MATLAB Central Newsreader - Color regions of plot background

Color regions of plot background

David Doria — Fri, 02 May 2008 12:23:03 -0400

Is there a ways to set the color of the plot background over
particular intervals

say i want the background on [0,1] red and [1,2] blue

is this possible?

Thanks,

Dave

Re: Color regions of plot background

roberson@ibd.nrc-cnrc.gc.ca (Walter Roberson) — Fri, 02 May 2008 13:19:43 -0400

In article <fvf137$njj$1@fred.mathworks.com>,
David Doria <daviddoria@gmail.com> wrote:
>Is there a ways to set the color of the plot background over
>particular intervals

>say i want the background on [0,1] red and [1,2] blue

>is this possible?

No. There is only one plot background color.

What you can do, though, is create patch() objects in the areas you
want, and set the patch FaceColor to the color you want, and
set the patch EdgeColor to 'none'. You might have to play
with the patch alpha transparency parameters or the z coordinate of
the patch to get the plot lines to appear "above" the background
colors.
--
  "Ignorance has been our king... he sits unchallenged on the throne of
  Man. His dynasty is age-old. His right to rule is now considered
  legitimate. Past sages have affirmed it. They did nothing to unseat
  him." -- Walter M Miller, Jr

Re: Color regions of plot background

Scott Burnside — Fri, 02 May 2008 16:34:04 -0400

> snip
>
> >is this possible?
>
> No. There is only one plot background color.
>
> snip

Nonsense...

img = zeros(10,10,3);
img(1:5,:,1) = 0;
img(1:5,:,2) = 1;
img(1:5,:,3) = 0;
img(6:10,:,1) = 0;
img(6:10,:,2) = 0;
img(6:10,:,3) = 1;

imagesc(img)
hold on
axis off
x = 1:10;
y = sin(x)+ x;
plot(x,y,'-k','markersize',14);
hold on

Scott