TessellatedBoxSource

Description¶

Generates a box(cube) using vtkTessellatedBoxSource with 6 sides. The faces of the box can be subdivided into multiple triangles or quads.

Seealso

Cube generates multiple quads or triangles per side.

Other languages

See (Python), (PythonicAPI)

Question

If you have a question about this example, please use the VTK Discourse Forum

Code¶

TessellatedBoxSource.cxx

#include <vtkActor.h>
#include <vtkCamera.h>
#include <vtkDataSetMapper.h>
#include <vtkNamedColors.h>
#include <vtkNew.h>
#include <vtkProperty.h>
#include <vtkRenderWindow.h>
#include <vtkRenderWindowInteractor.h>
#include <vtkRenderer.h>
#include <vtkShrinkFilter.h>
#include <vtkTessellatedBoxSource.h>

int main(int /* argc */, char* /* argv */[])
{
  double bounds[6];
  bounds[0] = -10.0;
  bounds[1] = 10.0;
  bounds[2] = 10.0;
  bounds[3] = 20.0;
  bounds[4] = -5.0;
  bounds[5] = 5.0;

  vtkNew<vtkTessellatedBoxSource> boxSource;
  boxSource->SetLevel(3);
  boxSource->QuadsOn();
  boxSource->SetBounds(bounds);
  boxSource->SetOutputPointsPrecision(vtkAlgorithm::SINGLE_PRECISION);

  vtkNew<vtkShrinkFilter> shrink;
  shrink->SetInputConnection(boxSource->GetOutputPort());
  shrink->SetShrinkFactor(.8);

  // Create a mapper and actor
  vtkNew<vtkNamedColors> colors;

  vtkNew<vtkDataSetMapper> mapper;
  mapper->SetInputConnection(shrink->GetOutputPort());

  vtkNew<vtkProperty> back;
  back->SetColor(colors->GetColor3d("Tomato").GetData());

  vtkNew<vtkActor> actor;
  actor->SetMapper(mapper);
  actor->GetProperty()->EdgeVisibilityOn();
  actor->GetProperty()->SetColor(colors->GetColor3d("Banana").GetData());
  actor->SetBackfaceProperty(back);

  // Create a renderer, render window, and interactor
  vtkNew<vtkRenderer> renderer;
  vtkNew<vtkRenderWindow> renderWindow;
  renderWindow->AddRenderer(renderer);
  vtkNew<vtkRenderWindowInteractor> renderWindowInteractor;
  renderWindowInteractor->SetRenderWindow(renderWindow);

  // Add the actors to the scene
  renderer->AddActor(actor);
  renderer->SetBackground(colors->GetColor3d("Silver").GetData());

  renderer->ResetCamera();
  renderer->GetActiveCamera()->Azimuth(30);
  renderer->GetActiveCamera()->Elevation(30);
  renderer->ResetCameraClippingRange();

  // Render and interact
  renderWindow->SetSize(640, 480);
  renderWindow->SetWindowName("TessellatedBoxSource");
  renderWindow->Render();
  renderWindowInteractor->Start();

  return EXIT_SUCCESS;
}

CMakeLists.txt¶

cmake_minimum_required(VERSION 3.12 FATAL_ERROR)

project(TessellatedBoxSource)

find_package(VTK COMPONENTS 
  CommonColor
  CommonCore
  FiltersGeneral
  FiltersSources
  InteractionStyle
  RenderingContextOpenGL2
  RenderingCore
  RenderingFreeType
  RenderingGL2PSOpenGL2
  RenderingOpenGL2
)

if (NOT VTK_FOUND)
  message(FATAL_ERROR "TessellatedBoxSource: Unable to find the VTK build folder.")
endif()

# Prevent a "command line is too long" failure in Windows.
set(CMAKE_NINJA_FORCE_RESPONSE_FILE "ON" CACHE BOOL "Force Ninja to use response files.")
add_executable(TessellatedBoxSource MACOSX_BUNDLE TessellatedBoxSource.cxx )
  target_link_libraries(TessellatedBoxSource PRIVATE ${VTK_LIBRARIES}
)
# vtk_module_autoinit is needed
vtk_module_autoinit(
  TARGETS TessellatedBoxSource
  MODULES ${VTK_LIBRARIES}
)

Download and Build TessellatedBoxSource¶

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

cd TessellatedBoxSource/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:

./TessellatedBoxSource

WINDOWS USERS

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