[Liblas-devel] VLR in liblas 1.6.0 crashing

[Sullivan, Alicia]

Hi,

I am working with some LAS 1.2 point format 1 data that have a variable length record in them and liblas 1.6.0 for python seems to crash on these files. When I try to open these files I get a message that "something bad happened" and python has to close.

Here is what I am trying
from liblas import file
f = file.File('nc_2571.las', mode= 'r')

Just to make sure it wasn't my files, I found an example from Marten Isenburg of the v1.2 point format 2 las format and tried the same thing, no problem, the file opened just fine.  However when I added a vlr record to it using:

from liblas import file as lasfile
from liblas import vlr
from liblas import header as lasheader

f = lasfile.File('las12_example.las',None,'rb')
h = f.header

v = vlr.VLR()

v.userid='Alicia'
v.recordid = 12345

h.add_vlr(v)

f2 = lasfile.File('las12_example_vlr.las',header=h,mode='w')
for p in f:
    f2.write(p)
f2.close()

And tried to open the new file 'las12_example_vlr.las', it crashed with the same error as my file. Does anyone know if this is a known bug? Are there any work arounds or a newer python version that I can use where this is fixed?

Thanks,

Alicia Sullivan
IT Specialist, Weyerhaeuser



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