VTK/Examples/Cxx/Broken/Implicit/MarchingContourFilter
From KitwarePublic
Jump to navigationJump to searchContents
MarchingContourFilter.cxx
#include <vtkSmartPointer.h>
#include <vtkImageData.h>
#include <vtkXMLPolyDataWriter.h>
#include <vtkCellData.h>
#include <vtkDoubleArray.h>
#include <vtkPointData.h>
#include <vtkPolyLine.h>
#include <vtkPolyData.h>
#include <vtkPolyDataMapper.h>
#include <vtkActor.h>
#include <vtkRenderWindow.h>
#include <vtkRenderer.h>
#include <vtkRenderWindowInteractor.h>
#include <vtkProperty.h>
#include <vtkInteractorStyleTrackballCamera.h>
#include <vtkPointSource.h>
#include <vtkMarchingContourFilter.h>
#include <vtkVertexGlyphFilter.h>
#include <vtkVoxelModeller.h>
int main(int, char *[])
{
// Create a point cloud
unsigned int numberOfPoints = 50;
vtkSmartPointer<vtkPointSource> pointSource =
vtkSmartPointer<vtkPointSource>::New();
pointSource->SetCenter(0.0, 0.0, 0.0);
pointSource->SetNumberOfPoints(numberOfPoints);
pointSource->SetRadius(5.0);
pointSource->Update();
vtkSmartPointer<vtkVertexGlyphFilter> vertexGlyphFilter =
vtkSmartPointer<vtkVertexGlyphFilter>::New();
vertexGlyphFilter->AddInputData(pointSource->GetOutput());
vertexGlyphFilter->Update();
vtkSmartPointer<vtkDoubleArray> scalars = vtkSmartPointer<vtkDoubleArray>::New();
scalars->SetNumberOfTuples(numberOfPoints);
scalars->SetNumberOfComponents(1);
for(vtkIdType i = 0; i < numberOfPoints; ++i)
{
scalars->InsertValue(i,10.0f*drand48());
}
vtkPolyData* data = pointSource->GetOutput();
data->GetPointData()->SetScalars(scalars);
{
vtkSmartPointer<vtkXMLPolyDataWriter> writer = vtkSmartPointer<vtkXMLPolyDataWriter>::New();
writer->SetFileName("input.vtp");
writer->SetInputData(data);
writer->Update();
}
vtkSmartPointer<vtkVoxelModeller> voxelModeller =
vtkSmartPointer<vtkVoxelModeller>::New();
double bounds[6];
data->GetBounds(bounds);
voxelModeller->SetSampleDimensions(50,50,50);
voxelModeller->SetModelBounds(bounds);
voxelModeller->SetScalarTypeToFloat();
// voxelModeller->SetMaximumDistance(.1);
voxelModeller->SetInputData(data);
voxelModeller->Update();
// Create a vtkPoints object and store the points in it
vtkSmartPointer<vtkMarchingContourFilter> marchingContourFilter =
vtkSmartPointer<vtkMarchingContourFilter>::New();
marchingContourFilter->SetInputData(voxelModeller->GetOutput());
marchingContourFilter->GenerateValues(3, 0.0f, 10.0f);
// marchingContourFilter->GenerateValues(1, 5.0f, 5.0f);
marchingContourFilter->Update();
{
vtkSmartPointer<vtkXMLPolyDataWriter> writer = vtkSmartPointer<vtkXMLPolyDataWriter>::New();
writer->SetFileName("test.vtp");
writer->SetInputData(marchingContourFilter->GetOutput());
writer->Update();
}
// Create a mapper and actor
vtkSmartPointer<vtkPolyDataMapper> mapper =
vtkSmartPointer<vtkPolyDataMapper>::New();
mapper->SetInputConnection(marchingContourFilter->GetOutputPort());
vtkSmartPointer<vtkActor> actor =
vtkSmartPointer<vtkActor>::New();
actor->SetMapper(mapper);
// Create a renderer, render window, and interactor
vtkSmartPointer<vtkRenderer> renderer =
vtkSmartPointer<vtkRenderer>::New();
vtkSmartPointer<vtkRenderWindow> renderWindow =
vtkSmartPointer<vtkRenderWindow>::New();
renderWindow->AddRenderer(renderer);
vtkSmartPointer<vtkRenderWindowInteractor> renderWindowInteractor =
vtkSmartPointer<vtkRenderWindowInteractor>::New();
renderWindowInteractor->SetRenderWindow(renderWindow);
vtkSmartPointer<vtkInteractorStyleTrackballCamera> style =
vtkSmartPointer<vtkInteractorStyleTrackballCamera>::New();
renderWindowInteractor->SetInteractorStyle( style );
// Add the actor to the scene
renderer->AddActor(actor);
// Render and interact
renderWindow->Render();
renderWindowInteractor->Start();
return EXIT_SUCCESS;
}
Please try the new VTKExamples website.
CMakeLists.txt
cmake_minimum_required(VERSION 2.8)
PROJECT(MarchingContourFilter)
find_package(VTK REQUIRED)
include(${VTK_USE_FILE})
add_executable(MarchingContourFilter MACOSX_BUNDLE MarchingContourFilter.cxx)
if(VTK_LIBRARIES)
target_link_libraries(MarchingContourFilter ${VTK_LIBRARIES})
else()
target_link_libraries(MarchingContourFilter vtkHybrid vtkWidgets)
endif()
Download and Build MarchingContourFilter
Click here to download MarchingContourFilter. and its CMakeLists.txt file.
Once the tarball MarchingContourFilter.tar has been downloaded and extracted,
cd MarchingContourFilter/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:
./MarchingContourFilter
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.