CopyAllArrays
VTKExamples/Cxx/PolyData/CopyAllArrays
Code¶
CopyAllArrays.cxx
#include <vtkSmartPointer.h> #include <vtkSphereSource.h> #include <vtkPolyData.h> #include <vtkPointData.h> #include <vtkFloatArray.h> #include <vtkDoubleArray.h> #include <vtkIntArray.h> void ManualMethod(vtkPolyData* input); void AutomaticMethod(vtkPolyData* input); int main(int, char *[]) { vtkSmartPointer<vtkSphereSource> sphereSource = vtkSmartPointer<vtkSphereSource>::New(); sphereSource->Update(); vtkPolyData* polydata = sphereSource->GetOutput(); vtkSmartPointer<vtkDoubleArray> doubles = vtkSmartPointer<vtkDoubleArray>::New(); doubles->SetName("Doubles"); doubles->SetNumberOfTuples(polydata->GetNumberOfPoints()); polydata->GetPointData()->AddArray(doubles); vtkSmartPointer<vtkIntArray> ints = vtkSmartPointer<vtkIntArray>::New(); ints->SetName("Ints"); ints->SetNumberOfTuples(polydata->GetNumberOfPoints()); polydata->GetPointData()->AddArray(ints); ManualMethod(polydata); AutomaticMethod(polydata); return EXIT_SUCCESS; } void ManualMethod(vtkPolyData* input) { unsigned int numberOfArrays = input->GetPointData()->GetNumberOfArrays(); std::cout << "There are " << numberOfArrays << " arrays." << std::endl; vtkSmartPointer<vtkPolyData> newPolyData = vtkSmartPointer<vtkPolyData>::New(); for(unsigned int i = 0; i < numberOfArrays; i++) { std::cout << "array " << i << ":" << std::endl; std::cout << "name: " << input->GetPointData()->GetArrayName(i) << std::endl; std::cout << "type: " << input->GetPointData()->GetArray(i)->GetDataType() << std::endl; std::cout << std::endl; newPolyData->GetPointData()->AddArray(input->GetPointData()->GetArray(i)); } std::cout << "new polydata: " << std::endl; for(unsigned int i = 0; i < numberOfArrays; i++) { std::cout << "array " << i << ":" << std::endl; std::cout << "name: " << newPolyData->GetPointData()->GetArrayName(i) << std::endl; std::cout << "type: " << newPolyData->GetPointData()->GetArray(i)->GetDataType() << std::endl; std::cout << std::endl; } } void AutomaticMethod(vtkPolyData* input) { unsigned int numberOfArrays = input->GetPointData()->GetNumberOfArrays(); std::cout << "There are " << numberOfArrays << " arrays." << std::endl; vtkSmartPointer<vtkPolyData> newPolyData = vtkSmartPointer<vtkPolyData>::New(); newPolyData->GetPointData()->PassData(input->GetPointData()); for(unsigned int i = 0; i < numberOfArrays; i++) { std::cout << "array " << i << ":" << std::endl; std::cout << "name: " << input->GetPointData()->GetArrayName(i) << std::endl; std::cout << "type: " << input->GetPointData()->GetArray(i)->GetDataType() << std::endl; std::cout << std::endl; } std::cout << "new polydata: " << std::endl; for(unsigned int i = 0; i < numberOfArrays; i++) { std::cout << "array " << i << ":" << std::endl; std::cout << "name: " << newPolyData->GetPointData()->GetArrayName(i) << std::endl; std::cout << "type: " << newPolyData->GetPointData()->GetArray(i)->GetDataType() << std::endl; std::cout << std::endl; } }
CMakeLists.txt¶
cmake_minimum_required(VERSION 2.8) PROJECT(CopyAllArrays) find_package(VTK REQUIRED) include(${VTK_USE_FILE}) add_executable(CopyAllArrays MACOSX_BUNDLE CopyAllArrays.cxx) target_link_libraries(CopyAllArrays ${VTK_LIBRARIES})
Download and Build CopyAllArrays¶
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 CopyAllArrays and its CMakeLists.txt file. Once the tarball CopyAllArrays.tar has been downloaded and extracted,
cd CopyAllArrays/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:
./CopyAllArrays
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.