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Question

Split polygon based on nearest neighbour

  • September 15, 2023
  • 1 reply
  • 59 views

ingalla
Contributor
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Hello

I have a polygon, which is a single feature and need to clip it where the road name changes

The data i have is the polygons adjacent to the road, and the road centreline. I have created a centre line through the polygon, chopped that centreline into 1m segments and applied the nearest neighbour roadname to them.

Any ideas how to chop the polygon where the name changes as shown in the redline on the image attached.

Regards

 

1 reply

ctredinnick
Supporter
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  • Supporter
  • September 16, 2023

You can leverage the fact that the Intersector adds an attribute of the angles of lines which intersect. I don't know when this was added, is actually new to me.

See workspace attached. You intersect the lines, then offset the intersection point by the angle off the two lines. imageIf you need to snap this cut line to your polygon, then you can try do that after the Offsetter with an AnchoredSnapper.


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