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
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.