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怎样架设网站,网站设计流程步骤,外贸网站建设制作,成都有什么好玩的地方景点一#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①vtkImplicitModeller隐式建模 二#xf…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①vtkImplicitModeller隐式建模二代码及注释import vtkmodules.vtkInteractionStyle import vtkmodules.vtkRenderingOpenGL2 from vtkmodules.vtkCommonColor import vtkNamedColors from vtkmodules.vtkIOLegacy import vtkPolyDataReader from vtkmodules.vtkCommonTransforms import vtkTransform from vtkmodules.vtkFiltersGeneral import vtkTransformPolyDataFilter from vtkmodules.vtkFiltersCore import vtkAppendPolyData, vtkPolyDataNormals, vtkContourFilter from vtkmodules.vtkFiltersHybrid import vtkImplicitModeller from vtkmodules.vtkRenderingCore import ( vtkActor, vtkPolyDataMapper, vtkProperty, vtkRenderWindow, vtkRenderWindowInteractor, vtkRenderer ) def main(): colors vtkNamedColors() fileName1, fileName2, fileName3 Data/v.vtk, Data/t.vtk, Data/k.vtk aRenderer vtkRenderer() aRenderWindow vtkRenderWindow() aRenderWindow.AddRenderer(aRenderer) anInteractor vtkRenderWindowInteractor() anInteractor.SetRenderWindow(aRenderWindow) aRenderWindow.SetSize(300, 300) aRenderWindow.SetWindowName(BlobbyLogo) letterV vtkPolyDataReader() letterV.SetFileName(fileName1) letterT vtkPolyDataReader() letterT.SetFileName(fileName2) letterK vtkPolyDataReader() letterK.SetFileName(fileName3) VTransform vtkTransform() VTransform.Translate(-16.0, 0.0, 12.5) VTransform.RotateY(40) VTransformFilter vtkTransformPolyDataFilter() VTransformFilter.SetInputConnection(letterV.GetOutputPort()) VTransformFilter.SetTransform(VTransform) TTransform vtkTransform() TTransformFilter vtkTransformPolyDataFilter() TTransformFilter.SetInputConnection(letterT.GetOutputPort()) TTransformFilter.SetTransform(TTransform) KTransform vtkTransform() KTransform.Translate(14.0, 0.0, 0.0) KTransform.RotateY(-40) KTransformFilter vtkTransformPolyDataFilter() KTransformFilter.SetInputConnection(letterK.GetOutputPort()) KTransformFilter.SetTransform(KTransform) appendAll vtkAppendPolyData() appendAll.AddInputConnection(VTransformFilter.GetOutputPort()) appendAll.AddInputConnection(TTransformFilter.GetOutputPort()) appendAll.AddInputConnection(KTransformFilter.GetOutputPort()) logoNormals vtkPolyDataNormals() logoNormals.SetInputConnection(appendAll.GetOutputPort()) logoNormals.SetFeatureAngle(60) logoMapper vtkPolyDataMapper() logoMapper.SetInputConnection(logoNormals.GetOutputPort()) logo vtkActor() logo.SetMapper(logoMapper) # 隐式建模 # vtkImplicitModeller 输入的几何reader 读出的模型比如一个 vtkPolyData转换成一个 隐式函数场 blobbyLogoImp vtkImplicitModeller() blobbyLogoImp.SetInputConnection(appendAll.GetOutputPort()) vtkImplicitModeller 会计算每个体素到输入几何表面的最小距离但为了性能考虑不会无限计算 而是如果距离超过 MaximumDistance就不再计算直接设为这个最大值 可以理解成值越大生成的“模糊边缘blobby”越宽值越小模型越“紧贴”原始几何 blobbyLogoImp.SetMaximumDistance(0.075) blobbyLogoImp.SetSampleDimensions(64, 64, 64) # 表示输出的体数据是一个 64×64×64 的三维网格 blobbyLogoImp.SetAdjustDistance(0.05) # 调整隐式距离的“软化程度”或“平滑边界宽度” 当多个几何靠得很近时这个参数能让它们“自然融合”成一个连续的体 blobbyLogoIso vtkContourFilter() blobbyLogoIso.SetInputConnection(blobbyLogoImp.GetOutputPort()) blobbyLogoIso.SetValue(1, 1.5) blobbyLogoMapper vtkPolyDataMapper() blobbyLogoMapper.SetInputConnection(blobbyLogoIso.GetOutputPort()) blobbyLogoMapper.ScalarVisibilityOff() tomato vtkProperty() tomato.SetDiffuseColor(colors.GetColor3d(tomato)) tomato.SetSpecular(.3) tomato.SetSpecularPower(20) banana vtkProperty() banana.SetDiffuseColor(colors.GetColor3d(banana)) banana.SetDiffuse(.7) banana.SetSpecular(.4) banana.SetSpecularPower(20) blobbyLogo vtkActor() blobbyLogo.SetMapper(blobbyLogoMapper) blobbyLogo.SetProperty(banana) logo.SetProperty(tomato) logo.SetPosition(0, 0, 6) aRenderer.AddActor(logo) aRenderer.AddActor(blobbyLogo) aRenderer.SetBackground(colors.GetColor3d(SlateGray)) aRenderWindow.Render() anInteractor.Start() if __name__ __main__: main()