GIS中线要素的定位不确定性模型研究

Modelling Positional Uncertainty of Line Primitives in GIS

摘要: 从概率论的角度构造了矢量GIS中线要素的定位不确定性模型,并根据讨论问题的需要,给出了衡量点、线定位误差的精度指标。这一研究可为GIS产品的质量估计提供有效依据。

Abstract: In this paper,the positional uncertainty models of point and line primitives in GIS are made.On the basis of this,a set of accuracy indicators for point and line features are presented.This gives a theoretical basis for estimating the quality of GIS.