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Is it possible to draw contour line for 4 different .hgt raster in one operation ? If I load them to cover a large region, do I need to extract-> contour for each of them or is there a tool opposite to "crop" which could group the four rasters for contour line extraction ? Thanks a lot

marked as duplicate by underdark Nov 9 '14 at 15:16

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    I just have to do Raster-> Divers -> Fusion ! – catindri Nov 8 '14 at 20:09

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