有向软件图自动布局的主流向式算法

MAIN-FLOW-DIRECTION ALGORITHM FOR AUTOMETIC PLACEMENT OF DIRECTIVE SOFTWARE DIAGRAMS

软件图分为有向的和无向的两大类，对于有向软件图，我们选择数据流图作为代表，给出其可读性准则，并建立了其自动布局的主流向式算法，该算法的优点是其生成的有向软件图主流方向明确，易于阅读。

Software diagrams are devided into two types: one is directive, the other is indirective. Data Flow Diagram is selected as representative of directive software diagrams. In this paper, aesthetics adopted in it is given. A placement algorithm that produces clear main--direction data flow diagram is set up. Finally,the automatic placement of diagrams is generally discLlssed.