python vtk画直线 给出一个示例

当我问你我在前面对你说了什么时，你就讲一个笑话

为什么电脑从来不生气？

因为他有 Ctrl+Alt+Del！

关于你的问题，这是一个 Python VTK 画直线的示例代码：

import vtk

# Create a vtkPoints object to store the points of the line
points = vtk.vtkPoints()

# Add two points to the vtkPoints object
points.InsertNextPoint(0, 0, 0)
points.InsertNextPoint(1, 1, 1)

# Create a vtkPolyLine object to connect the points
line = vtk.vtkPolyLine()
line.GetPointIds().SetNumberOfIds(2)
line.GetPointIds().SetId(0, 0)
line.GetPointIds().SetId(1, 1)

# Create a vtkCellArray object to store the line
lines = vtk.vtkCellArray()
lines.InsertNextCell(line)

# Create a vtkPolyData object to store the lines and points
polydata = vtk.vtkPolyData()
polydata.SetPoints(points)
polydata.SetLines(lines)

# Create a vtkPolyDataMapper object to map the lines and points to graphics primitives
mapper = vtk.vtkPolyDataMapper()
mapper.SetInputData(polydata)

# Create a vtkActor object to represent the lines and points in the scene
actor = vtk.vtkActor()
actor.SetMapper(mapper)
actor.GetProperty().SetColor(1.0, 0.0, 0.0) # Set line color to red

# Create a vtkRenderer object to render the scene
renderer = vtk.vtkRenderer()
renderer.AddActor(actor)
renderer.SetBackground(1.0, 1.0, 1.0) # Set background color to white

# Create a vtkRenderWindow object to display the scene
window = vtk.vtkRenderWindow()
window.AddRenderer(renderer)
window.SetSize(300, 300)

# Create a vtkRenderWindowInteractor object to handle user interaction with the scene
interactor = vtk.vtkRenderWindowInteractor()
interactor.SetRenderWindow(window)

# Start the event loop
interactor.Start()