WindowedSincPolyDataFilter
VTKExamples/Cxx/Meshes/WindowedSincPolyDataFilter
Description¶
This example demonstrates how to smooth a mesh.
Code¶
WindowedSincPolyDataFilter.cxx
#include <vtkSmartPointer.h> #include <vtkPolyData.h> #include <vtkSphereSource.h> #include <vtkWindowedSincPolyDataFilter.h> #include <vtkRenderWindow.h> #include <vtkRenderWindowInteractor.h> #include <vtkPolyDataMapper.h> #include <vtkRenderer.h> int main(int, char *[]) { vtkSmartPointer<vtkSphereSource> sphereSource = vtkSmartPointer<vtkSphereSource>::New(); sphereSource->Update(); vtkSmartPointer<vtkWindowedSincPolyDataFilter> smoother = vtkSmartPointer<vtkWindowedSincPolyDataFilter>::New(); smoother->SetInputConnection(sphereSource->GetOutputPort()); smoother->SetNumberOfIterations(15); smoother->BoundarySmoothingOff(); smoother->FeatureEdgeSmoothingOff(); smoother->SetFeatureAngle(120.0); smoother->SetPassBand(.001); smoother->NonManifoldSmoothingOn(); smoother->NormalizeCoordinatesOn(); smoother->Update(); vtkSmartPointer<vtkPolyDataMapper> smoothedMapper = vtkSmartPointer<vtkPolyDataMapper>::New(); smoothedMapper->SetInputConnection(smoother->GetOutputPort()); vtkSmartPointer<vtkActor> smoothedActor = vtkSmartPointer<vtkActor>::New(); smoothedActor->SetMapper(smoothedMapper); vtkSmartPointer<vtkPolyDataMapper> inputMapper = vtkSmartPointer<vtkPolyDataMapper>::New(); inputMapper->SetInputConnection(sphereSource->GetOutputPort()); vtkSmartPointer<vtkActor> inputActor = vtkSmartPointer<vtkActor>::New(); inputActor->SetMapper(inputMapper); // There will be one render window vtkSmartPointer<vtkRenderWindow> renderWindow = vtkSmartPointer<vtkRenderWindow>::New(); renderWindow->SetSize(600, 300); // And one interactor vtkSmartPointer<vtkRenderWindowInteractor> interactor = vtkSmartPointer<vtkRenderWindowInteractor>::New(); interactor->SetRenderWindow(renderWindow); // Define viewport ranges // (xmin, ymin, xmax, ymax) double leftViewport[4] = {0.0, 0.0, 0.5, 1.0}; double rightViewport[4] = {0.5, 0.0, 1.0, 1.0}; // Setup both renderers vtkSmartPointer<vtkRenderer> leftRenderer = vtkSmartPointer<vtkRenderer>::New(); renderWindow->AddRenderer(leftRenderer); leftRenderer->SetViewport(leftViewport); leftRenderer->SetBackground(.6, .5, .4); vtkSmartPointer<vtkRenderer> rightRenderer = vtkSmartPointer<vtkRenderer>::New(); renderWindow->AddRenderer(rightRenderer); rightRenderer->SetViewport(rightViewport); rightRenderer->SetBackground(.4, .5, .6); // Add the sphere to the left and the cube to the right leftRenderer->AddActor(inputActor); rightRenderer->AddActor(smoothedActor); leftRenderer->ResetCamera(); rightRenderer->ResetCamera(); renderWindow->Render(); interactor->Start(); return EXIT_SUCCESS; }
CMakeLists.txt¶
cmake_minimum_required(VERSION 2.8) PROJECT(WindowedSincPolyDataFilter) find_package(VTK REQUIRED) include(${VTK_USE_FILE}) add_executable(WindowedSincPolyDataFilter MACOSX_BUNDLE WindowedSincPolyDataFilter.cxx) target_link_libraries(WindowedSincPolyDataFilter ${VTK_LIBRARIES})
Download and Build WindowedSincPolyDataFilter¶
Danger
The generation of tar files has not been ported to the new VTKExamples. Some tarballs may be missing or out-of-date.
Click here to download WindowedSincPolyDataFilter and its CMakeLists.txt file. Once the tarball WindowedSincPolyDataFilter.tar has been downloaded and extracted,
cd WindowedSincPolyDataFilter/build
If VTK is installed:
cmake ..
If VTK is not installed but compiled on your system, you will need to specify the path to your VTK build:
cmake -DVTK_DIR:PATH=/home/me/vtk_build ..
Build the project:
make
and run it:
./WindowedSincPolyDataFilter
WINDOWS USERS PLEASE NOTE: Be sure to add the VTK bin directory to your path. This will resolve the VTK dll's at run time.