heremaps / pptk

The Point Processing Toolkit (pptk) is a Python package for visualizing and processing 2-d/3-d point clouds.
https://heremaps.github.io/pptk
MIT License
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Loading point cloud in UTM coordinate system #51

Open widssaguenay opened 3 years ago

widssaguenay commented 3 years ago

Hello. When I load a point cloud that its coordinates are large numbers (E.g. x=317785.23 and y=5049158.31 and z=40.352), then I try to work with the viewer, all visually seems it. Then I select a point and get its coordinates back, it returns awkward numbers (E.g. x=89875.734375 , y=143165.140625 , z=17802.54296875). What happened? Did the viewer shift or transform all the points to a new coordinate system when loading the data? If so, where can I find those transformation parameters so that the point-picking operation can actually return me sensible coordinates? Thanks