EmbedPointsIntoVolume
VTKExamples/Cxx/PolyData/EmbedPointsIntoVolume
Code
EmbedPointsIntoVolume.cxx
#include <vtkVersion.h>
#include <vtkPolyData.h>
#include <vtkImageData.h>
#include <vtkSmartPointer.h>
#include <vtkXMLPolyDataReader.h>
#include <vtkXMLImageDataWriter.h>
#include <vtkGaussianSplatter.h>
#include <vtkSphereSource.h>
#include <vtkRenderer.h>
#include <vtkRenderWindow.h>
#include <vtkRenderWindowInteractor.h>
#include <vtkContourFilter.h>
#include <vtkPolyDataMapper.h>
#include <vtkActor.h>
#include <vtkProperty.h>
int main(int argc, char *argv[])
{
vtkSmartPointer<vtkPolyData> input =
vtkSmartPointer<vtkPolyData>::New();
if(argc == 1) // Generate the data
{
vtkSmartPointer<vtkSphereSource> sphereSource =
vtkSmartPointer<vtkSphereSource>::New();
sphereSource->SetRadius(.01);
sphereSource->Update();
input->ShallowCopy(sphereSource->GetOutput());
}
else // Read the data from a file
{
vtkSmartPointer<vtkXMLPolyDataReader> reader =
vtkSmartPointer<vtkXMLPolyDataReader>::New();
reader->SetFileName(argv[1]);
reader->Update();
input->ShallowCopy(reader->GetOutput());
}
vtkSmartPointer<vtkGaussianSplatter> splatter =
vtkSmartPointer<vtkGaussianSplatter>::New();
#if VTK_MAJOR_VERSION <= 5
splatter->SetInputConnection(input->GetProducerPort());
#else
splatter->SetInputData(input);
#endif
unsigned int n = 200;
splatter->SetSampleDimensions(n,n,n);
splatter->SetRadius(.02);
splatter->SetExponentFactor(-10);
splatter->SetEccentricity(2);
splatter->Update();
vtkSmartPointer<vtkContourFilter> isoSurface =
vtkSmartPointer<vtkContourFilter>::New();
isoSurface->SetInputConnection(splatter->GetOutputPort());
isoSurface->SetValue(0, .95 * splatter->GetRadius());
// Visualize
vtkSmartPointer<vtkPolyDataMapper> mapper =
vtkSmartPointer<vtkPolyDataMapper>::New();
mapper->SetInputConnection(isoSurface->GetOutputPort());
mapper->ScalarVisibilityOff();
vtkSmartPointer<vtkActor> actor =
vtkSmartPointer<vtkActor>::New();
actor->SetMapper(mapper);
actor->GetProperty()->SetColor(1.0, 0.3882, 0.2784);
vtkSmartPointer<vtkRenderer> renderer =
vtkSmartPointer<vtkRenderer>::New();
vtkSmartPointer<vtkRenderWindow> renderWindow =
vtkSmartPointer<vtkRenderWindow>::New();
renderWindow->AddRenderer(renderer);
vtkSmartPointer<vtkRenderWindowInteractor> renderWindowInteractor =
vtkSmartPointer<vtkRenderWindowInteractor>::New();
renderWindowInteractor->SetRenderWindow(renderWindow);
renderer->AddActor(actor);
renderer->SetBackground(.2, .3, .4);
renderWindow->Render();
renderWindowInteractor->Start();
return EXIT_SUCCESS;
}
CMakeLists.txt
cmake_minimum_required(VERSION 2.8)
PROJECT(EmbedPointsIntoVolume)
find_package(VTK REQUIRED)
include(${VTK_USE_FILE})
add_executable(EmbedPointsIntoVolume MACOSX_BUNDLE EmbedPointsIntoVolume.cxx)
target_link_libraries(EmbedPointsIntoVolume ${VTK_LIBRARIES})
Download and Build EmbedPointsIntoVolume
Click here to download EmbedPointsIntoVolume and its CMakeLists.txt file. Once the tarball EmbedPointsIntoVolume.tar has been downloaded and extracted,
cd EmbedPointsIntoVolume/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:
./EmbedPointsIntoVolume
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.