Path: news.mathworks.com!not-for-mail
From: <HIDDEN>
Newsgroups: comp.soft-sys.matlab
Subject: Re: GUI Current pointer location on displayed image
Date: Sat, 7 Nov 2009 00:34:02 +0000 (UTC)
Organization: Greeneridge Sciences Inc
Lines: 16
Message-ID: <hd2f9q$p6q$1@fred.mathworks.com>
References: <hcvctn$4qa$1@fred.mathworks.com>
Reply-To: <HIDDEN>
NNTP-Posting-Host: webapp-05-blr.mathworks.com
Content-Type: text/plain; charset="ISO-8859-1"
Content-Transfer-Encoding: 8bit
X-Trace: fred.mathworks.com 1257554042 25818 172.30.248.35 (7 Nov 2009 00:34:02 GMT)
X-Complaints-To: news@mathworks.com
NNTP-Posting-Date: Sat, 7 Nov 2009 00:34:02 +0000 (UTC)
X-Newsreader: MATLAB Central Newsreader 2056547
Xref: news.mathworks.com comp.soft-sys.matlab:583162


"Richard " <rjtennant@greeneridge.com> wrote in message <hcvctn$4qa$1@fred.mathworks.com>...
> Ran into a little problem with my GUI program today.  I would like eventually to create lines and boxes on top of a displayed image.  Any help or reference to websites or functions would be much appreciated.
> 
> Here's what I did if you are trying to recreate the problem.  Using guide create an axes tagged as Picture.  Then in the m-editor under the function that executes before figure is made visible, display a jpeg on the axes...
> 
> axes(handles.Picture)
> image(imread('Picture.jpg'))  %loads and displays Picture.jpg
> 
> Now I want to set up a click-able box using ButtonDownFcn or WindowButtonDownFcn(preferably the previous ButtonDownFcn) , WindowMotionFcn and WindowButtonUpFcn.
> 
> I run into a problem with getting my mouse position on the image, 
> "There is no 'CurrentPoint' property in the 'image' class"
> Seems like there should be a way of getting mouse location without ginput for an image because you can do it for a normal plot...
> I'm using 2007b btw

I am pretty new to OOP and GUI programming and after a day more of research, I found a workable solution.  The point was realizing that the image was a child of the figure and the only child in this case, so get(get(gcf,'Children'),'CurrentPoint') gave me the current mouse position.  Hope this helps someone!