) {
if (!G_scan_resolution(ll_ewres, &cellhd->ew_res, cellhd->proj)) {
G_warning("Illegal east-west resolution: %s", ll_ewres);
ok = 0;
}
if (!G_scan_resolution(ll_nsres, &cellhd->ns_res, cellhd->proj)) {
G_warning("Illegal north-south resolution: %s", ll_nsres);
ok = 0;
}
}
if (!ok) {
hitreturn();
continue;
}
/* Adjust and complete the cell header */
north = cellhd->north;
south = cellhd->south;
east = cellhd->east;
west = cellhd->west;
nsres = cellhd->ns_res;
ewres = cellhd->ew_res;
if ((err =
G_adjust_Cell_head(cellhd, type == AS_CELLHD,
type == AS_CELLHD))) {
G_message("%s", err);
hitreturn();
continue;
}
if (type == AS_CELLHD) {
nsres = cellhd->ns_res;
ewres = cellhd->ew_res;
}
SHOW:
fprintf(stderr, "\n\n");
G_message(" projection: %s", projection);
G_message(" zone: %d", cellhd->zone);
G_format_northing(cellhd->north, buf, cellhd->proj);
G_format_northing(north, buf2, cellhd->proj);
fprintf(stderr, " north: %s", buf);
if (strcmp(buf, buf2) != 0) {
ok = 0;
fprintf(stderr, " (Changed to match resolution)");
}
fprintf(stderr, "\n");
G_format_northing(cellhd->south, buf, cellhd->proj);
G_format_northing(south, buf2, cellhd->proj);
fprintf(stderr, " south: %s", buf);
if (strcmp(buf, buf2) != 0) {
ok = 0;
fprintf(stderr, " (Changed to match resolution)");
}
fprintf(stderr, "\n");
G_format_easting(cellhd->east, buf, cellhd->proj);
G_format_easting(east, buf2, cellhd->proj);
fprintf(stderr, " east: %s", buf);
if (strcmp(buf, buf2) != 0) {
ok = 0;
fprintf(stderr, " (Changed to match resolution)");
}
fprintf(stderr, "\n");
G_format_easting(cellhd->west, buf, cellhd->proj);
G_format_easting(west, buf2, cellhd->proj);
fprintf(stderr, " west: %s", buf);
if (strcmp(buf, buf2) != 0) {
ok = 0;
fprintf(stderr, " (Changed to match resolution)");
}
fprintf(stderr, "\n\n");
G_format_resolution(cellhd->ew_res, buf, cellhd->proj);
G_format_resolution(ewres, buf2, cellhd->proj);
fprintf(stderr, " e-w res: %s", buf);
if (strcmp(buf, buf2) != 0) {
ok = 0;
fprintf(stderr, " (Changed to conform to grid)");
}
fprintf(stderr, "\n");
G_format_resolution(cellhd->ns_res, buf, cellhd->proj);
G_format_resolution(nsres, buf2, cellhd->proj);
fprintf(stderr, " n-s res: %s", buf);
if (strcmp(buf, buf2) != 0) {
ok = 0;
fprintf(stderr, " (Changed to conform to grid)");
}
fprintf(stderr, "\n\n");
G_message(" total rows: %15d", cellhd->rows);
G_message(" total cols: %15d", cellhd->cols);
sprintf(buf, "%lf", (double)cellhd->rows * cellhd->cols);
*(p = strchr(buf, '.')) = 0;
G_insert_commas(buf);
G_message(" total cells: %15s", buf);
fprintf(stderr, "\n");
if (type != AS_DEF_WINDOW) {
if (cellhd->north > def_wind.north) {
G_warning("north falls outside the default region");
ok = 0;
}
if (cellhd->south < def_wind.south) {
G_warning("south falls outside the default region");
ok = 0;
}
if (cellhd->proj != PROJECTION_LL) {
if (cellhd->east > def_wind.east) {
G_warning("east falls outside the default region");
ok = 0;
}
if (cellhd->west < def_wind.west) {
G_warning("west falls outside the default region");
ok = 0;
}
}
}
ASK:
fflush(stdin);
if (type == AS_CELLHD)
fprintf(stderr, "\nDo you accept this header? (y/n) [%s] > ",
ok ? "y" : "n");
else
fprintf(stderr, "\nDo you accept this region? (y/n) [%s] > ",
ok ? "y" : "n");
if (!G_gets(buf))
goto SHOW;
G_strip(buf);
switch (*buf) {
case 0:
break;
case 'y':
case 'Y':
ok = 1;
break;
case 'n':
case 'N':
ok = 0;
break;
default:
goto ASK;
}
if (ok)
return 0;
}
}
