On 06/03/2020 07:12, Benedikt Hallinger wrote: > Hello, could gdal be of use here? > At least it is what i use to process LIDAR data an i think i used it > also to process aster+srtm data (including patching voids from the one > with the other) > If there's a reliable workflow to generate surface files for Therion using gdal then I guess so.