QGIS Slope Analysis & Hillshade

Описание к видео QGIS Slope Analysis & Hillshade

In this video we create a DEM from a contour polyline with a height value through TIN interpolation. We then run a slope analysis for the new DEM. Therse slopes can then be reclassified into categories using the r.reclass GRASS plugin. Finally we create a hillshade layer to give the topography a 3d effect.

timestamps
0:10 Open QGIS with GRASS
1:28 TIN interpolation
4:21 Derive slope
5:17 Slope measured in degrees of inclination
7:49 Reclassify slope
12:43 Hillshade

https://www.qgis.org
https://www.smsgis.co.za

30m SRTM elevation grids - https://en.wikipedia.org/wiki/Shuttle...
30m SRTM - http://dwtkns.com/srtm30m/

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