File: Sfgrayplot.man

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.TH Sfgrayplot 2 "April 1993" "Scilab Group" "Scilab Function"
.so ../sci.an
.SH NAME
Sfgrayplot - smooth 2D plot of a surface defined by a function using colors
.SH CALLING SEQUENCE
.nf
Sfgrayplot(x,y,f,[strf,rect,nax])
.fi
.SH DESCRIPTION
\fVSfgrayplot\fR is the same as \fVfgrayplot\fR but the plot is smoothed.
The function \fVfec\fR is used for smoothing.
The surface is plotted assuming that it is linear on a set of
triangles built from the grid:
.nf
    ______ 
    | /| /| 
    |/_|/_|  
    | /| /|
    |/_|/_|
.fi

Enter the command \fVSfgrayplot()\fR to see a demo.
.SH EXAMPLE 
.nf
t=-1:0.1:1;
deff("[z]=surf(x,y)","z=x**2+y**2")
Sfgrayplot(t,t,surf,"111",[-2,-2,2,2])
.fi 
.SH SEE ALSO
fec, fgrayplot, grayplot, Sgrayplot
.SH AUTHOR
J.Ph.C.