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/* ***************************************************************
* *
* * MODULE: v.type
* *
* * AUTHOR(S): Radim Blazek
* *
* * PURPOSE: Category manipulations
* *
* * COPYRIGHT: (C) 2001 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 "gis.h"
#include "Vect.h"
int
main (int argc, char *argv[])
{
struct Map_info In, Out;
static struct line_pnts *Points;
struct line_cats *Cats;
int i, j, type;
char *mapset;
struct GModule *module;
struct Option *in_opt, *out_opt, *type_opt;
int types[100]; /* array of input,output types */
int ntypes; /* number of types (number of pairs * 2) */
module = G_define_module();
module->description = "Change the type of geometry elements.";
in_opt = G_define_standard_option(G_OPT_V_INPUT);
out_opt = 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,face,kernel";
type_opt->answer = "point,line,boundary,centroid";
type_opt->description = "Pairs for input and output type separated by comma:\n"
"<input_type1>,<output_type1>,<input_type2>,<output_type2>,....\n"
"Example1: line,boundary\n"
"Example2: line,boundary,point,centroid";
G_gisinit(argv[0]);
if (G_parser (argc, argv))
exit(-1);
i = 0;
j = 0;
while (type_opt->answers[i]) {
switch ( type_opt->answers[i][0] ) {
case 'p':
types[i] = GV_POINT;
break;
case 'l':
types[i] = GV_LINE;
break;
case 'b':
types[i] = GV_BOUNDARY;
break;
case 'c':
types[i] = GV_CENTROID;
break;
case 'f':
types[i] = GV_FACE;
break;
case 'k':
types[i] = GV_KERNEL;
break;
}
if ( j == 1 ) { /* check type compatibility */
if ( (
(types[i-1] & (GV_POINT | GV_CENTROID | GV_KERNEL)) &&
(types[i] & (GV_LINE | GV_BOUNDARY | GV_FACE))
) || (
(types[i-1] & (GV_LINE | GV_BOUNDARY | GV_FACE)) &&
(types[i] & (GV_POINT | GV_CENTROID | GV_KERNEL))
)
)
{
G_fatal_error ("Incompatible types");
}
j = 0;
} else {
j++;
}
i++;
}
if ( i < 2 )
G_fatal_error ("Not enough types");
if ( j == 1 )
G_fatal_error ("Odd number of types");
ntypes = i;
Vect_check_input_output_name ( in_opt->answer, out_opt->answer, GV_FATAL_EXIT );
Points = Vect_new_line_struct ();
Cats = Vect_new_cats_struct ();
/* open input vector */
if ((mapset = G_find_vector2 (in_opt->answer, "")) == NULL) {
G_fatal_error ( "Could not find input map <%s>\n", in_opt->answer);
}
Vect_set_open_level (1);
Vect_open_old (&In, in_opt->answer, mapset);
Vect_set_fatal_error (GV_FATAL_PRINT);
if (0 > Vect_open_new (&Out, out_opt->answer, Vect_is_3d (&In)) ) {
Vect_close (&In);
exit (1);
}
Vect_copy_head_data (&In, &Out);
Vect_hist_copy (&In, &Out);
Vect_hist_command ( &Out );
while ( (type = Vect_read_next_line (&In, Points, Cats)) > 0) {
for ( i = 0; i < ntypes; i += 2 ) {
if ( type == types[i] ) {
type = types[i+1];
break;
}
}
Vect_write_line ( &Out, type, Points, Cats );
}
Vect_copy_tables ( &In, &Out, 0 );
Vect_build (&Out, stdout);
Vect_close (&Out);
Vect_close (&In);
exit(0) ;
}
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