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
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.