How to plot to axes instead of figure?

hello everyone. i'm using this function:

http://www.mathworks.com/matlabcentral/fileexchange/1017-plotyyy

but i don't know how to plot to axes in gui instead of a figure. Do you have any suggestions to modify that function to apply to an axes?

Answer 1

[Image Analyst]

A GUI is a figure. That picture looks like an axes on a figure. So nothing needs to be modified.

[Daniele Morello]

if i use plotyyy function, every time, my data has plotted in a new figure because i can't (i don't know) specify that i want use "axes".

[Image Analyst]

If you want to plot to an existing axes that you specify, and that function is opening up a new figure, then you'll have to find where it calls "figure" in the source code and comment it out. Then it will plot to the current axes, which you can specify with the axes command:

axes(handles.myAxes1);
plotyyy(.......

[Daniele Morello]

i tried to do something like that, but maybe (sure) i don't know how to do it.

the function is the following:

function [ax,hlines] = plotyyy(x1,y1,x2,y2,x3,y3,ylabels)
%PLOTYYY - Extends plotyy to include a third y-axis
%
%Syntax:  [ax,hlines] = plotyyy(x1,y1,x2,y2,x3,y3,ylabels)
%
%Inputs: x1,y1 are the xdata and ydata for the first axes' line
%        x2,y2 are the xdata and ydata for the second axes' line
%        x3,y3 are the xdata and ydata for the third axes' line
%        ylabels is a 3x1 cell array containing the ylabel strings
%
%Outputs: ax -     3x1 double array containing the axes' handles
%         hlines - 3x1 double array containing the lines' handles
%
%Example:
%x=0:10; 
%y1=x;  y2=x.^2;   y3=x.^3;
%ylabels{1}='First y-label';
%ylabels{2}='Second y-label';
%ylabels{3}='Third y-label';
%[ax,hlines] = plotyyy(x,y1,x,y2,x,y3,ylabels);
%legend(hlines, 'y = x','y = x^2','y = x^3',2)
%
%m-files required: none

%Author: Denis Gilbert, Ph.D., physical oceanography
%Maurice Lamontagne Institute
%Dept. of Fisheries and Oceans Canada
%email: [e-mail]  
%Web: http://www.qc.dfo-mpo.gc.ca/iml/
%April 2000; Last revision: 14-Nov-2001

if nargin==6
   %Use empty strings for the ylabels
   ylabels{1}=' '; ylabels{2}=' '; ylabels{3}=' ';
elseif nargin > 7
   error('Too many input arguments')
elseif nargin < 6
   error('Not enough input arguments')
end

figure('units','normalized',...
       'DefaultAxesXMinorTick','on','DefaultAxesYminorTick','on'); 

%Plot the first two lines with plotyy
[ax,hlines(1),hlines(2)] = plotyy(x1,y1,x2,y2);
cfig = get(gcf,'color');
pos = [0.1  0.1  0.7  0.8];
offset = pos(3)/5.5;

%Reduce width of the two axes generated by plotyy 
pos(3) = pos(3) - offset/2;
set(ax,'position',pos);  

%Determine the position of the third axes
pos3=[pos(1) pos(2) pos(3)+offset pos(4)];

%Determine the proper x-limits for the third axes
limx1=get(ax(1),'xlim');
limx3=[limx1(1)   limx1(1) + 1.2*(limx1(2)-limx1(1))];
%Bug fix 14 Nov-2001: the 1.2 scale factor in the line above
%was contributed by Mariano Garcia (BorgWarner Morse TEC Inc)

ax(3)=axes('Position',pos3,'box','off',...
   'Color','none','XColor','k','YColor','r',...   
   'xtick',[],'xlim',limx3,'yaxislocation','right');

hlines(3) = line(x3,y3,'Color','r','Parent',ax(3));
limy3=get(ax(3),'YLim');

%Hide unwanted portion of the x-axis line that lies
%between the end of the second and third axes
line([limx1(2) limx3(2)],[limy3(1) limy3(1)],...
   'Color',cfig,'Parent',ax(3),'Clipping','off');
axes(ax(2))

%Label all three y-axes
set(get(ax(1),'ylabel'),'string',ylabels{1})
set(get(ax(2),'ylabel'),'string',ylabels{2})
set(get(ax(3),'ylabel'),'string',ylabels{3})

i found "figure". i should substitute that with axes? Can you help me? I need to "say" to this function to use an axes. It's very important for me

[Image Analyst]

I didn't say that. I said to comment out the figure call. Then, before you even call this function at all, specify your axes with axes(). This may not be necessary if all you have is one single axes.

[Daniele Morello]

sorry, i'm new in Matlab, and i really don't know how to do. I'm really sorry.

i tried in this way:

axes(handles.axes2);
[ax,hlines] = plotyyy(x,y,x,y2,x,y3);

but still doesn't work. Can you make me some examples?

[Image Analyst]

Are you saying it still executes the figure function to create an additional brand new figure even though that line is commented out?!? That would be strange.

[Daniele Morello]

a new figure is opened everytime and nothing is plotted to axes.