一：主要的知识点
1、说明
本文只是教程内容的一小段，因博客字数限制，故进行拆分。主教程链接：vtk教程——逐行解析官网所有Python示例-CSDN博客
2、知识点纪要
本段代码主要涉及的有①模型的旋转
二：代码及注释
import vtkmodules.vtkRenderingOpenGL2 import vtkmodules.vtkInteractionStyle from vtkmodules.vtkFiltersSources import vtkArrowSource from vtkmodules.vtkCommonColor import vtkNamedColors from vtkmodules.vtkCommonTransforms import vtkTransform from vtkmodules.vtkFiltersGeneral import vtkTransformPolyDataFilter from vtkmodules.vtkRenderingCore import vtkActor, vtkPolyDataMapper, vtkRenderWindow, vtkRenderWindowInteractor, \ vtkRenderer def main(): colors = vtkNamedColors() source = vtkArrowSource() # 原始方向(0,0,1) transform = vtkTransform() """ RotateWXYZ 可自行定义所绕的轴以及绕的角度 """ transform.RotateWXYZ(45, 0, 0, 1) transformFilter = vtkTransformPolyDataFilter() transformFilter.SetInputConnection(source.GetOutputPort()) transformFilter.SetTransform(transform) transformFilter.Update() # 旋转之后与X轴的夹角呈45° coneMapper1 = vtkPolyDataMapper() coneMapper1.SetInputConnection(source.GetOutputPort()) actor1 = vtkActor() actor1.SetMapper(coneMapper1) coneMapper2 = vtkPolyDataMapper() coneMapper2.SetInputConnection(transformFilter.GetOutputPort()) actor2 = vtkActor() actor2.SetMapper(coneMapper2) actor1.GetProperty().SetColor(colors.GetColor3d("LightCoral")) actor2.GetProperty().SetColor(colors.GetColor3d("PaleTurquoise")) render = vtkRenderer() render.AddActor(actor1) render.AddActor(actor2) render.SetBackground(colors.GetColor3d("SlateGray")) renWin = vtkRenderWindow() renWin.AddRenderer(render) renWin.SetSize(600, 480) renWin.SetWindowName("RotationAroundLine") iren = vtkRenderWindowInteractor() iren.SetRenderWindow(renWin) iren.Initialize() renWin.Render() iren.Start() if __name__ == '__main__': main()
