代码语言：javascript复制
import vtk
# 定义渲染窗口、交互模式
aRender = vtk.vtkRenderer()
Renwin = vtk.vtkRenderWindow()
Renwin.AddRenderer(aRender)
iren = vtk.vtkRenderWindowInteractor()
iren.SetRenderWindow(Renwin)
# 定义个图片读取接口
#读取PNG图片就换成PNG_Reader = vtk.vtkPNGReader()
Jpg_Reader = vtk.vtkJPEGReader()
Jpg_Reader.SetNumberOfScalarComponents(1)
Jpg_Reader.SetFileDimensionality(3) # 说明图像是三维的
# 定义图像大小，本行表示图像大小为（512*512*240）
Jpg_Reader.SetDataExtent(0, 512, 0, 512, 0, 240)
# 设置图像的存放位置
Jpg_Reader.SetFilePrefix("E:/qct_data/outer/label/5/")
# 设置图像前缀名字
#表示图像前缀为数字（如：0.jpg）
Jpg_Reader.SetFilePattern("%s%d.jpg")
Jpg_Reader.Update()
Jpg_Reader.SetDataByteOrderToLittleEndian()
# 计算轮廓的方法
contour = vtk.vtkMarchingCubes()
contour.SetInputConnection(Jpg_Reader.GetOutputPort())
contour.ComputeNormalsOn()
contour.SetValue(0, 255)
mapper = vtk.vtkPolyDataMapper()
mapper.SetInputConnection(contour.GetOutputPort())
mapper.ScalarVisibilityOff()
actor = vtk.vtkActor()
actor.SetMapper(mapper)
renderer = vtk.vtkRenderer()
renderer.SetBackground([0.1, 0.1, 0.5])
renderer.AddActor(actor)
window = vtk.vtkRenderWindow()
window.SetSize(512, 512)
window.AddRenderer(renderer)
interactor = vtk.vtkRenderWindowInteractor()
interactor.SetRenderWindow(window)
# 开始显示
window.Render()
interactor.Initialize()
interactor.Start()
