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| 內容簡介： |
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本书将地图空间点群作为研究对象，研究了不同类型点群的权重信息计算与表达，提出了基于权重信息的点群综合方法。对于语义信息较为丰富的点群，提出了基于影响范围和影响人群的点群选取方法；对于无法求解其影响范围和影响人群的点群，提出了一种基于网络加权Voronoi图的点群选取方法，在点群选取过程中顾及了相关联道路网的属性信息；对于语义信息匮乏的点群，提出了一种外部轮廓约束下基于Voronoi图的内部点化简方法，顾及了点群几何及拓扑信息的保持。该研究丰富了地图制图综合理论，为地图制图综合及相关领域研究提供了借鉴和支持。
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| 關於作者： |
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禄小敏，工学博士，现任兰州交通大学测绘与地理信息学院讲师，硕士研究生导师。主要从事地图制图综合、空间关系理论与技术的研究与教学。主持/主研国家自然基金青年基金、地区基金及重点项目等多项，近五年在国内外期刊发表论文10余篇，申请国家发明专利多项。
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| 目錄：
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第 1 章绪论 ····················································································.1
1.1 选题背景及研究意义······························································.1
1.2 研究进展·············································································.4
1.2.1 地图综合研究现状·······················································.4
1.2.2 点群综合研究现状·······················································.5
1.3 本书的内容··········································································16
1.4 本书的创新点·······································································16
第2 章点群自动综合相关理论 ····························································18
2.1 尺度的概念··········································································18
2.2 地图制图综合理论·································································19
2.2.1 影响地图制图综合的基本因素·······································19
2.2.2 制图综合的算子··························································21
2.2.3 制图综合的约束··························································23
2.3 点群综合理论·······································································24
2.3.1 点状符号···································································24
2.3.2 点群的描述参数··························································24
2.3.3 点要素的综合操作·······················································26
2.3.4 点群综合的评价体系···················································27
2.4 小结···················································································29
第3 章高现势性点群综合方法 ····························································30
3.1 点群权重衡量因子的选取························································30
3.1.1 点群的影响范围与影响人群··········································30
3.1.2 高现势性数据的获取···················································32
3.2 算法原理与流程····································································34
3.2.1 算法原理···································································34
3.2.2 算法流程···································································34
3.3 点群权重的计算····································································35
3.3.1 影响范围与影响人群数据的获取····································35
3.3.2 影响范围与影响人群数据的处理····································37
3.4 顾及影响范围与影响人群的点群综合方法···································40
3.4.1 点群的信息传输策略···················································40
3.4.2 点群综合过程中约束条件的定义与表达···························41
3.4.3 综合过程中点的删除···················································41
3.5 实验与评价··········································································43
3.5.1 实验·········································································43
3.5.2 算法验证与分析··························································46
3.6 方法总结·············································································48
3.7 小结···················································································49
第4 章顾及道路网属性信息的点群综合方法··········································50
4.1 点群权重衡量因子的选取························································51
4.1.1 网络加权Voronoi 图····················································51
4.1.2 点群权重因子选取·······················································53
4.2 算法原理与流程····································································54
4.2.1 算法原理···································································54
4.2.2 算法流程···································································54
4.3 网络加权Voronoi 图的构建······················································55
4.3.1 改进的PCNN 模型······················································55
4.3.2 改进PCNN 模型支持下的网络加权Voronoi 图构建·············57
4.3.3 网络加权Voronoi 图构建实验与讨论·······························63
4.3.4 基于改进PCNN 的网络加权Voronoi 图构建算法总结··········66
4.4 点群权重计算·······································································66
4.4.1 网络Voronoi 多边形····················································66
4.4.2 点群权重计算·····························································68
4.5 基于网络加权Voronoi 图的点群综合方法····································69
4.5.1 点群综合中各类信息的保持策略····································69
4.5.2 约束条件的定义与表达·········································
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