# ChartsOn3DScene

VTKExamples/Cxx/Plotting/ChartsOn3DScene

### Description

This example illustrates how to combine a 3D scene with a vtkChartXY.

### Code

ChartsOn3DScene.cxx

    #include <vtkNew.h>
    #include <vtkChartXY.h>

    #include <vtkNamedColors.h>
    #include <vtkActor.h>
    #include <vtkContextScene.h>
    #include <vtkContextActor.h>
    #include <vtkCubeSource.h>
    #include <vtkFloatArray.h>
    #include <vtkPlotPoints.h>
    #include <vtkPolyDataMapper.h>
    #include <vtkProperty.h>
    #include <vtkRenderer.h>
    #include <vtkRenderWindow.h>
    #include <vtkRenderWindowInteractor.h>
    #include <vtkTable.h>
    #include <vtkCamera.h>

    //----------------------------------------------------------------------------
    int main(int , char * [])
    {

      vtkNew<vtkNamedColors> colors;

      vtkNew<vtkRenderWindow> renwin;
      renwin->SetMultiSamples(4);
      renwin->SetSize(640, 480);

      vtkNew<vtkRenderWindowInteractor> iren;
      iren->SetRenderWindow(renwin);

      vtkNew<vtkRenderer> renderer;
      renderer->SetBackground(colors->GetColor4d("seagreen").GetData());
      renwin->AddRenderer(renderer);

      renderer->ResetCamera();
      renderer->GetActiveCamera()->SetPosition(1.0, 1.0, -4.0);
      renderer->GetActiveCamera()->Azimuth(40);

      // Cube Source 1
      vtkNew<vtkCubeSource> cube;

      vtkNew<vtkPolyDataMapper> cubeMapper;
      cubeMapper->SetInputConnection(cube->GetOutputPort());

      vtkNew<vtkActor> cubeActor;
      cubeActor->SetMapper(cubeMapper);
      cubeActor->GetProperty()->SetColor(colors->GetColor4d("peacock").GetData());
      renderer->AddActor(cubeActor);
      cubeActor->GetProperty()->SetRepresentationToSurface();

      // Now the chart
      vtkNew<vtkChartXY> chart;
      vtkNew<vtkContextScene> chartScene;
      vtkNew<vtkContextActor> chartActor;

      chart->SetAutoSize(false);
      chart->SetSize(vtkRectf(0.0, 0.0, 320, 220));

      chartScene->AddItem(chart);
      chartActor->SetScene(chartScene);

      //both needed
      renderer->AddActor(chartActor);
      chartScene->SetRenderer(renderer);

      // Create a table with some points in it...
      vtkNew<vtkTable> table;

      vtkNew<vtkFloatArray> arrX;
      arrX->SetName("X Axis");
      table->AddColumn(arrX);

      vtkNew<vtkFloatArray> arrC;
      arrC->SetName("Cosine");
      table->AddColumn(arrC);

      vtkNew<vtkFloatArray> arrS;
      arrS->SetName("Sine");
      table->AddColumn(arrS);

      vtkNew<vtkFloatArray> arrT;
      arrT->SetName("Tan");
      table->AddColumn(arrT);

      // Test charting with a few more points...
      int numPoints = 69;
      float inc = 7.5 / (numPoints-1);
      table->SetNumberOfRows(numPoints);
      table->SetNumberOfRows(numPoints);
      for (int i = 0; i < numPoints; ++i)
      {
        table->SetValue(i, 0, i * inc);
        table->SetValue(i, 1, cos(i * inc) + 0.0);
        table->SetValue(i, 2, sin(i * inc) + 0.0);
        table->SetValue(i, 3, tan(i * inc) + 0.5);
      }

      // Add multiple line plots, setting the colors etc
      vtkColor3d color3d = colors->GetColor3d("banana");

      vtkPlot *points = chart->AddPlot(vtkChart::POINTS);
      points->SetInputData(table, 0, 1);
      points->SetColor(color3d.GetRed(), color3d.GetGreen(), color3d.GetBlue());
      points->SetWidth(1.0);
      vtkPlotPoints::SafeDownCast(points)->SetMarkerStyle(vtkPlotPoints::CROSS);
      points = chart->AddPlot(vtkChart::POINTS);
      points->SetInputData(table, 0, 2);
      points->SetColor(color3d.GetRed(), color3d.GetGreen(), color3d.GetBlue());
      points->SetWidth(1.0);
      vtkPlotPoints::SafeDownCast(points)->SetMarkerStyle(vtkPlotPoints::PLUS);
      points = chart->AddPlot(vtkChart::POINTS);
      points->SetInputData(table, 0, 3);
      points->SetColor(color3d.GetRed(), color3d.GetGreen(), color3d.GetBlue());
      points->SetWidth(1.0);

      renwin->SetMultiSamples(0);
      renwin->Render();
      iren->Initialize();
      iren->Start();

      return EXIT_SUCCESS;
    }

### CMakeLists.txt

    cmake_minimum_required(VERSION 3.3 FATAL_ERROR)

    project(ChartsOn3DScene)

    find_package(VTK COMPONENTS
      vtkChartsCore
      vtkCommonColor
      vtkCommonCore
      vtkCommonDataModel
      vtkFiltersSources
      vtkInteractionStyle
      vtkRenderingContext2D
      vtkRenderingContextOpenGL2
      vtkRenderingCore
      vtkRenderingFreeType
      vtkRenderingGL2PSOpenGL2
      vtkRenderingOpenGL2 QUIET)
    if (NOT VTK_FOUND)
      message("Skipping ChartsOn3DScene: ${VTK_NOT_FOUND_MESSAGE}")
      return ()
    endif()
    message (STATUS "VTK_VERSION: ${VTK_VERSION}")
    if (VTK_VERSION VERSION_LESS "8.90.0")
      # old system
      include(${VTK_USE_FILE})
      add_executable(ChartsOn3DScene MACOSX_BUNDLE ChartsOn3DScene.cxx )
      target_link_libraries(ChartsOn3DScene PRIVATE ${VTK_LIBRARIES})
    else ()
      # include all components
      add_executable(ChartsOn3DScene MACOSX_BUNDLE ChartsOn3DScene.cxx )
      target_link_libraries(ChartsOn3DScene PRIVATE ${VTK_LIBRARIES})
      # vtk_module_autoinit is needed
      vtk_module_autoinit(
        TARGETS ChartsOn3DScene
        MODULES ${VTK_LIBRARIES}
        )
    endif ()

### Download and Build ChartsOn3DScene

Click here to download ChartsOn3DScene and its CMakeLists.txt file. Once the tarball ChartsOn3DScene.tar has been downloaded and extracted,

    cd ChartsOn3DScene/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:

    ./ChartsOn3DScene

WINDOWS USERS

Be sure to add the VTK bin directory to your path. This will resolve the VTK dll's at run time.