MarchingCasesA

Description¶

Marching cubes cases for 3D isosurface generation. The 256 possible cases have been reduced to 15 cases using symmetry. Red vertices are greater than the selected isosurface value.

This example runs the example MarchingCases with the arguments 15 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14.

Info

See Figure 6-6 in Chapter 6 the VTK Textbook.

Other languages

See (Python)

Question

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

Code¶

MarchingCasesA.cxx

#include <vtkActor.h>
#include <vtkCamera.h>
#include <vtkContourFilter.h>
#include <vtkCubeSource.h>
#include <vtkExtractEdges.h>
#include <vtkFloatArray.h>
#include <vtkGlyph3D.h>
#include <vtkIdList.h>
#include <vtkNamedColors.h>
#include <vtkPointData.h>
#include <vtkPoints.h>
#include <vtkPolyDataMapper.h>
#include <vtkProperty.h>
#include <vtkRenderWindow.h>
#include <vtkRenderWindowInteractor.h>
#include <vtkRenderer.h>
#include <vtkShrinkPolyData.h>
#include <vtkSphereSource.h>
#include <vtkThresholdPoints.h>
#include <vtkTransform.h>
#include <vtkTransformPolyDataFilter.h>
#include <vtkTubeFilter.h>
#include <vtkUnstructuredGrid.h>
#include <vtkVectorText.h>

// Note that:
// vtkExtractEdges moved from vtkFiltersExtraction to vtkFiltersCore in
// VTK commit d9981b9aeb93b42d1371c6e295d76bfdc18430bd

#include "MarchingCases.cxx"

CMakeLists.txt¶

cmake_minimum_required(VERSION 3.12 FATAL_ERROR)

project(MarchingCasesA)

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

if (NOT VTK_FOUND)
  message(FATAL_ERROR "MarchingCasesA: 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(MarchingCasesA MACOSX_BUNDLE MarchingCasesA.cxx )
  target_link_libraries(MarchingCasesA PRIVATE ${VTK_LIBRARIES}
)
# vtk_module_autoinit is needed
vtk_module_autoinit(
  TARGETS MarchingCasesA
  MODULES ${VTK_LIBRARIES}
)

Download and Build MarchingCasesA¶

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

cd MarchingCasesA/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:

./MarchingCasesA

WINDOWS USERS

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