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I have a polyline that represents a cyclone track and I want to create equidistant polyline that are perpendicular to the cyclone track. Many thanks for your help.

Elie

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Don't you want the "equidistant polyline" to be parallel? Anything "perpendicular" to the track surely won't be equidistant from the track! –  whuber Mar 6 '12 at 4:27
    
Yea, as whuber said, you can draw equidistant polylines paralel to the track/stream/line. You can try and implement HEC-RAS's "Construct XS Cut Lines Tool" for your application/problem/track. –  A.D.Prasad Mar 6 '12 at 8:28
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1 Answer 1

If you have an ArcInfo license, you can use the line_side parameter of the Buffer (Analysis) tool. This will give you a parallel curve on the LEFT, or RIGHT side of your cyclone track that is offset by your buffer distance.

If you don't have ArcInfo, there are plenty of open source options to choose from that also do this:

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