【摘要】 针对地图中水系、道路、境界线等线状要素的制图综合中的图形简化问题,利用小波分析的多分辨率分析原理,建立多分辨率小波分析思想和空间数据多尺度表达之间关系,提出了线状要素空间多尺度表达数学模型。对线状要素进行综合和平滑,实现了线状要素的空间多尺度表达。结合实例探讨了数学模型的特点、拓扑一致性和模型拓展等问题。更多还原

【Abstract】 Question of cartographic synthesis about the elements of water systems,roads,b orders and so on,we put forward the math model of curve derivative angle,using the principle of multi-resolution analysis.Based on the model,linear element s have been smoothed and synthetized and finally the linear elements mapping in tegration is realized.Such characteristics of math model as topology consistenc y and necessary resolve questions are discussed.更多还原