Change image after mouse over?

2011 7 22
1 个回答
回答已采纳
3 次查看（30 天）

0 个投票

I have a GUI set up at the moment with one component being an axes that is holding an image. What I want is when the user mouses over the axes/image the image changes to something else.
How would I go about doing something like this using the WindowButtonMotionFcn?
First I am not sure how I make this function work with an axes, and second I do not know where to place it with the code.
All the sources I have read do not use it the in the GUIDE GUI .m file, and instead in their own functions.
In the GUIDE GUI .m there doesn't seem to be any place to constantly check to see whether or not a mouse over has occurred.

1 个评论
显示 -1更早的评论 隐藏 -1更早的评论

Walter Roberson
Walter Roberson 2011-7-23
I am really not fond of having someone delete their previous question after I have answered it -- and all their prior questions too.
I am sitting this one out, as I have no interest in putting even more time in to a solution that will probably just be deleted anyhow.

请先登录，再进行评论。

请先登录，再回答此问题。

 采纳的回答

Chirag Gupta
Chirag Gupta 2011-7-22

0 个投票

You cannot have WindowsButtonMotionFcn for the axes, but you can have it for the figure. Just select the GUI figure, right click-> view Callbacks and choose WindowsButtonMotionFcn. This should create one for you in the MATLAB file.
I had sample code in there as:
function figure1_WindowButtonMotionFcn(hObject, eventdata, handles)
% hObject handle to figure1 (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles structure with handles and user data (see GUIDATA)
[posx, posy ]= get(hObject,'CurrentPoint');
% Write your code to Check to see if the mouse is over the axes
if (checkoveraxes...)
plot(handles.axes1,rand(10)); % Change image, here i'm just plotting
end

2 个评论
显示 无 隐藏 无

Colin
Colin 2011-7-22
>% Write your code to Check to see if the mouse is over the axes
>if (checkoveraxes...)
> plot(handles.axes1,rand(10)); % Change image, here i'm just >plotting
>end
Ok so this part is something I write. So far Posx and Poy are tracking where the mouse is... then I would say.. if Posx and Poy are within 'such and such' bounds (AKA where axes is) then do plot (or in my case change figure).
Colin
Colin 2011-7-22
Ok I have this so far
function figure1_WindowButtonMotionFcn(hObject, eventdata, handles)
% hObject handle to figure1 (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles structure with handles and user data (see GUIDATA)
[posx, posy ] = get(hObject,'CurrentPoint');
%Display to check to see if the position is working
posx = num2str(posx);
posy = num2str(posy);
set(handles.Xpos,'String',posx);
set(handles.Tpos,'String',posy);
%If mouse over then update the immage
if (295 > posx > 169 && 122 > posy > 71)
axes(handles.axes1);
imshow('exp.png')
end
But the display isn't even updating

请先登录，再进行评论。

更多回答（0 个）

类别

在 帮助中心 和 File Exchange 中查找有关 Lighting, Transparency, and Shading 的更多信息

标签

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by