Hi All,
I am getting a segmentation fault using svn revision 20472 with the attached
input 2cil.geo, which merges a step file generated by FreeCAD using the same
OCE version as the one used to compile Gmsh after setting
Geometry.OCCConnectFaces = 1. The step contains two concentric cylinders, which
I want them to share the common surface. The same segfault at the same location
appears if using brep or iges.
I would appreciate if the developers could take a look at this issue.
$ gdb --args gmsh -3 2cil.geo
[...]
(gdb) run
[...]
-------
Dump of 0 Locations
-------
edges [ ] in faces [ 2 3 ]
edges [ 1 ] in face [ 1 ]
edges [ 1 5 6 ] in face [ 7 ]
edges [ 2 3 4 ] in face [ 4 ]
edges [ 2 5 ] in face [ 5 ]
edges [ 4 6 ] in face [ 6 ]
Check face 3 and 2
replace face 3 with 2
Info : -----------------------------------
Info : Compounds : 1 (1)
Info : Composite solids : 0 (0)
Info : Solids : 2 (2)
Info : Shells : 2 (2)
Info : Wires : 8 (9)
Info : Faces : 6 (7)
Info : Edges : 6 (9)
Info : Vertices : 4 (6)
Info : Totol surface area : 1407.43 (1759.29)
Info : -----------------------------------
Info : Done reading '2cil.step'
Info : Done reading '2cil.geo'
Info : Meshing 1D...
Info : Meshing curve 1 (Line)
Info : Meshing curve 2 (Circle)
Info : Meshing curve 3 (Line)
Info : Meshing curve 4 (Circle)
Info : Meshing curve 5 (Circle)
Info : Meshing curve 6 (Circle)
Info : Done meshing 1D (0.004 s)
Info : Meshing 2D...
Info : Meshing surface 1 (Cylinder, MeshAdapt)
Program received signal SIGSEGV, Segmentation fault.
0x00007ffff6bcf76c in BDS_Point::del (this=0xa8e060, e=0xb201a0) at
/home/gtheler/codigos/3ros/build/gmsh/Mesh/BDS.h:155
155 if(*it == e){
(gdb) where
#0 0x00007ffff6bcf76c in BDS_Point::del (this=0xa8e060, e=0xb201a0) at
/home/gtheler/codigos/3ros/build/gmsh/Mesh/BDS.h:155
#1 0x00007ffff6bcb89f in BDS_Mesh::del_edge (this=0xa8c470, e=0xb201a0)
at /home/gtheler/codigos/3ros/build/gmsh/Mesh/BDS.cpp:468
#2 0x00007ffff6bcc78a in BDS_Mesh::split_edge (this=0xa8c470, e=0xb201a0,
mid=0xabc6b0)
at /home/gtheler/codigos/3ros/build/gmsh/Mesh/BDS.cpp:688
#3 0x00007ffff6af383c in splitEdgePass (gf=0xa8b6b0, m=...,
MAXE_=1.3999999999999999, nb_split=@0x7fffffffcdcc: 0)
at /home/gtheler/codigos/3ros/build/gmsh/Mesh/meshGFaceBDS.cpp:536
#4 0x00007ffff6af458e in refineMeshBDS (gf=0xa8b6b0, m=..., NIT=10,
computeNodalSizeField=true, recoverMapInv=0x7fffffffcfa0)
at /home/gtheler/codigos/3ros/build/gmsh/Mesh/meshGFaceBDS.cpp:698
#5 0x00007ffff6ac27cc in meshGenerator (gf=0xa8b6b0, RECUR_ITER=0,
repairSelfIntersecting1dMesh=true, onlyInitialMesh=false,
debug=false, replacement_edges=0x0) at
/home/gtheler/codigos/3ros/build/gmsh/Mesh/meshGFace.cpp:1591
#6 0x00007ffff6ac7eeb in meshGFace::operator() (this=0x7fffffffdbf0,
gf=0xa8b6b0, print=true)
at /home/gtheler/codigos/3ros/build/gmsh/Mesh/meshGFace.cpp:2562
#7 0x00007ffff6aad9e6 in Mesh2D (m=0x7ab100) at
/home/gtheler/codigos/3ros/build/gmsh/Mesh/Generator.cpp:349
#8 0x00007ffff6aaef47 in GenerateMesh (m=0x7ab100, ask=3) at
/home/gtheler/codigos/3ros/build/gmsh/Mesh/Generator.cpp:622
#9 0x00007ffff68fa132 in GModel::mesh (this=0x7ab100, dimension=3) at
/home/gtheler/codigos/3ros/build/gmsh/Geo/GModel.cpp:571
#10 0x00007ffff66b458c in GmshBatch () at
/home/gtheler/codigos/3ros/build/gmsh/Common/Gmsh.cpp:300
#11 0x000000000040159d in main (argc=3, argv=0x7fffffffe008) at
/home/gtheler/codigos/3ros/build/gmsh/Fltk/Main.cpp:38
(gdb)
--
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Geometry.OCCConnectFaces = 1;
Merge "2cil.step";
ISO-10303-21;
HEADER;
FILE_DESCRIPTION(('FreeCAD Model'),'2;1');
FILE_NAME('/home/gtheler/FreeCAD_files/2cil.step','2015-02-24T13:51:12',
('Author'),(''),'Open CASCADE STEP processor 6.7','FreeCAD','Unknown'
);
FILE_SCHEMA(('AUTOMOTIVE_DESIGN_CC2 { 1 2 10303 214 -1 1 5 4 }'));
ENDSEC;
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#286 = EDGE_CURVE('',#260,#225,#287,.T.);
#287 = SEAM_CURVE('',#288,(#292,#299),.PCURVE_S1.);
#288 = LINE('',#289,#290);
#289 = CARTESIAN_POINT('',(4.,-9.797174393179E-16,0.));
#290 = VECTOR('',#291,1.);
#291 = DIRECTION('',(0.,0.,1.));
#292 = PCURVE('',#241,#293);
#293 = DEFINITIONAL_REPRESENTATION('',(#294),#298);
#294 = LINE('',#295,#296);
#295 = CARTESIAN_POINT('',(6.28318530718,-0.));
#296 = VECTOR('',#297,1.);
#297 = DIRECTION('',(0.,1.));
#298 = ( GEOMETRIC_REPRESENTATION_CONTEXT(2)
PARAMETRIC_REPRESENTATION_CONTEXT() REPRESENTATION_CONTEXT('2D SPACE',''
) );
#299 = PCURVE('',#241,#300);
#300 = DEFINITIONAL_REPRESENTATION('',(#301),#305);
#301 = LINE('',#302,#303);
#302 = CARTESIAN_POINT('',(0.,-0.));
#303 = VECTOR('',#304,1.);
#304 = DIRECTION('',(0.,1.));
#305 = ( GEOMETRIC_REPRESENTATION_CONTEXT(2)
PARAMETRIC_REPRESENTATION_CONTEXT() REPRESENTATION_CONTEXT('2D SPACE',''
) );
#306 = ORIENTED_EDGE('',*,*,#224,.F.);
#307 = ORIENTED_EDGE('',*,*,#286,.F.);
#308 = ORIENTED_EDGE('',*,*,#259,.T.);
#309 = ( GEOMETRIC_REPRESENTATION_CONTEXT(3)
GLOBAL_UNCERTAINTY_ASSIGNED_CONTEXT((#313)) GLOBAL_UNIT_ASSIGNED_CONTEXT
((#310,#311,#312)) REPRESENTATION_CONTEXT('Context #1',
'3D Context with UNIT and UNCERTAINTY') );
#310 = ( LENGTH_UNIT() NAMED_UNIT(*) SI_UNIT(.MILLI.,.METRE.) );
#311 = ( NAMED_UNIT(*) PLANE_ANGLE_UNIT() SI_UNIT($,.RADIAN.) );
#312 = ( NAMED_UNIT(*) SI_UNIT($,.STERADIAN.) SOLID_ANGLE_UNIT() );
#313 = UNCERTAINTY_MEASURE_WITH_UNIT(LENGTH_MEASURE(1.E-07),#310,
'distance_accuracy_value','confusion accuracy');
#314 = PRODUCT_TYPE('part',$,(#123));
#315 = MECHANICAL_DESIGN_GEOMETRIC_PRESENTATION_REPRESENTATION('',(#316)
,#113);
#316 = STYLED_ITEM('color',(#317),#15);
#317 = PRESENTATION_STYLE_ASSIGNMENT((#318,#324));
#318 = SURFACE_STYLE_USAGE(.BOTH.,#319);
#319 = SURFACE_SIDE_STYLE('',(#320));
#320 = SURFACE_STYLE_FILL_AREA(#321);
#321 = FILL_AREA_STYLE('',(#322));
#322 = FILL_AREA_STYLE_COLOUR('',#323);
#323 = COLOUR_RGB('',0.800000011921,0.800000011921,0.800000011921);
#324 = CURVE_STYLE('',#325,POSITIVE_LENGTH_MEASURE(0.1),#323);
#325 = DRAUGHTING_PRE_DEFINED_CURVE_FONT('continuous');
#326 = MECHANICAL_DESIGN_GEOMETRIC_PRESENTATION_REPRESENTATION('',(#327)
,#309);
#327 = STYLED_ITEM('color',(#328),#127);
#328 = PRESENTATION_STYLE_ASSIGNMENT((#329,#334));
#329 = SURFACE_STYLE_USAGE(.BOTH.,#330);
#330 = SURFACE_SIDE_STYLE('',(#331));
#331 = SURFACE_STYLE_FILL_AREA(#332);
#332 = FILL_AREA_STYLE('',(#333));
#333 = FILL_AREA_STYLE_COLOUR('',#323);
#334 = CURVE_STYLE('',#335,POSITIVE_LENGTH_MEASURE(0.1),#323);
#335 = DRAUGHTING_PRE_DEFINED_CURVE_FONT('continuous');
ENDSEC;
END-ISO-10303-21;
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