Introduction

In this unit, the graph which is been carried along by GroIMP and which contains all actual information about the structure of the model, and the possibility to visualize this graph in a 2-dimensional layout, will be explained. It will be shown how to select single objects (nodes) and how to redraw the graph after the application of the growth grammar.

The units about model objects and object attributes (Units 10-12) should be known to understand the next two units and the associated exercises.