WindowedSincPolyDataFilter
Repository source: WindowedSincPolyDataFilter
Description¶
This example demonstrates how to smooth a mesh.
Other languages
See (CSharp)
Question
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Code¶
WindowedSincPolyDataFilter.cxx
#include <vtkNamedColors.h>
#include <vtkNew.h>
#include <vtkPolyDataMapper.h>
#include <vtkProperty.h>
#include <vtkRenderWindow.h>
#include <vtkRenderWindowInteractor.h>
#include <vtkRenderer.h>
#include <vtkSphereSource.h>
#include <vtkWindowedSincPolyDataFilter.h>
int main(int, char*[])
{
vtkNew<vtkNamedColors> colors;
vtkNew<vtkSphereSource> sphereSource;
sphereSource->Update();
vtkNew<vtkWindowedSincPolyDataFilter> smoother;
smoother->SetInputConnection(sphereSource->GetOutputPort());
smoother->SetNumberOfIterations(15);
smoother->BoundarySmoothingOff();
smoother->FeatureEdgeSmoothingOff();
smoother->SetFeatureAngle(120.0);
smoother->SetPassBand(.001);
smoother->NonManifoldSmoothingOn();
smoother->NormalizeCoordinatesOn();
smoother->Update();
vtkNew<vtkPolyDataMapper> smoothedMapper;
smoothedMapper->SetInputConnection(smoother->GetOutputPort());
vtkNew<vtkActor> smoothedActor;
smoothedActor->SetMapper(smoothedMapper);
smoothedActor->GetProperty()->SetColor(
colors->GetColor3d("LightCoral").GetData());
vtkNew<vtkPolyDataMapper> inputMapper;
inputMapper->SetInputConnection(sphereSource->GetOutputPort());
vtkNew<vtkActor> inputActor;
inputActor->SetMapper(inputMapper);
inputActor->GetProperty()->SetColor(
colors->GetColor3d("LightCoral").GetData());
// There will be one render window
vtkNew<vtkRenderWindow> renderWindow;
renderWindow->SetSize(600, 300);
renderWindow->SetWindowName("WindowedSincPolyDataFilter");
// And one interactor
vtkNew<vtkRenderWindowInteractor> interactor;
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.
vtkNew<vtkRenderer> leftRenderer;
renderWindow->AddRenderer(leftRenderer);
leftRenderer->SetViewport(leftViewport);
leftRenderer->SetBackground(colors->GetColor3d("BurlyWood").GetData());
vtkNew<vtkRenderer> rightRenderer;
renderWindow->AddRenderer(rightRenderer);
rightRenderer->SetViewport(rightViewport);
rightRenderer->SetBackground(colors->GetColor3d("DodgerBlue").GetData());
// Add the sphere to the left and the smoothed sphere 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 3.12 FATAL_ERROR)
project(WindowedSincPolyDataFilter)
find_package(VTK COMPONENTS
CommonColor
CommonCore
FiltersCore
FiltersSources
InteractionStyle
RenderingContextOpenGL2
RenderingCore
RenderingFreeType
RenderingGL2PSOpenGL2
RenderingOpenGL2
)
if (NOT VTK_FOUND)
message(FATAL_ERROR "WindowedSincPolyDataFilter: Unable to find the VTK build folder.")
endif()
# Prevent a "command line is too long" failure in Windows.
set(CMAKE_NINJA_FORCE_RESPONSE_FILE "ON" CACHE BOOL "Force Ninja to use response files.")
add_executable(WindowedSincPolyDataFilter MACOSX_BUNDLE WindowedSincPolyDataFilter.cxx )
target_link_libraries(WindowedSincPolyDataFilter PRIVATE ${VTK_LIBRARIES}
)
# vtk_module_autoinit is needed
vtk_module_autoinit(
TARGETS WindowedSincPolyDataFilter
MODULES ${VTK_LIBRARIES}
)
Download and Build WindowedSincPolyDataFilter¶
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
Be sure to add the VTK bin directory to your path. This will resolve the VTK dll's at run time.