For a project I'm working on I work with postal code areas. I still have a few unresolved problems which I would like to ask.
If you have a poly_point dataset. Is it possible to filter out points which have the exact coordinates? For example, if there's a tall building with multiple levels. Is it possible to filter multiple points which lay on the exact same spot in a way that you keep one point?
If you have an attribute which contains text attributes in the form of 1234AB (so 4 digits and 2 letters). Is it possible to create a new attribute which only contains the first 4 or 5 digits?
And finally: I use the centrelinereplacer (straightskelleton) to make smaller polygons, but when I combine 2 datasets and then run the centrelinereplacer, it doesn't work anymore. Is this a familiar problem, is there a resolution?
regards,
Bart