FrenetSerretFrameDemo
VTKExamples/Cxx/Remote/FrenetSerretFrameDemo
Description¶
This example illustrates how to control a pipeline inside a callback.
Warning
This example requires the remote module ''SplineDrivenImageSampler.''
Check to see if the file ''SplineDrivenImageSlicer.remote.cmake'' exists in VTK/Remote. If it does not, copy this file to ''VTK/Remote/SplineDrivenImageSlicer.remote.cmake''.
Next
-
reconfigure with cmake.
-
Then enable the module setting ''Module_SplineDrivenImageSlicer:BOOL=ON''
-
make
The classes used in this example are described in A Spline-Driven Image Slicer. In the example, the normal vectors are yellow, the tangent vectors are red and the binormal vectors are green.
Code¶
FrenetSerretFrameDemo.cxx
#include <vtkSplineWidget.h> #include <vtkSmartPointer.h> #include <vtkPointData.h> #include <vtkPolyData.h> #include <vtkGlyph3D.h> #include <vtkArrowSource.h> #include <vtkMaskPoints.h> #include <vtkPolyDataMapper.h> #include <vtkActor.h> #include <vtkProperty.h> #include <vtkRenderWindow.h> #include <vtkRenderer.h> #include <vtkRenderWindowInteractor.h> #include <vtkFrenetSerretFrame.h> #include <vtkCallbackCommand.h> #include <vtkCommand.h> static void MakeGlyphs(vtkPolyData *src, double size, vtkGlyph3D *glyph); struct Pipeline { vtkFrenetSerretFrame *frame; vtkGlyph3D *glyph3DNormals; vtkGlyph3D *glyph3DTangents; vtkGlyph3D *glyph3DBinormals; vtkPolyDataMapper *glyph3DNormalsMapper; vtkPolyDataMapper *glyph3DTangentsMapper; vtkPolyDataMapper *glyph3DBinormalsMapper; }; static void SplineCallback(vtkObject *caller, long unsigned int vtkNotUsed(eventId), void *clientData, void *vtkNotUsed(callData)) { vtkSplineWidget *splineWidget = static_cast<vtkSplineWidget *>(caller); vtkSmartPointer<vtkPolyData> polyData = vtkSmartPointer<vtkPolyData>::New(); splineWidget->GetPolyData(polyData.GetPointer()); Pipeline *pipeline = static_cast<Pipeline *>(clientData); pipeline->frame->SetInputData(polyData); vtkSmartPointer<vtkMaskPoints> maskPoints = vtkSmartPointer<vtkMaskPoints>::New(); maskPoints->SetInputConnection(pipeline->frame->GetOutputPort()); maskPoints->SetOnRatio(10); maskPoints->Update(); // for each vector, create a Glyph3D and DeepCopy the output double radius = .1; maskPoints->GetOutput()->GetPointData()->SetActiveVectors("FSNormals"); MakeGlyphs(maskPoints->GetOutput(), radius, pipeline->glyph3DNormals); vtkSmartPointer<vtkPolyData> normalsPolyData = vtkSmartPointer<vtkPolyData>::New(); normalsPolyData->DeepCopy(pipeline->glyph3DNormals->GetOutput()); maskPoints->GetOutput()->GetPointData()->SetActiveVectors("FSTangents"); MakeGlyphs(maskPoints->GetOutput(), radius, pipeline->glyph3DTangents); vtkSmartPointer<vtkPolyData> tangentsPolyData = vtkSmartPointer<vtkPolyData>::New(); tangentsPolyData->DeepCopy(pipeline->glyph3DTangents->GetOutput()); maskPoints->GetOutput()->GetPointData()->SetActiveVectors("FSBinormals"); MakeGlyphs(maskPoints->GetOutput(), radius, pipeline->glyph3DBinormals); vtkSmartPointer<vtkPolyData> binormalsPolyData = vtkSmartPointer<vtkPolyData>::New(); binormalsPolyData->DeepCopy(pipeline->glyph3DBinormals->GetOutput()); pipeline->glyph3DNormalsMapper->SetInputData(normalsPolyData); pipeline->glyph3DTangentsMapper->SetInputData(tangentsPolyData); pipeline->glyph3DBinormalsMapper->SetInputData(binormalsPolyData); } int main(int, char *[]) { // Create the frame vtkSmartPointer<vtkFrenetSerretFrame> frame = vtkSmartPointer<vtkFrenetSerretFrame>::New(); frame->ConsistentNormalsOn(); // Define the glyph3D's vtkSmartPointer<vtkGlyph3D> glyph3DNormals = vtkSmartPointer<vtkGlyph3D>::New(); vtkSmartPointer<vtkGlyph3D> glyph3DTangents = vtkSmartPointer<vtkGlyph3D>::New(); vtkSmartPointer<vtkGlyph3D> glyph3DBinormals = vtkSmartPointer<vtkGlyph3D>::New(); vtkSmartPointer<vtkPolyDataMapper> glyph3DNormalsMapper = vtkSmartPointer<vtkPolyDataMapper>::New(); vtkSmartPointer<vtkPolyDataMapper> glyph3DTangentsMapper = vtkSmartPointer<vtkPolyDataMapper>::New(); vtkSmartPointer<vtkPolyDataMapper> glyph3DBinormalsMapper = vtkSmartPointer<vtkPolyDataMapper>::New(); // Populate the pipeline object Pipeline pipeline; pipeline.glyph3DNormals = glyph3DNormals.GetPointer(); pipeline.glyph3DTangents = glyph3DTangents.GetPointer(); pipeline.glyph3DBinormals = glyph3DBinormals.GetPointer(); pipeline.frame = frame.GetPointer(); pipeline.glyph3DNormalsMapper = glyph3DNormalsMapper.GetPointer(); pipeline.glyph3DTangentsMapper = glyph3DTangentsMapper.GetPointer(); pipeline.glyph3DBinormalsMapper = glyph3DBinormalsMapper.GetPointer(); // Define the actors vtkSmartPointer<vtkActor> glyph3DNormalsActor = vtkSmartPointer<vtkActor>::New(); glyph3DNormalsActor->SetMapper(glyph3DNormalsMapper); glyph3DNormalsActor->GetProperty()->SetColor(0.8900, 0.8100, 0.3400); vtkSmartPointer<vtkActor> glyph3DTangentsActor = vtkSmartPointer<vtkActor>::New(); glyph3DTangentsActor->SetMapper(glyph3DTangentsMapper); glyph3DTangentsActor->GetProperty()->SetColor(1.0000, 0.3882, 0.2784); vtkSmartPointer<vtkActor> glyph3DBinormalsActor = vtkSmartPointer<vtkActor>::New(); glyph3DBinormalsActor->SetMapper(glyph3DBinormalsMapper); glyph3DBinormalsActor->GetProperty()->SetColor(0.1804,0.5451,0.3412); // A renderer and render window vtkSmartPointer<vtkRenderer> renderer = vtkSmartPointer<vtkRenderer>::New(); vtkSmartPointer<vtkRenderWindow> renderWindow = vtkSmartPointer<vtkRenderWindow>::New(); renderWindow->AddRenderer(renderer); // An interactor vtkSmartPointer<vtkRenderWindowInteractor> renderWindowInteractor = vtkSmartPointer<vtkRenderWindowInteractor>::New(); renderWindowInteractor->SetRenderWindow(renderWindow); // The spline widget vtkSmartPointer<vtkSplineWidget> splineWidget = vtkSmartPointer<vtkSplineWidget>::New(); splineWidget->SetInteractor(renderWindowInteractor); // The callback does the work vtkSmartPointer<vtkCallbackCommand> splineCallback = vtkSmartPointer<vtkCallbackCommand>::New(); splineCallback->SetCallback (SplineCallback); splineCallback->SetClientData(&pipeline); splineWidget->AddObserver(vtkCommand::StartInteractionEvent,splineCallback); splineWidget->AddObserver(vtkCommand::InteractionEvent,splineCallback); splineWidget->AddObserver(vtkCommand::EndInteractionEvent,splineCallback); // Add the actors renderer->AddActor(glyph3DNormalsActor); renderer->AddActor(glyph3DTangentsActor); renderer->AddActor(glyph3DBinormalsActor); renderWindowInteractor->Initialize(); renderWindow->Render(); // Prime the pipeline splineWidget->SetHandlePosition(2, 0, .5, 0); splineWidget->On(); SplineCallback(splineWidget, 0, &pipeline, 0); renderWindow->Render(); renderer->ResetCamera(); renderer->SetBackground(.4, .5, .7); renderWindowInteractor->Start(); return EXIT_SUCCESS; } void MakeGlyphs(vtkPolyData *src, double size, vtkGlyph3D *glyph) { // Source for the glyph filter vtkSmartPointer<vtkArrowSource> arrow = vtkSmartPointer<vtkArrowSource>::New(); arrow->SetTipResolution(16); arrow->SetTipLength(.3); arrow->SetTipRadius(.1); glyph->SetSourceConnection(arrow->GetOutputPort()); glyph->SetInputData(src); glyph->SetVectorModeToUseVector(); glyph->SetScaleModeToScaleByVector(); glyph->SetScaleFactor(size); glyph->OrientOn(); glyph->Update(); }
CMakeLists.txt¶
cmake_minimum_required(VERSION 2.8) PROJECT(FrenetSerretFrameDemo) find_package(VTK REQUIRED) include(${VTK_USE_FILE}) add_executable(FrenetSerretFrameDemo MACOSX_BUNDLE FrenetSerretFrameDemo.cxx) target_link_libraries(FrenetSerretFrameDemo ${VTK_LIBRARIES})
Download and Build FrenetSerretFrameDemo¶
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 FrenetSerretFrameDemo and its CMakeLists.txt file. Once the tarball FrenetSerretFrameDemo.tar has been downloaded and extracted,
cd FrenetSerretFrameDemo/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:
./FrenetSerretFrameDemo
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.