Scilab Function

Sgrayplot - smooth 2D plot of a surface using colors

### Calling Sequence

  `Sgrayplot(x,y,z,[strf,rect,nax])`

### Description

`Sgrayplot` is the same as `grayplot` but the plot is smoothed. The function `fec` is used for smoothing. The surface is plotted assuming that it is linear on a set of triangles built from the grid:

        ______
        | /| /|
        |/_|/_|
        | /| /|
        |/_|/_|

Enter the command `Sgrayplot()` to see a demo.

### Examples

    x=-10:10; y=-10:10;m =rand(21,21);
    Sgrayplot(x,y,m,"111",[-20,-20,20,20])
    t=-%pi:0.1:%pi; m=sin(t)'*cos(t);
    xbasc()
    Sgrayplot(t,t,m)

### See Also

`fec` `fgrayplot` `grayplot` `Sfgrayplot`

### Author

J.Ph.C.