[Gmsh] Geometry error

[David Colignon]

On 15/01/10 02:20, Sang-Yeop Chung wrote:
> Dear, gmsh developer
>
>
> Hi, When I loading the geometry that I made,
>
> the error message is represented as follows:
>
> ---------------------------------------------------------------------
> Info    : Reading
> '/home/chung/projects/simulations/mesh_generation/voronoi/per_voron.geo'
> Error   : Plane surface 117 (0.750802x+-0.638977y+0.167345z+0.317817=0)
> is not plane!

Hi,

Is this error message not clear enough ?

It means that the four points (2591,2050,2974,2975) delimiting surface 117 (use Tools->Visibility and/or 
Tools->Options->Geometry->Visibility->Point numbers) are not exactly in the same plane. You should improve the precision 
of the calculation of the position of the points, or use

Ruled Surface(117) = {117};

instead of

Plane Surface(117) = {117};


> Error   : Control point 2591 = (0.7877,0.581,0.5835), val=-9.61745e-06
> Error   : Plane surface 129
> (0.467793x+-0.0218669y+-0.883568z+0.0946044=0) is not plane!
> Error   : Control point 3782 = (0.7571,0.6281,0.2782), val=1.83607e-05
> Error   : Plane surface 1155 (0.644102x+0.76073y+-0.0801381z+0.531802=0)
> is not plane!
> Error   : Control point 2206 = (0.2334,0.5204,0.1792), val=5.5143e-05
> Info    : Read
> '/home/chung/projects/simulations/mesh_generation/voronoi/per_voron.geo'
> Info    : Writing
> '/home/chung/projects/simulations/mesh_generation/voronoi/error.txt'
>
>
> But when i meshing it using 3D delaunay, it works (it can meshing it)

Yes, but your 3D mesh will be wrong and contain holes because these 2D faces are not meshed and the volumes based on 
these surfaces are not meshed too...

Regards,

Dave

-- 
David Colignon, Ph.D.
Collaborateur Logistique du F.R.S.-FNRS
CÉCI - Consortium des Équipements de Calcul Intensif
ACE - Applied & Computational Electromagnetics
Sart-Tilman B28
Université de Liège
4000 Liège - BELGIQUE
Tél: +32 (0)4 366 37 32
Fax: +32 (0)4 366 29 10
WWW:    http://hpc.montefiore.ulg.ac.be/
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>
> what is the problem?? what is the meaning of that error and how can i
> fix it??
>
> I also attached my .geo file
>
> Thank you
>
>
> Regards.
>
> Chung
>
>
>
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