Mace

VTKExamples/Cxx/Rendering/Mace


Description

An example of multiple inputs and outputs.

Other Languages

See (Python), (Java)

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

Mace.cxx

#include <vtkConeSource.h>
#include <vtkGlyph3D.h>
#include <vtkNamedColors.h>
#include <vtkPolyData.h>
#include <vtkPolyDataMapper.h>
#include <vtkRenderWindow.h>
#include <vtkRenderWindowInteractor.h>
#include <vtkRenderer.h>
#include <vtkSphereSource.h>

int main( int, char *[] )
{
  vtkSmartPointer<vtkNamedColors> colors =
    vtkSmartPointer<vtkNamedColors>::New();

  vtkSmartPointer<vtkRenderer> renderer =
    vtkSmartPointer<vtkRenderer>::New();

  vtkSmartPointer<vtkRenderWindow> renWin =
    vtkSmartPointer<vtkRenderWindow>::New();
  renWin->AddRenderer(renderer);

  vtkSmartPointer<vtkRenderWindowInteractor> iren =
    vtkSmartPointer<vtkRenderWindowInteractor>::New();
  iren->SetRenderWindow(renWin);

  vtkSmartPointer<vtkSphereSource> sphere =
    vtkSmartPointer<vtkSphereSource>::New();
  sphere->SetThetaResolution(8); sphere->SetPhiResolution(8);

  vtkSmartPointer<vtkPolyDataMapper> sphereMapper =
    vtkSmartPointer<vtkPolyDataMapper>::New();
  sphereMapper->SetInputConnection(sphere->GetOutputPort());

  vtkSmartPointer<vtkActor> sphereActor =
    vtkSmartPointer<vtkActor>::New();
  sphereActor->SetMapper(sphereMapper);

  vtkSmartPointer<vtkConeSource> cone =
    vtkSmartPointer<vtkConeSource>::New();
  cone->SetResolution(6);

  vtkSmartPointer<vtkGlyph3D> glyph =
    vtkSmartPointer<vtkGlyph3D>::New();
  glyph->SetInputConnection(sphere->GetOutputPort());
  glyph->SetSourceConnection(cone->GetOutputPort());
  glyph->SetVectorModeToUseNormal();
  glyph->SetScaleModeToScaleByVector();
  glyph->SetScaleFactor(0.25);

  vtkSmartPointer<vtkPolyDataMapper> spikeMapper =
    vtkSmartPointer<vtkPolyDataMapper>::New();
  spikeMapper->SetInputConnection(glyph->GetOutputPort());

  vtkSmartPointer<vtkActor> spikeActor =
    vtkSmartPointer<vtkActor>::New();
  spikeActor->SetMapper(spikeMapper);

  renderer->AddActor(sphereActor);
  renderer->AddActor(spikeActor);
  renderer->SetBackground(colors->GetColor3d("SlateGray").GetData());
  renWin->SetSize(640, 480);

  // interact with data
  renWin->Render();

  iren->Start();

  return EXIT_SUCCESS;
}

CMakeLists.txt

cmake_minimum_required(VERSION 3.3 FATAL_ERROR)

project(Mace)

find_package(VTK COMPONENTS 
  vtkCommonColor
  vtkCommonDataModel
  vtkFiltersCore
  vtkFiltersSources
  vtkInteractionStyle
  vtkRenderingCore
  vtkRenderingFreeType
  vtkRenderingOpenGL2 QUIET)
if (NOT VTK_FOUND)
  message("Skipping Mace: ${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(Mace MACOSX_BUNDLE Mace.cxx )
  target_link_libraries(Mace PRIVATE ${VTK_LIBRARIES})
else ()
  # include all components
  add_executable(Mace MACOSX_BUNDLE Mace.cxx )
  target_link_libraries(Mace PRIVATE ${VTK_LIBRARIES})
  # vtk_module_autoinit is needed
  vtk_module_autoinit(
    TARGETS Mace
    MODULES ${VTK_LIBRARIES}
    )
endif () 

Download and Build Mace

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

cd Mace/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:

./Mace

WINDOWS USERS

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