Slicer  4.13
Slicer is a multi-platform, free and open source software package for visualization and medical image computing

Plots → Base Relation

File in Modules/Loadable/PlotsIncludes file in Base
qSlicerPlotsModule.hQTGUI / qSlicerLoadableModule.h
qSlicerPlotsModuleWidget.hQTGUI / qSlicerAbstractModuleWidget.h
Logic / vtkSlicerPlotsLogic.hLogic / vtkSlicerModuleLogic.h