VTK/Examples/Cxx/PolyData/PolygonalSurfacePointPlacer
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< VTK | Examples | Cxx(Redirected from VTK/Examples/Cxx/PolyData/vtkPolygonalSurfacePointPlacer)
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Contents
PolygonalSurfacePointPlacer.cxx
#include <vtkSmartPointer.h>
#include <vtkCommand.h>
#include <vtkProperty.h>
#include <vtkContourWidget.h>
#include <vtkSphereSource.h>
#include <vtkPolyDataMapper.h>
#include <vtkActor.h>
#include <vtkRenderer.h>
#include <vtkRenderWindow.h>
#include <vtkRenderWindowInteractor.h>
#include <vtkPolyDataCollection.h>
#include <vtkPolygonalSurfacePointPlacer.h>
#include <vtkOrientedGlyphContourRepresentation.h>
class MyCallback : public vtkCommand
{
public:
static MyCallback *New()
{
return new MyCallback;
}
MyCallback(){}
virtual void Execute(vtkObject *caller, unsigned long, void*)
{
vtkContourWidget *contourWidget = reinterpret_cast<vtkContourWidget*>(caller);
vtkContourRepresentation* rep = static_cast<vtkContourRepresentation *>(contourWidget->GetRepresentation());
std::cout << "There are " << rep->GetNumberOfNodes() << " nodes." << std::endl;
}
void SetSphereSource(vtkSmartPointer<vtkSphereSource> sphere) {this->SphereSource = sphere;}
private:
vtkSmartPointer<vtkSphereSource> SphereSource;
};
int main(int, char *[])
{
vtkSmartPointer<vtkSphereSource> sphereSource =
vtkSmartPointer<vtkSphereSource>::New();
sphereSource->SetRadius(5);
sphereSource->Update();
vtkSmartPointer<vtkPolyDataMapper> mapper =
vtkSmartPointer<vtkPolyDataMapper>::New();
mapper->SetInputConnection(sphereSource->GetOutputPort());
vtkSmartPointer<vtkActor> actor =
vtkSmartPointer<vtkActor>::New();
actor->SetMapper(mapper);
// Create the RenderWindow, Renderer
vtkSmartPointer<vtkRenderer> renderer =
vtkSmartPointer<vtkRenderer>::New();
vtkSmartPointer<vtkRenderWindow> renderWindow =
vtkSmartPointer<vtkRenderWindow>::New();
renderWindow->AddRenderer(renderer);
vtkSmartPointer<vtkRenderWindowInteractor> interactor =
vtkSmartPointer<vtkRenderWindowInteractor>::New();
interactor->SetRenderWindow(renderWindow);
renderer->AddActor(actor);
vtkSmartPointer<vtkContourWidget> contourWidget =
vtkSmartPointer<vtkContourWidget>::New();
contourWidget->SetInteractor(interactor);
vtkSmartPointer<MyCallback> callback =
vtkSmartPointer<MyCallback>::New();
callback->SetSphereSource(sphereSource);
contourWidget->AddObserver(vtkCommand::InteractionEvent,callback);
vtkOrientedGlyphContourRepresentation* rep =
vtkOrientedGlyphContourRepresentation::SafeDownCast(
contourWidget->GetRepresentation());
vtkSmartPointer<vtkPolygonalSurfacePointPlacer> pointPlacer =
vtkSmartPointer<vtkPolygonalSurfacePointPlacer>::New();
pointPlacer->AddProp(actor);
pointPlacer->GetPolys()->AddItem(sphereSource->GetOutput());
rep->GetLinesProperty()->SetColor(1, 0, 0);
rep->GetLinesProperty()->SetLineWidth(3.0);
rep->SetPointPlacer(pointPlacer);
contourWidget->EnabledOn();
renderer->ResetCamera();
renderWindow->Render();
interactor->Initialize();
interactor->Start();
return EXIT_SUCCESS;
}
Please try the new VTKExamples website.
CMakeLists.txt
cmake_minimum_required(VERSION 2.8)
PROJECT(PolygonalSurfacePointPlacer)
find_package(VTK REQUIRED)
include(${VTK_USE_FILE})
add_executable(PolygonalSurfacePointPlacer MACOSX_BUNDLE PolygonalSurfacePointPlacer.cxx)
if(VTK_LIBRARIES)
target_link_libraries(PolygonalSurfacePointPlacer ${VTK_LIBRARIES})
else()
target_link_libraries(PolygonalSurfacePointPlacer vtkHybrid vtkWidgets)
endif()
Download and Build PolygonalSurfacePointPlacer
Click here to download PolygonalSurfacePointPlacer. and its CMakeLists.txt file.
Once the tarball PolygonalSurfacePointPlacer.tar has been downloaded and extracted,
cd PolygonalSurfacePointPlacer/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:
./PolygonalSurfacePointPlacer
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.
Color. Show points that have been placed if possible.