On the base of analyzing the character and structure of the point, line, area symbols, a data structure of map symbol base which serves the symbolized output in digital mapping is put forward.
论述了在数字制图环境下地图输出的特点,在分析了地图上点、线、面符号特征和构造原理的基础上,提出了一种用于数字地图符号化输出的地图符号库数据结构。
On the basis of analyzing the character of subarea load forecasting, a general model is established.
在分析分区预测特点的基础上建立了一个通用模型。
Analyzing the character of the authentication algorithm in the compression field and designing a secure authentication algorithm in the JPEG compression field.
针对互联网上图像传播的需要,分析了压缩域中认证算法所应有的特征,并设计了在JPEG压缩域中的安全认证算法。
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