A new watermarking scheme is proposed in vector data.

给出了一种在矢量数据中水印方案的设计与实现.

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The obvious characteristics of vector data: position obvious, properties connotative.

矢量结构的显著特点: 定位明显, 属性隐含.

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At the same time, the stepless scale oriented information compression of vector data is also discussed.

同时也讨论了面向无级比例尺的矢量数据的信息压缩.

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The thesis discusses a method of vector data compression: subsection Douglas algorithm with the goniometry.

本文提出了一种矢量数据压缩方法: 角度分段道格拉斯算法.

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It is difficult to automatically and accurately extract vector data from thematic map because of annotations.

注记信息的存在使得从专题图自动获取矢量数据具有一定难度.

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At last, a programme algorithm for changing vector data ( plane domain ) into raster data is presented.

最后又提出了一种矢量数据 ( 面域 ) 转换为栅格数据的程序算法.

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Topological data model and entity - oriented model are two kinds of traditional 3 D vector data models.

拓扑关系数据模型和面向实体的数据模型是两种典型的三维矢量数据模型.

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This paper presents a multi - way tree based multi - scale line structure for progressive transmission of vector data.

提出一种基于多叉树的用于矢量数据渐进传输的多分辨率曲线模型.

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