static public void Show(RenderWindowControl aRenderControl)
{
// get a reference to the renderwindow of our renderWindowControl1
var aRenderWindow = aRenderControl.RenderWindow;
// get a reference to the renderer
var aRenderer = aRenderWindow.GetRenderers().GetFirstRenderer();
aRenderer.Clear();
aRenderer.RemoveAllViewProps();
// set background color
aRenderer.SetBackground(0.2, 0.3, 0.4);
var aMesher = new CMshTetrahedronMesherDouble();
Mesh3D.GenerateMesh(aMesher, aRenderer);
var anUnstructuredGrid = vtkUnstructuredGrid.New();
Mesh3D.DrawMesh(aMesher, anUnstructuredGrid, aRenderer);
aRenderer.ResetCamera();
aRenderControl.Refresh();
}
static public void DrawMesh(CMshTetrahedronMesherDouble aMesher, vtkUnstructuredGrid anUnstructuredGrid, vtkRenderer aRenderer)
{
vtkPoints sPoints = vtkPoints.New();
for (int i = 0; i < aMesher.mesh().nbNodes(); ++i)
{
int aNodeId = aMesher.mesh().nodeId(i);
var aNode = aMesher.mesh().node(aNodeId);
sPoints.InsertNextPoint(aNode.x(), aNode.y(), aNode.z());
}
anUnstructuredGrid.SetPoints(sPoints);
for (int i = 0; i < aMesher.mesh().nbElements(); ++i)
{
int anElementId = aMesher.mesh().elementId(i);
var anElement = aMesher.mesh().element(anElementId);
if (anElement.elementType() == EElementType.ET_TETRAHEDRON)
{
var aTetrahedron = vtkTetra.New();
aTetrahedron.GetPointIds().SetId(0, aMesher.mesh().nodeIndex(anElement.nodeId(0)));
aTetrahedron.GetPointIds().SetId(1, aMesher.mesh().nodeIndex(anElement.nodeId(1)));
aTetrahedron.GetPointIds().SetId(2, aMesher.mesh().nodeIndex(anElement.nodeId(2)));
aTetrahedron.GetPointIds().SetId(3, aMesher.mesh().nodeIndex(anElement.nodeId(3)));
anUnstructuredGrid.InsertNextCell(aTetrahedron.GetCellType(), aTetrahedron.GetPointIds());
}
}
// add actor to the renderer
var aMeshActor = vtkActor.New();
aRenderer.AddActor(aMeshActor);
var aMeshMapper = vtkDataSetMapper.New();
aMeshMapper.SetInput(anUnstructuredGrid);
aMeshActor.SetMapper(aMeshMapper);
aMeshActor.GetProperty().SetRepresentationToWireframe();
}
static public void GenerateMesh(CMshTetrahedronMesherDouble aMesher, vtkRenderer aRenderer)
{
var aVertex1 = new CGeoCoordinateDouble(0.0, 0.0, 0.0);
var aVertex2 = new CGeoCoordinateDouble(1.0, 0.0, 0.0);
var aVertex3 = new CGeoCoordinateDouble(1.0, 1.0, 0.0);
var aVertex4 = new CGeoCoordinateDouble(0.0, 1.0, 0.0);
var aVertex5 = new CGeoCoordinateDouble(0.0, 0.0, 1.0);
var aVertex6 = new CGeoCoordinateDouble(1.0, 0.0, 1.0);
var aVertex7 = new CGeoCoordinateDouble(1.0, 1.0, 1.0);
var aVertex8 = new CGeoCoordinateDouble(0.0, 1.0, 1.0);
var aHexahedron = new CGeoHexahedronDouble();
aHexahedron.addVertex(aVertex1);
aHexahedron.addVertex(aVertex2);
aHexahedron.addVertex(aVertex3);
aHexahedron.addVertex(aVertex4);
aHexahedron.addVertex(aVertex5);
aHexahedron.addVertex(aVertex6);
aHexahedron.addVertex(aVertex7);
aHexahedron.addVertex(aVertex8);
var aBasicMesher = new CMshBasicMesherDouble();
aBasicMesher.generate(aHexahedron, 10, 10, 10, true);
CMshMeshDouble aBoundaryMesh = aBasicMesher.mesh().extractBoundary(1E-6);
aBoundaryMesh.generateFaces(1E-4);
var aMeshSize = 0.1;
aMesher.generate(aBoundaryMesh, 99999, aMeshSize, 0.1, 1E-4);
aMesher.mesh().renumber();
}