李雅彦, 杜清运, 蔡忠亮, 张磊, 张铭晓. 一种采用PostScript成像模型的高质量地图制图方法[J]. 武汉大学学报 ( 信息科学版), 2018, 43(3): 379-384. DOI: 10.13203/j.whugis20150139
引用本文: 李雅彦, 杜清运, 蔡忠亮, 张磊, 张铭晓. 一种采用PostScript成像模型的高质量地图制图方法[J]. 武汉大学学报 ( 信息科学版), 2018, 43(3): 379-384. DOI: 10.13203/j.whugis20150139
LI Yayan, DU Qingyun, CAI Zhongliang, ZHANG Lei, ZHANG Mingxiao. High Quality Cartography with Postscript Imaging Model[J]. Geomatics and Information Science of Wuhan University, 2018, 43(3): 379-384. DOI: 10.13203/j.whugis20150139
Citation: LI Yayan, DU Qingyun, CAI Zhongliang, ZHANG Lei, ZHANG Mingxiao. High Quality Cartography with Postscript Imaging Model[J]. Geomatics and Information Science of Wuhan University, 2018, 43(3): 379-384. DOI: 10.13203/j.whugis20150139

一种采用PostScript成像模型的高质量地图制图方法

High Quality Cartography with Postscript Imaging Model

  • 摘要: 在分析以GIS数据为核心的传统地图制图基础上,针对基于GIS数据制图存在的制图效果不理想、要素冲突等问题,引入PostScript成像模型中的通用图形描述机制,实现对地图符号和制图数据的统一结构描述。设计了基于PostScript语言的高精度符号库,从地图符号结构、制图过程、地图要素冲突处理等方面阐明了利用PostScript成像模型进行地图制图的关键问题。利用PostScript语言研发的系统实践表明该方法能有效提高数字地图制图出版的效率和质量。

     

    Abstract: Problems of poor cartographical quality and feature conflict exist in the traditional GIS data-centered cartography. In this paper, we designed PostScript-based high resolution symbol library for high-quality cartography, in which the common graphical descripting mechanism in PostScript imaging model is applied to describe the map symbols and cartographical data structure. There are two major phases in our method:first, to store the map symbols and map graphics using PostScript path structures and to establish the symbol library; and second, to transfer the PostScript-described symbols to be cartography-oriented ones. Crucial issues of our method are discussed in perspectives of map symbol structure, mapping process and feature conflict. Application shows that our method practically improved efficiency and quality of digital map publishing.

     

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