| 基于关系矩阵的复合宽边界区域拓扑关系计算 |
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| 引用本文： | 杜世宏,秦其明,王桥,郭泺. 基于关系矩阵的复合宽边界区域拓扑关系计算[J]. 北京大学学报(自然科学版)网络版(预印本), 2007, 0(2) |
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| 作者姓名： | 杜世宏 秦其明 王桥 郭泺 |
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| 作者单位： | 北京大学遥感与地理信息系统研究所，北京大学遥感与地理信息系统研究所，南京师范大学地理科学学院，中央民族大学生命与环境科学学院 北京，100871，北京，100871，南京，210097，北京，100081 |
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| 基金项目： | 国家自然科学基金(40271090)，中国科学院资源与环境信息系统国家重点实验室开放基金(A0604)资助项目 |
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| 摘 要： | 简单宽边界区域拓扑关系计算比较简单,而复合宽边界区域拓扑关系计算比较复杂,因而需要一个计算方法以实现复合宽边界区域拓扑关系计算、查询和分析处理。在分析复合宽边界区域与简单宽边界区域关系联系的基础上,研究了根据复合宽边界区域中简单宽边界区域拓扑关系矩阵计算复合宽边界区域拓扑关系的方法,并根据复合宽边界区域的性质,简化了算法。计算方法使得扩展九交模型不再是一个概念模型,而是可计算的,从而为查询和分析处理宽边界区域拓扑关系奠定了基础。
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| 关 键 词： | 复合宽边界区域 拓扑关系 扩展九交模型 计算方法 |
The Computation of Topological Relations among Composite Regions with Broad Boundaries Based on Relation Matrix |
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| DU Shihong ),)QIN Qiming )WANG Qiao )GUO Luo ). The Computation of Topological Relations among Composite Regions with Broad Boundaries Based on Relation Matrix[J]. Beijing University(Natural Science)Network Version(Advance Copy), 2007, 0(2) |
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| Authors: | DU Shihong ) )QIN Qiming )WANG Qiao )GUO Luo ) |
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| Affiliation: | DU Shihong 1),4)QIN Qiming 1)WANG Qiao 2)GUO Luo 3) |
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| Abstract: | The topological relations between simple regions with broad boundaries(BBRs)can be modeled by the extended 9-intersection model and be computed out easily,while the relations between composite BBRs are more complex than the relations between simple ones.Therefore,in order to query and analyze topological relations between composite BBRs in computer environment,a computational method is needed.Based on the relation of composite BBRs and their simple BBRs,an approach is proposed to compute the topological relations between composite BBRs from the relations between simple ones.The computation approach makes that the extended 9-intersection is no longer a conceptual model,but a computational model,which is helpful to query and analyze the topological relations between BBRs. |
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| Keywords: | composite regions with broad boundaries topological relations the extended 9-intersection model computation method |
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