def subdvide(self):
"""Increase the number of tets of a TetMesh.
Subdivide one tetrahedron into twelve for every tetra."""
sd = vtk.vtkSubdivideTetra()
sd.SetInputData(self._data)
sd.Update()
return self._update(sd.GetOutput())
def __init__(self, module_manager):
SimpleVTKClassModuleBase.__init__(
self, module_manager,
vtk.vtkSubdivideTetra(), 'Processing.',
('vtkUnstructuredGrid',), ('vtkUnstructuredGrid',),
replaceDoc=True,
inputFunctions=None, outputFunctions=None)
def __init__(self, module_manager):
SimpleVTKClassModuleBase.__init__(self,
module_manager,
vtk.vtkSubdivideTetra(),
'Processing.',
('vtkUnstructuredGrid', ),
('vtkUnstructuredGrid', ),
replaceDoc=True,
inputFunctions=None,
outputFunctions=None)
tetraPoints = vtk.vtkPoints() tetraPoints.SetNumberOfPoints(4) tetraPoints.InsertPoint(0,0,0,0) tetraPoints.InsertPoint(1,1,0,0) tetraPoints.InsertPoint(2,.5,1,0) tetraPoints.InsertPoint(3,.5,.5,1) aTetra = vtk.vtkTetra() aTetra.GetPointIds().SetId(0,0) aTetra.GetPointIds().SetId(1,1) aTetra.GetPointIds().SetId(2,2) aTetra.GetPointIds().SetId(3,3) aTetraGrid = vtk.vtkUnstructuredGrid() aTetraGrid.Allocate(1,1) aTetraGrid.InsertNextCell(aTetra.GetCellType(),aTetra.GetPointIds()) aTetraGrid.SetPoints(tetraPoints) sub = vtk.vtkSubdivideTetra() sub.SetInputData(aTetraGrid) shrinker = vtk.vtkShrinkFilter() shrinker.SetInputConnection(sub.GetOutputPort()) mapper = vtk.vtkDataSetMapper() mapper.SetInputConnection(shrinker.GetOutputPort()) actor = vtk.vtkActor() actor.SetMapper(mapper) actor.GetProperty().SetColor(0.7400,0.9900,0.7900) # define graphics stuff ren1 = vtk.vtkRenderer() renWin = vtk.vtkRenderWindow() renWin.AddRenderer(ren1) iren = vtk.vtkRenderWindowInteractor() iren.SetRenderWindow(renWin) ren1.AddActor(actor)
tetraPoints = vtk.vtkPoints() tetraPoints.SetNumberOfPoints(4) tetraPoints.InsertPoint(0, 0, 0, 0) tetraPoints.InsertPoint(1, 1, 0, 0) tetraPoints.InsertPoint(2, .5, 1, 0) tetraPoints.InsertPoint(3, .5, .5, 1) aTetra = vtk.vtkTetra() aTetra.GetPointIds().SetId(0, 0) aTetra.GetPointIds().SetId(1, 1) aTetra.GetPointIds().SetId(2, 2) aTetra.GetPointIds().SetId(3, 3) aTetraGrid = vtk.vtkUnstructuredGrid() aTetraGrid.Allocate(1, 1) aTetraGrid.InsertNextCell(aTetra.GetCellType(), aTetra.GetPointIds()) aTetraGrid.SetPoints(tetraPoints) sub = vtk.vtkSubdivideTetra() sub.SetInputData(aTetraGrid) shrinker = vtk.vtkShrinkFilter() shrinker.SetInputConnection(sub.GetOutputPort()) mapper = vtk.vtkDataSetMapper() mapper.SetInputConnection(shrinker.GetOutputPort()) actor = vtk.vtkActor() actor.SetMapper(mapper) actor.GetProperty().SetColor(0.7400, 0.9900, 0.7900) # define graphics stuff ren1 = vtk.vtkRenderer() renWin = vtk.vtkRenderWindow() renWin.AddRenderer(ren1) iren = vtk.vtkRenderWindowInteractor() iren.SetRenderWindow(renWin) ren1.AddActor(actor)
