实现水波纹的效果，通过粒子系统在坐标轴方向的改变实现预期的效果-Realize the effect of water ripple through particle system in Euclidean space.a change of direction achieve the desired effect

利用欧氏距离计算三维模型的中轴，希望对大家有用！-Medial Axis (MA), also known as Centres of Maximal Disks, is a useful representation of a shape for image descr iption and analysis. MA can be computed on a distance transform, where each point is labelled to its distance t

Calculating a target and ocean echo power spectral density, Signal dimension estimates, Calculation of the Euclidean distance between the two matrices.