• whitebox version: 2.2.0
• Python version: 3.10.8

Description

Hi, I’m trying to compute the flow length using the DownslopeFlowpathLength function (both in python and in the QGIS inteface). The tool seems to work, but I have negative lengths as results. Am I doing something wrong? Could you explain what the output represents?
Thank you!

What I Did

wbt.downslope_flowpath_length(flow_dir_catch, flowlength_catch, esri_pntr=True)

Python/QGIS result:

Expected result: