bp_split_union_polygon - ObjectVision/GeoDMS GitHub Wiki
Geometric functions bp_split_union_polygon
- bp_split_union_polygon(polygon_data_item) (formerly known as split_union_polygon)
- bp_split_union_polygon(polygon_data_item, relation) (formerly known as split_partitioned_union_polygon)
bp_split_union_polygon(polygon_data_item, relation) results in a new uint32 domain unit with single polygons for each (multi)polygon in the polygon_data_item argument, and also dissolves over the relation.
- The composition type of the polygon_data_item argument needs to be polygon with an ipoint or spoint value type.
- The domain unit of the polygon_data_item argument must be of value type uint32.
- bp_split_union_polygon(D->*P)-> S { geometry: S->*P }
- bp_split_union_polygon(D->*P, part_rel:D->R)-> S { geometry: S->*P, part_rel->S->R }
where P is a GeoDms point type with signed integer coordinates, i.e. 16, 32, or 64-bit signed integers. S is the resulting uint32 set of split polygons, D is the domain of the argument, and R is the values unit of the partitioning part_rel.
15.6.0
unit<uint32> split_dissolve := bp_split_union_polygon(multipolygon/geometry);
unit<uint32> split_dissolve := bp_split_union_polygon(multipolygon/geometry, multipolygon/regio_rel));