Setting Resolution tags in header seems broken about pylibtiff

[GoogleCodeExporter]

Yes, it is weird. Setting and getting SMAXSAMPLEVALUE works fine.
Note that SMAXSAMPLEVALUE is double while XRESOLUTION is float.
I tried to play with libtiff little bit but did not manage
to get correct results. Googling gives some hints (setting resolutionunit,
for example) but they did not work for me.

Original comment by pearu.peterson on 5 Jan 2010 at 9:32

• Changed state: Accepted

[GoogleCodeExporter]

Hi there,

I recently discovered when wrapping libtiff using ctypes that for the 
TIFFSetField call for X and Y Resolution tags I had to cast the python value as 
a c_double not a c_float

ctypes.c_double(xresolution)

ctypes.c_double(yresolution)

HTHs,

Cheers,

Matb

Original comment by [email protected] on 14 Sep 2010 at 12:54

[GoogleCodeExporter]

This issue was closed by revision r55.

Original comment by pearu.peterson on 23 Sep 2010 at 11:56

• Changed state: Fixed

[GoogleCodeExporter]

Thanks for the hint, Matb. I have applied the corresponding fix to SVN and
the given example works correctly now.

Original comment by pearu.peterson on 23 Sep 2010 at 11:58