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Please note that the recommended version of Scilab is 2024.1.0. This page might be outdated.
See the recommended documentation of this function
grayplot
2D plot of a surface using colors
Syntax
grayplot(x,y,z,[strf,rect,nax]) grayplot(x,y,z,<opt_args>)
Arguments
- x,y
real row vectors of size n1 and n2.
- z
real matrix of size (n1,n2).
z(i,j)
is the value of the surface at the point (x(i),y(j)).- <opt_args>
This represents a sequence of statements
key1=value1, key2=value2
,... wherekey1
,key2,...
can be one of the following: rect, nax, strf, logflag or axesflag and frameflag (seeplot2d
).- strf,rect,nax
see
plot2d
.
Description
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.
Examples
x=-10:10; y=-10:10; m=rand(21,21); grayplot(x,y,m,rect=[-20,-20,20,20])
See also
- fgrayplot — 2D plot of a surface defined by a function using colors
- plot2d — 2D plot
- Sgrayplot — smooth 2D plot of a surface using colors
- Sfgrayplot — сглаженный двумерный график поверхности, определённой через функцию, с использованием цветов
History
Версия | Описание |
5.5.0 | Option logflag introduced. |
Report an issue | ||
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