VTK/Examples/Cxx/Utilities/WishList/TryDowncast

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TryDowncast.cxx

#include <vtkSmartPointer.h>
#include <vtkTryDowncast.h>

int main(int, char *[])
{
  // Demonstrate a check of a cast
  return EXIT_SUCCESS;
}

Please try the new VTKExamples website.

CMakeLists.txt

cmake_minimum_required(VERSION 2.8)

PROJECT(TryDowncast)

find_package(VTK REQUIRED)
include(${VTK_USE_FILE})

add_executable(TryDowncast MACOSX_BUNDLE TryDowncast.cxx)

if(VTK_LIBRARIES)
  target_link_libraries(TryDowncast ${VTK_LIBRARIES})
else()
  target_link_libraries(TryDowncast vtkHybrid vtkWidgets)
endif()

Download and Build TryDowncast

Click here to download TryDowncast. and its CMakeLists.txt file.

Once the tarball TryDowncast.tar has been downloaded and extracted,

cd TryDowncast/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:

./TryDowncast

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