Upper_bound - ObjectVision/GeoDMS GitHub Wiki
Geometric functions upper_bound
- upper_bound(polygon_data_item)
upper_bound(polygon_data_item) results in a point data item with the highest X and Y value of the points in the polygon_data_item.
In the Dutch RD coordinate system, the upper_bound is the top right coordinate.
data item polygon_data_item with fpoint or dpoint value type and composition type polygon
attribute<point_rd> ub (district) := upper_bound(district/geometry);
| district/geometry | ub |
|---|---|
| {21: xy(113810; 403025) ... | xy(113810; 403552) |
| {17: xy(113269; 400990) ... | xy(113291; 401597) |
| {19: xy(115099; 401238) ... | xy(115164; 401642) |
domain district, nr of rows = 3