python vtk read show 读取 显示

这里总结一下 python vtk read

part1: read .nii

Reader = vtk.vtkNIFTIImageReader()
    Reader.SetFileName('./data/seg.nii')
    Reader.Update()

part read stl

reader = vtk.vtkSTLReader()
        reader.SetFileName("D:/stress.stl")
 
        reader.Update()

part read vtk

reader = vtk.vtkPolyDataReader()
    reader.SetFileName('E:/AF_right.vtk')  # SetFileName设置要读取的vtk文件
    reader.ReadAllScalarsOn()
    reader.ReadAllVectorsOn()
    reader.ReadAllTensorsOn()
    reader.Update()

show :

import sys
import vtk

def main():
    arender = vtk.vtkRenderer()
   # arender.SetViewport(0, 0.0, 0.5, 1.0)
    renWin = vtk.vtkRenderWindow()
    renWin.AddRenderer(arender)
    iren = vtk.vtkRenderWindowInteractor()
    iren.SetRenderWindow(renWin)

    reader = vtk.vtkPolyDataReader()
    reader.SetFileName('E:/AF_right.vtk')  # SetFileName设置要读取的vtk文件
    reader.ReadAllScalarsOn()
    reader.ReadAllVectorsOn()
    reader.ReadAllTensorsOn()
    reader.Update()
 
    output = reader.GetOutput()

    scalar_range = output.GetScalarRange()
    output_port = reader.GetOutputPort()

    skinMapper = vtk.vtkPolyDataMapper()
    skinMapper.SetInputConnection(reader.GetOutputPort())
    skinMapper.ScalarVisibilityOff()
    skinMapper.Update()

    skin = vtk.vtkActor()

    skin.SetMapper(skinMapper)

    arender.AddActor(skin)
 
    arender.ResetCamera()
    arender.SetBackground(.2, .3, .4)
    arender.ResetCameraClippingRange()

    renWin.SetSize(800, 600)

    renWin.Render()
    iren.Initialize()
    iren.Start()


main()