Matlab鼠标控制的两个GUI例子（附代码）

zhenghui

相信大家都知道，MATLAB提供了一种非常方便的控制方式，利用ButtonDownFcn并配合Figure对象所提供的WindowButtonDownFcn（控制当鼠标有按键被单击时所执行的操作）、  WindowButtonMotionFcn （ 控制鼠标移动时所执行的操作）、 WindowButtonUpFcn（控制当鼠标被释放时所执行的操作），来完成鼠标控制的工作，下面给大家两个运用这些命令的小例子，以供大家参考！

1.WindowButtonDownFcn

当用户用鼠标在空白处点击时，出现欢迎对话框

1. 
   
2. >> uicontrol(h,'style','text','position',[80,100,100,20],'string','请在空白处单击一下')
   
3. >> h=figure ('color',[1 1 0],'position',[400 300 200 200],...
   
4.         'name','Demo','menu','figure','WindowButtonDownFcn',...
   
5.         'msgbox(''欢迎光临论坛'',''Window Message'',''help'')');
   
6. >> uicontrol(h,'style','text','position',[80,100,100,20],'string',...
   
7. '请任意单击一下')

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2.综合例子---实现画笔功能

程序代码1

1. 
   
2. function mouse(action)
   
3. switch action
   
4. case 'start'
   
5. %当光标移动时 执行'move'的操作?
   
6. set(gcbf,'windowbuttonmotionfcn','mouse move');
   
7. %当光标移动时 执行'stop'的操作?
   
8. set(gcbf,'windowbuttonupfcn','mouse stop');
   
9. case 'move'
   
10. %获得当前鼠标的坐标
    
11. point = get(gca,'CurrentPoint');
    
12. %画出X与Y得坐标值
    
13. line(point(:,1),point(:,2),'clipping','on',...
    
14. 'erasemode','background','marker','o');
    
15. case 'stop' %当鼠标键被释放时，不执行任何操作
    
16. set(gcbf,'windowbuttonmotionfcn','');
    
17. set(gcbf,'windowbuttonupfcn','');
    
18. end

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1. 
   
2. function varargout = matlab(varargin)
   
3. % MATLAB M-file for matlab.fig
   
4. % MATLAB, by itself, creates a new MATLAB or raises the existing
   
5. % singleton*.
   
6. %
   
7. % H = MATLAB returns the handle to a new MATLAB or the handle to
   
8. % the existing singleton*.
   
9. %
   
10. % MATLAB('CALLBACK',hObject,eventData,handles,...) calls the local
    
11. % function named CALLBACK in MATLAB.M with the given input arguments.
    
12. %
    
13. % MATLAB('Property','Value',...) creates a new MATLAB or raises the
    
14. % existing singleton*. Starting from the left, property value pairs are
    
15. % applied to the GUI before painter_OpeningFunction gets called. An
    
16. % unrecognized property name or invalid value makes property application
    
17. % stop. All inputs are passed to matlab_OpeningFcn via varargin.
    
18. %
    
19. % *See GUI Options on GUIDE's Tools menu. Choose "GUI allows only one
    
20. % instance to run (singleton)".
    
21. %
    
22. % See also: GUIDE, GUIDATA, GUIHANDLES
    
23. 
    
24. % Copyright 2002-2003 The MathWorks, Inc.
    
25. 
    
26. % Edit the above text to modify the response to help matlab
    
27. 
    
28. % Last Modified by GUIDE v2.5 03-Oct-2009 17:01:36
    
29. 
    
30. % Begin initialization code - DO NOT EDIT
    
31. gui_Singleton = 1;
    
32. gui_State = struct('gui_Name', mfilename, ...
    
33. 'gui_Singleton', gui_Singleton, ...
    
34. 'gui_OpeningFcn', @matlab_OpeningFcn, ...
    
35. 'gui_OutputFcn', @matlab_OutputFcn, ...
    
36. 'gui_LayoutFcn', [] , ...
    
37. 'gui_Callback', []);
    
38. if nargin && ischar(varargin{1})
    
39. gui_State.gui_Callback = str2func(varargin{1});
    
40. end
    
41. 
    
42. if nargout
    
43. [varargout{1:nargout}] = gui_mainfcn(gui_State, varargin{:});
    
44. else
    
45. gui_mainfcn(gui_State, varargin{:});
    
46. end
    
47. % End initialization code - DO NOT EDIT
    
48. 
    
49. 
    
50. % --- Executes just before matlab is made visible.
    
51. function matlab_OpeningFcn(hObject, eventdata, handles, varargin)
    
52. % This function has no output args, see OutputFcn.
    
53. % hObject handle to figure
    
54. % eventdata reserved - to be defined in a future version of MATLAB
    
55. % handles structure with handles and user data (see GUIDATA)
    
56. % varargin command line arguments to matlab (see VARARGIN)
    
57. 
    
58. % Choose default command line output for matlab
    
59. handles.output = hObject;
    
60. 
    
61. % Update handles structure
    
62. guidata(hObject, handles);
    
63. 
    
64. % UIWAIT makes matlab wait for user response (see UIRESUME)
    
65. % uiwait(handles.figure1);
    
66. 
    
67. 
    
68. % --- Outputs from this function are returned to the command line.
    
69. function varargout = matlab_OutputFcn(hObject, eventdata, handles)
    
70. % varargout cell array for returning output args (see VARARGOUT);
    
71. % hObject handle to figure
    
72. % eventdata reserved - to be defined in a future version of MATLAB
    
73. % handles structure with handles and user data (see GUIDATA)
    
74. 
    
75. % Get default command line output from handles structure
    
76. varargout{1} = handles.output;
    
77. 
    
78. 
    
79. % --- Executes on mouse press over axes background.
    
80. function axes1_ButtonDownFcn(hObject, eventdata, handles)
    
81. % hObject handle to axes1 (see GCBO)
    
82. % eventdata reserved - to be defined in a future version of MATLAB
    
83. % handles structure with handles and user data (see GUIDATA)
    
84. mouse start

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步骤是需要利用GUIDE添加一个Static和一个 Text Axes，然后添加Callback函数即可，即可实现如下的画笔功能。

ChaChing

不错, 是原创吗?
若是请注明!

[ 本帖最后由 ChaChing 于 2009-10-12 15:02 编辑 ]

ChaChing

第一例顺序有误?!