some experiments for processing lots of LiDAR into derivatives
tool for producing CHM by mapsheet or letterblock using availaible lidar by index.
Example usage to calculate chm for calculating all of 082K mapsheets:
python -m process_letterblcok 082k
Example usage to calculate all mapsheets like 082k02%
python -m process_letterblock 082k02
Example usage to calculate only mapsheet 082k023
python -m process_letterblock 082k02