[pdal] Raster to points

Steven Spiegel steven.spiegel at slu.edu
Thu Apr 25 05:29:08 PDT 2019


Good morning,

I have a question about applying rasters to point clouds.  Before I created a TIF, I classified the ground, curvature, height above ground, and normalized intensity.  I then exported it as a tif (resolution = 0.1 m, average, etc) without the ground.  I then combined the three aforementioned attributes and used some image segmentation techniques to separate the objects in the scene.  I now have a labeled raster of my objects (they are not yet classified, just segmented).  Is there a way to then apply a label (as opposed to a class) on the points?  I know you can colorize with a raster or even if I turned it into a shapefile I can then classify that way, but I'm not quite at that level.  I looked through the dimension list  (https://pdal.io/dimensions.html) and didn't see one that would fit for what I'm looking for.  Can I create a dimension and then apply the label?  If you need further clarification I can provide it.  Thanks!

Steve
Dimensions — pdal.io<https://pdal.io/dimensions.html>
Dimensions¶. PDAL dimensions describe the combination of data’s type, size, and meaning. The following table provides a list of known dimension names you can use in Filters, Writers, and Readers descriptions.
pdal.io


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