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fgrayplot Scilab Group Scilab Function fgrayplot
NAME
fgrayplot - 2D plot of a surface defined by a function using colors
CALLING SEQUENCE
fgrayplot(x,y,f,[strf,rect,nax])
fgrayplot(x,y,f,<opt_args>)
PARAMETERS
x,y : real row vectors.
f : external of type y=f(x,y).
<opt_args> : This represents a sequence of statements key1=value1,
key2=value2,... where key1, key2,... can be one of the
following: rect, nax, strf or axesflag and frameflag (see
plot2d).
strf,rect,nax
: see plot2d.
DESCRIPTION
fgrayplot makes a 2D plot of the surface given by z=f(x,y) on a grid
defined by x and y. Each rectangle on the grid is filled with a gray or
color level depending on the average value of z on the corners of the
rectangle. Enter the command fgrayplot() to see a demo.
EXAMPLE
t=-1:0.1:1;
deff("[z]=surf(x,y)","z=x**2+y**2")
fgrayplot(t,t,surf,rect=[-2,-2,2,2])
SEE ALSO
grayplot, plot2d, Sgrayplot, Sfgrayplot
AUTHOR
J.Ph.C.
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