Hi,
What must be done to delete vector lines from a vector map?
I'm currently trying to do:
for(cat=cl->min[i]; cat <= cl->max[i]; cat++) {
ret = Vect_cidx_find_next(Map, layer, cat, GV_POINTS|GV_LINES,
0, &type, &id);
if(ret<0) continue;
if(type==GV_CENTROID) {
int area;
double x,y;
Vect_get_node_coor(Map, id, &x, &y, NULL);
area = Vect_find_area(Map, x, y);
Vect_delete_line(Map, id);
Vect_delete_line(Map, area);
attr_del(Map, layer, cat);
}
else {
Vect_delete_line(Map, id);
attr_del(Map, layer, cat);
but when it calls Vect_cidx_find_next the second time I get a fatal error saying:
ERROR: Category index is not up to date
and then it exits. So I guess I'm asking how do I update the category index? Should I call Vect_cidx_save()? If I do, do I then need to Vect_cidx_open()?
--Wolf
--
<:3 )---- Wolf Bergenheim ----( 8:>