Thanks Guillaume ! I tried using the OpenCascade factory but I am getting an error, Possible due to the way I am importing stl files. Is there a specific way of importing them when I use OpenCascade ?
I am getting the following errors (GEO file is attached) : Info : Done reading 'Grain_Feature_1.stl' Error : Unknown OpenCASCADE face with tag 1 Error : Unknown OpenCASCADE surface loop with tag 1 Info : Done reading 'Grain_Feature_2.stl' Error : Unknown OpenCASCADE face with tag 2 Error : Unknown OpenCASCADE surface loop with tag 2 Error : Unknown OpenCASCADE entity of dimension 3 with tag 1 Could you or anyone help me fix this ?? On Fri, Mar 17, 2017 at 6:13 AM, DILASSER Guillaume < [email protected]> wrote: > Hello, > > > > Unfortunately, Gmsh is fairly limited when it comes to operations like > computing intersections > <http://gmsh.info/doc/texinfo/gmsh.html#and-what-Gmsh-is-not-so-good-at>. > However, you might be able to do something using the OpenCascade factory > included in the latest nigthly build. You can download it from gsmh.info > <http://gmsh.info/>, under the download paragraph, just under the > “Development version” mention. For example, you might want to have a look > at the Boolean.geo exemple here > <https://onelab.info/svn/gmsh/trunk/demos/boolean/> and there few > examples on how to import geometry from files (they will only work with the > nightly, ID & password = gmsh). Hoping that will be helpful, > > > > Faithfully Yours, > > > > Guillaume DILASSER > > Doctorant SACM / LEAS > > CEA - Centre de Saclay - Bât.123 - PC 319c > > 91191 Gif sur Yvette Cedex - France - > > > > [email protected] > > > > *De :* gmsh [mailto:[email protected]] *De la part > de* Prithivirajan V > *Envoyé :* vendredi 17 mars 2017 03:23 > *À :* [email protected] > *Objet :* [Gmsh] Creating a spherical hole inside a volume [Files > attached for testing] > > > > Hello all, > > My objective is to create the spherical hole inside a volume. I have 2 STL > files(see attached) as inputs. The complication is that the spherical hole > intersects the two other existing volumes and it is not contained entirely > in either one of the volumes. > > > I tried two approaches both of them were a failure (geo files are attached > for both) : > > *Approach 1 :* > > > > I used the merge command and then I created a spherical volume and > performed meshing. The issue is the sphere is getting meshed separately > without any relation to the other 2 volumes. > > > *Approach 2 :* > > First , I created an STL file of the spherical void separately. Now I used > merge command on all 3 STL files. Now i am getting intersections which I > am unable to resolve. > > *I have been stuck here for a while in this, your help would be greatly > appreciated*!!!! > > > > Thanks, > > Prithivi >
Approach_OpenCascade.geo
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