+1Hi, I have a large number of space delimited XYZ files (*.xyz) and I would like to find a way to determine the extent of the files.
I don't want the minimum bounding rectangle, but the actual boundary as it would be if I were to join all the outer points of the file together.
I thought about buffering every point in the file, then dissolving the resultant buffers, but that is very time consuming so I would like to find an alternative method if possible.
Thanks,
+1Have you looked at the HullAccumulator and/or HullReplacer?
+1I now using the HullAccumulator in Concave mode.
I can't use the Convex mode because this mode does not define the geometry of the boundary correctly (it is joining points up that are nowhere near each other).
I have tried a value of 4 for the Alpha parameter in Concave mode, but the workflow is now taking too long to run. I really have no idea what sort of value I should be putting in for the Alpha parameter.... If it helps at all the points I am trying to create an extent of are at a 0.2m resolution.
Any suggestions on reasonable Alpha values to try?
Thanks,
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