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
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.