[Liblas-devel] problem accessing point_source_id using Python API

[Doug_Newcomb at fws.gov]

Stanley,
        What do you get as output for point source id if you dump one of 
your las files to comma separated text?  
http://liblas.org/utilities/las2txt.html  .  I ask because I have seen 
several las files that have been missing parts :-)

Doug

Doug Newcomb 
USFWS
Raleigh, NC
919-856-4520 ext. 14 doug_newcomb at fws.gov
---------------------------------------------------------------------------------------------------------
The opinions I express are my own and are not representative of the 
official policy of the U.S.Fish and Wildlife Service or Dept. of the 
Interior.   Life is too short for undocumented, proprietary data formats.



Stanley Wong <s.wong at kucerainternational.com> 
Sent by: liblas-devel-bounces at lists.osgeo.org
06/05/2012 12:43 PM

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"Liblas-devel at lists.osgeo.org" <liblas-devel at lists.osgeo.org>
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Subject
[Liblas-devel] problem accessing point_source_id using Python API






Hi,

I am trying to read point_source_id of lidar points using Python API like 
below:

inLas = liblas.file.File(r'<path>\test.las',None, 'r')
pt = inLas[0]
print pt.point_source_id


I keep getting value 0 on the point_source_id values in all the files I 
tested.   No problem on getting all other properties of Point, just not 
point_source_id.  I confirmed that the point source values are assigned in 
those LAS files using other software (LP360 and TerraSolid).

I have 2 liblas python installation on Windows 7, 1.7.0-2 from OSGeo4W, 
and 1.6.0 from pypi.python.org.  Both gave me the same results.

Can someone please let me know if this is a liblas setup problem, a bug on 
Python API, or simply wrong code on my part?

Thanks,

Stanley_______________________________________________
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