Friday, 21 December 2018

QGIS calculate the 3D surface area of a region?


I would like to calculate the true surface area of a region from DEM (2D elevation data).


Is it possible to do this with QGIS?


And if yes, how?


I managed to obtain a 3D visualization of the elevation data using nviz (a GRASS-module) but I do not see any possibility to calculate the 3D surface area.




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