我们要做一个GUI界面，可以选择peaks、membrane和sinc三种三维图数据，选择画出surf、mesh和contour三种图像。
打开GUI
每个版本打开方式可能都不一样，但有一个是相同的，就是在命令行输入guide回车。
绘制控件
大概就绘制成这样，在左边的工具栏拖动出来就行。选中多个控件，点击上面的串串，还可以进行对齐和等间距分布。
设置控件属性
对着控件双击即可，普通按钮的string属性设置为Surf/Mesh/Contour，Tag属性设置为surf_pushbutton/mesh_pushbutton/contour_pushbutton。有兴趣可以改点大小颜色什么的。
下拉菜单的String会特殊一点，得写几行。
M文件编写
我一开始以为要自己另外新建一个M文件，然后发现其实只需要把刚才的界面保存一下就好了，界面会保存为一个.fig文件，然后自动生成一个.m文件，里面有每个控件对应的处理函数。名字很容易找，surf_pushbutton_Callback就是surf的普通按钮的回调函数，在下面写上自己想写的内容就行。
untitled_OpeningFcn是整个GUI打开时候执行的函数
% --- Executes just before untitled is made visible.function untitled_OpeningFcn(hObject, eventdata, handles, varargin)% This function has no output args, see OutputFcn.% hObject handle to figure% eventdata reserved - to be defined in a future version of MATLAB% handles structure with handles and user data (see GUIDATA)% varargin command line arguments to untitled (see VARARGIN)handles.peaks=peaks(35);handles.membrane=membrane;[x,y]=meshgrid(-8:0.5:8);r=sqrt(x.^2+y.^2)+eps;sinc=sin(r)./r;handles.sinc=sinc;%创建结构体，保存3组数据handles.current_data=handles.peaks;%默认绘制peaks图像surf(handles.current_data);%绘制图形% Choose default command line output for untitledhandles.output = hObject;%本来有的，选择默认命令行输出% Update handles structureguidata(hObject, handles);%本来有的，更新句柄handles结构和数据到hObject在surf_pushbutton_Callback里面增加绘制图像命令，另外两个普通按钮也一样。
% --- Executes on button press in surf_pushbutton.function surf_pushbutton_Callback(hObject, eventdata, handles)% hObject handle to surf_pushbutton (see GCBO)% eventdata reserved - to be defined in a future version of MATLAB% handles structure with handles and user data (see GUIDATA)surf(handles.current_data);%使用当前数据绘制surf图像popupmenu1_Callback是下拉菜单的回调函数
% --- Executes on selection change in popupmenu1.function popupmenu1_Callback(hObject, eventdata, handles)% hObject handle to popupmenu1 (see GCBO)% eventdata reserved - to be defined in a future version of MATLAB% handles structure with handles and user data (see GUIDATA)val=get(hObject,'Value');str=get(hObject,'String');switch str{val}%判断选择了哪一组数据，将当前内容更新为对应的数据case 'peaks' handles.current_data = handles.peaks;case 'membrane' handles.current_data = handles.membrane; case 'sinc' handles.current_data = handles.sinc; endguidata(hObject,handles)%更新句柄handles结构和内容到hObject% Hints: contents = cellstr(get(hObject,'String')) returns popupmenu1 contents as cell array% contents{get(hObject,'Value')} returns selected item from popupmenu1做到这里，项目有了个大致的模样。
窗口菜单
接下来就是锦上添花了
使用菜单编辑器新建菜单
添加代码
% --------------------------------------------------------------------function Close_menu_Callback(hObject, eventdata, handles)% hObject handle to Close_menu (see GCBO)% eventdata reserved - to be defined in a future version of MATLAB% handles structure with handles and user data (see GUIDATA)% --------------------------------------------------------------------function CloseF_botton_Callback(hObject, eventdata, handles)% hObject handle to CloseF_botton (see GCBO)% eventdata reserved - to be defined in a future version of MATLAB% handles structure with handles and user data (see GUIDATA)close(gcf);% --------------------------------------------------------------------function Surf_button_Callback(hObject, eventdata, handles)% hObject handle to Surf_button (see GCBO)% eventdata reserved - to be defined in a future version of MATLAB% handles structure with handles and user data (see GUIDATA)surf(handles.current_data);% --------------------------------------------------------------------function Mesh_button_Callback(hObject, eventdata, handles)% hObject handle to Mesh_button (see GCBO)% eventdata reserved - to be defined in a future version of MATLAB% handles structure with handles and user data (see GUIDATA)mesh(handles.current_data);% --------------------------------------------------------------------function Contour_botton_Callback(hObject, eventdata, handles)% hObject handle to Contour_botton (see GCBO)% eventdata reserved - to be defined in a future version of MATLAB% handles structure with handles and user data (see GUIDATA)contour(handles.current_data);实验效果
上下文菜单
这个名字不太好理解，就是对着对象右击就可以出来的菜单。
这里有个小技巧，当m文件太大的时候，点击查看就可以跳转到m文件对应的回调函数。
选择我们的上下文菜单
编写程序
% --------------------------------------------------------------------function box_menu_Callback(hObject, eventdata, handles)% hObject handle to box_menu (see GCBO)% eventdata reserved - to be defined in a future version of MATLAB% handles structure with handles and user data (see GUIDATA)if strcmp(get(gcbo,'checked'),'on') set(gcbo,'checked','off');else set(gcbo,'checked','on'); endbox;% --------------------------------------------------------------------function grid_menu_Callback(hObject, eventdata, handles)% hObject handle to grid_menu (see GCBO)% eventdata reserved - to be defined in a future version of MATLAB% handles structure with handles and user data (see GUIDATA)if strcmp(get(gcbo,'checked'),'on') set(gcbo,'checked','off');else set(gcbo,'checked','on'); endgrid;实验效果
对象浏览器
可以看到设计里面的所有对象，双击就能进属性。
GUI保存
会保存两个文件，fig和m。
fig是二进制文件，保存元件布局
m文件保存每个回调函数和具体执行