Merging rasters to generate a color relief map
Generating a color relief raster is a one-liner with the gdaldem color-relief command line. If you want something that's a little more visually appealing, we will perform a combination of a slope, hillshade, and some color relief. Our end result is a single new raster representing a merge of layers to give a nice visual effect of elevation relief. The results are going to look similar to the following image:
Getting ready
For this exercise, you need to have the GDAL libraries installed that include the gdaldem command-line tool.
How to do it...
- Let's begin by extracting some key information out of our DEM ...
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