# LAStools **Repository Path**: borange54/LAStools ## Basic Information - **Project Name**: LAStools - **Description**: asdsasdasdasdasd - **Primary Language**: C++ - **License**: LGPL-2.1 - **Default Branch**: master - **Homepage**: None - **GVP Project**: No ## Statistics - **Stars**: 0 - **Forks**: 0 - **Created**: 2022-07-21 - **Last Updated**: 2024-07-15 ## Categories & Tags **Categories**: Uncategorized **Tags**: None ## README # LAStools **Award-winning software for efficient LiDAR processing (with LASzip)** ## Overview Tools to process LiDAR data files. The data files has the ASPRS LAS format (version 1.0-1.4) or the losslessly compressed, but otherwise identical twin, the LAZ format. See the table below to see what tools and converters are provided. LAStools consist of different parts: * LASlib, the low level processing API. * LASzip, the compressing/decompressing API. Both parts are for free and open source. * LAStools toolset. Additional tools, based on LASlib and LASzip to process LiDAR data. Some of the tools are also free to use. Some of them are licensed. All code is written in ultra-light-weight, very efficient and superfast C++. LAStools are a collection of highly-efficient, scriptable tools with multi-core batching that process LAS, compressed LAZ, Terrasolid BIN, ESRI Shapefiles (SHP), ASCII and others. You find the open-source part in .\LASlib and .\LASzip The documentation is placed at .\bin ## Open source tools: * `las2las` extracts last returns, clips, subsamples, translates, etc ... * `las2txt` turns LAS into human-readable and easy-to-parse ASCII * `lasindex` creates a spatial index LAX file for fast spatial queries * `lasinfo` prints out a quick overview of the contents of a LAS file * `lasmerge` merges several LAS or LAZ files into a single LAS or LAZ file * `lasprecision` analyses the actual precision of the LIDAR points * `laszip` powerful, lossless LiDAR compressor that turns large LAS files into much smaller LAZ files that are only 7 - 20 percent of the original file size * `txt2las` converts LIDAR data from ASCII text to binary LAS format ## Closed source tools: * `las2dem` rasters (via a TIN) into elevation/slope/intensity/rgb DEMs * `las2iso` extracts, optionally simplified, elevation contours * `las2shp` turns binary LAS into ESRI's Shapefile format * `las2tin` triangulates the points of a LAS file into a TIN * `lasboundary` extracts a boundary polygon that encloses the points * `lascanopy` computes many raster and plot metrics for forestry applications * `lasclassify` finds buildings and the vegetation above the ground * `lasclip` clips points against building footprints / swath boundaries * `lascolor` colors the LAS points based on ortho imagery in TIF format * `lascontrol` quality checks elevations for a list of control points * `lascopy` copies ttributes using the GPS-time stamp and the return number * `lasdatum` transforms rom one horizontal datum to another * `lasdistance` classifies,flags, or removes points based on distance from polygonal segments * `lasduplicate` removes duplicate points (with identical x and y, z optional) * `lasgrid` grids onto min/max/avg/std elevation, intensity, or counter rasters * `lasground` extracts the bare-earth by classifying all ground points * `lasground_new` an improved version of lasground for complex terrains * `lasheight` computes for each point its height above the ground * `lasnoise` flags r removes noise points in LAS/LAZ/BIN/ASCII files * `lasoptimize` optimizes ata for better compression and spatial coherency * `lasoverage` finds he "overage" of a airborne collect that get covered by multiple flightline * `lasoverlap` checks overlap & vertical/horizontal alignment of flight lines * `lasplanes` finds planar patches in terrestrial, mobile, (airborne?) scans * `lasprecision` reads IDAR data in the LAS format and computes statistics about precision "advertised" in the header * `lasprobe` probes he elevation of a LIDAR for a given x and y location * `laspublish` do D visualization of LiDAR data in a web browser using the WebGL Potree * `lasreturn` reports eometric return statistics and repairs 'number of returns' field based on GPS times * `lassort` sorts points by gps_time, point_source, or into spatial proximity * `lassplit` splits points of LAS file(s) into flightlines or other criteria * `lasthin` thins lowest / highest / random LAS points via a grid * `lastile` tiles huge amounts of LAS points into square tiles * `lastool` is an old GUI for multiple LAStools (now each tool has its own GUI) * `lastrack` classifies LiDAR point based on distance from a trajectory * `lasvalidate` determine f LAS files are conform to the ASPRS LAS specifications * `lasvdatum` transforms iDAR from ellipsoidal to orthometric elevations using a grid * `lasview` visualizes a LAS file with a simple OpenGL viewer * `lasvoxel` computes voxelization of points * `e572las` extracts the points from the E57 format and stores them as LAS/LAZ files * `shp2las` turns an ESRI's Shapefile into binary LAS ## BLAST extension * `blast2dem` rasters like las2dem but with streaming TINs for billions of points. * `blast2iso` contours like las2iso but with streaming TINs for billions of points. ## Binaries For Windows all binaries are included in the download file. All open source tools can be compiled from the source code. For MSVC6.0 there is a project file. For Linux and MacOS the makefiles are included. Simply go into the root directory and run 'make': The binary download contain the ArcGIS toolbox in `.\LAStools\ArcGIS_toolbox` and the QGIS toolbox in `.\LAStools\QGIS_toolbox`. A few example DOS batch scripts can be found in the `.\LAStools\example_batch_scripts` directory. 1. `unzip LAStools.zip` 2. `cd LAStools/` 3. `make` ## Links Full windows binary download at https://downloads.rapidlasso.de/LAStools.zip Linux binaries on request. * official page: http://lastools.org * company page: https://rapidlasso.de * user group: http://groups.google.com/group/lastools ## License Please read the `LICENSE.txt` file for information on the legal use and licensing of LAStools. I would also really like it if you would send me an email and tell me what you use LAStools for and what features and improvements you could need. 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