Python vtk.vtkPNGWriter() Examples

The following are 4 code examples of vtk.vtkPNGWriter(). You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may also want to check out all available functions/classes of the module vtk , or try the search function .
Example #1
Source File: graphics.py    From robopy with MIT License 6 votes vote down vote up 
def screenshot(self, filename=None):
        w2if = vtk.vtkWindowToImageFilter()
        w2if.SetInput(self.ren_win)
        w2if.Update()
        if filename is None:
            filename = 'screenshot'
        filename = filename + '%d.png' % self.screenshot_count
        writer = vtk.vtkPNGWriter()
        writer.SetFileName(filename)
        self.screenshot_count += 1
        writer.SetInputData(w2if.GetOutput())
        writer.Write()
Example #2
Source File: test_code_vasp_01.py    From PyChemia with MIT License 5 votes vote down vote up 
def WritePMG(ren, fn, magnification=1):
    """
    Save the image as a PNG

    :param ren: The renderer.
    :param fn: The file name.
    :param magnification: The magnification, usually 1.
    """
    renLgeIm = vtk.vtkRenderLargeImage()
    imgWriter = vtk.vtkPNGWriter()
    renLgeIm.SetInput(ren)
    renLgeIm.SetMagnification(magnification)
    imgWriter.SetInputConnection(renLgeIm.GetOutputPort())
    imgWriter.SetFileName(fn)
    imgWriter.Write()
Example #3
Source File: utility.py    From ILCC with BSD 2-Clause "Simplified" License 4 votes vote down vote up 
def vis_with_renderer(renderer):
    # Renderer

    # renderer.SetBackground(.2, .3, .4)
    renderer.SetBackground(1, 1, 1)
    renderer.ResetCamera()

    transform = vtk.vtkTransform()
    transform.Translate(1.0, 0.0, 0.0)
    axes = vtk.vtkAxesActor()
    renderer.AddActor(axes)

    # Render Window
    renderWindow = vtk.vtkRenderWindow()
    renderWindow.AddRenderer(renderer)

    # Interactor
    renderWindowInteractor = vtk.vtkRenderWindowInteractor()
    renderWindowInteractor.SetRenderWindow(renderWindow)

    def get_camera_info(obj, ev):
        if renderWindowInteractor.GetKeyCode() == "s":
            w2if = vtk.vtkWindowToImageFilter()
            w2if.SetInput(renderWindow)
            w2if.Update()

            writer = vtk.vtkPNGWriter()
            writer.SetFileName("screenshot.png")
            if vtk.VTK_MAJOR_VERSION == 5:
                writer.SetInput(w2if.GetOutput())
            else:
                writer.SetInputData(w2if.GetOutput())
            writer.Write()
            print "screenshot saved"

    style = vtk.vtkInteractorStyleSwitch()
    renderWindowInteractor.SetInteractorStyle(style)
    # style.SetCurrentStyleToTrackballActor()
    style.SetCurrentStyleToTrackballCamera()

    # Begin Interaction
    renderWindowInteractor.AddObserver(vtk.vtkCommand.KeyPressEvent, get_camera_info, 1)
    renderWindow.Render()
    renderWindowInteractor.Start()
Example #4
Source File: volumerendering.py    From Medical-Image-Analysis-IPython-Tutorials with Apache License 2.0 4 votes vote down vote up 
def vtk_basic( actors, embed=False, magnification=1.0 ):
    """
    Create a window, renderer, interactor, add the actors and start the thing
    
    Parameters
    ----------
    actors :  list of vtkActors
    
    Returns
    -------
    nothing
    """     
    
    # create a rendering window and renderer
    ren = vtk.vtkRenderer()
    renWin = vtk.vtkRenderWindow()
    renWin.AddRenderer(ren)
    renWin.SetSize(600,600)
    # ren.SetBackground( 1, 1, 1)
 
    # create a renderwindowinteractor
    iren = vtk.vtkRenderWindowInteractor()
    iren.SetRenderWindow(renWin)

    for a in actors:

        move( a, np.dot(Ry(-180),Rx(-180)) )
        
        # assign actor to the renderer
        ren.AddActor(a )
    
    # render
    renWin.Render()

    if embed:
        renWin.SetSize(300,300)
        grabber = vtk.vtkWindowToImageFilter()
        grabber.SetInput( renWin )
        grabber.SetMagnification( magnification )
        grabber.Update()
        
        writer = vtk.vtkPNGWriter()
        writer.SetInput( grabber.GetOutput() )
        writer.SetFileName( "screenshot.png" )
        writer.Write()
        return display.Image("screenshot.png")
    else:   
        # enable user interface interactor
        iren.Initialize()
        iren.Start()