| 数字线划地图建模中所遇问题分析 |
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| 引用本文： | 杨珍,张永志,张文军.数字线划地图建模中所遇问题分析[J].测绘工程,2016,25(5):6-9. |
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| 作者姓名： | 杨珍 张永志 张文军 |
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| 作者单位： | 长安大学 地质工程与测绘学院,陕西 西安,710000;甘肃省测绘地理信息局 地图院,甘肃 兰州,730000 |
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| 基金项目： | 国家自然科学基金资助项目(41374028) |
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| 摘 要： | 数字线划地图建模是从一体化空间数据模型入手,有效地解决一次生产两套数据的难题,实现制图与建库数据的联动,使得空间数据与地图符号在统一框架下管理。文中结合在Geoway软件下的生产实践,对数字线划地图建模中遇到的水系渐变处理、道路实部相交、境界跳绘,面状填充符号4个问题进行研究,并提出模型的改进方法,从而提高空间数据和制图数据的生产效率,增强数据的正确性,使得大批量生产时,人工编辑的工作量减少,自动化的生产效率得到提高。
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| 关 键 词： | 数字线划地图 空间数据 地图符号 Geoway 制图数据 |
On the problems in digital line graphs and map modeling |
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| YANG Zhen,ZHANG Yongzhi,ZHANG Wenjun.On the problems in digital line graphs and map modeling[J].Engineering of Surveying and Mapping,2016,25(5):6-9. |
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| Authors: | YANG Zhen ZHANG Yongzhi ZHANG Wenjun |
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| Abstract: | Started with integrated spatial data model ,DLGM modeling has effectively solved the problem in producing two sets of data at one time and realized the linkage of drawing and library creation data ,thus enabling spatial data and cartographic symbols to be managed under a unified framework .On the basis of the production practice combined with Geoway software ,four problems in DLGM modeling ,namely gradual change processing for water systems ,road intersection ,boundary jump‐drawing and facet filling symbols are researched .Meanwhile ,corresponding improvement methods are also put forward for this model ,thus increasing the production efficiency of spatial data and drawing data and enhancing the correctness of data . As a result ,during the mass‐production ,not only the manual editing workload will be reduced ,but the automated production efficiency will be improved . |
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| Keywords: | digital line graphs and map(DLGM ) spatial data map symbol Geoway drawing data |
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