Terrasolid Tutorial [upd] File

| Error | Cause | Solution | | :--- | :--- | :--- | | | TIN has too many points (Over 2 million). | Thin the data. Use Point cloud > Thin to reduce to 1 point per 50cm. | | Spikes in terrain model | A low point (hole) or high point (bird) was classified as ground. | Go back to TerraScan. Use Draw fence around the spike. Reclassify that specific area manually. | | Ground algorithm classified a river as “above ground” | The water reflects the laser to the bottom, creating a false low point. | Use Classify Water tool (requires intensity threshold). Or manually fence the river and set it to ground. | | TerraPhoto is black and white | Wrong color channel selected. | View > Color Source > RGB (not Intensity). |

Raw aerial LiDAR often contains birds, clouds, or sensor noise floating above or below the ground. terrasolid tutorial

In TerraScan: Macros > Run... Select your .txt file. Go to lunch. Come back to a finished project. | Error | Cause | Solution | |