libLAS/libLAS — Issue #2: cannot set bit flag denoting absolute GPS time in libLAS 1.6+
Author: ccowart
Created: 2011-11-18 00:49:13+00:00
State: open

The las 1.2 specification allows the low-order bit of the LAS header's reserved field to be set to 1, to denote that time values are in absolute GPS time, rather than GPS week time. There doesn't seem to be a way to set this flag when supplying absolute GPS time values to txt2las. Perhaps an alternate character would be appropriate, for example:

'--parse txyz', represents GPS week time
'--parse sxyz' represents GPS absolute time.

Perhaps also lasinfo could state through xml and standard out whether the time is absolute or weekly.

I will also attempt to patch as soon as I can.