I have a raster layer for a natural canal that I want to rum a hydraulic model on, so I want to prolongate -extend- the edges about 20 meters while keeping the same profile of the edges.
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What have you tried so far? Have you tried Buffer?– Tom BrennanMay 24 at 2:00
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2I don't understand the title of the question. What DEM do you want to edit?– user30184May 24 at 5:18
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If you see the picture, I have a digital elevation model shaped like the letter S, I want to extend it on both sides 20 meters each, those extentions will have the same profile as the last point in this DEM– mohammed fadulMay 24 at 7:05
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What is a DEM, in your understanding? I can't see a DEM, I see a vector layer. A DEM is a raster layer with elevation information. You can't "extend" a raster layer, as you would need additional data. You can "extend" (add a buffer) to a vector layer. Please edit/revise your question. As it is written now, it doesn't make any sense.– BabelMay 24 at 7:32
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Sorry, so behind this vector layer, there is a raster (.tif) layer has the elevations of my canal. I want to extend this .tif raster layer 20 meters on both sides, while keeping the same profile of the edges– mohammed fadulMay 24 at 7:51
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