Re: [spdlib-develop] where is the function of hemisherical projection

Hi Zhan, the -x option in spdtranslate is for spatially indexing a pulse in a 2D Cartesian grid, which requires one location along the path of a laser beam to index by. This is typically the location of the first or last return (point). To spatially index by class would not work if none or >1 o

Re: [spdlib-develop] Create new SPD file from python

Hi Kevin, I was able to run your code and convert the file to LAS with: spdtranslate --if SPD --of LAS -i lidar.spd -o lidar.las You need to index your SPD before loading it up in SPDPointsViewer, for example: spdtranslate --if SPD --of SPD -x FIRST_RETURN -i lidar.spd -o lidar_seqind.spd cheers