| voxel_proj and seg fault [message #29559] |
Wed, 27 February 2002 02:16 |
Jacques Basson
Messages: 17
Registered: May 1999
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Junior Member |
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Hi all
I seem to be getting segmentation faults when using the interpolate
keyword to voxel_proj (strangely enough, removing the rotations gets rid
of the segfault, but then that's not exactly useful). It is repeatable
on several machines running linux or solaris. xvolume works fine, but is
not configurable enough (automating translations / getting a contour
plot instead of an image out of the thing...).
Does anyone know of a suitable workaround, apart from not using the
interpolate keyword - it's nice to have smooth-looking final plots :)
Cheers,
Jacques
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IDL> print, !version
{ x86 linux unix linux 5.5a Feb 7 2002 32 32}
IDL> n = 192
IDL> vol = randomu(1, n+6, n+6, n+6)
IDL> for i=0,10 do vol = smooth(vol, 3)
IDL> vol = bytscl(vol(3:n+2, 3:n+2, 3:n+2))
IDL> !x.s = [0.,1.] / (n-1)
IDL> !y.s = [0.,1.] / (n-1)
IDL> !z.s = [0.,1.] / (n-1)
IDL> t3d, /reset, translate=[-0.5,-0.5,-0.5]
% Compiled module: T3D.
IDL> t3d, rotate=[60,0,0]
IDL> t3d, rotate=[0,0,-80]
IDL> t3d, translate=[0.5,0.5,0.5]
IDL> rgbo = bindgen(256)#[1,1,1,1]
IDL> result = voxel_proj(vol, rgbo, /interpolate)
Segmentation fault
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