notebook_tools.py 文件源码

def vtk_show(renderer, width=400, height=300):
    """
    Takes vtkRenderer instance and returns an IPython Image with the rendering.
    """
    renderWindow = vtk.vtkRenderWindow()
    renderWindow.SetOffScreenRendering(1)
    renderWindow.AddRenderer(renderer)
    renderWindow.SetSize(width, height)
    renderWindow.Render()

    windowToImageFilter = vtk.vtkWindowToImageFilter()
    windowToImageFilter.SetInput(renderWindow)
    windowToImageFilter.Update()

    writer = vtk.vtkPNGWriter()
    writer.SetWriteToMemory(1)
    writer.SetInputConnection(windowToImageFilter.GetOutputPort())
    writer.Write()
    data = str(buffer(writer.GetResult()))

    return Image(data)