mesh3d for int3d

[Samuel GOUGEON]

Hello,
How is it possible to build the set of 3d-meshing tetrahedrons expected
by int3d(), from the set of nodes seeding the volume over which the integral
must be calculated ? I don't find any mesh3d() function equivalent to 
mesh2d()
for int2d() and doing this job.
I guess that since int3d() is defined and that this building is not trivial,
i am missing some function.
Thank you for any hint.
Regards
Samuel
PS: Moreover, OpenFEM can no longer be used with Scilab 5