2D plot of a surface using colors
grayplot(x,y,z,[strf,rect,nax]) grayplot(x,y,z,<opt_args>)
real row vectors of size n1 and n2.
real matrix of size (n1,n2). z(i,j)
is the value
of the surface at the point (x(i),y(j)).
This represents a sequence of statements key1=value1,
key2=value2
,... where key1
,
key2,...
can be one of the following: rect, nax, strf, logflag
or axesflag and frameflag (see plot2d
).
see plot2d
.
grayplot
makes a 2D plot of the surface given by
z
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. If z contains %nan values, the surrounding rectangles are not displayed.
Enter the command grayplot()
to see a demo.
Version | Description |
5.5.0 | Option logflag introduced. |