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Determining Polyline Angles

03-01-2018 08:24 AM
New Contributor

Hello all,

I look forward to your help in solving my problem. I am working with a Pennsylvania streams layer from DEP. I am trying to develop a script that analyzes poly-lines to determine if a river is curving. When the line reaches a certain angle, I would like to place a point. I am essentially trying to determine sinuosity of streams and pinpoint where the meander of the stream is most defined.

Any assistance you could provide would be greatly appreciated. I look forward to your reply. Please let me know if any more information is needed.

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3 Replies
MVP Alum

Here's a starting resource that may provide ideas.  Though a bit dated, you could modernize it to ArcGIS 10.  I'm not sure on the specifics, however.  There is a Python toolbox listed on the bottom of the post that may help.


Chris Donohue, GISP

MVP Esteemed Contributor