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¶
Danger
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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.