[Gmsh] Gmsh Python API

[Christophe Geuzaine]

It works fine over here: are you sure you are editing/examining the correct input/output files?

Add

  gmsh.fltk.run()

before gmsh.finalize() - it will launch the GUI so that you  can inspect the model interactively.

> On 20 May 2018, at 21:03, Alejandro Pina <ajpina at gmail.com> wrote:
> 
> Dear List,
> 
> I have been trying to use the Python API but my meshing does not respond to the mesh size that I set when adding the points. I reproduced my problem in the following example. So no matter what value I set on ‘lc’, the surface always happens to have only four triangles.
> 
> Hope you can help me figure it out and be able to control the meshing. I am also attaching the resulting 'MyTest.msh’ file. 
> 
> import gmsh
> 
> gmsh.initialize()
> gmsh.option.setNumber("General.Terminal", 1)
> gmsh.model.add("MyTest")
> lc = 1e-4
> gmsh.model.geo.addPoint(0, 0, 0, lc, 1)
> gmsh.model.geo.addPoint(.1, 0,  0, lc, 2)
> gmsh.model.geo.addPoint(.1, .3, 0, lc, 3)
> gmsh.model.geo.addPoint(0, .3, 0, lc, 4)
> gmsh.model.geo.addLine(1, 2, 1)
> gmsh.model.geo.addLine(3, 2, 2)
> gmsh.model.geo.addLine(3, 4, 3)
> gmsh.model.geo.addLine(4, 1, 4)
> gmsh.model.geo.addCurveLoop([4, 1, -2, 3], 1)
> gmsh.model.geo.addPlaneSurface([1], 1)
> gmsh.model.addPhysicalGroup(2, [1], 1)
> gmsh.model.setPhysicalName(2, 1, "My surface")
> gmsh.model.geo.synchronize()
> gmsh.model.mesh.generate(2)
> gmsh.write("MyTest.msh")
> gmsh.finalize()
> 
> Thanks,
> Alejandro
> 
> 
> <MyTest.msh>_______________________________________________
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