面要素圆形符号适宜尺寸的确定方法Method of determining optimal circular symbol size
程红霞,李永树,林粤江
摘要(Abstract):
为了解决圆形符号的占位问题,本文提出了用等值二分法求解面要素最大内接圆的圆心和半径。实验证明该方法适合于制图中的任意形状多边形:将面要素最大内接圆的圆心作为其圆形符号的视觉中心,利用断裂点理论,给出了不压盖情况下面要素圆形符号适宜尺寸的计算公式。通过实例分析验证了方法的有效性。
关键词(KeyWords): 圆形符号;最大内接圆;面要素;尺寸
基金项目(Foundation): 新疆气象局青年基金项目(201128)
作者(Author): 程红霞,李永树,林粤江
DOI: 10.16251/j.cnki.1009-2307.2012.05.047
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