Generate a DSM from a point cloud in QGIS using the LASTools plugin
Channel: Hans van der Kwast
Date: 2020-05-11

This video demonstrates how to generate a digital surface model (DSM) from a city using a point cloud (LAS) file. First you see how to configure the LASTools plugin. Then we read the metadata and visualise the point cloud. Next we have to split the dataset before we can generate the 0.5 m resolution raster DSM's. After merging the DSM's a hillshade is applied using the Terrain Shading Plugin. The result is visualised in the 3D View. Finally an aerial photograph is draped over the DSM.The example uses the AHN3 Lidar dataset of Rotterdam, the Netherlands, downloaded from PDOK (https://www.pdok.nl/introductie/-/article/actueel-hoogtebestand-nederland-ahn3-)

The video is based on this tutorial https://www.geodose.com/2020/01/tutorial-lidar-data-processing-lastools-qgis.html

LASTools from rapidlasso can be downloaded here: https://rapidlasso.com/lastools/

The Terrain Shading plugin is available here: http://www.zoran-cuckovic.from.hr/QGIS-terrain-shading/

This video is part of IHE Delft Open CourseWare. For more free videos on GIS go to http://www.gisopencourseware.org

Do you want to learn more about point cloud processing and 3D visualization in QGIS? Enroll for my course at  @udemy : https://www.udemy.com/course/qgis-pointcloud/?referralCode=A8511E57795386E9345D

(c) OpenStreetMap Contributors

#qgis #3d #pointcloud