| | 1 | == Splitting LiDAR point clouds == |
| | 2 | == Discrete LiDAR == |
| | 3 | |
| | 4 | In the case of purely discrete point clouds we can use lasmerge to produce equal divided files. |
| | 5 | |
| | 6 | A script exists to do this automatically: |
| | 7 | |
| | 8 | {{{ |
| | 9 | split_las.py (-d INPUTDIR | -f INPUTFILE) [-o OVERLAP] outputdir fraction |
| | 10 | }}} |
| | 11 | |
| | 12 | This can be run on either a single file or a directory of las files. |
| | 13 | |
| | 14 | Use -o to specify the number of seconds of overlap, this can be used with the airplanes ground speed to calculate overlap. For instance 7 seconds 140 knots will result in an overlap of 504 metres (7 seconds * 72 m/s). Give the script a fraction for the number of lines to divide the line into, I usually just give it 3. |
| | 15 | |
| | 16 | == Full Waveform == |
| | 17 | |
| | 18 | Full wave form data cannot use the script above. Unfortunately you will need to produce this using alspp and its fence feature. |