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| 一种改进的图斑合并算法 | |
| 引用本文： | 翁杰,郭庆胜,王晓妍,刘鹏.一种改进的图斑合并算法[J].武汉大学学报(信息科学版),2012,37(9):1116-1119. |
| 作者姓名： | 翁杰 郭庆胜 王晓妍 刘鹏 |
| 作者单位： | 1. 武汉大学资源与环境科学学院,武汉市珞喻路129号,430079 2. 武汉大学资源与环境科学学院,武汉市珞喻路129号430079 武汉大学测绘遥感信息工程国家重点实验室,武汉市珞喻路129号430079 3. 燕山大学信息科学与工程学院,秦皇岛市河北大街西段438号,066004 |
| 基金项目： | 国家自然科学基金资助项目 |
| 摘 要： | 从计算几何的角度提出了一种改进的图斑合并(聚合和融合)方法。图斑聚合采用缓冲区合并的思想,可以有效地合并"桥梁"区域,并保持图斑的自然弯曲形态;图斑融合通过骨架线剖分小图斑,以共享边和地类为共同作用因子,将小图斑逐个合并到原始图斑的拓扑相邻图斑中。此算法有效地维持了图斑边界的自然弯曲,并顾及了图上显示地类的父类整体变化情况。 |
| 关 键 词： | 地图综合 图斑合并 缓冲区 骨架线 |
An Improved Algorithm for Combination of Land-Use Data |
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| WENG Jie,GUO Qingsheng,WANG Xiaoyan,LIU Peng.An Improved Algorithm for Combination of Land-Use Data[J].Geomatics and Information Science of Wuhan University,2012,37(9):1116-1119. | |
| Authors: | WENG Jie GUO Qingsheng WANG Xiaoyan LIU Peng |
| Institution: | 1(1 School of Resource and Environmental Science,Wuhan University,129 Luoyu Road,Wuhan 430079,China)(2 Key Laboratory of Geography Information System,Ministry of Education,Wuhan University, 129 Luoyu Road,Wuhan 430079,China)(3 Institute of Information Science and Technology,Yanshan University,438 West Hebei Street,Qinhuangdao 066004,China) |
| Abstract: | We propose an improved algorithm of combination(aggregation and amalgamation) of parcels on the point of computational geometry.Aggregation is done with the concept of buffer,by which the so-called bridge can be merged efficiently,while amalgamation is done using skeleton.The process of amalgamation is influenced by both the curves shared by parcels and the types of the parcels.After being splitted by skeleton,the chosen parcel derives a set of polygons to be combined by the neighbor parcels one by one.This algorithm keeps the natural shape of parcels,and has taken the amount of the father level of shown parcels into account. |
| Keywords: | map generalization combination of parcels buffer skeleton |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |