/*! \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 Writes feature on level 2 \param Map pointer to Map_info structure \param type feature type \param points pointer to line_pnts structure (feature geometry) \param cats pointer to line_cats structure (feature categories) \return feature offset into file \return -1 on error */ off_t V2_write_line_ogr(struct Map_info *Map, int type, const struct line_pnts *points, const struct line_cats *cats) { int line; off_t offset; struct Plus_head *plus; struct bound_box box; line = 0; G_debug(3, "V2_write_line_ogr()"); offset = V1_write_line_ogr(Map, type, points, cats); if (offset < 0) return -1; /* Update topology */ plus = &(Map->plus); /* Add line */ if (plus->built >= GV_BUILD_BASE) { dig_line_box(points, &box); line = dig_add_line(plus, type, points, &box, offset); G_debug(3, " line added to topo with id = %d", line); if (line == 1) Vect_box_copy(&(plus->box), &box); else Vect_box_extend(&(plus->box), &box); V2__add_line_to_topo_ogr(Map, line, points, cats); } G_debug(3, "updated lines : %d , updated nodes : %d", plus->n_uplines, plus->n_upnodes); /* returns int line, but is defined as off_t for compatibility with * Write_line_array in write.c */ return line; }
/*! \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 }