I've been working Delaunay triangulation on a set of random points inside a group of mostly linear areas (in fact, buffers around rivers).
The problem is that while the triangulation works correctly inside these areas, it also produce a lot of triangles between the areas. Expectedly.
Now, I need to delete all this extra data manually.
Does anyone think it would be possible to define a threshold, a maximum distance, for the Delaunay algorithm?
That way, it would only produce triangles inside each area.
Any idea how I could do that? I'm using QGIS or GRASS.