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Spatial relationship where two features share a common border under some interpretation - ie, are 'next to' each other.

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Adjacency matrix for polygons using Java

I am trying to create an adjacency matrix from a set of polygons. That is, I have a bunch of polygons and I want to identify which polygons have a common edge or "touch" each other. … I read some posts on doing this using VBA but I am wondering if Java Eclipse can be used for this purpose because I need to implement the adjacency matrix in a bigger program that I am writing on Java. …
Ahmad Ghazi Altarabsheh's user avatar