Web API Reference MapGuide Open Source

mod 2 union rule
[Glossary]

[OGC96-015R1] states the following:

"For complex geometries, we take the 'mod 2' union of the components. That means that a point is in the boundary of a complex object (represented as disjoint representational geometries) if it is in an odd number of the boundaries of its component simple geometries."


Comments or suggestions? Send us feedback.