摘要
针对GIS中对曲线位置不确定性分析的要求,提出了一种采用数值方法计算拟合曲线点位误差的算法,给出了确定GIS中任意曲线误差带模型的具体计算步骤与计算公式,并结合实例,绘制了三次样条拟合曲线的误差带。
A practical numerical algorithm for calculating the errors of any point on a curve in GIS is introduced. The main approaches of error band determination of arbitrary curves are given. As an example, the error band model of a cubic spline is calculated.
出处
《武汉测绘科技大学学报》
CSCD
1999年第2期142-144,共3页
Geomatics and Information Science of Wuhan University