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Ordering polygons created by splitting one polygon into multiple polygons.


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I need to ensure that the polygons created are in ascending order from the first polygon which is known or can be found. I think there is a transformer in 2018 that can do this but I am using 2016. I have tried using NeighbourFinder and sort by ascending distance which is OK as long as the polygons do not turn back towards the first one.

2 replies

jdh
Contributor
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  • Contributor
  • October 22, 2018
Could you describe in a bit more detail, how you are splitting the polygons, and what you mean by "do not turn back towards the first one".

 

 


gio
Contributor
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  • Contributor
  • October 22, 2018

not sure as well.

..still I'll try

Use a NNF to project the centre points of the polygons to the border of the Hull of the polygons (create vertex on candidate or use close candidate x and y).

Get the points (chopper) PointonLine overlayer.

Then output of PoLo to a topologybuilder, points will then be ordered.

Or maybe the little ordening expression is of use to you. It is posted somewhere in this vast forum.


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