LasGround Error

[Sophia Thompson]

Hello all,

wondering if anyone has run into the following errors?

ERROR: point type 6 of size 30 not supported (with LASzip)
ERROR: cannot open laswriterlas with file name 'C:\Users\Sophia\Documents\Masters Project\Masters Data\SFC_LIDAR\SFCo_LiDAR_las_SA\LasGround\pc16401510.laz'
ERROR: could not open laswriter

Do I need to put my laz files into the same directory as the LAStools toolset?

Below are the command line entries of two tries and the associated error messges which are the same. I tweeked the naming in the second try per advise off a group entry but it must be to do with the point sizes?

#Try2: first try errored= couldn't find lasWriter...
lasground_new -i "C:\Users\Sophia\Documents\Masters Project\Masters Data\SFC_LIDAR\SFCo_LiDAR_las_SA\pc16401510.las" -nature -compute_height -odir "C:\Users\Sophia\Documents\Masters Project\Masters Data\SFC_LIDAR\SFCo_LiDAR_las_SA\LasGround" -o "pc16401510_Ground.laz" -sp83 NM_C -survey_feet
#Error:    ERROR: point type 6 of size 30 not supported (with LASzip)
#ERROR: cannot open laswriterlas with file name 'C:\Users\Sophia\Documents\Masters Project\Masters Data\SFC_LIDAR\SFCo_LiDAR_las_SA\LasGround\pc16401510_Ground.laz'
#ERROR: could not open laswriter

#Try3 changed output (removed .laz from output- removed name)
lasground_new -i "C:\Users\Sophia\Documents\Masters Project\Masters Data\SFC_LIDAR\SFCo_LiDAR_las_SA\pc16401510.las" -nature -compute_height -odir "C:\Users\Sophia\Documents\Masters Project\Masters Data\SFC_LIDAR\SFCo_LiDAR_las_SA\LasGround" -olaz -sp83 NM_C -survey_feet
#ERROR: point type 6 of size 30 not supported (with LASzip)
#ERROR: cannot open laswriterlas with file name 'C:\Users\Sophia\Documents\Masters Project\Masters Data\SFC_LIDAR\SFCo_LiDAR_las_SA\LasGround\pc16401510.laz'
#ERROR: could not open laswriter

and here is a copy of the input screen to show information related to my laz file.

Any help is greatly appreciated.

Sophia

[Martin Isenburg]

Hello Sophia,

How long ago was it since you last updated your LAStools version. Can you run

lasground -version

or

lasground_new -version

I think your version might be so old that it is from before "native LAS 1.4 compression" was added to the core library LASlib (with LASzip) that is powering all LAStools. Try updating

http://rapidlasso.com/LAStools

Regards,

Martin @rapidlasso

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