WarpTo
VTKExamples/Cxx/Filtering/WarpTo
Code¶
WarpTo.cxx
#include <vtkSmartPointer.h> #include <vtkLineSource.h> #include <vtkTubeFilter.h> #include <vtkDataSetMapper.h> #include <vtkRenderWindow.h> #include <vtkRenderWindowInteractor.h> #include <vtkRenderer.h> #include <vtkWarpTo.h> int main(int, char*[]) { // Create the RenderWindow, Renderer and both Actors vtkSmartPointer<vtkRenderer> renderer = vtkSmartPointer<vtkRenderer>::New(); vtkSmartPointer<vtkRenderWindow> renderWindow = vtkSmartPointer<vtkRenderWindow>::New(); renderWindow->AddRenderer(renderer); vtkSmartPointer<vtkRenderWindowInteractor> renderWindowInteractor = vtkSmartPointer<vtkRenderWindowInteractor>::New(); renderWindowInteractor->SetRenderWindow(renderWindow); // Create a line vtkSmartPointer<vtkLineSource> lineSource = vtkSmartPointer<vtkLineSource>::New(); lineSource->SetPoint1(0.0, 0.0, 0.0); lineSource->SetPoint2(0.0, 1.0, 0.0); lineSource->SetResolution(20); lineSource->Update(); // Create a tube (cylinder) around the line vtkSmartPointer<vtkTubeFilter> tubeFilter = vtkSmartPointer<vtkTubeFilter>::New(); tubeFilter->SetInputConnection(lineSource->GetOutputPort()); tubeFilter->SetRadius(.01); //default is .5 tubeFilter->SetNumberOfSides(50); tubeFilter->Update(); vtkSmartPointer<vtkWarpTo> warpTo = vtkSmartPointer<vtkWarpTo>::New(); warpTo->SetInputConnection(tubeFilter->GetOutputPort()); warpTo->SetPosition(10, 1, 0); warpTo->SetScaleFactor(5); warpTo->AbsoluteOn(); vtkSmartPointer<vtkDataSetMapper> mapper = vtkSmartPointer<vtkDataSetMapper>::New(); mapper->SetInputConnection(warpTo->GetOutputPort()); mapper->ScalarVisibilityOff(); vtkSmartPointer<vtkActor> actor = vtkSmartPointer<vtkActor>::New(); actor->SetMapper(mapper); renderer->AddActor(actor); renderWindowInteractor->Initialize(); renderWindowInteractor->Start(); return EXIT_SUCCESS; }
CMakeLists.txt¶
cmake_minimum_required(VERSION 2.8) PROJECT(WarpTo) find_package(VTK REQUIRED) include(${VTK_USE_FILE}) add_executable(WarpTo MACOSX_BUNDLE WarpTo.cxx) target_link_libraries(WarpTo ${VTK_LIBRARIES})
Download and Build WarpTo¶
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 Some tarballs may be missing or out-of-date.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 WarpTo and its CMakeLists.txt file. Once the tarball WarpTo.tar has been downloaded and extracted,
cd WarpTo/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:
./WarpTo
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.