ParametricSpline
VTKExamples/Cxx/PolyData/ParametricSpline
Code¶
ParametricSpline.cxx
#include <vtkSmartPointer.h> #include <vtkCellArray.h> #include <vtkCellData.h> #include <vtkDoubleArray.h> #include <vtkPoints.h> #include <vtkParametricSpline.h> #include <vtkPolyData.h> #include <vtkPolyDataMapper.h> #include <vtkActor.h> #include <vtkRenderWindow.h> #include <vtkRenderer.h> #include <vtkRenderWindowInteractor.h> #include <vtkParametricFunctionSource.h> int main(int, char *[]) { // Create three points. We will join (Origin and P0) with a red line and (Origin and P1) with a green line double origin[3] = {0.0, 0.0, 0.0}; double p0[3] = {1.0, 0.0, 0.0}; double p1[3] = {0.0, 1.0, 0.0}; double p2[3] = {0.0, 1.0, 2.0}; double p3[3] = {1.0, 2.0, 3.0}; // Create a vtkPoints object and store the points in it vtkSmartPointer<vtkPoints> points = vtkSmartPointer<vtkPoints>::New(); points->InsertNextPoint(origin); points->InsertNextPoint(p0); points->InsertNextPoint(p1); points->InsertNextPoint(p2); points->InsertNextPoint(p3); vtkSmartPointer<vtkParametricSpline> spline = vtkSmartPointer<vtkParametricSpline>::New(); spline->SetPoints(points); vtkSmartPointer<vtkParametricFunctionSource> functionSource = vtkSmartPointer<vtkParametricFunctionSource>::New(); functionSource->SetParametricFunction(spline); functionSource->Update(); // Setup actor and mapper vtkSmartPointer<vtkPolyDataMapper> mapper = vtkSmartPointer<vtkPolyDataMapper>::New(); mapper->SetInputConnection(functionSource->GetOutputPort()); vtkSmartPointer<vtkActor> actor = vtkSmartPointer<vtkActor>::New(); actor->SetMapper(mapper); // Setup render window, renderer, and interactor vtkSmartPointer<vtkRenderer> renderer = vtkSmartPointer<vtkRenderer>::New(); vtkSmartPointer<vtkRenderWindow> renderWindow = vtkSmartPointer<vtkRenderWindow>::New(); renderWindow->AddRenderer(renderer); vtkSmartPointer<vtkRenderWindowInteractor> renderWindowInteractor = vtkSmartPointer<vtkRenderWindowInteractor>::New(); renderWindowInteractor->SetRenderWindow(renderWindow); renderer->AddActor(actor); renderWindow->Render(); renderWindowInteractor->Start(); return EXIT_SUCCESS; }
CMakeLists.txt¶
cmake_minimum_required(VERSION 2.8) PROJECT(ParametricSpline) find_package(VTK REQUIRED) include(${VTK_USE_FILE}) add_executable(ParametricSpline MACOSX_BUNDLE ParametricSpline.cxx) target_link_libraries(ParametricSpline ${VTK_LIBRARIES})
Download and Build ParametricSpline¶
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 ParametricSpline and its CMakeLists.txt file. Once the tarball ParametricSpline.tar has been downloaded and extracted,
cd ParametricSpline/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:
./ParametricSpline
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.