I have a las catalog with overlapping tiles. LidR warns me of this, and I'm wondering how concerned I should be. The tiles are in las version 1.2 with point record format 1. None of the points are marked as
Withheld so there is no filtering to be done. I did a test on two of the tiles and found that the area of the intersection is 2200 square meters, and each of the tiles are about 225 hectares. This seems like a relatively small portion of overlap. Do I need to modify the tiles? Or can I process them like normal?
> lascheck(ctg) Checking headers consistency - Checking file version consistency... ✓ - Checking scale consistency... ✓ - Checking offset consistency... ✓ - Checking point type consistency... ✓ - Checking VLR consistency... ✓ - Checking CRS consistency... ✓ Checking the headers - Checking scale factor validity... ✓ - Checking Point Data Format ID validity... ✓ Checking preprocessing already done - Checking negative outliers... ✓ - Checking normalization... no Checking the geometry - Checking overlapping tiles... ⚠ Some tiles seem to overlap each other - Checking point indexation... no - List item
> ctg class : LAScatalog extent : 554999.8 , 562500.1 , 4555500 , 4561501 (xmin, xmax, ymin, ymax) coord. ref. : NA area : 33.61 kunits² points : 370.01 million points density : 11 points/units² num. files : 16