自适应地图符号模型与原型系统的实现  

A Research for the Model of the Adaptive Map Symbol

作　　者：张金禄[1,2] 王英杰[1] 余卓渊[1] 李洪省[1] 

机构地区：[1]中国科学院地理科学与资源研究所,北京100101 [2]中国科学院研究生院,北京100049

出　　处：《地球信息科学》2009年第4期468-474,共7页Geo-information Science

基　　金：国家自然科学基金项目"基于用户模型的自适应空间信息智能搜索研究"(40671152)

摘　　要：随着计算机技术的进步,地图学中出现了电子地图等新型地图,在内容表达上发生了新的变化,但其地图符号的模型并没有取得相应的研究成果,以适应地图的新形式和新内容。本文对地图符号在地图新形式和新内容表达中存在的问题进行了分析,在自适应空间信息可视化系统理论成果的基础上,总结了自适应地图符号模型设计的原则,提出了树结构的自适应地图符号模型,设计了以树结构符号模型为核心的自适应地图符号系统模块,以及该模块和自适应空间信息可视化系统的其他模块间的接口;引入"晚绑定"的思想,实现了自适应地图符号编辑器原型系统,对树状地图符号模型的符号定义和符号集合图形数据部分进行了研究。With the development of computer technologies, a time began with a crazy burst of electronic maps. The content of electronic maps includes not only the spatial location information, but also various kinds of knowledge acquired by knowledge mining. So the map symbol model should be adjusted to the new forms and new content of e- lectronic maps as the map symbol is the language of maps. This paper summarized the issues of traditional map symbol model, then the principles to design the adaptive map symbol model based on the theories of adaptive geo- visualization system after analyzing the characteristics of a variety of forms and content of map, following which the tree adaptive map symbol model is built. The whole map symbol library is organized following the tree structure, in the nodes of which there is a symbol-collection, and the symbol object includes symbol-description, symbol-defini- tion and geometric data. So the map symbol under the adaptive map has its own properties, not model is designed and the system. At last, an adaptiv that the symbol can adjust symbol model becomes a exhaustive object who only a block of graphics. Then the adaptive map symbol system based on the tree symbol interfaces of this module are designed to other modules of the adaptive geo-visualization e map symbol editor was implemented using the＂late binding＂ method, which realizes its appearances to the feature it expresses. This prototype system implemented the sym- bol-definition and geometric data parts of the tree map symbol model. As the conclusion, the tree map symbol mod- el can be adaptive to new forms and contents of maps.

关 键 词：自适应地图符号 树结构符号模型 自适应地图符号编辑器 

分 类 号：P283.1[天文地球—地图制图学与地理信息工程]