软多边形地图要素弯曲识别模型及其应用研究

Bend Identification Model of Soft Polygon and the Application

摘要: 以边界线构成点的坐标单调性变化分析为基础,提出了地图上软多边形要素弯曲识别模型,给定了弯曲的凸凹性定义,建立了弯曲的多种形态量化指标,规范了弯曲邻接关系的形式及确定方法。研究了模型在软多边形地图要素图形综合简化中的应用,形成了简化这类要素图形的三种基本手段。

Abstract: The article proposes the model which can be used to identify the bends of soft polygon,meanwhile,defines the convexity and concavity,systematically constructs morphological index,strictly expresses adjacent relation of the bends,at last,proposes the three kinds of means simplifying the shape of soft polygon.