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Hello, I am trying to remove overlapping polygons - I want to do so by computing distance to other polygons using xyzdist(). So I want to specify primgroup which will contain all, but current primitive, so that It is not returning distance to itself. According to documentation, I should pass group string which matches general SOP syntax. So for polygon number 240, primgroup parameter should be "* ^240". When I pass this parameter to the function, it returns -1 in found primitive - no primitive found. I think that the error is causing by this primgroup parameter. If I pass for example "*", then there is also no primitive found. How can I use patterns to define group inside this function? Like 0-50, *, ... This is from the docs: The name of a primitive group or a pattern to generate a primitive group. Uses the same semantics as a SOP group, so empty strings will match all primitives. Any ideas how to make this pattern working? Juraj
