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ImplicitDataSet

vtk-examples/Cxx/ImplicitFunctions/ImplicitDataSet

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Question

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Code

ImplicitDataSet.cxx

#include <vtkImageData.h>
#include <vtkImplicitDataSet.h>
#include <vtkNew.h>
#include <vtkRTAnalyticSource.h>
#include <vtkSphereSource.h>

int main(int /* argc */, char* /* argv */[])
{
  vtkNew<vtkRTAnalyticSource> waveletSource;
  waveletSource->Update();

  vtkNew<vtkImplicitDataSet> implicitWavelet;
  implicitWavelet->SetDataSet(waveletSource->GetOutput());

  double x[3] = {0.5, 0, 0};
  // Value should roughly be 258.658.
  cout << "x: " << implicitWavelet->EvaluateFunction(x) << endl;

  return EXIT_SUCCESS;
}

CMakeLists.txt

cmake_minimum_required(VERSION 3.12 FATAL_ERROR)

project(ImplicitDataSet)

find_package(VTK COMPONENTS 
  vtkCommonCore
  vtkCommonDataModel
  vtkFiltersSources
  vtkImagingCore
  QUIET
)

if (NOT VTK_FOUND)
  message("Skipping ImplicitDataSet: ${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(ImplicitDataSet MACOSX_BUNDLE ImplicitDataSet.cxx )
  target_link_libraries(ImplicitDataSet PRIVATE ${VTK_LIBRARIES})
else()
  # 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(ImplicitDataSet MACOSX_BUNDLE ImplicitDataSet.cxx )
  target_link_libraries(ImplicitDataSet PRIVATE ${VTK_LIBRARIES})
  # vtk_module_autoinit is needed
  vtk_module_autoinit(
    TARGETS ImplicitDataSet
    MODULES ${VTK_LIBRARIES}
    )
endif()

Download and Build ImplicitDataSet

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

cd ImplicitDataSet/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:

./ImplicitDataSet

WINDOWS USERS

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