Change axes limits interactively

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Johannes
Johannes on 25 Apr 2017
Commented: Johannes on 27 Apr 2017
Hi everybody,
I would like to change the axes limits of my 2D plots in my GUI interactively. This means that it want to click on one of the axes limits (min/max at x or y), then enter a new limit and finally automatically refresh the plot. In other software (e.g. LabVIEW), this functionality is available by default. However, in MATLAB it seems to require a work-around. I already got the hint to try the 'ButtonDownFcn' callback and the 'CurrentPoint' function. However, right now I am struggling to enter the text. If this would work, it should be straight forward as I could simply execute a set('xLimÄ',...) command with the exact same limit I entered as a text before. Therefore, I'd like to ask if anybody knows how to enter text at the location of the 'CurrentPoint'.
Thank you very much for you help!
Best regards, Johannes
  2 Comments
Johannes
Johannes on 26 Apr 2017
Basically, I want to replicate the behavior of other software such as LABVIEW. I attached a series of screenshots showing the axes manipulation for illustration. I already thought about using a popup (many thanks to Joseph for pointing it out as well) but the procedure in Labview is much more convinient to my opinion.

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Accepted Answer

Joseph Cheng
Joseph Cheng on 25 Apr 2017
you can try something like this, which really depends on how you want the user to input the different limits
function uiexample
% Create a figure and axes
f = figure('Visible','on');
ax = axes('Units','pixels');
plot(peaks)
xlab = xlabel('x');
ylab = ylabel('y');
set(xlab,'ButtonDownFcn',{@updateplot,ax,1})
set(ylab,'ButtonDownFcn',{@updateplot,ax,2})
infotext = 'click on axis labels to enter new limits';
htext = uicontrol('style','text','string',infotext,...
'position',[0 0 5*numel(infotext) 20])
end
function updateplot(hObject,event,axhandle,XorY)
XLim = axhandle.XLim;
YLim = axhandle.YLim;
name='Input for plot limits';
numlines=1;
switch XorY
case 1
prompt={'Enter Xmin:','Enter Xmax:'};
defaultanswer={num2str(XLim(1)),num2str(XLim(2))};
XLim=cell2mat(inputdlg(prompt,name,numlines,defaultanswer));
axhandle.XLim = str2num(XLim)';
case 2
prompt={'Enter Ymin:','Enter Ymax:'};
defaultanswer={num2str(YLim(1)),num2str(YLim(2))};
YLim=cell2mat(inputdlg(prompt,name,numlines,defaultanswer));
axhandle.YLim = str2num(YLim)';
end
end
  3 Comments
Johannes
Johannes on 27 Apr 2017
Thank you very much Joseph. This solvent my problem!

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