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  1.  Double click the DSM layer in the Layers Panel to access the Layer Properties, then select the Style properties:


    1. Under Band rendering change the Render type to Singleband pseudocolor, change the Color to BrBG, pseudocolor and click Classify:


    2. Click Apply, then OK:

      The elevation values are displayed on the Layers Panel.

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  1. Search for "profile" in the Plugins menu, and select Profile tool. If the plugin is not installed, install it. 


  2. Select Plugins → Profile Tool → Terrain profile:


  3. Draw a line or a path, then click Add Layer, and the elevation profile for that line/path will be displayed:


Contour Lines

  1. Select Processing → Toolbar:
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  2. In the Processing Toolbox select GDAL/OGR [48 geoalgorithms] → [GDAL] Conversion → Polygonize (raster to vector):
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  3. Click Run:
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  4. The result displays the contour lines (vector) of the DSM model:
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