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Name:Ahmed Bakhaty
Email
Institution:UC Berkeley
Message:
I am getting the following error when I switched to mac (works fine in ubuntu (linux))

Cannot access file /private/tmp/iso2mesh-bakhaty/post_vmesh.a.node.

 /Users/bakhaty/v85/fe2/utilities/mesh/bin/tetgen.mexmaci64 -A -q1.414adisp  /private/tmp/iso2mesh-bakhaty/post_vmesh.poly: Segmentation fault

Any ideas?

Thanks,

A


Time:: Fri Aug 18 2017 17:00:46 GMT-0700 (PDT)</timestamp>

Name:Marie-Ange
Email
Institution:Institut Pascal, Université Clermont Auvergne France
Message:
Hi !

I use iso2mesh to create a mesh on a 3D binary volume. Thanks to vol2mesh and 'cgalmesh' i am able to create a surface and a volume tetrahedral mesh (vol2mesh(vol,512,512,200,opt,maxvol,1,'cgalmesh',[]);) In the code the following command is used : [node elem,face]=cgalv2m(vol,opt,maxvol);

then i am able to plot the tetrahedral volume, and cut it to see the tetrahedral mesh inside : plotmesh(node,elem,'z<150'); (as on the following website : http://morrisvanegas.com/forme/brain.html paragraph ISO2MESH).

Finally i want to save it : to only the surface but the entire tetrahedral volume :

savestl(node,elem,'file.stl'); Unfortunately it does'nt work, moreover i think that "savestl" save only the surface and doesn't save the volume, is it correct ?....

Can you help me ? to summary i want to save the results of vol2mesh with cgalmesh option in stl format.

Thanks a lot in advance !

Best regards.


Time:: Tue May 16 2017 16:40:07 GMT+0200 (CEST)</timestamp>

Name:Chengcheng Wang
Email
Institution:
Message:
Hello,
  Now I met some difficulties when I study the subject of the time, so I want to ask you, how to use iso2mesh to make three-dimensional matrix  converted into the model tant can be used in FLUENT? This three dimensional matrix is binary matrix of image processing. Thank you very much for your reply.(I don't well in english ,I‘m so sorry to that)

Time:: Sat Jun 11 2016 11:12:51 GMT+0800 (中国标准时间)</timestamp>

Name:NIKHIL PILLAI
Email
Institution:ub
Message:
hi i m using the function "savestl" and have passed nodes, elements and the file name but i am not getting the file in .stl format, its just typpe=file and i am not able to access it. what can be the problem ? thanks


Time:: Thu Nov 27 2014 20:07:38 GMT-0500 (Eastern Standard Time)</timestamp>

Name:octavian lie
Email
Institution:UT San Antonio
Message:
Dear all,

I plan creating surface meshes (for now) for individual 4-layer BEM (skin, skull, CSF , brain), using freesurfer /MNE volumes and surfaces as imput. For the BEM model I use, requirements are: surfaces have to be nonintersecting, closed, limited to 500-5000 vertices each, and delivered in surfacical FS output (such as ?h.pial) or as ASCII file. While I do not have any other constrains except those mentioned for getting boundary meshes such as skin, outer skull, inner skull, I need to use freesurfer pial surfaces (as such or smoothed/eroded 2-3 mm) for the source surface (cortex) for several reasons: consistency with prior experiments, good pial atlases, surface-based registration. It follows that the CSF-gray boundary has to be nonintersecting with this freesurfer pial-derived source surface. I would like to know whether iso2mesh can segment a freesurfer volume 1) creating surface that are nonintersecting, closed, downsampled to 500-5000 vertices each, and delivered in surfacical FS output (such as ?h.pial) or as ASCII file 2) able to create a CSF-gray boundary mesh not intersecting with the freesurfer pial-derived source surface (this boundary mesh can for example be created either by downsampling of the original pial, a smoothed pial surface-such as freesurfer's outer-smoothed pial-, or any other method that preserves the "nonintersection with the source space).

I know there are a lot of factors to determine a good vs bad outcome, but I would like to know in principle, Please advise,

Octavian Lie, MD PHD UT San Antonio


Time:: Tue Jan 07 2014 22:29:09 GMT-0600 (Central Standard Time)</timestamp>

Name:Medani
Email
Institution:L2E UPMC Paris
Message:
Hello, thank you for your work, I m à PhD student, in my first year, I will use your programme in my research, so I have some questions about your codes,

1- What is the unit of mesur that you use (centimetres, inches...) 2- How do you numerate the node of the mesh in FEM?

Thank you

Best regards


Time:: Thu Jan 31 2013 17:25:22 GMT+0100 (Paris, Madrid)</timestamp>
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