LasDatasetToRaster does nothing to the Raster Layer
I have been trying to figure out how to clip and rasterize a LiDAR map file programmatically (Not through arcpy) I use C# but read many languages. So far I have been able to access and assign the LASD...
View ArticleCalculating coverage of vector polygon over other polygons?
I have a shapefile file that contains a LiDAR footprint and I’m trying to figure out how much a county is covered by the LiDAR footprint. Two separate shapefiles. The attribute table for the county...
View ArticleChange Z value precision in QGIS
The .ASC LiDAR files provided by the environment agency have height values provided to a precision of the level used to measure atoms. How to quickly lose a few of the pointless digits on the end to...
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Finding the origin in .laz file with LAStools
I obtained a .laz file, which I used lasinfo and las2txt to view the records. Scale Factor X Y Z: 0.00100000000000 0.00100000000000 0.00100000000000 Offset X Y Z: 22717.000 31027.000 21.000 Min X Y Z:...
View ArticleExtracting above ground features from unclassified LAS [closed]
What’s the best way to vectorize features from LAS? I have “Classified” LAS files, however they were never processed for classification. Thus of 181 million points (9 tile sample) about 60% are class...
View ArticleConverting LAS to DWG/DXF using open-source software?
Is there a way to convert LAS point clouds to DWG and/or DXF files using open source software? Also willing to script with Python – is this possible using libLAS/LASlib for example?
View ArticleHow does the offset values of LAS files relate to their coordinate system?
I have a conundrum concerning LiDAR data, the stored point offset, and the coordinate system. I process large amounts of LAS data in TerraScan (TS), which sits on top of Microstation (MS). I receive...
View ArticleConverting between coordinate systems for LAS file using LASPY
I am trying to convert a .las file from WGS84 to UTM17. I have some drone imagery that was used to generate a 3d point cloud/ .las file, but it is in latitude/ longitude instead of easting/ northing. I...
View ArticleClassifying individual trees from labelled LiDAR point cloud [duplicate]
This question already has an answer here: Extracting tree crown areas from remote sensing data (visual images and LiDAR) 5 answers
View ArticleHow to specify LAS dataset filters in ArcMap ModelBuilder?
I’m trying to create a tool in the ArcMap ModelBuilder to extract a canopy height raster from LiDAR data. I need to create rasters for ground elevation and first return. I’ve got my LAS dataset, and...
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