Hi, "Coherence" only applies to native .geo models. Geometry.OCCSewFaces seems to repair your open cascade model:
===== Mesh.CharacteristicLengthFactor=0.25; Mesh.Algorithm=1; // 2D mesh algorithm (1) MeshAdapt (default)(5) Delaunay (6) Frontal Mesh.ElementOrder=1; // 1=linear elements, N (<6) = elements of higher order Geometry.OCCSewFaces = 1; Merge "Volume1.STEP"; ===== On 16 Feb 2012, at 23:54, Sangpil Yoon wrote: > Dear Gmsh experts; > > > previous post was a kind of general question.... > > here i attached a .STEP and .geo file > > i did the following in command line > > > > gmsh test.geo -2 -format msh -o test.msh > > > the geometry is pretty simple; a cylinder shape on one side of a box. > > you will see duplicate nodes are there.....because there ARE duplicate lines > and points. > > did I do something wrong in using .geo file? > > Or, do i need to do something before exporting .STEP file? > > > any comments are welcome. > > > NOTE: If i do the same thing in the following manner, no duplicate nodes are > found. > > 1. read .STEP file > 2. save it as .geo file > 3. add one line 'Coherence' at the end of .geo file > 4. do mesh > > i strongly believe I am not properly using .geo file or command..... > > <test.zip>_______________________________________________ > gmsh mailing list > [email protected] > http://www.geuz.org/mailman/listinfo/gmsh -- Prof. Christophe Geuzaine University of Liege, Electrical Engineering and Computer Science http://www.montefiore.ulg.ac.be/~geuzaine _______________________________________________ gmsh mailing list [email protected] http://www.geuz.org/mailman/listinfo/gmsh
