[Gmsh] another problem, with the same project

[Christophe Geuzaine]

philippe carette wrote:

> re Hi,
> now, i get some problem with meshing the project : i get a big problem, 
> as far back as  the 2D meshing.

Normal: your geometry is clearly wrong (there are degenerate surfaces--
select for example Surface 266 in Tools->Visibility).

Christophe


> tx for help.
> 
> 
> 
> ------------------------------------------------------------------------
> 
> // General.Trackball = 0;
> // General.RotationCenterGravity = 0;
> // General.RotationCenterX = 0;
> // General.RotationCenterY = 0;
> // General.RotationCenterZ = 0;
> // General.RotationX = 10;
> // General.RotationY = 70;
> // General.TranslationZ = -525;
> 
> // General.ZoomFactor = 2;
> 
> 
> lc = 5;
> lcMasse = 3;
> lcContact = 1.5;
> lcEdge = 1;
> 
> 
> Point(1) = {70.32,18.3,0.,lcMasse};
> Point(2) = {67.77,7.32,0.,lcMasse};
> Point(3) = {64.91,-5.25,0.,lc};
> Point(4) = {63.32,-11.77,0.,lc};
> Point(5) = {50.27,-16.07,0.,lcMasse};
> Point(6) = {36.11,2.86,0.,lcContact};
> Point(7) = {66.34,1.03,0.,lc};
> 
> Line(1) = {1,2};
> Line(2) = {3,4};
> Line(3) = {4,5};
> 
> 
> Point(8) = {60.06,2.47,0.,lcMasse};
> Circle(5) = {2,7,8};
> Circle(6) = {8,7,3};
> 
> 
> Point(18) = {65.07,18.25,0.,lcMasse};
> Point(10) = {59.5,17.66,0.,lcMasse};
> Point(11) = {35.20,5.09,0.,lcContact};
> Point(12) = {49,15.59,0.,lcMasse};
> Point(13) = {41.86,13.51,0.,lcContact};
> Point(17) = {36.50,10.95,0.,lcContact};
> Point(14) = {35.20,9.50,0.,lcContact};
> Point(15) = {34.84,7,0.,lcContact};
> 
> CatmullRom(7) = {6,11,15,14,17,13};
> CatmullRom(8) = {13,12,10,18,1};
> Line(9) = {5,6};
> 
> 
> Line Loop(11) = {5,6,2,3,8,9,7,1};
> Plane Surface(12) = {11};
> 
> 
> Extrude Surface {12, {0,0,-50}};
> Characteristic Length {21, 26, 30, 34, 38, 42, 43, 44, 45, 46, 50} = lc * 2;
> Characteristic Length {19, 51, 52, 53} = lc * 5;
> 
> Surface Loop(226) = {49,12,25,29,33,37,41,45,54,53};
> Volume(227) = {226};
> 
> Bande = 100;
> Physical Volume (Bande) = {227};
> Mouve = 110;
> Physical Surface(Mouve) = {12};
> Fond = 120;
> Physical Surface(Fond) = {54};
> SectionSym = 130;
> Physical Surface(SectionSym) = {54} ;
> 
> Rayon = 30;
> XIni=-0.25;
> YHaut = 4;
> ZPress = 0.03;
> Point(89) = {52,0,ZPress,lcEdge};
> Point(90) = {52+Rayon,0,ZPress,lcEdge};
> Point(91) = {52, Rayon,ZPress,lcEdge};
> 
> Circle(258) = {90,89,91};
> 
> Extrude Line {258, {0,0,1}, {52,0,ZPress}, Pi/2};
> Extrude Line {259, {0,0,1}, {52,0,ZPress}, Pi/2};
> Extrude Line {263, {0,0,1}, {52,0,ZPress}, Pi/2};
> 
> Line Loop(271) = {259,263,267,258};
> Plane Surface(272) = {271};
> Extrude Surface {272, {0,0,30}};
> 
> Surface Loop(295) = {281,272,285,289,293,294};
> Volume(296) = {295};
> 
> Bille = 200;
> Physical Volume (Bille) = {296};
> 
> PeauBille=210;
> Physical Surface(PeauBille) = {272};
> 
> 
> ------------------------------------------------------------------------
> 
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-- 
Christophe A. Geuzaine
Applied and Computational Mathematics, Caltech
geuzaine at acm.caltech.edu - http://geuz.org