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MeshPart: add gmsh as another option to create mesh from shape

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wmayer
2020-02-28 21:15:17 +01:00
parent 549b424e1f
commit 1cb4625bfd
4 changed files with 210 additions and 69 deletions
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71
src/Mod/Mesh/Gui/RemeshGmsh.cpp
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@@ -32,6 +32,7 @@
#include "RemeshGmsh.h"
#include "ui_RemeshGmsh.h"
#include <Base/Console.h>
#include <Base/FileInfo.h>
#include <Base/Tools.h>
#include <App/Application.h>
@@ -115,39 +116,6 @@ void GmshWidget::changeEvent(QEvent *e)
QWidget::changeEvent(e);
}
#if 0 // this is for meshing a CAD shape see gmshtools.py write_geo
// geo file for meshing with Gmsh meshing software created by FreeCAD
// open brep geometry
Merge "/tmp/fcfem_f1enjjfa/Part__Feature_Geometry.brep";
// Characteristic Length
// no boundary layer settings for this mesh
// min, max Characteristic Length
Mesh.CharacteristicLengthMax = 1e+22;
Mesh.CharacteristicLengthMin = 0.0;
// optimize the mesh
Mesh.Optimize = 1;
Mesh.OptimizeNetgen = 0;
Mesh.HighOrderOptimize = 0; // for more HighOrderOptimize parameter check http://gmsh.info/doc/texinfo/gmsh.html
// mesh order
Mesh.ElementOrder = 2;
Mesh.SecondOrderLinear = 1; // Second order nodes are created by linear interpolation instead by curvilinear
// mesh algorithm, only a few algorithms are usable with 3D boundary layer generation
// 2D mesh algorithm (1=MeshAdapt, 2=Automatic, 5=Delaunay, 6=Frontal, 7=BAMG, 8=DelQuad)
Mesh.Algorithm = 2;
// 3D mesh algorithm (1=Delaunay, 2=New Delaunay, 4=Frontal, 5=Frontal Delaunay, 6=Frontal Hex, 7=MMG3D, 9=R-tree)
Mesh.Algorithm3D = 1;
// meshing
Geometry.Tolerance = 1e-06; // set geometrical tolerance (also used for merging nodes)
Mesh 2;
Coherence Mesh; // Remove duplicate vertices
#endif
bool GmshWidget::writeProject(QString& inpFile, QString& outFile)
{
Q_UNUSED(inpFile)
@@ -183,6 +151,11 @@ double GmshWidget::getMinSize() const
void GmshWidget::accept()
{
if (d->gmsh.state() == QProcess::Running) {
Base::Console().Warning("Cannot start gmsh because it's already running\n");
return;
}
QString inpFile;
QString outFile;
if (writeProject(inpFile, outFile)) {
@@ -311,38 +284,6 @@ RemeshGmsh::~RemeshGmsh()
{
}
#if 0 // this is for meshing a CAD shape see gmshtools.py write_geo
// geo file for meshing with Gmsh meshing software created by FreeCAD
// open brep geometry
Merge "/tmp/fcfem_f1enjjfa/Part__Feature_Geometry.brep";
// Characteristic Length
// no boundary layer settings for this mesh
// min, max Characteristic Length
Mesh.CharacteristicLengthMax = 1e+22;
Mesh.CharacteristicLengthMin = 0.0;
// optimize the mesh
Mesh.Optimize = 1;
Mesh.OptimizeNetgen = 0;
Mesh.HighOrderOptimize = 0; // for more HighOrderOptimize parameter check http://gmsh.info/doc/texinfo/gmsh.html
// mesh order
Mesh.ElementOrder = 2;
Mesh.SecondOrderLinear = 1; // Second order nodes are created by linear interpolation instead by curvilinear
// mesh algorithm, only a few algorithms are usable with 3D boundary layer generation
// 2D mesh algorithm (1=MeshAdapt, 2=Automatic, 5=Delaunay, 6=Frontal, 7=BAMG, 8=DelQuad)
Mesh.Algorithm = 2;
// 3D mesh algorithm (1=Delaunay, 2=New Delaunay, 4=Frontal, 5=Frontal Delaunay, 6=Frontal Hex, 7=MMG3D, 9=R-tree)
Mesh.Algorithm3D = 1;
// meshing
Geometry.Tolerance = 1e-06; // set geometrical tolerance (also used for merging nodes)
Mesh 2;
Coherence Mesh; // Remove duplicate vertices
#endif
bool RemeshGmsh::writeProject(QString& inpFile, QString& outFile)
{
if (!d->mesh.expired()) {