/*!
\brief Rewrites feature at the given offset (level 1)
\param Map pointer to Map_info structure
\param offset feature offset
\param type feature type
\param points feature geometry
\param cats feature categories
\return feature offset (rewriten feature)
\return -1 on error
*/
off_t V1_rewrite_line_ogr(struct Map_info *Map,
int line,
int type,
off_t offset,
const struct line_pnts *points, const struct line_cats *cats)
{
if (type != V1_read_line_ogr(Map, NULL, NULL, offset)) {
G_warning(_("Unable to rewrite feature (incompatible feature types)"));
return -1;
}
/* delete old */
V1_delete_line_ogr(Map, offset);
return V1_write_line_ogr(Map, type, points, cats);
}
/*!
\brief Rewrites feature at the given offset on level 1 (OGR interface)
This function simply calls V1_delete_line_ogr() and V1_write_line_ogr().
\param Map pointer to Map_info structure
\param offset feature offset
\param type feature type (see V1_write_line_ogr() for supported types)
\param points pointer to line_pnts structure (feature geometry)
\param cats pointer to line_cats structure (feature categories)
\return feature offset (rewriten feature)
\return -1 on error
*/
off_t V1_rewrite_line_ogr(struct Map_info *Map,
int line, int type, off_t offset,
const struct line_pnts *points, const struct line_cats *cats)
{
G_debug(3, "V1_rewrite_line_ogr(): line=%d type=%d offset=%"PRI_OFF_T,
line, type, offset);
#ifdef HAVE_OGR
if (type != V1_read_line_ogr(Map, NULL, NULL, offset)) {
G_warning(_("Unable to rewrite feature (incompatible feature types)"));
return -1;
}
/* delete old */
V1_delete_line_ogr(Map, offset);
return V1_write_line_ogr(Map, type, points, cats);
#else
G_fatal_error(_("GRASS is not compiled with OGR support"));
return -1;
#endif
}
/*!
\brief Deletes feature (topology level) -- internal use only
\param pointer to Map_info structure
\param line feature id
\return 0 on success
\return -1 on error
*/
int V2_delete_line_ogr(struct Map_info *Map, off_t line)
{
int ret, i, type, first;
struct P_line *Line;
struct Plus_head *plus;
static struct line_cats *Cats = NULL;
static struct line_pnts *Points = NULL;
G_debug(3, "V2_delete_line_ogr(), line = %d", (int) line);
type = first = 0;
Line = NULL;
plus = &(Map->plus);
if (plus->built >= GV_BUILD_BASE) {
Line = Map->plus.Line[line];
if (Line == NULL)
G_fatal_error(_("Attempt to delete dead feature"));
type = Line->type;
}
if (!Cats) {
Cats = Vect_new_cats_struct();
}
if (!Points) {
Points = Vect_new_line_struct();
}
type = V2_read_line_ogr(Map, Points, Cats, line);
/* Update category index */
if (plus->update_cidx) {
for (i = 0; i < Cats->n_cats; i++) {
dig_cidx_del_cat(plus, Cats->field[i], Cats->cat[i], line, type);
}
}
/* Update fidx */
/* delete the line from coor */
ret = V1_delete_line_ogr(Map, Line->offset);
if (ret == -1) {
return ret;
}
/* Update topology */
if (plus->built >= GV_BUILD_AREAS && type == GV_BOUNDARY) {
/* TODO */
/* remove centroid together with boundary (is really an OGR polygon) */
}
/* Delete reference from area */
if (plus->built >= GV_BUILD_CENTROIDS && type == GV_CENTROID) {
/* for OGR mapsets, virtual centroid will be removed when polygon is removed */
}
/* delete the line from topo */
dig_del_line(plus, line, Points->x[0], Points->y[0], Points->z[0]);
/* Rebuild areas/isles and attach centroids and isles */
if (plus->built >= GV_BUILD_AREAS && type == GV_BOUNDARY) {
/* maybe not needed VERIFY */
}
return ret;
}
