Using graph grammar to implement global layout for a visual programming language generation system
Ke-Bing Zhang, Kang Zhang, Mehmet Ali Orgun · 2001
VisPro is a general-purpose visual language generation system based on Reserved Graph Grammar (RGG). It can express a wide range of diagrammatic visual programming languages (VPLs). This paper presents a global layout approach used in the VisPro system. Our approach is grammar-based graph drawing, in which layout rules are embedded in the productions of RGG. Thus, the RGG formalism serves both the visual language grammar and the layout grammar. This approach is appropriate and feasible enough for graph drawing in the area of visual programming languages based on reserved graph grammars.