On Nov 15, 2011, at 5:37 PM, Charles Cowart wrote:

> Hello,
> 
> I'd like to ask the community if it has become standard practice to generate 
> LAS files with absolute GPS time values using liblas 1.6.1. It does not 
> appear to me that absolute GPS time is supported in liblas as it's defined in 
> the las 1.2 specification. Specifically, it does not appear that there is a 
> function in txt2las to set the lowest-order bit in the reserved field to 1 
> when specifying such values. I would think however, that it would be fairly 
> straightforward to interpret the value as absolute if it is greater than the 
> number of seconds in a week. Do others have experience with this issue?

This is simply an oversight, and I don't think anyone has had the need for it 
in 1.2 yet.  Can you file a ticket on github (patches graciously accepted :) 
that models how you would like to be able to modify this value via txt2las (and 
other utilities too, I suppose)?  I'll try to clean this one up before the 
release.

Howard_______________________________________________
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