AlgorithmSource

VTKExamples/Cxx/Developers/AlgorithmSource

Description

This example demonstrates how to create a source that returns a custom class. To test that it is working, the class vtkTest1 simply stores a double named 'Value' that is instantiated to the value of 4.5. Example.cxx instantiates a vtkTestSource which produces a vtkTest1.

Code

AlgorithmSource.cxx

#include <vtkSmartPointer.h>

#include "vtkTestAlgorithmSource.h"
#include "vtkTest1.h"

int main(int, char *[])
{
  vtkTestAlgorithmSource* source = vtkTestAlgorithmSource::New();
  source->Update();

  vtkTest1* test = source->GetOutput();
  std::cout << test->GetValue() << std::endl;

  return EXIT_SUCCESS;
}

CMakeLists.txt

cmake_minimum_required(VERSION 2.8)

PROJECT(AlgorithmSource)

find_package(VTK REQUIRED)
include(${VTK_USE_FILE})

add_executable(AlgorithmSource MACOSX_BUNDLE AlgorithmSource.cxx)

target_link_libraries(AlgorithmSource ${VTK_LIBRARIES})

Download and Build AlgorithmSource

Click here to download AlgorithmSource and its CMakeLists.txt file. Once the tarball AlgorithmSource.tar has been downloaded and extracted,

cd AlgorithmSource/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:

./AlgorithmSource

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.