On Jan 6, 2012, at 12:16 PM, Hongwei Shen wrote: > Hello, > > The scenario is: the user opens a large Lidar file, changes the > classification labels of a small number of points and save the changes > to the file. When the Lidar file is huge, it is time-consuming to > output all the points. So it would be better if only the modified > points are updated in the Lidar file. According to my understanding > now, Liblas needs to save all the (changed and unchanged) points to a > new Lidar file. That's because Liblas can open a Lidar file either in > read-only mode or write-only mode, but not in read-write mode. > > Do I understand correctly? Is there a way to only update some points?
Yes, your understanding is correct. libLAS does not support in-place updating of points. Howard _______________________________________________ Liblas-devel mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/liblas-devel
