读取.slc文件提示错误

#!/usr/bin/env python

# noinspection PyUnresolvedReferences
import vtkmodules.vtkInteractionStyle
# noinspection PyUnresolvedReferences
import vtkmodules.vtkRenderingOpenGL2
from vtkmodules.vtkCommonColor import vtkNamedColors
from vtkmodules.vtkFiltersCore import vtkContourFilter
from vtkmodules.vtkFiltersModeling import vtkOutlineFilter
from vtkmodules.vtkIOImage import vtkSLCReader
from vtkmodules.vtkRenderingCore import (
    vtkActor,
    vtkPolyDataMapper,
    vtkRenderWindow,
    vtkRenderWindowInteractor,
    vtkRenderer
)


def main():
    InputFilename, iso_value = get_program_parameters()

    colors = vtkNamedColors()

    # vtkSLCReader to read.
    reader = vtkSLCReader()
    reader.SetFileName(InputFilename)
    reader.Update()
    
    # Create a mapper.
    mapper = vtkPolyDataMapper()
    mapper.SetInputConnection(reader.GetOutputPort())
    print('%%%%%%%')
    # Implementing Marching Cubes Algorithm to create the surface using vtkContourFilter object.
    contourFilter = vtkContourFilter()
    contourFilter.SetInputConnection(reader.GetOutputPort())
    # Change the range(2nd and 3rd Paramater) based on your
    # requirement. recomended value for 1st parameter is above 1
    # contourFilter.GenerateValues(5, 80.0, 100.0)
    contourFilter.SetValue(0, iso_value)

    outliner = vtkOutlineFilter()
    outliner.SetInputConnection(reader.GetOutputPort())
    outliner.Update()

    mapper = vtkPolyDataMapper()
    mapper.SetInputConnection(contourFilter.GetOutputPort())
    mapper.SetScalarVisibility(0)

    actor = vtkActor()
    actor.SetMapper(mapper)
    actor.GetProperty().SetDiffuse(0.8)
    actor.GetProperty().SetDiffuseColor(colors.GetColor3d('Ivory'))
    actor.GetProperty().SetSpecular(0.8)
    actor.GetProperty().SetSpecularPower(120.0)

    # Create a rendering window and renderer.
    renderer = vtkRenderer()
    renderWindow = vtkRenderWindow()
    renderWindow.AddRenderer(renderer)
    renderWindow.SetSize(500, 500)

    # Create a renderwindowinteractor.
    renderWindowInteractor = vtkRenderWindowInteractor()
    renderWindowInteractor.SetRenderWindow(renderWindow)

    # Assign actor to the renderer.
    renderer.AddActor(actor)
    renderer.SetBackground(colors.GetColor3d('SlateGray'))

    # Pick a good view
    cam1 = renderer.GetActiveCamera()
    cam1.SetFocalPoint(0.0, 0.0, 0.0)
    cam1.SetPosition(0.0, -1.0, 0.0)
    cam1.SetViewUp(0.0, 0.0, -1.0)
    cam1.Azimuth(-90.0)
    renderer.ResetCamera()
    renderer.ResetCameraClippingRange()

    renderWindow.SetWindowName('ReadSLC')
    renderWindow.SetSize(640, 512)
    renderWindow.Render()

    # Enable user interface interactor.
    renderWindowInteractor.Initialize()
    renderWindow.Render()
    renderWindowInteractor.Start()


def get_program_parameters():
    import argparse
    description = 'Read a .slc file.'
    epilogue = ''''''
    parser = argparse.ArgumentParser(description=description, epilog=epilogue,
                                     formatter_class=argparse.RawDescriptionHelpFormatter)
    parser.add_argument('filename', help='vw_knee.slc.')
    parser.add_argument('iso_value', nargs='?', type=float, default=72.0, help='Defaullt 72.')
    args = parser.parse_args()
    return args.filename, args.iso_value


if __name__ == '__main__':
    main()

提示错误,使用的.slc文件是附件box.slc文件。

ERROR: In D:\bld\vtk_1636492020745\work\IO\Image\vtkSLCReader.cxx, line 105
vtkSLCReader (000001DEBD781B90): Error reading file: box.slcFailed to read magic number

ERROR: In D:\bld\vtk_1636492020745\work\IO\Image\vtkSLCReader.cxx, line 235
vtkSLCReader (000001DEBD781B90): Error reading file: box.slcFailed to read magic number

Hi @zhenhuashao ,

This is an english speaking forum, please share your .slc file

Best,