FilenameFunctions
VTKExamples/Cxx/Utilities/FilenameFunctions
Description¶
This example gets a list of all files in a directory. It then extracts the file extension and filename from each string.
Code¶
FilenameFunctions.cxx
#include <vtkSmartPointer.h> #include <vtkDirectory.h> #include <vtksys/SystemTools.hxx> #include <string> int main(int argc, char *argv[]) { std::string directoryName; if(argc < 2) { directoryName = std::string("."); } else { directoryName = std::string(argv[1]); } vtkSmartPointer<vtkDirectory> directory = vtkSmartPointer<vtkDirectory>::New(); int opened = directory->Open(directoryName.c_str()); if(!opened) { std::cout << "Invalid directory!" << std::endl; return EXIT_FAILURE; } int numberOfFiles = directory->GetNumberOfFiles(); std::cout << "Number of files: " << numberOfFiles << std::endl; for (int i = 0; i < numberOfFiles; i++) { std::string fileString = directoryName; fileString += "/"; fileString += directory->GetFile(i); std::string ext = vtksys::SystemTools::GetFilenameLastExtension(fileString); std::cout << fileString << " extension: " << ext << std::endl; std::string name = vtksys::SystemTools::GetFilenameWithoutLastExtension(fileString); std::cout << "name: " << name << std::endl; } return EXIT_SUCCESS; }
CMakeLists.txt¶
cmake_minimum_required(VERSION 2.8) PROJECT(FilenameFunctions) find_package(VTK REQUIRED) include(${VTK_USE_FILE}) add_executable(FilenameFunctions MACOSX_BUNDLE FilenameFunctions.cxx) target_link_libraries(FilenameFunctions ${VTK_LIBRARIES})
Download and Build FilenameFunctions¶
Danger
The generation of tar files has not been ported to the new VTKExamples. Some tarballs may be missing or out-of-date.
Click here to download FilenameFunctions and its CMakeLists.txt file. Once the tarball FilenameFunctions.tar has been downloaded and extracted,
cd FilenameFunctions/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:
./FilenameFunctions
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.