vtkTrajectorySource 52 modules/viz/src/vtk/vtkTrajectorySource.cpp cv::viz::vtkTrajectorySource::vtkTrajectorySource() { SetNumberOfInputPorts(0); } vtkTrajectorySource 53 modules/viz/src/vtk/vtkTrajectorySource.cpp cv::viz::vtkTrajectorySource::~vtkTrajectorySource() {}