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tiagodc / TreeLS

R functions for processing individual tree TLS point clouds
GNU General Public License v3.0
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no ground points, performing segmentation #25

Closed tasimuumbe closed 4 years ago

tasimuumbe commented 4 years ago

I am new to TreeLS and I am following the tutorial to process a TLS point cloud. When normalizing the point cloud, I am getting a warning message "no ground points, performing segmentation".

tiagodc commented 4 years ago

It's not a warning, just a message to the user, so no worries about that. When the input point cloud doesn't have any ground classification, tlsNormalize does it internally, it's even described in the function's help page. The message serves as an alert, as the user has no control over the ground filter algorithm or parameters used internally, so they might prefer to go back and do it with some fine tuning on that - check out lidR::classify_ground if you want more information on ground classification methods.