矢量GIS平面随机线元误差模型建模机理

基金项目: 国家863计划资助项目(2001AA135081)

详细信息

Modeling Theory to Error Model of Linear Segment in Vector GIS

1 School of Geodesy and Geomatics, Wuhan University, 129 Luoyu Road, Wuhan 430079, China;
2 Hunan Information Center of Land and Resources, 119 Middle Renmin Road, Changsha 410011, China

摘要: 基于随机线元误差分布机理,研究了GIS中平面随机线元位置不确定性误差模型的建模原理,提出了决定误差模型形状的形状因子与误差模型规模的尺度因子的概念与确定方法,结合线元落入其等概率密度误差模型内的概率算法,解决了平面随机线元误差模型的形状与规模。
- GIS /
- 位置不确定性 /
- 误差带模型 /
- 包络线 /
- 可视化
Abstract: The modeling mechanism of the error model of linear segment is proposed in this paper. The concepts of figure gene and scale gene which determine the figure and the scale of error model are presented. A brand-new approach to the theory research of vector GIS positional uncertainty is inaugurated, and the theory and method which can be used for reference are also provided.
- GIS /
- positional uncertainty /
- error-band model /
- envelop /
- visualization