CheckVTKVersion
vtk-examples/Cxx/Utilities/CheckVTKVersion
Description¶
This example demonstrates how to check the VTK version with vtkVersion.
Also demonstrated is the usage of the various version macros.
Question
If you have a question about this example, please use the VTK Discourse Forum
Code¶
CheckVTKVersion.cxx
#include <vtkVersion.h>
#ifdef VTK_VERSION_NUMBER
#if VTK_VERSION_NUMBER >= 90000000000ULL
#define VTK_VER_GE_90 1
#endif
#else
#define VTK_VERSION_NUMBER_NOT_DEFINED 1
#endif
namespace {
/**
* Check the VTK version.
*
* @param major: Major version.
* @param major: Minor version.
* @param major: Build version.
*
* @return True if the requested VTK version is greater or equal to the actual
* VTK version.
*/
bool VTKVersionOk(unsigned long long const& major,
unsigned long long const& minor,
unsigned long long const& build);
} // namespace
int main(int, char*[])
{
#ifdef VTK_VERSION_NUMBER
std::cout << "Source version: " << vtkVersion::GetVTKSourceVersion()
<< std::endl;
std::cout << "Major Version : " << vtkVersion::GetVTKMajorVersion()
<< std::endl;
std::cout << "Minor Version : " << vtkVersion::GetVTKMinorVersion()
<< std::endl;
#elif VTK_VERSION_NUMBER_NOT_DEFINED
std::cout << "VTK VTK_VERSION_NUMBER is not defined." << std::endl;
std::cout << "VTK Major Version: " << VTK_MAJOR_VERSION << std::endl;
std::cout << "VTK Minor Version: " << VTK_MINOR_VERSION << std::endl;
#endif
#ifdef VTK_VER_GE_90
std::cout << "VTK Version is >= " << VTK_VERSION_NUMBER << std::endl;
#endif
if (!VTKVersionOk(8, 90, 0))
{
std::cerr << "You need VTK version 8.90 or greater to run this program."
<< std::endl;
return EXIT_FAILURE;
}
else
{
std::cout << "You have the needed VTK version" << endl;
}
return EXIT_SUCCESS;
}
namespace {
bool VTKVersionOk(unsigned long long const& major,
unsigned long long const& minor,
unsigned long long const& build)
{
unsigned long long neededVersion =
10000000000ULL * major + 100000000ULL * minor + build;
#ifndef VTK_VERSION_NUMBER
auto ver = vtkSmartPointer<vtkVersion>();
unsigned long long vtk_version_number =
10000000000ULL * ver->GetVTKMajorVersion() +
100000000ULL * ver->GetVTKMinorVersion() + ver->GetVTKBuildVersion();
if (vtk_version_number >= neededVersion)
{
return true;
}
return false;
#else
if (VTK_VERSION_NUMBER >= neededVersion)
{
return true;
}
return false;
#endif
}
} // namespace
CMakeLists.txt¶
cmake_minimum_required(VERSION 3.12 FATAL_ERROR)
project(CheckVTKVersion)
find_package(VTK COMPONENTS
vtkCommonCore
QUIET
)
if (NOT VTK_FOUND)
message("Skipping CheckVTKVersion: ${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(CheckVTKVersion MACOSX_BUNDLE CheckVTKVersion.cxx )
target_link_libraries(CheckVTKVersion 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(CheckVTKVersion MACOSX_BUNDLE CheckVTKVersion.cxx )
target_link_libraries(CheckVTKVersion PRIVATE ${VTK_LIBRARIES})
# vtk_module_autoinit is needed
vtk_module_autoinit(
TARGETS CheckVTKVersion
MODULES ${VTK_LIBRARIES}
)
endif()
Download and Build CheckVTKVersion¶
Click here to download CheckVTKVersion and its CMakeLists.txt file. Once the tarball CheckVTKVersion.tar has been downloaded and extracted,
cd CheckVTKVersion/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:
./CheckVTKVersion
WINDOWS USERS
Be sure to add the VTK bin directory to your path. This will resolve the VTK dll's at run time.