GIS map overlay intersection operation on map layers
In map overlay, is intersection of map layers a commutative operation ie layer_开发者_如何转开发A intersection layer_B = layer_B intersection layer_A?
It depends on if the layers are the same geometry type. If one layer is point, and the other line, for example, the intersection could be point or lines, and therefore it may not be commutative. If they are the same geometry type, then yes, operation of intersection is commutative.
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