def saveToPNG(self, filename):
""" saveToPNG(filename: str) -> filename or vtkUnsignedCharArray
Save the current widget contents to an image file. If
str==None, then it returns the vtkUnsignedCharArray containing
the PNG image. Otherwise, the filename is returned.
"""
w2i = vtksnl.vtkWindowToImageFilter()
w2i.ReadFrontBufferOff()
w2i.SetInput(self.mRenWin)
# Render twice to get a clean image on the back buffer
self.mRenWin.Render()
self.mRenWin.Render()
w2i.Update()
writer = vtksnl.vtkPNGWriter()
writer.SetInputConnection(w2i.GetOutputPort())
if filename!=None:
writer.SetFileName(filename)
else:
writer.WriteToMemoryOn()
writer.Write()
if filename:
return filename
else:
return writer.GetResult()
def saveToPNG(self, filename):
""" saveToPNG(filename: str) -> filename or vtkUnsignedCharArray
Save the current widget contents to an image file. If
str==None, then it returns the vtkUnsignedCharArray containing
the PNG image. Otherwise, the filename is returned.
"""
w2i = vtksnl.vtkWindowToImageFilter()
w2i.ReadFrontBufferOff()
w2i.SetInput(self.mRenWin)
# Render twice to get a clean image on the back buffer
self.mRenWin.Render()
self.mRenWin.Render()
w2i.Update()
writer = vtksnl.vtkPNGWriter()
writer.SetInputConnection(w2i.GetOutputPort())
if filename != None:
writer.SetFileName(filename)
else:
writer.WriteToMemoryOn()
writer.Write()
if filename:
return filename
else:
return writer.GetResult()
def compute(self):
r = self.getInputFromPort("renderer").vtkInstance
window = vtksnl.vtkRenderWindow()
w = self.forceGetInputFromPort("width", 512)
h = self.forceGetInputFromPort("height", 512)
window.OffScreenRenderingOn()
window.SetSize(w, h)
# r.ResetCamera()
window.AddRenderer(r)
window.Start()
window.Render()
win2image = vtksnl.vtkWindowToImageFilter()
win2image.SetInput(window)
win2image.Update()
writer = vtksnl.vtkPNGWriter()
writer.SetInput(win2image.GetOutput())
output = self.interpreter.filePool.create_file(suffix='.png')
writer.SetFileName(output.name)
writer.Write()
window.Finalize()
self.setResult("image", output)
def compute(self):
r = self.get_input("renderer").vtkInstance
window = vtksnl.vtkRenderWindow()
w = self.force_get_input("width", 512)
h = self.force_get_input("height", 512)
window.OffScreenRenderingOn()
window.SetSize(w, h)
# r.ResetCamera()
window.AddRenderer(r)
window.Start()
window.Render()
win2image = vtksnl.vtkWindowToImageFilter()
win2image.SetInput(window)
win2image.Update()
writer = vtksnl.vtkPNGWriter()
writer.SetInput(win2image.GetOutput())
output = self.interpreter.filePool.create_file(suffix='.png')
writer.SetFileName(output.name)
writer.Write()
window.Finalize()
self.set_output("image", output)
