topic Re: Determining Polyline Angles in Developers Questions

Determining Polyline Angles

MatthewHess1 — Thu, 01 Mar 2018 16:24:15 GMT

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.

Re: Determining Polyline Angles

ChrisDonohue__GISP — Thu, 01 Mar 2018 17:14:08 GMT

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.

Sinuosity

Chris Donohue, GISP

Re: Determining Polyline Angles

JoshuaBixby — Thu, 01 Mar 2018 19:06:58 GMT

Might also be worth checking out: arcgis desktop - calculating sinuosity of each road segment - Geographic Information Systems Stack Exchange

Re: Determining Polyline Angles

DanPatterson_Retired — Thu, 01 Mar 2018 22:04:31 GMT

Recent related post here

https://community.esri.com/message/749612-re-stream-segmentation?commentID=749612#comment-749612