center_bound - ObjectVision/GeoDMS GitHub Wiki

Geometric functions center_bound

• center_bound(polygon_data_item)

center_bound(polygon_data_item) results in a point data item with the center of the bounding box of the polygon_data_item.

data item polygon_data_item with fpoint or dpoint value type and composition type polygon

attribute<point_rd> cb (district) := center_bound(district/geometry);

domain district, nr of rows = 3

• lower_bound
• upper_bound