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Use external mesh generators (such as Gmsh) #217

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wdeconinck opened this issue May 28, 2012 · 0 comments

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wdeconinck commented May 28, 2012

Motiviation:

Define simple geometry in python (such as @barche already implemented)
Gmsh has built-in support for curved boundaries (splines)
Gmsh generates high-order triangular, tetrahedral, quadrilateral, hexahedral, and hybrid meshes.
Having the curved geometric information in coolfluid itself (splines) allows for nice mesh-refinement algorithms

The steps necessary for Gmsh:

FindGmsh.cmake file to locate gmsh mesher
Meta-mesh generation API
- Write gmsh geo file
- system call to gmsh with correct arguments

Using a generic Meta-mesh generation API we will also be able to also support CGAL, or the BlockMesher @barche implemented.

On the same note, we could perhaps also extract a geometry from an already imported mesh.

identify surfaces or volumes from regions, splines or NURBS from curved boundaries.
write Gmsh geo file

This will allow to remesh a mesh easily.

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