What is the difference between Spatial predicates "Covers" and "Contains"?
I try to understand the Spatial predicates of the DE-9IM Intersection matrix. I don't get the difference between predicates Covers (respective CoveredBy) and Contains (resp. Within).
I try to draw geometries with JTS Topology Suite, they are always Covers = True and Contains = True (or both are False) but I don't manage to make them different, i.e. to see the difference between Covers and Contains. Does anybody have an example (preferably an WKT or a picture) which illustrate the difference?
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I try to understand the Spatial predicates of the DE-9IM Intersection matrix. I don't get the difference between predicates Covers (respective CoveredBy) and Contains (resp. Within).
I try to draw geometries with JTS Topology Suite, they are always Covers = True and Contains = True (or both are False) but I don't manage to make them different, i.e. to see the difference between Covers and Contains. Does anybody have an example (preferably an WKT or a picture) which illustrate the difference?
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