Zooming a portion of figure in a figure.

Dear friends Can any boby will tell the method of zooming only a portion of a particular figure, in figure window. This is mainly required to indicate the detail of a particular segment of a figure. Please reply...

Answer 1

[Kye Taylor]

Below is an example that zooms in on a portion of a curve and displays the zoomed in version in the same figure window without using subplot. Let me know if I can clarify any details. Or, please clarify what you're trying to do.

t = linspace(0,2*pi,1000); % values in time
x = cos(t); % a sinusoid
perturbation = 0.1*exp((-(t-5*pi/4).^2)/.01).*sin(200*t); % a perturbation
signal = x+perturbation; % a signal to plot

% plot signal on new figure
figure,plot(t,x+perturbation)
xlabel('time'),ylabel('signal')

% create a new pair of axes inside current figure
axes('position',[.65 .175 .25 .25])
box on % put box around new pair of axes

indexOfInterest = (t < 11*pi/8) & (t > 9*pi/8); % range of t near perturbation

plot(t(indexOfInterest),signal(indexOfInterest)) % plot on new axes
axis tight

[Cagas Akalin]

Thanks Kate,

It helped a lot. Please keep it go :))

[Ali Uppal]

@ Kye Taylor, so simple and so effective. Its very helpful. Thanks

[Upendra Adhikari]

Thanks it helped me alot.

[Bin Xu]

Thanks, it cures my headache.

[Shaik Ahmad]

How can we do it for dynamic positions, that means if we move the small control box the zoomed portion of that respective position we need to see.

[David Torres]

Thanks it helped me in my thesis

[Brian Yanbo Wang]

THANK YOU SO MUCHH!

[moe moe]

Thanks a lot

[govindan]

thanks you sir

[idrees khan]

how can we do zooming of figues in multiple plots?

[AVINASH PANDEY]

thanku@Kye Taylor

[Cesim Dumlu]

@Kye Taylor Does this work with polarplot ?

[Namhyoung Kim]

This is wonderful! Thanks a lot :D

[Juan Perez Torreglosa]

Hello, Kye Taylor,

Do you know if is it posible to create two zoom boxes? I think that if you use "box on" for the second time it may replace the first one... am I right?

How would you do that?

Thanks in advance.

Answer 2

[Image Analyst]

See attached zooming demo.

[jessupj]

line 51 of that demo:

button = questdlg(message, 'Continue?', 'OK', 'Quit', 'OK');

At that point in the script, it generates a window that spans all available workspace display area obscuring everything in sight, with Ok/Quit buttons beyond the screen edge. How do I contro this behavior?

(it's a cool demo, and thanks for posting it. but i'm not used to doing anything programmatically with the UI)

[Image Analyst]

@jessupj it does not do that for me. Try restarting MATLAB. What happens if you just do this by itself in the command window (not in the zoom script)?

message = 'Click Continue';
button = questdlg(message, 'Continue?', 'OK', 'Quit', 'OK');

[jessupj]

it happens in a fresh workspace/restarted matlab. a larger-than-multi-monitor-desktop dialog box with buttons that appear outside the viewable window is generated.

so i guess this a question about start/env settings. i have the following possibly relevant settings in my startup script:

set(0,'DefaultFigureVisible','on');
set(0,'DefaultFigureColor',[1 1 1]);
set(0,'DefaultFigureUnits','Normalized');
set(0,'DefaultFigurePosition',[ 0.01 0.7  0.45  0.21 ]);

Answer 3

[Catarina Figueira]

What if tou have several 'errobar' graphs in the same figure (using holy on)? how can I define 'indexOfInterest' with more then one 't'?