摘要
本文引入LOD思想,详细论述了在同一比例尺数字地图不同详细程度的分层显示和不同比例尺数字地图嵌套显示中,多尺度地图数据的组织和显示方式。通过运用多比例尺数据切换显示,间接地实现了电子地图的无级缩放。
Based on the method of LOD, this paper gave a detailed description about displaying layers with different details at the same scale. The organization and display method of multi-scale map data for embedded display of digital map at different scales were also discussed in detail. It implemented electronic map′s resizing without limitation indirectly by shifting the display of the multi-scale data.
出处
《北京测绘》
2005年第2期26-29,共4页
Beijing Surveying and Mapping
基金
国家测绘局基金项目
数字地图制图知识工程的研究(1469990324231)
