vtkTestGraphAlgorithmSource
VTKExamples/Cxx/Developers/vtkTestGraphAlgorithmSource
Code
vtkTestGraphAlgorithmSource.cxx
#include "vtkTestGraphAlgorithmSource.h"
#include "vtkObjectFactory.h"
#include "vtkStreamingDemandDrivenPipeline.h"
#include "vtkInformationVector.h"
#include "vtkInformation.h"
#include "vtkDataObject.h"
#include "vtkSmartPointer.h"
#include "vtkMutableUndirectedGraph.h"
#include "vtkUndirectedGraph.h"
#include "vtkGraph.h"
vtkStandardNewMacro(vtkTestGraphAlgorithmSource);
vtkTestGraphAlgorithmSource::vtkTestGraphAlgorithmSource()
{
this->SetNumberOfInputPorts(0);
this->SetNumberOfOutputPorts(1);
}
vtkTestGraphAlgorithmSource::~vtkTestGraphAlgorithmSource()
{
}
int vtkTestGraphAlgorithmSource::RequestData(
vtkInformation *vtkNotUsed(request),
vtkInformationVector **vtkNotUsed(inputVector),
vtkInformationVector *outputVector)
{
vtkInformation *outInfo = outputVector->GetInformationObject(0);
vtkGraph *output = vtkGraph::SafeDownCast(
outInfo->Get(vtkDataObject::DATA_OBJECT()));
vtkSmartPointer<vtkMutableUndirectedGraph> NewGraph =
vtkSmartPointer<vtkMutableUndirectedGraph>::New();
//add 3 vertices
NewGraph->AddVertex();
NewGraph->AddVertex();
NewGraph->AddVertex();
output->ShallowCopy(NewGraph);
return 1;
}
int vtkTestGraphAlgorithmSource::RequestDataObject(
vtkInformation*,
vtkInformationVector**,
vtkInformationVector* )
{
vtkUndirectedGraph *output = 0;
output = vtkUndirectedGraph::New();
this->GetExecutive()->SetOutputData(0, output);
output->Delete();
return 1;
}
//----------------------------------------------------------------------------
void vtkTestGraphAlgorithmSource::PrintSelf(ostream& os, vtkIndent indent)
{
this->Superclass::PrintSelf(os,indent);
}
CMakeLists.txt
cmake_minimum_required(VERSION 2.8)
PROJECT(vtkTestGraphAlgorithmSource)
find_package(VTK REQUIRED)
include(${VTK_USE_FILE})
add_executable(vtkTestGraphAlgorithmSource MACOSX_BUNDLE vtkTestGraphAlgorithmSource.cxx)
target_link_libraries(vtkTestGraphAlgorithmSource ${VTK_LIBRARIES})
Download and Build vtkTestGraphAlgorithmSource
Click here to download vtkTestGraphAlgorithmSource and its CMakeLists.txt file. Once the tarball vtkTestGraphAlgorithmSource.tar has been downloaded and extracted,
cd vtkTestGraphAlgorithmSource/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:
./vtkTestGraphAlgorithmSource
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.