AttachAttributes
VTKExamples/Cxx/PolyData/AttachAttributes
Code¶
AttachAttributes.cxx
// vtk includes #include <vtkDoubleArray.h> #include <vtkInformation.h> #include <vtkInformationDoubleVectorKey.h> // std includes #include <iostream> int main(int, char *[]) { // create a 2-element array vtkDoubleArray* array = vtkDoubleArray::New(); array->SetName("array"); array->SetNumberOfComponents(1); array->SetNumberOfTuples(2); array->SetValue(0, 1.); array->SetValue(1, 2.); // access the info (presently none stored) vtkInformation* info = array->GetInformation(); // add one attribute, a double vector const char *name = "myKey"; const char *location = "MyClass"; // const int length = 3; vtkInformationDoubleVectorKey *key = new vtkInformationDoubleVectorKey(name, location, length); double values[] = {0.1, 0.2, 0.3}; info->Set(key, values[0], values[1],values[2]); // extract the key double *vals = info->Get(key); std::cout << "extracted values are: " << vals[0] << ", " << vals[1] << ", " << vals[2] << '\n'; array->Delete(); // array->Delete will also delete key (do not call delete key) return EXIT_SUCCESS; }
CMakeLists.txt¶
cmake_minimum_required(VERSION 2.8) PROJECT(AttachAttributes) find_package(VTK REQUIRED) include(${VTK_USE_FILE}) add_executable(AttachAttributes MACOSX_BUNDLE AttachAttributes.cxx) target_link_libraries(AttachAttributes ${VTK_LIBRARIES})
Download and Build AttachAttributes¶
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 Some tarballs may be missing or out-of-date.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 AttachAttributes and its CMakeLists.txt file. Once the tarball AttachAttributes.tar has been downloaded and extracted,
cd AttachAttributes/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:
./AttachAttributes
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.