空间数据采集与处理课件.pptx

空间数据采集与处理;PowerPoint演示文稿;§4.1空间数据的采集;PowerPoint演示文稿;PowerPoint演示文稿;PowerPoint演示文稿;空间数据采集与处理的基本流程;数据采集任务;4.1.2几何图形的数据采;PowerPoint演示文稿;PowerPoint演示文稿;PowerPoint演示文稿;PowerPoint演示文稿;PowerPoint演示文稿;PowerPoint演示文稿;PowerPoint演示文稿;PowerPoint演示文稿;PowerPoint演示文稿;4.1.3属性数据的获取与;PowerPoint演示文稿;PowerPoint演示文稿;PowerPoint演示文稿;PowerPoint演示文稿;PowerPoint演示文稿;PowerPoint演示文稿;PowerPoint演示文稿;PowerPoint演示文稿;PowerPoint演示文稿;PowerPoint演示文稿;PowerPoint演示文稿;PowerPoint演示文稿;PowerPoint演示文稿;PowerPoint演示文稿;PowerPoint演示文稿;PowerPoint演示文稿;PowerPoint演示文稿;PowerPoint演示文稿;PowerPoint演示文稿;PowerPoint演示文稿;PowerPoint演示文稿;PowerPoint演示文稿;PowerPoint演示文稿;PowerPoint演示文稿;PowerPoint演示文稿;PowerPoint演示文稿;PowerPoint演示文稿;PowerPoint演示文稿;PowerPoint演示文稿;PowerPoint演示文稿;PowerPoint演示文稿;PowerPoint演示文稿;PowerPoint演示文稿;PowerPoint演示文稿;PowerPoint演示文稿;PowerPoint演示文稿;PowerPoint演示文稿;PowerPoint演示文稿;Cohen-Sutherlan;Cohen-Sutherlan;Cohen-Sutherlan;Cohen-Sutherlan;PowerPoint演示文稿;PowerPoint演示文稿;PowerPoint演示文稿;线段分类：;Cohen-Sutherlan;中点分割裁剪算法;PowerPoint演示文稿;中点分割裁剪算法;中点分割裁剪算法;多边形裁剪;多边形裁剪;多边形裁剪;多边形的裁剪;多边形逐边裁剪法;多边形逐边裁剪法;PowerPoint演示文稿;PowerPoint演示文稿;多边形窗口的双边的裁剪法;多边形窗口的双边的裁剪法;多边形窗口的双边的裁剪法;例：用双边裁剪法的应用;用双边裁剪法的应用;文本裁剪;文本裁剪;文本裁剪;PowerPoint演示文稿;为什么要研究地图上的拓扑？;PowerPoint演示文稿;拓扑关系是空间数据处理;PowerPoint演示文稿;弧段的组织;结点匹配;检查多边形是否闭合;PowerPoint演示文稿;PowerPoint演示文稿;PowerPoint演示文稿;PowerPoint演示文稿;PowerPoint演示文稿;PowerPoint演示文稿;PowerPoint演示文稿;PowerPoint演示文稿;PowerPoint演示文稿;PowerPoint演示文稿;PowerPoint演示文稿;PowerPoint演示文稿;PowerPoint演示文稿;PowerPoint演示文稿;PowerPoint演示文稿;PowerPoint演示文稿;空间属性表描述要素的一般信息，;定义;PowerPoint演示文稿;1.对象范围索引;PowerPoint演示文稿;实体范围索引;PowerPoint演示文稿;实体范围索引;PowerPoint演示文稿;2.格网索引;PowerPoint演示文稿;PowerPoint演示文稿;检索原理：;PowerPoint演示文稿;PowerPoint演示文稿;PowerPoint演示文稿;PowerPoint演示文稿;PowerPoint演示文稿;3.四叉树索引;PowerPoint演示文稿;PowerPoint演示文稿;PowerPoint演示文稿;PowerPoint演示文稿;4.BSP树索引;PowerPoint演示文稿;PowerPoint演示文稿;R树;PowerPoint演示文稿;PowerPoint演示文稿;PowerPoint演示文稿;原理;PowerPoint演示文稿;PowerPoint演示