给出了直角多边形模块自由度的定义和公式，扩展了最小自由度优先原则，使算法能够处理任意直角多边形模块以及有相对约束的模块。
The definition and formula of flexibility of arbitrary rectilinear blocks are introduced and LFF principles are extended to handle arbitrary rectilinear blocks and blocks with relative constraints.
在直角拐角处，也可以设计出多边形的吊柜。
Be in orthogonal turning point, also can design polygonal condole ark.
依据建筑物多边形的图形特点分析了其在地图综合中两类处理模型：化简与直角化。
Based on figure characteristics of building-polygon, two models of simplification and rectangularity of building-polygon in map generalization were presented in the paper.
一凸多边形有七条边，但只有一个角是直角。
A particular convex polygon with seven sides has exactly one right Angle.
一凸多边形有七条边，但只有一个角是直角。
A particular convex polygon with seven sides has exactly one right Angle.
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