Point_in_all_polygons - ObjectVision/GeoDMS GitHub Wiki

Geometric functions point_in_all_polygons

• point_in_all_polygons(point_data_item, polygon_data_item)

point_in_all_polygons(point_data_item, polygon_data_item) results in a new uint32 domain unit with two subitems: first_rel and second_rel.

These subitems indicate which point is located in which polygons, as a point can be located in multiple polygons and a polygon can container multiple points, this is an n to n relation.

The first_rel item contains the relation to the point_data_item.

The second_rel item contains the relation to the polygon_data_item.

• a data item point_data_item with Point value type
• a data item polygon_data_item with composition type polygon and Point value type

8.035

unit<uint32> district_relations := point_in_all_polygons(Pointdomain/point, district/geometry);

domain Pointdomain, nr of rows = 3

domain District, nr of rows = 2

• point_in_polygon
• point_in_ranked_polygon