File: Sfgrayplot.cat

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Sfgrayplot         Scilab Group         Scilab Function          Sfgrayplot
NAME
   Sfgrayplot - smooth 2D plot of a surface defined by a function using
  colors
  
CALLING SEQUENCE
 Sfgrayplot(x,y,f,[strf,rect,nax])
DESCRIPTION
   Sfgrayplot is the same as fgrayplot 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 Sfgrayplot() to see a demo.
  
EXAMPLE
 t=-1:0.1:1;
 deff("[z]=surf(x,y)","z=x**2+y**2")
 Sfgrayplot(t,t,surf,"111",[-2,-2,2,2])
SEE ALSO
   fec, fgrayplot, grayplot, Sgrayplot
  
AUTHOR
   J.Ph.C.