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PODrawing circles/squares on an image where the user specifies
 

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  1. PODrawing circles/squares on an image where the user specifies
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    <p>I have a GUI in MATLAB created using <code>guide</code>. So far the user can import an image and save the image. My next step is to allow the user to click on the image to place a circle/square, doesn't matter which, the easier one to implement. Ideally I would like to make it so the latest one created is undoable but the basic implementation is paramount.</p> <p>I'm assuming for the actual drawing of the circle that using PLOT will fine, as mentioned in several other questions. What I'm not sure of is how I would go about getting the location in the image of the mouse click to then place the PLOT at that location. </p> <hr> <p><strong>EDIT:</strong> Here's the main bit of code that I have for the working parts at the moment.</p> <pre><code>function V1Open_Callback(hObject, eventdata, handles) % hObject handle to V1Open (see GCBO) % eventdata reserved - to be defined in a future version of MATLAB % handles structure with handles and user data (see GUIDATA) hMainGui = getappdata(0, 'hMainGui'); fileName = uigetfile('*.jpg'); setappdata(hMainGui, 'fileName', fileName); updateAxes1 function updateAxes1 hMainGui = getappdata(0, 'hMainGui'); fileName = getappdata(hMainGui, 'fileName'); imshow(imread(fileName)) % --- Executes on button press in V1Save. function V1Save_Callback(hObject, eventdata, handles) % hObject handle to V1Save (see GCBO) % eventdata reserved - to be defined in a future version of MATLAB % handles structure with handles and user data (see GUIDATA) imsave; </code></pre>
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