线图形简化与移位算子的协同方法
在地图综合过程中,线的图形简化和移位算子通常是分别执行的,图形简化和移位有时都会产生新的空间冲突。本文试图把这两种算子进行协同,避免在地图综合过程中进行空间冲突的多次探测,提高地图综合数据处理的效率。本文通过把线图形简化转换为线上的点移位,并构建邻近地图目标之间的移位传播路径,在考虑空间上下文关系和地图感受规则的前提下,使移位过程能考虑到线图形简化,并尽量保持有关地图目标的空间特征。最后,以道路和其周边的建筑物群为例,验证了该算法的有效性和可行性。...
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| Published in | 测绘学报 Vol. 45; no. 7; pp. 850 - 857 |
|---|---|
| Main Author | |
| Format | Journal Article |
| Language | Chinese |
| Published |
武汉大学资源与环境科学学院，湖北 武汉 430079
2016
武汉大学测绘遥感信息工程国家重点实验室，湖北 武汉 430079%武汉大学资源与环境科学学院,湖北 武汉,430079%武汉市测绘研究院,湖北 武汉,430022%南京师范大学地理科学学院,江苏 南京,210023 |
| Subjects | |
| Online Access | Get full text |
| ISSN | 1001-1595 |
| DOI | 10.11947/j.AGCS.2016.20150513 |
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| Abstract | 在地图综合过程中,线的图形简化和移位算子通常是分别执行的,图形简化和移位有时都会产生新的空间冲突。本文试图把这两种算子进行协同,避免在地图综合过程中进行空间冲突的多次探测,提高地图综合数据处理的效率。本文通过把线图形简化转换为线上的点移位,并构建邻近地图目标之间的移位传播路径,在考虑空间上下文关系和地图感受规则的前提下,使移位过程能考虑到线图形简化,并尽量保持有关地图目标的空间特征。最后,以道路和其周边的建筑物群为例,验证了该算法的有效性和可行性。 |
|---|---|
| AbstractList | 在地图综合过程中,线的图形简化和移位算子通常是分别执行的,图形简化和移位有时都会产生新的空间冲突。本文试图把这两种算子进行协同,避免在地图综合过程中进行空间冲突的多次探测,提高地图综合数据处理的效率。本文通过把线图形简化转换为线上的点移位,并构建邻近地图目标之间的移位传播路径,在考虑空间上下文关系和地图感受规则的前提下,使移位过程能考虑到线图形简化,并尽量保持有关地图目标的空间特征。最后,以道路和其周边的建筑物群为例,验证了该算法的有效性和可行性。 P208; 在地图综合过程中，线的图形简化和移位算子通常是分别执行的，图形简化和移位有时都会产生新的空间冲突。本文试图把这两种算子进行协同，避免在地图综合过程中进行空间冲突的多次探测，提高地图综合数据处理的效率。本文通过把线图形简化转换为线上的点移位，并构建邻近地图目标之间的移位传播路径，在考虑空间上下文关系和地图感受规则的前提下，使移位过程能考虑到线图形简化，并尽量保持有关地图目标的空间特征。最后，以道路和其周边的建筑物群为例，验证了该算法的有效性和可行性。 |
| Abstract_FL | Linear graphic simplification and displacement operators are usually performed respectively in map generalization.Both of them may give rise to new conflicts with other map features such as surrounding buildings.In this paper,we attempt to coordinate these two operators to avoid repetitious detection of spatial conflicts,thus enhancing the efficiency of data processing.Linear graphic simplification has been taken into account in the process of displacement by transferring the linear graphic simplification into displacement of points on the line,constructing propagation paths between proximal map objects and considering spatial context and map perception rules.At the same time,the spatial characteristics of map objects are maintained as far as possible.Also,the roads and their surrounding buildings as an example are handled by means of this method,and effectiveness and availability of this method is verified. |
| Author | 郭庆胜 王琳 孙雅庚 周林 龙毅 |
| AuthorAffiliation | 武汉大学资源与环境科学学院,湖北武汉430079 武汉大学测绘遥感信息工程国家重点实验室,湖北武汉430079 武汉市测绘研究院,湖北武汉430022 南京师范大学地理科学学院,江苏南京210023 |
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| Author_FL | LONG Yi SUN Yageng WANG Lin ZHOU Lin GUO Qingsheng |
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| Keywords | displacement operator collaboration 移位算子 协同 buildings roads 图形简化 建筑物群 linear graphic simplification 道路 |
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| Notes | 11-2089/P Linear graphic simplification and displacement operators are usually performed respectively in map generalization.Both of them may give rise to new conflicts with other map features such as surrounding buildings.In this paper,we attempt to coordinate these two operators to avoid repetitious detection of spatial conflicts,thus enhancing the efficiency of data processing.Linear graphic simplification has been taken into account in the process of displacement by transferring the linear graphic simplification into displacement of points on the line,constructing propagation paths between proximal map objects and considering spatial context and map perception rules.At the same time,the spatial characteristics of map objects are maintained as far as possible.Also,the roads and their surrounding buildings as an example are handled by means of this method,and effectiveness and availability of this method is verified. GUO Qingsheng,WANG Lin,SUN Yageng,ZHOU Lin,LONG Yi （1. School of Resource and Environment Scie |
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| Publisher | 武汉大学资源与环境科学学院，湖北 武汉 430079 武汉大学测绘遥感信息工程国家重点实验室，湖北 武汉 430079%武汉大学资源与环境科学学院,湖北 武汉,430079%武汉市测绘研究院,湖北 武汉,430022%南京师范大学地理科学学院,江苏 南京,210023 |
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| Snippet | 在地图综合过程中,线的图形简化和移位算子通常是分别执行的,图形简化和移位有时都会产生新的空间冲突。本文试图把这两种算子进行协同,避免在地图综合过程中进行空间冲突的... P208; 在地图综合过程中，线的图形简化和移位算子通常是分别执行的，图形简化和移位有时都会产生新的空间冲突。本文试图把这两种算子进行协同，避免在地图综合过程中进行空... |
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| SubjectTerms | 协同 图形简化 建筑物群 移位算子 道路 |
| Title | 线图形简化与移位算子的协同方法 |
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