PolyLine 折线示例

import vtk

points = vtk.vtkPoints()
for p in [(0, 0, 0), (1, 0, 0), (1, 1, 0), (2, 1, 0)]:
    points.InsertNextPoint(*p)

polyline = vtk.vtkPolyLine()
polyline.GetPointIds().SetNumberOfIds(4)
for i in range(4):
    polyline.GetPointIds().SetId(i, i)

cells = vtk.vtkCellArray()
cells.InsertNextCell(polyline)