Update image in axes (GUI) after imfreehand

Hi,

I have an open imfreehand pushbutton that shows the current image in an axes (within a GUI)

As I add some graphics using the imfreehand, how can I update the image in the axes after closing the imfreehand (after hitting the X, it does not have exit in the File menu)?

Code:

function freeHandButton_Callback(hObject, eventdata, handles)
% hObject    handle to freeHandButton (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
I = getappdata(handles.imageAxes , 'yourVariable');
figure, imshow(I);

Thanks

Answer 1

[Image Analyst]

I'm not sure what you mean by update. You can call drawnow if you want, or call plot() to plot the coordinates that you drew over the image.

[Lluis Roca]

I mean that the graphics added (e.g., lines, arrows) will be shown in the GUI axes after closing the imfreehand. Something like refresh the axes to include the new additions?

[Image Analyst]

imfreehand() does not add such graphics. Are you saying that some existed before you called it and calling imfreehand() deleted them?

[Lluis Roca]

Yep, you were right. I mean how to update the image in the axes figure after calling figure and adding graphics (e.g., lines, arrows).

Thanks

[Image Analyst]

If it blew them away, you will probably have to redraw them. Or maybe there's some way to protect them with the hittest property - I don't know. Maybe call tech support and ask.