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I am using Saga-GIS to calculate a viewshed from a single point. I can do this with the interactive module, (terrain analysis > Lighting > visibility (single point) interactive) but how do I do it from a shapefile?

thanks for any tips,

Robert

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Also...any infos regarding the settings for the viewshed (Shade, distance, height) would be most welcome) –  Robert Buckley May 14 '12 at 10:44
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2 Answers 2

Unfortunatelly you can't do this in SAGA. I recommend you GRASS. You have a module named r.cva.

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SAGA 2.1.0 can perform viewshed analysis for multiple points. You can vectorize it by following method. Modules > Shapes >Grid >Vectorization..

Thnks

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