Hands-On Geospatial Analysis with R and QGIS

Slope

The steps in calculating the slope of a digital terrain model are given here:

1. Click on Raster in the top menu. Then, click on Analysis and then on Slope:

2. Now select dem_chittagong.tif for Input layer and then click on Run in Background:

3. We'll now have the following raster:

4. Click on Raster in the top menu. Then, click on Analysis and then on Aspect:

5. Select dem_chittagong.tif for Input layer and then click on Run in Background ...