[Liblas-devel] GPS time and intensity?

[Howard Butler]

On Oct 13, 2008, at 1:13 PM, Jason Woolard wrote:
>
> On the GPS time issue, I think it's definitely important to have  
> more precision than the nearest second. The GPS/Inertial or  
> trajectory data is usually measured at ~200 Hz and one of the useful  
> things about having the GPS time stamp is the ability to match up a  
> particular pulse with the corresponding time in the vehicle  
> trajectory or scanner angle data. Commercial topographic lidar  
> systems are now pulsing at 100 kHz + so having the times rounded to  
> a second would mean you could potentially have 100,000 points or  
> more with identical times. In addition, the time stamp will be even  
> more important as laser waveform data becomes more mainstream.

Jason,

After thinking about this a bit, I think the problem is just related  
to the Python bindings throwing out the fractional seconds.  I took a  
crack at fixing this in the Python bindings

http://liblas.org/changeset/945

Here's a ticked to track the changes:

http://liblas.org/ticket/83

If you could use subversion to build from trunk or the 1.0 branch and  
test that things are behaving correctly, it would be greatly  
appreciated.

Thanks,

Howard