[Gmsh] Crash in Delaunay Quad 2d mesh using the Gmsh-api

[Christophe Geuzaine]

Can you download the binary SDK from the website and test my python script with that?

Christophe

> On 14 Jun 2018, at 16:47, Konstantinos Iatridis <k.iatridis at itech-soft.com> wrote:
> 
> Thank you for the fast response!
> I downloaded the current gmsh version from github.
> I build it again as dll.
> Configuring gmsh I changed the following switches to reduce dependencies:
> .	ENABLE_ACIS=0
> .	ENABLE_BLAS_LAPACK=0
> .	ENABLE_FLTK=0
> .	ENABLE_OCC=0
> .	ENABLE_OCC_CAF=0
> .	ENABLE_OPENMP=0
> .	ENABLE_OSMESA=0
> .	ENABLE_OPTHOME=0
> 
> My compiler is visual studio 2015.
> I modified the code of my app following your Python example. In your example
> you set the Algorithm =5 but as far as I can see the desired algorithm for
> me is =8. I tested both:
> 
> std::string geofile; //..
> std::string mshfile; //..
> gmsh::initialize();
> gmsh::option::setNumber("General.Terminal", 1);
> gmsh::option::setNumber("Mesh.Algorithm", 5); //5: runs ok, 8: crash!
> gmsh::option::setNumber("Mesh.RecombineAll", 1);
> gmsh::option::setNumber("Mesh.RecombinationAlgorithm", 1);
> gmsh::open(geofile.c_str());
> gmsh::model::geo::synchronize();
> gmsh::model::mesh::generate(2);
> gmsh::write(mshfile.c_str());
> gmsh::finalize();
> 
> As in the previous version
> -Algorithm 5 runs ok
> -Algorithm 8 crashes and as I can see from my debugger still in
> backgroundMesh::updateSizes()
> 
> Could the build options or the compiler version affect the Delaunay Quad
> Algorithm?
> Can you verify that the same code runs in your configuration with Algorithm
> =8?
> Any suggestion on what could cause the crash?
> 
> Thank you in advance
> 
> Konstantinos Iatridis
> -itech
> 
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— 
Prof. Christophe Geuzaine
University of Liege, Electrical Engineering and Computer Science 
http://www.montefiore.ulg.ac.be/~geuzaine

Free software: http://gmsh.info | http://getdp.info | http://onelab.info

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