ChartsOn3DScene

VTKExamples/Cxx/Plotting/ChartsOn3DScene


Description

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

Question

If you have a simple question about this example contact us at VTKExamplesProject If your question is more complex and may require extended discussion, please use the VTK Discourse Forum

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);
  dynamic_cast<vtkPlotPoints*>(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);
  dynamic_cast<vtkPlotPoints*>(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.