Warnings

Question

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Code¶

Warnings.cxx

#include <vtkSmartPointer.h>
#include <vtkDataObject.h>
#include <vtkObjectFactory.h>

class TestClass : public vtkDataObject
{
  public:
  static TestClass *New();
  vtkTypeRevisionMacro(TestClass,vtkDataObject);
  TestClass()
  {
    vtkWarningMacro("Test warning.");
  }
};

vtkStandardNewMacro(TestClass);

int main(int, char *[])
{

  vtkSmartPointer<TestClass> test =
      vtkSmartPointer<TestClass>::New();

  return EXIT_SUCCESS;
}

CMakeLists.txt¶

cmake_minimum_required(VERSION 3.12 FATAL_ERROR)

project(Warnings)

find_package(VTK COMPONENTS 
  vtkCommonCore
  vtkCommonDataModel
  QUIET
)

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

Download and Build Warnings¶

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

cd Warnings/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:

./Warnings

WINDOWS USERS

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