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A Pattern-based Approach for Initial Diagram Layout

机译:基于模式的初始图布局方法

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In a diagram editor, one can distinguish initial from incremental diagram layout. The former computes a diagram layout from scratch, whereas the latter adjusts an existing layout after diagram modifications.In previous work, we have proposed a pattern-based approach as a solution for incremental diagram layout in visual language editors. Each LP encapsulates certain layout behavior. A diagram's layout is then defined by simultaneously applying several LPs to the diagram. This solution has been designed for an interactive environment where the user may select and alter the layout behavior at runtime. This paper describes an extension of this approach that now supports initial diagram layout, too. While the old version only enabled freehand editing, the extended version now supports diagram import and structured editing as well.
机译:在图编辑器中,可以区分初始图和增量图布局。前者从头开始计算图布局,而后者在图修改后调整现有布局。在以前的工作中,我们提出了一种基于模式的方法作为可视语言编辑器中增量图布局的解决方案。每个LP封装某些布局行为。然后,通过同时将多个LP应用于图来定义图的布局。该解决方案是为交互式环境设计的,用户可以在其中运行时选择和更改布局行为。本文介绍了此方法的扩展,该方法现在也支持初始图布局。虽然旧版本仅支持徒手编辑,但扩展版本现在也支持图表导入和结构化编辑。

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