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/****************************************************************
*
* MODULE: d.extract
*
* AUTHOR(S): Radim Blazek, Markus Neteler
*
* PURPOSE: A graphical vector extractor
*
* COPYRIGHT: (C) 2002 by the GRASS Development Team
*
* This program is free software under the
* GNU General Public License (>=v2).
* Read the file COPYING that comes with GRASS
* for details.
*
****************************************************************/
#include <stdlib.h>
#include <string.h>
#include <grass/gis.h>
#include <grass/display.h>
#include <grass/colors.h>
#include <grass/vector.h>
#include <grass/dbmi.h>
#include <grass/glocale.h>
int extract(struct Map_info *, struct Map_info *, int, const struct color_rgb *,
const struct color_rgb *);
int main(int argc, char **argv)
{
struct Option *input, *output, *type_opt;
struct Option *color_opt, *hcolor_opt;
struct GModule *module;
char *mapset;
struct Map_info In, Out;
int type;
struct color_rgb color, hcolor;
int r, g, b;
struct field_info *Fi, *Fin;
int i, n, tbtype, ret;
/* Initialize the GIS calls */
G_gisinit(argv[0]);
module = G_define_module();
G_add_keyword(_("display"));
G_add_keyword(_("vector"));
module->description =
_("Selects and extracts vectors with mouse into new vector map.");
input = G_define_standard_option(G_OPT_V_INPUT);
output = G_define_standard_option(G_OPT_V_OUTPUT);
type_opt = G_define_standard_option(G_OPT_V_TYPE);
type_opt->options = "point,line,boundary,centroid,area,face";
type_opt->answer = "point,line,boundary,centroid,area,face";
color_opt = G_define_option();
color_opt->key = "color";
color_opt->type = TYPE_STRING;
color_opt->answer = "black";
color_opt->description = _("Original line color");
hcolor_opt = G_define_option();
hcolor_opt->key = "hcolor";
hcolor_opt->type = TYPE_STRING;
hcolor_opt->answer = "red";
hcolor_opt->description = _("Highlight color");
if (G_parser(argc, argv))
exit(EXIT_FAILURE);
type = Vect_option_to_types(type_opt);
if (R_open_driver() != 0)
G_fatal_error(_("No graphics device selected"));
color = G_standard_color_rgb(BLACK);
if (G_str_to_color(color_opt->answer, &r, &g, &b)) {
color.r = r;
color.g = g;
color.b = b;
}
hcolor = G_standard_color_rgb(RED);
if (G_str_to_color(hcolor_opt->answer, &r, &g, &b)) {
hcolor.r = r;
hcolor.g = g;
hcolor.b = b;
}
mapset = G_find_vector2(input->answer, NULL);
if (mapset == NULL)
G_fatal_error(_("Vector map <%s> not found"), input->answer);
Vect_set_open_level(2);
if (Vect_open_old(&In, input->answer, mapset) < 0)
G_fatal_error(_("Unable to open vector map <%s>"), input->answer);
if (Vect_open_new(&Out, output->answer, Vect_is_3d(&In)) < 0)
G_fatal_error(_("Unable to create vector map <%s>"), output->answer);
Vect_copy_head_data(&In, &Out);
Vect_hist_copy(&In, &Out);
Vect_hist_command(&Out);
D_setup(0);
G_setup_plot(D_get_d_north(), D_get_d_south(), D_get_d_west(),
D_get_d_east(), D_move_abs, D_cont_abs);
extract(&In, &Out, type, &color, &hcolor);
R_close_driver();
/* Copy tables */
G_message(_("Copying tables..."));
n = Vect_get_num_dblinks(&In);
tbtype = GV_1TABLE;
if (n > 1)
tbtype = GV_MTABLE;
for (i = 0; i < n; i++) {
Fi = Vect_get_dblink(&In, i);
if (Fi == NULL) {
G_warning(_("Cannot get db link info -> cannot copy table."));
continue;
}
Fin = Vect_default_field_info(&Out, Fi->number, Fi->name, tbtype);
G_debug(3, "Copy drv:db:table '%s:%s:%s' to '%s:%s:%s'", Fi->driver,
Fi->database, Fi->table, Fin->driver, Fin->database,
Fin->table);
Vect_map_add_dblink(&Out, Fi->number, Fi->name, Fin->table, Fi->key,
Fin->database, Fin->driver);
ret = db_copy_table(Fi->driver, Fi->database, Fi->table, Fin->driver,
Vect_subst_var(Fin->database, &Out), Fin->table);
if (ret == DB_FAILED) {
G_warning("Unable to copy table");
continue;
}
} /* for of copy table */
Vect_build(&Out, stdout);
Vect_close(&In);
Vect_close(&Out);
exit(EXIT_SUCCESS);
}
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