PiecewiseFunction
VTKExamples/Cxx/Utilities/PiecewiseFunction
Code¶
PiecewiseFunction.cxx
#include <vtkSmartPointer.h> #include <vtkPiecewiseFunction.h> int main(int, char *[]) { vtkSmartPointer<vtkPiecewiseFunction> piecewiseFunction = vtkSmartPointer<vtkPiecewiseFunction>::New(); piecewiseFunction->AddPoint(0.0, 0.0); piecewiseFunction->AddPoint(1.0, 2.0); double test = piecewiseFunction->GetValue(0.25); std::cout << "test: " << test << " (should be 0.5)" << std::endl; return EXIT_SUCCESS; }
CMakeLists.txt¶
cmake_minimum_required(VERSION 2.8) PROJECT(PiecewiseFunction) find_package(VTK REQUIRED) include(${VTK_USE_FILE}) add_executable(PiecewiseFunction MACOSX_BUNDLE PiecewiseFunction.cxx) target_link_libraries(PiecewiseFunction ${VTK_LIBRARIES})
Download and Build PiecewiseFunction¶
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 Some tarballs may be missing or out-of-date.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 PiecewiseFunction and its CMakeLists.txt file. Once the tarball PiecewiseFunction.tar has been downloaded and extracted,
cd PiecewiseFunction/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:
./PiecewiseFunction
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.