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I have a stream segment which is polyline feature. Now I want to draw a line which is perpendicular to stream segment at a interval of 30m. How can i do it using python ? Do you have idea on this .

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marked as duplicate by whuber May 17 '13 at 14:48

This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.

If you are using GIS software can you let us know which product(s) so that we can phrase a suitable answer, please? Most GIS software will have their dynamic segmentation (sometimes known as linear referencing or chainage) capabilities documented. – PolyGeo May 17 '13 at 10:18
I am using ArcMap10 – Ja Geo May 17 '13 at 10:49
The code in the accepted answer to this question may be of interest. – JamesS May 17 '13 at 13:38
Possibly a useful – Aaron May 17 '13 at 14:26
Isn't it possible without using other module. I need to use it in Arc Map 10. – Ja Geo May 17 '13 at 14:28

If you have not done so yet read up on route hatching. Then you should be able to author a layer file with appropriate route hatching that you can use to add/update a layer using ArcPy.

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+1 For dusting off one of the more obscure tricks in the hat – Aaron May 17 '13 at 13:27

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