Linkaxes query and axis scaling

David Robert — Tue, 07 Aug 2012 13:46:56 +0000

Hello - I have a series of 8 subplots. Each of the subplots are surface plots, over an area of 1000 x 1000 with varying intensity. I want to plot them all with the same axis, rather than their own relative ideal axis. So basically, if the highest intensity of any of them was 10^15, I'd want them all to extend to 10^15.

I use code like this;

figure(1)
h1 = subplot(4,2,1)
h1s = surf(P5)
set(h1s, 'edgecolor','none')
h2 = subplot(4,2,2)
h2s = surf(P10)
set(h2s, 'edgecolor','none')
h3 = subplot(4,2,3)
h3s = surf(P15)
set(h3s, 'edgecolor','none')
h4 = subplot(4,2,4)
h4s = surf(P20)
set(h4s, 'edgecolor','none')
h5 = subplot(4,2,5)
h5s = surf(P25)
set(h5s, 'edgecolor','none')
h6 = subplot(4,2,6)
h6s = surf(P30)
set(h6s, 'edgecolor','none')
h7 = subplot(4,2,7)
h7s = surf(P35)
set(h7s, 'edgecolor','none')
h8 = subplot(4,2,8)
h8s = surf(P40)
set(h8s, 'edgecolor','none')
pause(3)
linkaxes([h1 h2 h3 h4 h5 h6 h7 h8],'xy');

However, when I use it, it displays them all as relative only to themselves and produces the error "Warning: linkaxes requires 2-D axes as input. Use linkprop for generic property linking. "

Any ideas on what I may be doing wrong ?

Also, it is possible to have a single colorbar for all the plots, or at least scale them all the same ?

Thanks!

Re: Linkaxes query and axis scaling

Steven_Lord — Tue, 07 Aug 2012 16:51:47 +0000

"David Robert" <grimesd2@gmail.com> wrote in message
news:49d89fa2-7e74-4dc5-901f-143af49ae29c@googlegroups.com...
> Hello - I have a series of 8 subplots. Each of the subplots are surface
> plots, over an area of 1000 x 1000 with varying intensity. I want to plot
> them all with the same axis, rather than their own relative ideal axis. So
> basically, if the highest intensity of any of them was 10^15, I'd want
> them all to extend to 10^15.
>
> I use code like this;
>
> figure(1)
> h1 = subplot(4,2,1)
> h1s = surf(P5)
> set(h1s, 'edgecolor','none')

FYI, you can do those previous two commands in one line.

h1s = surf(P5, 'EdgeColor', 'none');

SURF lets you specify surface property name/value pairs after the data you
want to use to display the surface.

*snip*

> linkaxes([h1 h2 h3 h4 h5 h6 h7 h8],'xy');
>
> However, when I use it, it displays them all as relative only to
> themselves and produces the error "Warning: linkaxes requires 2-D axes as
> input. Use linkprop for generic property linking. "

You're creating surface objects in each of your axes, therefore they're
displaying as 3-D axes. As the warning indicates, LINKAXES is intended for
use with 2-D axes.

http://www.mathworks.com/help/techdoc/ref/linkaxes.html

"Synchronize limits of specified 2-D axes"

As the warning recommends, use LINKPROP to link the 'XLim' and 'YLim'
properties of your 3-D axes instead.

http://www.mathworks.com/help/techdoc/ref/axes_props.html#XLim

> Also, it is possible to have a single colorbar for all the plots, or at
> least scale them all the same ?

Since the colormap is a property of the figure, not of the axes, at least
theoretically yes. It depends on how you want the colorbar to look (in terms
of size and position.) I'd probably make it 'peer' of either h4 or h8 and
set its location to the east and outside of the peer axes.

--
Steve Lord
slord@mathworks.com
To contact Technical Support use the Contact Us link on
http://www.mathworks.com

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