New answers tagged dem
1
vote
Accepted
Raster DEM projection rendering problem
Your DEM is in a geographic CRS (coordinate are in degree and reference the location on an ellipsoid).
If you dont set a specific projection QGIS use by default an less than adequate projection (Plate ...
- 13.1k
1
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Detect sharp changes in elevation
Use the slope tool in Arc with D8 or Dinf checked, and output set as degree. It will generate a raster which you can then threshold in your raster calculator. These sharp changes are likely above 85° ...
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2
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Accepted
Polygons from a raster within an elevation range
Using standard Qgis Contour that is a front end to gdal_contour utility.
The solution to draw polygons instead lines is to add these parameters in addition to the command line, -amin -amax is the ...
- 376
0
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Polygons from a raster within an elevation range
As a workaround you could use this workflow:
You need to translate your Line-Geometry to a Polygon-Geometry. You could use a buffer with a very small buffersize for this. If you habe more than one ...
- 315
-1
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Adjusting heights of two DTM rasters using ArcMap
If I understand your post, this is the situation:
The summer DTM values are correct.
Some (or all) winter DTM values do not match their corresponding summer values. Therefore, they are in error and ...
- 7,210
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