Set of Matlab function to study geometrical parameters or channels

This set of functions allows one to compute the radius of curvature of a river in planform for the purpose of making correlations with other geometric parameters of a channel. The code may also be used to compute the width of a channel.本函数集可用于计算平面形态下河道的曲率半径，以开展与河道其他几何参数的相关性分析。该代码亦可用于计算河道宽度。