Object-oriented programming for graphical modeling on the example of logistics network design

In this paper, we discuss methods and concepts of Object Oriented Programming (OOP) for graphical modeling. We illustrate through a set of examples how geometrical models are built, and visualized solutions to logistics network design problems are obtained. We develop a methodological framework for visual programming and linking of graphical models concepts, and introduce the basic concepts of graphical models: lines, arrows, nodes and coordinates. We use block diagrams and object-oriented programming to program and link the concepts of graphical models using Visual Basic for Excel.