VectorArrayKnownLength
VTKExamples/Cxx/Utilities/VectorArrayKnownLength
Description
This example creates a VTK style float array of vectors. This can be easily interchanged with vtkIntArray, vtkDoubleArray, etc.
Code
VectorArrayKnownLength.cxx
#include <vtkSmartPointer.h>
#include <vtkFloatArray.h>
int main(int, char *[])
{
vtkSmartPointer<vtkFloatArray> distances =
vtkSmartPointer<vtkFloatArray>::New();
distances->SetName("Distances");
distances->SetNumberOfComponents(3);
distances->SetNumberOfTuples(5);
//set values
for(vtkIdType i = 0; i < distances->GetNumberOfTuples(); i++)
{
float tuple[3];
tuple[0] = (float)i + 0.1;
tuple[1] = (float)i + 0.2;
tuple[2] = (float)i + 0.3;
distances->SetTuple(i, tuple);
}
//get values
for(vtkIdType i = 0; i < distances->GetNumberOfTuples(); i++)
{
double d[3];
distances->GetTuple(i, d);
std::cout << d[0] << " " << d[1] << " " << d[2] << std::endl;
}
return EXIT_SUCCESS;
}
CMakeLists.txt
cmake_minimum_required(VERSION 2.8)
PROJECT(VectorArrayKnownLength)
find_package(VTK REQUIRED)
include(${VTK_USE_FILE})
add_executable(VectorArrayKnownLength MACOSX_BUNDLE VectorArrayKnownLength.cxx)
target_link_libraries(VectorArrayKnownLength ${VTK_LIBRARIES})
Download and Build VectorArrayKnownLength
Click here to download VectorArrayKnownLength and its CMakeLists.txt file. Once the tarball VectorArrayKnownLength.tar has been downloaded and extracted,
cd VectorArrayKnownLength/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:
./VectorArrayKnownLength
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.