surfl — Display 3-D color surface wih lighting
hdl = surf(X,Y,Z,S)
1 by m matrix or n by m matrix
1 by n matrix or n by m matrix
n by m matrix
3 elements vector
Handle of the created Fac3d entity
surfl(x,y,Z,S) plots the surface with default color data computed as the reflectance with respect of a light source whose direction is given by parameter S. The default direction of the light source is [1 1 1].