am able to zoom only last plot ,how to zoom other plots.please help

Hi i have 3 plots in same figure,when i am zooming only last generated plot is zooming.how to select other plot individually and zoom when all other plots are displayed.here is my code,please help

    x = 0:20;
N = numel(x);
y1 = rand(1,N);
y2 = 5.*rand(1,N)+5;
y3 = 50.*rand(1,N)-50; 
%# Some initial computations:
axesPosition = [110 40 200 200];  %# Axes position, in pixels
yWidth = 30;                      %# y axes spacing, in pixels
xLimit = [min(x) max(x)];         %# Range of x values
xOffset = -yWidth*diff(xLimit)/axesPosition(3); 
%# Create the figure and axes:
figure('Units','pixels','Position',[200 200 330 260]);
h1 = axes('Units','pixels','Position',axesPosition,...
          'Color','w','XColor','k','YColor','r',...
          'XLim',xLimit,'YLim',[0 1],'NextPlot','add');
h2 = axes('Units','pixels','Position',axesPosition+yWidth.*[-1 0 1 0],...
          'Color','none','XColor','k','YColor','m',...
          'XLim',xLimit+[xOffset 0],'YLim',[0 10],...
          'XTick',[],'XTickLabel',[],'NextPlot','add');
h3 = axes('Units','pixels','Position',axesPosition+yWidth.*[-2 0 2 0],...
          'Color','none','XColor','k','YColor','b',...
          'XLim',xLimit+[2*xOffset 0],'YLim',[-50 50],...
          'XTick',[],'XTickLabel',[],'NextPlot','add'); 
xlabel(h1,'time');
ylabel(h3,'values');
%# Plot the data:
plot1=plot(h1,x,y1,'r');
plot2=plot(h2,x,y2,'m');
plot3=plot(h3,x,y3,'b');

Answer 1

[ChristianW]

The function setAllowAxesZoom will do the job. If you add this example to your code, you are zooming in axes h1.

hz = zoom;
setAllowAxesZoom(hz,h1,true)
setAllowAxesZoom(hz,h2,false)
setAllowAxesZoom(hz,h3,false)

If you dont want to change your code all the time you want to zoom, you can create a uicontrol, like this:

hz = zoom;
hax = [h1;h2;h3];
set(gcf,'Toolbar','figure')
uicontrol('Style', 'popup','String', 'red|magenta|blue',...
          'Position',[120 243 50 20],'Callback',{@zoom_opt,hz,hax});

Since the uicontrol calls the zoom_opt function whenever its used, you'll need that function:

function zoom_opt(hObj,event,hz,hax) 
    % Called when user activates popup menu 
    val = get(hObj,'Value');
    W = [0 0 0];
    W(val) = 1;
    for i = 1:3
        setAllowAxesZoom(hz,hax(i),W(i))
    end
    zoom on

[rafi abdul]

thanks for answer.it was working.can you please help me for the same problem how to create checkbox so that when unchecked both plot and corresponding axis should be disappeared.and again when checked both axis and plot should be displayed.thank you.

[ChristianW]

Yes i can.

This topic is about zoom. Create a new one for a different question.

[rafi abdul]

thanks for reply.i have raised one more question can you please help.my question is how to write a code for checkbox .i have provided code also please reply for that question.thanks in advance.

[rafi abdul]

hi when i am zooming in x direction in specific range ,values are changing in x direction for red only ,when i select other tow colours and if i zoom in x direction x values are not getting changed.i want same action(change of values in selected range) for all the colours.how to proceed

[ChristianW]

Delete last line in function zoom_opt. (zoom on)

This will change all axes to the zoomed Xlimits:

set(hz,'ActionPostCallback',{@mypostcallback,hax},'Enable','on');

function mypostcallback(obj,evd,hax)
newLim = get(evd.Axes,'XLim');
set(hax,'XLim',newLim)

Thats how its basicly done. Iam not building in your axes offsets.