ConvertFile
VTKExamples/Cxx/IO/ConvertFile
Description¶
This example demonstrates how to read a file and then write it to a different type of file. In this example, we read a vtp file and write a ply file, but simply by changing the reader/writer classes instantiated, different behavior can be achieved.
Code¶
ConvertFile.cxx
#include <vtkSmartPointer.h> #include <vtkPolyData.h> #include <vtkXMLPolyDataReader.h> #include <vtkPLYWriter.h> int main(int argc, char *argv[]) { if(argc < 3) { std::cerr << "Required arguments: input.vtp output.ply" << std::endl; return EXIT_FAILURE; } std::string inputFileName = argv[1]; std::string outputFileName = argv[2]; vtkSmartPointer<vtkXMLPolyDataReader> reader = vtkSmartPointer<vtkXMLPolyDataReader>::New(); reader->SetFileName(inputFileName.c_str()); reader->Update(); vtkSmartPointer<vtkPLYWriter> writer = vtkSmartPointer<vtkPLYWriter>::New(); writer->SetFileName(outputFileName.c_str()); writer->SetInputConnection(reader->GetOutputPort()); writer->Update(); return EXIT_SUCCESS; }
CMakeLists.txt¶
cmake_minimum_required(VERSION 2.8) PROJECT(ConvertFile) find_package(VTK REQUIRED) include(${VTK_USE_FILE}) add_executable(ConvertFile MACOSX_BUNDLE ConvertFile.cxx) target_link_libraries(ConvertFile ${VTK_LIBRARIES})
Download and Build ConvertFile¶
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 Some tarballs may be missing or out-of-date.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 ConvertFile and its CMakeLists.txt file. Once the tarball ConvertFile.tar has been downloaded and extracted,
cd ConvertFile/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:
./ConvertFile
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.