mex problems of gptoolbox about gptoolbox

[alecjacobson]

Which Eigen Version do you have? Which CGAL version? Which Matlab?

On Thu, May 28, 2015 at 11:26 PM, yqwang2006 [email protected]
wrote:

I'm using the gptoolbox to generate some sdf data from 'off' files.
However, the gptoolbox would make MATLAB crash. First, I compiled the
signed_distance_isosurface.cpp in 'mex' dir using next command:

' mex -g -largeArrayDims -DMEX CXXFLAGS="$CXXFLAGS -std=c++11"...
-I/usr/local/igl/libigl/include ...
-I/usr/include/eigen3 ...
-I/usr/include ...
-L/usr/lib ...
-lCGAL -lCGAL_Core -lgmp -lmpfr...
-lboost_thread -lboost_system ...
signed_distance_isosurface.cpp'

This process would not generate any errors. However, MATLAB would crash
when I tried to run a demo. The demo code is:

addpath('mesh');
addpath('mex');
[V,F,UV,C,N] = readOFF( 'bed.off');
[OV,OF] = signed_distance_isosurface(V,F);

The error is shown in next fig. Could you please help me? Thanks.

[image: image]
https://cloud.githubusercontent.com/assets/7324348/7875864/614757a0-05f5-11e5-8297-8ea59d00d38a.png

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#4.

[yqwang2006]

The dependent lib versions are:
cgal: 4.6
boost: 1.58
eigen: 3.2.4

[yqwang2006]

matlab: 2014b

[alecjacobson]

Can you share your chair?

On Fri, May 29, 2015 at 12:05 AM, yqwang2006 [email protected]
wrote:

matlab: 2014b

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#4 (comment)
.

[yqwang2006]

OK, I'll send you by email due to github doesn't support the file type.

[alecjacobson]

Seems to be a bug. For now I'd suggest removing any degenerate faces from your input mesh.

[alecjacobson]

This no longer crashes (at least by 4ced5eb but probably much earlier).

[alecjacobson]

BTW, I used:

[OV,OF] = signed_distance_isosurface(V,F,'SignedDistanceType','unsigned','Level',0.3,'DistanceBound',0.004,'RadiusBound',0.004);

to generate this: