| 宗地图专题注记配置算法研究 |
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| 引用本文： | 李铭,沈陈华.宗地图专题注记配置算法研究[J].测绘软科学研究,2010(4):18-21,56. |
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| 作者姓名： | 李铭 沈陈华 |
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| 作者单位： | 南京师范大学虚拟地理环境教育部重点实验室,江苏南京210046 |
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| 基金项目： | 南京师范大学科研启动基金项目（2009105XGQ0123）资助 |
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| 摘 要： | 宗地图是土地调查最重要的成果之一。宗地图专题注记的配置美观程度直接影响着宗地图输出质量。本文从地籍权属要素语义出发,针对宗地图专题注记特点分别提出基于角平分线的界址点点号注记、基于空间位置修正的界址边长注记以及基于等分点的宗地四至注记配置算法。针对界址点点号注记易产生的压盖情况,提出基于近似圆的压盖检测算法。最后通过系统实例验证了本文提出的宗地图专题注记配置算法具有较好的标注效果和较高的运算效率,提高了宗地图注记自动配置智能化程度。
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| 关 键 词： | 宗地图 注记自动配置算法 压盖检测 |
Research on Land Parcel Map Thematic Annotation Placement Algorithm |
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| LI Ming,SHEN Chen-hua.Research on Land Parcel Map Thematic Annotation Placement Algorithm[J].Research on Sofi Science of Surveying and Mapping,2010(4):18-21,56. |
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| Authors: | LI Ming SHEN Chen-hua |
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| Institution: | (Key Laboratory of Virtual Geographical Environment of MOE,Nanjing Normal University,Nanjing 210046,China) |
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| Abstract: | The land parcel map is one of the important products of land investigation.In land parcel map production,the placement of annotation is one of important factors that affect the quality and editing efficiency.Starting from the semantics of cadastral property elements,based on the characters of annotation of land parcel map,the paper discuses the number of boundary points label model based on angle bisector,the length of boundary label model based on spatial relation revising,and the neighbor of land parcel label model based on divide point.And a new Algorithm for point automated placement is put forward which can solve the conflict of overlap between labels,be applied to program more easily and efficiently,and improve the automated effective of land parcel map. |
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| Keywords: | land parcel map label automated placement algorithm overlap checking |
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