How to: Generate Contours, Ground Classifications, and DTMs / DSMs
Try it out ➡️ https://quantiscan.io
Learn how to classify point cloud data, generate surface models (DTM/DSM), and create contour lines — all inside your LiDAR/point cloud processing software. This quick walkthrough covers the full workflow from raw point cloud to finished contours, including how to clip to a specific area for targeted processing.
Perfect for surveyors, GIS analysts, drone mapping professionals, and anyone working with LiDAR or photogrammetry data.
Tags: point cloud classification, DTM, contour lines, LiDAR processing, GIS workflow, digital terrain model, ground classification, vegetation classification, drone survey, contour generation
Timestamps:
0:00 - Intro & overview
0:24 - Setting up the classifier (ground & vegetation)
1:15 - Running classification on desktop
1:54 - Reviewing classification results
2:14 - Generating a DTM surface model
2:48 - Generating contour lines
3:23 - Styling major & minor contours
3:53 - Viewing contours with the point cloud
4:05 - Exporting for Google Earth & raster options
4:49 - Clipping point cloud to a custom area
5:14 - Importing a boundary file to clip & export