摘要
对城市空间数据基础设施数据的尺度和精度进行了研究,分析了衡量城市空间数据尺度的4个指标:比例尺、范围、详尽程度和分辨率,总结了现有测量规范对主要城市空间基础数据的精度要求,论述了不同尺度和精度条件下城市空间基础数据的协调,提出了数字城市空间基础数据的平面精度分级体系,建立了此分级体系与传统测量精度指标及比例尺的对应关系。
This paper discusses the scale and accuracy of urban spatial data infrastructure (USDI) , analyses the four indices for urban spatial data: scale, range, detail and resolution, summaries the accuracy requirement for USDI, analyzes the integration of USDI data with different accuracy. Based on above analysis, a classification scheme of horizontal position accuracy for USDI and the relation between the scheme and the traditional surveying accuracy measurements are proposed.
出处
《地理空间信息》
2006年第2期1-3,共3页
Geospatial Information