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#!/usr/bin/env python
## Program: VMTK
## Module: $RCSfile: vmtkmeshclipper.py,v $
## Language: Python
## Date: $Date: 2006/05/26 12:35:13 $
## Version: $Revision: 1.8 $
## Copyright (c) Luca Antiga, David Steinman. All rights reserved.
## See LICENCE file for details.
## This software is distributed WITHOUT ANY WARRANTY; without even
## the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
## PURPOSE. See the above copyright notices for more information.
import vtk
import sys
import vmtkrenderer
import pypes
vmtkmeshclipper = 'vmtkMeshClipper'
class vmtkMeshClipper(pypes.pypeScript):
def __init__(self):
pypes.pypeScript.__init__(self)
self.Mesh = None
self.ClippedMesh = None
self.Surface = None
self.vmtkRenderer = None
self.OwnRenderer = 0
self.Actor = None
self.BoxWidget = None
self.Planes = None
self.InsideOut = 0
self.Interactive = 1
self.ClipArrayName = None
self.ClipValue = 0.0
self.SetScriptName('vmtkmeshclipper')
self.SetScriptDoc('interactively clip a mesh with a box')
self.SetInputMembers([
['Mesh','i','vtkUnstructuredGrid',1,'','the input mesh','vmtkmeshreader'],
['InsideOut','insideout','bool',1,'','toggle switching output and clipped surfaces'],
['Interactive','interactive','bool',1,'','toggle clipping with a widget or with a pre-defined scalar field'],
['ClipArrayName','array','str',1,'','name of the array with which to clip in case of non-interactive clipping'],
['ClipValue','value','float',1,'','scalar value at which to perform clipping in case of non-interactive clipping'],
['vmtkRenderer','renderer','vmtkRenderer',1,'','external renderer']
])
self.SetOutputMembers([
['Mesh','o','vtkUnstructuredGrid',1,'','the output mesh','vmtkmeshwriter'],
['Surface','osurface','vtkPolyData',1,'','the output surface corresponding to the cut','vmtksurfacewriter'],
['ClippedMesh','oclipped','vtkUnstructuredGrid',1,'','the clipped mesh','vmtkmeshwriter']
])
def InteractCallback(self, obj):
pass
#if self.BoxWidget.GetEnabled() == 1:
# self.BoxWidget.SetEnabled(0)
#else:
# self.BoxWidget.SetEnabled(1)
def ClipCallback(self, obj):
if self.BoxWidget.GetEnabled() != 1:
return
self.BoxWidget.GetPlanes(self.Planes)
self.Clipper.Update()
self.Mesh.DeepCopy(self.Clipper.GetOutput())
self.ClippedMesh.DeepCopy(self.Clipper.GetClippedOutput())
self.Cutter.Update()
self.Surface.DeepCopy(self.Cutter.GetOutput())
mapper = vtk.vtkDataSetMapper()
mapper.SetInputData(self.Mesh)
mapper.ScalarVisibilityOff()
self.Actor.SetMapper(mapper)
self.BoxWidget.Off()
def Display(self):
self.BoxWidget.SetInputData(self.Mesh)
self.BoxWidget.PlaceWidget()
self.vmtkRenderer.Render()
def Execute(self):
if (self.Mesh == None):
self.PrintError('Error: no Mesh.')
self.Clipper = vtk.vtkClipDataSet()
self.Clipper.SetInputData(self.Mesh)
self.Clipper.GenerateClippedOutputOn()
self.Clipper.SetInsideOut(self.InsideOut)
if self.Interactive:
self.Planes = vtk.vtkPlanes()
self.Clipper.SetClipFunction(self.Planes)
self.Cutter = vtk.vtkCutter()
self.Cutter.SetInputData(self.Mesh)
self.Cutter.SetCutFunction(self.Planes)
self.ClippedMesh = vtk.vtkUnstructuredGrid()
self.Surface = vtk.vtkPolyData()
if not self.vmtkRenderer:
self.vmtkRenderer = vmtkrenderer.vmtkRenderer()
self.vmtkRenderer.Initialize()
self.OwnRenderer = 1
self.vmtkRenderer.RegisterScript(self)
mapper = vtk.vtkDataSetMapper()
mapper.SetInputData(self.Mesh)
mapper.ScalarVisibilityOff()
self.Actor = vtk.vtkActor()
self.Actor.SetMapper(mapper)
self.vmtkRenderer.Renderer.AddActor(self.Actor)
self.BoxWidget = vtk.vtkBoxWidget()
self.BoxWidget.SetInteractor(self.vmtkRenderer.RenderWindowInteractor)
self.BoxWidget.GetFaceProperty().SetColor(0.6,0.6,0.2)
self.BoxWidget.GetFaceProperty().SetOpacity(0.25)
self.vmtkRenderer.AddKeyBinding('i','Interact.', self.InteractCallback)
self.vmtkRenderer.AddKeyBinding('space','Clip.', self.ClipCallback)
self.Display()
if self.OwnRenderer:
self.vmtkRenderer.Deallocate()
else:
self.Mesh.GetPointData().SetActiveScalars(self.ClipArrayName)
self.Clipper.GenerateClipScalarsOff()
self.Clipper.SetValue(self.ClipValue)
self.Clipper.Update()
self.Cutter = vtk.vtkContourFilter()
self.Cutter.SetInputData(self.Mesh)
self.Cutter.SetValue(0,self.ClipValue)
self.Cutter.Update()
self.Mesh = self.Clipper.GetOutput()
self.Surface = self.Cutter.GetOutput()
self.ClippedMesh = self.Clipper.GetClippedOutput()
if __name__=='__main__':
main = pypes.pypeMain()
main.Arguments = sys.argv
main.Execute()
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