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wordpress要不要放网站地图,小学校园网站怎么建设,自己开一个网站怎么赚钱,安庆做网站企业一#xff1a;主要的知识点 1、说明 本文只是教程内容的一小段#xff0c;因博客字数限制#xff0c;故进行拆分。主教程链接#xff1a;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①vtkMaskPolyData抽取点或单元格 二#…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①vtkMaskPolyData抽取点或单元格二代码及注释import vtkmodules.vtkRenderingOpenGL2 import vtkmodules.vtkInteractionStyle from vtkmodules.vtkCommonColor import vtkNamedColors from vtkmodules.vtkIOLegacy import vtkPolyDataReader from vtkmodules.vtkFiltersCore import vtkDecimatePro, vtkPolyDataNormals, vtkMaskPolyData, vtkStripper from vtkmodules.vtkRenderingCore import ( vtkActor, vtkCamera, vtkPolyDataMapper, vtkRenderWindow, vtkRenderWindowInteractor, vtkRenderer ) def main(): colors vtkNamedColors() fileName Data/fran_cut.vtk renderer1 vtkRenderer() renderer1.SetViewport(0.0, 0.0, 0.5, 1.0) renderer2 vtkRenderer() renderer2.SetViewport(0.5, 0.0, 1.0, 1.0) renderWindow vtkRenderWindow() renderWindow.AddRenderer(renderer1) renderWindow.AddRenderer(renderer2) renderWindow.SetWindowName(StripFran) interactor vtkRenderWindowInteractor() interactor.SetRenderWindow(renderWindow) cyber vtkPolyDataReader() cyber.SetFileName(fileName) deci vtkDecimatePro() deci.SetInputConnection(cyber.GetOutputPort()) deci.SetTargetReduction(0.7) deci.PreserveTopologyOn() normals vtkPolyDataNormals() normals.SetInputConnection(deci.GetOutputPort()) vtkMaskPolyData 从一个 vtkPolyData多边形数据集 中,按一定规则抽取部分点或单元cell而不是使用全部数据 方法 | 功能 SetInputData(polydata) 指定输入数据 SetOnRatio(n) 抽样比例每 n 个点取一个 RandomModeOn() 开启随机抽样模式非顺序 SetMaximumNumberOfPoints(m) 限制输出最大点数 SetRandomSeed(seed) 控制随机数种子确保结果可重复 与vtkDecimatePro都是下采样但是最大的不同在于vtkMaskPolyData无法保证原先的拓扑结构 mask vtkMaskPolyData() mask.SetInputConnection(deci.GetOutputPort()) mask.SetOnRatio(2) cyberMapper vtkPolyDataMapper() cyberMapper.SetInputConnection(mask.GetOutputPort()) cyberActor vtkActor() cyberActor.SetMapper(cyberMapper) cyberActor.GetProperty().SetColor(colors.GetColor3d(Flesh)) stripper vtkStripper() stripper.SetInputConnection(cyber.GetOutputPort()) stripperMask vtkMaskPolyData() stripperMask.SetInputConnection(stripper.GetOutputPort()) stripperMask.SetOnRatio(2) stripperMapper vtkPolyDataMapper() stripperMapper.SetInputConnection(stripperMask.GetOutputPort()) stripperActor vtkActor() stripperActor.SetMapper(stripperMapper) stripperActor.GetProperty().SetColor(colors.GetColor3d(Flesh)) renderer1.AddActor(stripperActor) renderer2.AddActor(cyberActor) renderer1.SetBackground(colors.GetColor3d(Wheat)) renderer2.SetBackground(colors.GetColor3d(Papaya_Whip)) renderWindow.SetSize(1024, 640) cam1 vtkCamera() cam1.SetFocalPoint(0, 0, 0) cam1.SetPosition(1, 0, 0) cam1.SetViewUp(0, 1, 0) renderer1.SetActiveCamera(cam1) renderer2.SetActiveCamera(cam1) renderer1.ResetCamera() cam1.Azimuth(30) cam1.Elevation(30) cam1.Dolly(1.4) renderer1.ResetCameraClippingRange() interactor.Start() if __name__ __main__: main()