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/*!
\file lib/vector/vedit/copy.c
\brief Vedit library - copy primitives
(C) 2007-2008 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.
\author Jachym Cepicky <jachym.cepicky gmail.com>
\author Martin Landa <landa.martin gmail.com>
*/
#include <grass/vedit.h>
/*!
\brief Copy selected primitives
\param Map pointer to Map_info copy to
\param FromMap vector map copy from (if not given use Map)
\param List list of selected primitives (to be copied)
\return number of copied primitives
\return -1 on error
*/
int Vedit_copy_lines(struct Map_info *Map, struct Map_info *FromMap,
struct ilist *List)
{
struct line_cats *Cats;
struct line_pnts *Points;
int i;
int type, line;
int nlines_copied;
nlines_copied = 0;
Cats = Vect_new_cats_struct();
Points = Vect_new_line_struct();
if (!FromMap) {
FromMap = Map;
}
/* for each line, make a copy */
for (i = 0; i < List->n_values; i++) {
line = List->value[i];
if (!Vect_line_alive(FromMap, line))
continue;
type = Vect_read_line(FromMap, Points, Cats, line);
G_debug(3, "Vedit_copy_lines(): type=%d, line=%d", type, line);
/* copy */
if (Vect_write_line(Map, type, Points, Cats) < 0) {
return -1;
}
nlines_copied++;
}
Vect_destroy_line_struct(Points);
Vect_destroy_cats_struct(Cats);
return nlines_copied;
}
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