Combining with the actuality of highway design, this paper gave a brief talk on the setup of vector digital map in highway design.
结合目前公路设计的现状，浅谈公路设计中数字地图的建立。
This paper discusses the above problems basing on Husuzhe electric map exploring practices, summarizes the design principle and method of common vector digital map on map design.
本文以沪苏浙电子地图的开发实践为基础，对上述问题进行了探讨，并从地图设计的角度总结了通用型矢量电子地图的设计原理与方法。
Based on the difference expansion and difference shifting, a novel reversible watermarking algorithm for digital vector map is proposed.
利用差分平移和差分扩张，提出一种新的应用于数字矢量地图的可逆水印算法。
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