Assertions for well-known binary representation for geometry
The well-known binary representation for geometry is designed to represent instances of the geometry types described in the geometry object model and in the OpenGIS Abstract Specification.
These
assertions imply the following:
- Linear rings
- Rings are simple and closed, which means that linear rings may not self intersect.
- Polygons
- No two linear rings in the boundary of a polygon may cross each other. The linear rings in the boundary of a polygon may intersect, at most, at a single point but only as a tangent.
- Multipolygons
- The interiors of two polygons that are elements of a multipolygon may not intersect. The boundaries of any two polygons that are elements of a multipolygon may touch at only a finite number of points.