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I'm trying to plot a large LAS (9GB, 269,671,586 points) using plot in the lidR library. (RStudio version 2022.07.2 Build 576, R version 4.2.2, lidR version 4.0.1)

I have plotted smaller LAS successfully but with the large las the plot (rgl) window opens but then RStudio crashes. There are no errors sent to the console that I can see.

I have tried using options(rgl.debug=TRUE) as per this answer but it has no effect. las_check returns no significant problems with the las. I'm just using plot(las) to do the plotting.

I'm guessing that it's the size of the LAS that is the problem but I'm not sure. How can I either plot a large las with lidR (if that is likely to be the problem) or get a detailed output for debugging?

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  • rgl definitively can't handle such a large file.
    – JRR
    Commented Nov 24, 2022 at 23:38
  • Okay. I remember there being another plotting system a while ago but I've searched and can't see any reference to it any more and I can't quite remember what it was called. Is there any other plotting option in R that I can use?
    – GlenS
    Commented Nov 24, 2022 at 23:43
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    There is github.com/Jean-Romain/lidRviewer but I recommend you to use a real point cloud viewer from another software.
    – JRR
    Commented Nov 25, 2022 at 1:11
  • Fair enough. Thanks for the advice.
    – GlenS
    Commented Nov 25, 2022 at 4:34

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As per comments, don't use R for viewing large point clouds.

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