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The above error means that the output TIFF generated by BLAST is too large (more than 2GB or more than a certain number of rows or columns) to be stored as a TIF file. Use the IMG format instead that …

But LAStools does not use these histograms anyways for anything serious (and I think that other LiDAR software does not either). …

For the latest version of QGIS 2.14 there should be no need to replace the 'lidar' folder in C:\OSGeo4W64\apps\qgis\python\plugins\processing\algs\lidar with the folder downloaded from http://rapidlasso.com …

About three months ago LAStools was updated to provide support for most EPSG codes to offer more ways to re-project with las2las. However, there are still two limitations: (1) the re-projection must u …

This is rapidlasso, creators of LAStools. It should be possible to configure QGIS such that a call to "WinE" is automatically prepended to each LAStools call. That is the idea behind providing an opti …

It's perfectly valid (although not usual) for the LAS header to contain additional bytes. It seems Trimble always writes 375, no matter if it's LAS 1.2 (227 bytes), LAS 1.3 (235 bytes), or LAS 1.4 (37 …

The "fallout" of this episode set free a lot of energy and resulted in me turning LAStools into a fully featured LiDAR processing suite and LASzip into an industry-strength LiDAR compressor. …

The only difference between LAS 1.2 and LAS 1.3 is the ability to store returns together with a references to the full waveform data. This ONLY is the case for point types 4 and 5. Most of the time pe …

It is always a good idea to check any new LiDAR in LAS or LAZ format with the LAS validator tool as this will report any warnings or - more severe - failures in the file's adherence to the ASRPS specification …

You need to use the spatial indexing capability available within LASlib. Here is an example for running a query on one point that is known a priori. Note that you need your LAS file to have an accompa …

I do not think ArcGIS should be your software of choice for producing proper LAS files because Esri added support for LiDAR very late and was not a contributing partner of the LAS community. … Although ArcGIS can now consume LAS files and generate a number of derivatives, I would advise you to stick with LiDAR softwares that are specialized in producing specification-compliant LAS or LAZ files …

If you look at the source code of the QGIS toolbox for LAStools (now part of the processing plugin framework) you can see how to call external software (here LAStools) for carrying out LiDAR processing …

The "quality" of the CHM raster that you generate from the LiDAR points as input to the CanopyMaxima algorithm will significantly affect your results. …

Yep. The LAStools toolbox is for single files. The LAStools Production toolbox is for many of files (i.e. usually a folder of tiles).

All directory names and all file names must be free of spaces and other special symbols and cannot be Unicode characters. Only good old ASCII file and directory names are supported by LAStools at the …