Hi Aaron,I include the following lines at the beginning of my geo files. My CAD is created and exported from Rhino as a STP file, and has units of meters.Geometry.Tolerance = 0.001;
Geometry.OCCSewFaces = 1;If the tolerance is set too tight, the CAD kernel in gmsh treats the trim curves from neighboring surfaces as independent curves. You may also need to change the degree of the surfaces in the CAD model so it is consistent across all of the patches. I have had good success with bicubic NURBS. You may also need to ensure that neighboring patches have a similar number of control points along shared boundaries.Good luck,Bill,On Mon, Feb 8, 2016 at 6:30 AM, Aaron Kiefer <[email protected]> wrote:GMSH Group,
I’m still working with importing a .step surface file to create a 2D mesh for PC-Crash. The model has been separating when I try to analyze it. Inspection of the .geo file indicates redundant points, lines, and faces along common surfaces of the model. For reference, I copied one set of offending surfaces, lines, and points from the .geo file and typed them below. Is there a way to tell GMSH to remove the duplicate points, lines, and surfaces before or during meshing? From reading the help, the sew faces command sounds like what I need. I tried opening the .Step file using the below ‘sew faces’ box checked before saving as a .geo but that didn’t change anything…
Plane Surface(40) = {131,-133, -128, 132};
Plane Surface(48) = {161, -162, -163, 159};
Line(161) ={111, 113};
Line(133)={90,92};
Point(90) = {177.8000000000002, 15.87499999999997, 130.5089814427782, cl__1};
Point(113) = {177.8000000000004, 15.87499999999994, 130.5089814427785, cl__1};
Thanks in advance for any suggestions,
Aaron J. Kiefer MSME, PE
Accident Research Specialists, PLLC
1631 NW Maynard Road, Suite 101
Cary, NC 27513
Phone: (919) 467-8134
Fax: (919) 678-1261
Cell: (919) 810-8429
Email: [email protected]
Web: www.accident-research.com
Email Confidentiality Notice: The information contained in this transmission is confidential, proprietary, and/or privileged. The message is intended for the sole use of the individual or entity to whom it is addressed. If you are not the intended recipient, please be advised that any use, distribution, or copying of the message is strictly prohibited and may be subject to penalties, If you received this transmission in error, please contact the sender immediately and delete this material from any computer.
_______________________________________________
gmsh mailing list
[email protected]
http://onelab.info/mailman/listinfo/gmsh
_______________________________________________
gmsh mailing list
[email protected]
http://onelab.info/mailman/listinfo/gmsh
_______________________________________________ gmsh mailing list [email protected] http://onelab.info/mailman/listinfo/gmsh
