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Warnings

vtk-examples/Cxx/Developers/Warnings

Question

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

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 
  CommonCore
  CommonDataModel
)

if (NOT VTK_FOUND)
  message(FATAL_ERROR "Warnings: 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(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}
)

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.