matlab习题第十章

第十章

实验指导

1. screen=get(0,'screensize');

W=screen(3);

>> H=screen(4);

>> figure('position',[0.2*H,0.2*H,0.5*W,0.3*H],'Name','设计菜单','numbertitle','off','menubar','none');

aa=['new item'];

bb=[‘open item’];

cc=[‘save item’];

dd=[‘help item’];

hfile=uimenu(gcf,'label','&File');)

uimenu(hfile,'label','new','call',msgbox(aa,'Title'),'set(save,''enab le'',''off'')');

uimenu(hfile,’label’,’open’,’call’,msgbox(bb,’Title’),set(sav e,’’enable’’,’’off’’)’);

uimenu(hfile,’lable’,’save’,’call’,msgbox(cc,’Title’)); uimenu(gcf,’lable’,’&Exit’,’call’,close(gcf));

hhelp=uimenu(gcf,’label’,’&Help’);

uimenu(hhelp,’label’,’about,’’call’,msgbox(dd,’Title’),’set( save,’’enable’’,’’on’’))

2、

pdstart=uicontrol(gcf,'style','push','position',...

[50,5,60,25],'string','start plot',...

'callback','t=-pi:pi/20:pi;plot(t,t.*t)');

ptgrid=uicontrol(gcf,'style','toggle','position',...

[150,5,60,25],'string','grid','callback','grid');

htxt=uicontrol(gcf,'style','text','string',...

'color options','position',[200,130,150,20]);

hr=uicontrol(gcf,'style','radio','string',...

'red','position',[200,100,150,25],'value',1,...

'callback',['set(hr,''value'',1);','set(hb,''value'',0);',...

'set(hy,''value'',0);','set(plot(t,t.*t),''color'',''R'')']);

hb=uicontrol(gcf,'style','radio','string',...

'blue','position',[200,75,150,25],'value',1,...

'callback',['set(hb,''value'',1);','set(hr,''value'',0);',...

'set(hy,''value'',0);','set(plot(t,t.*t),''color'',''B'')']);

hy=uicontrol(gcf,'style','radio','string',...

'yellow','position',[200,50,150,25],'value',1,...

'callback',['set(hy,''value'',1);','set(hr,''value'',0);',...

'set(hb,''value'',0);','set(plot(t,t.*t),''color'',''Y'')']);

3、

function varargout = duoxiangshiqiugen(varargin)

% DUOXIANGSHIQIUGEN MATLAB code for duoxiangshiqiugen.fig

% DUOXIANGSHIQIUGEN, by itself, creates a new DUOXIANGSHIQIUGEN or raises the existing

% singleton*.

%

% H = DUOXIANGSHIQIUGEN returns the handle to a new DUOXIANGSHIQIUGEN or the handle to

% the existing singleton*.

%

% DUOXIANGSHIQIUGEN('CALLBACK',hObject,eventData,handles,...) calls the local

% function named CALLBACK in DUOXIANGSHIQIUGEN.M with the given input arguments.

%

% DUOXIANGSHIQIUGEN('Property','Value',...) creates a new DUOXIANGSHIQIUGEN or raises the

% existing singleton*. Starting from the left, property value pairs are % applied to the GUI before duoxiangshiqiugen_OpeningFcn gets called. An % unrecognized property name or invalid value makes property application % stop. All inputs are passed to duoxiangshiqiugen_OpeningFcn via varargin. %

% *See GUI Options on GUIDE's Tools menu. Choose "GUI allows only one

% instance to run (singleton)".

%

% See also: GUIDE, GUIDATA, GUIHANDLES

% Edit the above text to modify the response to help duoxiangshiqiugen

% Last Modified by GUIDE v2.5 28-May-2014 09:58:02

% Begin initialization code - DO NOT EDIT

gui_Singleton = 1;

gui_State = struct('gui_Name', mfilename, ...

'gui_Singleton', gui_Singleton, ...

'gui_OpeningFcn', @duoxiangshiqiugen_OpeningFcn, ...

'gui_OutputFcn', @duoxiangshiqiugen_OutputFcn, ...

'gui_LayoutFcn', [] , ...

'gui_Callback', []);

if nargin && ischar(varargin{1})

gui_State.gui_Callback = str2func(varargin{1});

end

if nargout

[varargout{1:nargout}] = gui_mainfcn(gui_State, varargin{:});

else

gui_mainfcn(gui_State, varargin{:});

end

% End initialization code - DO NOT EDIT

% --- Executes just before duoxiangshiqiugen is made visible.

function duoxiangshiqiugen_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 duoxiangshiqiugen (see VARARGIN)

% Choose default command line output for duoxiangshiqiugen

handles.output = hObject;

% Update handles structure

guidata(hObject, handles);

% UIWAIT makes duoxiangshiqiugen wait for user response (see UIRESUME)

% uiwait(handles.figure1);

% --- Outputs from this function are returned to the command line.

function varargout = duoxiangshiqiugen_OutputFcn(hObject, eventdata, handles) % varargout cell array for returning output args (see VARARGOUT);

% hObject handle to figure

% eventdata reserved - to be defined in a future version of MATLAB

% handles structure with handles and user data (see GUIDATA)

% Get default command line output from handles structure

varargout{1} = handles.output;

function edit1_Callback(hObject, eventdata, handles)

% hObject handle to edit1 (see GCBO)

% eventdata reserved - to be defined in a future version of MATLAB

% handles structure with handles and user data (see GUIDATA)

% Hints: get(hObject,'String') returns contents of edit1 as text

% str2double(get(hObject,'String')) returns contents of edit1 as a double

% --- Executes during object creation, after setting all properties.

function edit1_CreateFcn(hObject, eventdata, handles)

% hObject handle to edit1 (see GCBO)

% eventdata reserved - to be defined in a future version of MATLAB

% handles empty - handles not created until after all CreateFcns called

% Hint: edit controls usually have a white background on Windows.

% See ISPC and COMPUTER.

if ispc && isequal(get(hObject,'BackgroundColor'), get(0,'defaultUicontrolBackgroundColor'))

set(hObject,'BackgroundColor','white');

end

% --- Executes on button press in pushbutton1.

function pushbutton1_Callback(hObject, eventdata, handles)

% hObject handle to pushbutton1 (see GCBO)

% eventdata reserved - to be defined in a future version of MATLAB

% handles structure with handles and user data (see GUIDATA)

com1=get(handles.edit1,'string');

A=str2mat(com1);

a=str2num(A)

X=roots(a)

set(handles.edit2,'string',num2str(X));

function edit2_Callback(hObject, eventdata, handles)

% hObject handle to edit2 (see GCBO)

% eventdata reserved - to be defined in a future version of MATLAB

% handles structure with handles and user data (see GUIDATA)

% Hints: get(hObject,'String') returns contents of edit2 as text

% str2double(get(hObject,'String')) returns contents of edit2 as a double

% --- Executes during object creation, after setting all properties.

function edit2_CreateFcn(hObject, eventdata, handles)

% hObject handle to edit2 (see GCBO)

% eventdata reserved - to be defined in a future version of MATLAB

% handles empty - handles not created until after all CreateFcns called

% Hint: edit controls usually have a white background on Windows.

% See ISPC and COMPUTER.

if ispc && isequal(get(hObject,'BackgroundColor'), get(0,'defaultUicontrolBackgroundColor'))

set(hObject,'BackgroundColor','white');

end

function varargout = jizuobiaoquxian(varargin)

% JIZUOBIAOQUXIAN MATLAB code for jizuobiaoquxian.fig

% JIZUOBIAOQUXIAN, by itself, creates a new JIZUOBIAOQUXIAN or raises the existing

% singleton*.

%

% H = JIZUOBIAOQUXIAN returns the handle to a new JIZUOBIAOQUXIAN or the handle to

% the existing singleton*.

%

% JIZUOBIAOQUXIAN('CALLBACK',hObject,eventData,handles,...) calls the local

% function named CALLBACK in JIZUOBIAOQUXIAN.M with the given input arguments.

%

% JIZUOBIAOQUXIAN('Property','Value',...) creates a new JIZUOBIAOQUXIAN or raises the

% existing singleton*. Starting from the left, property value pairs are % applied to the GUI before jizuobiaoquxian_OpeningFcn gets called. An % unrecognized property name or invalid value makes property application % stop. All inputs are passed to jizuobiaoquxian_OpeningFcn via varargin. %

% *See GUI Options on GUIDE's Tools menu. Choose "GUI allows only one % instance to run (singleton)".

%

% See also: GUIDE, GUIDATA, GUIHANDLES

% Edit the above text to modify the response to help jizuobiaoquxian

% Last Modified by GUIDE v2.5 28-May-2014 09:55:56

% Begin initialization code - DO NOT EDIT

gui_Singleton = 1;

gui_State = struct('gui_Name', mfilename, ...

'gui_Singleton', gui_Singleton, ...

'gui_OpeningFcn', @jizuobiaoquxian_OpeningFcn, ...

'gui_OutputFcn', @jizuobiaoquxian_OutputFcn, ...

'gui_LayoutFcn', [] , ...

'gui_Callback', []);

if nargin && ischar(varargin{1})

gui_State.gui_Callback = str2func(varargin{1});

end

if nargout

[varargout{1:nargout}] = gui_mainfcn(gui_State, varargin{:});

else

gui_mainfcn(gui_State, varargin{:});

end

% End initialization code - DO NOT EDIT

% --- Executes just before jizuobiaoquxian is made visible.

function jizuobiaoquxian_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 jizuobiaoquxian (see VARARGIN)

% Choose default command line output for jizuobiaoquxian

handles.output = hObject;

% Update handles structure

guidata(hObject, handles);

% UIWAIT makes jizuobiaoquxian wait for user response (see UIRESUME)

% uiwait(handles.figure1);

% --- Outputs from this function are returned to the command line.

function varargout = jizuobiaoquxian_OutputFcn(hObject, eventdata, handles) % varargout cell array for returning output args (see VARARGOUT);

% hObject handle to figure

% eventdata reserved - to be defined in a future version of MATLAB

% handles structure with handles and user data (see GUIDATA)

% Get default command line output from handles structure

varargout{1} = handles.output;

% --- Executes on button press in pushbutton1.

function pushbutton1_Callback(hObject, eventdata, handles)

% hObject handle to pushbutton1 (see GCBO)

% eventdata reserved - to be defined in a future version of MATLAB

% handles structure with handles and user data (see GUIDATA)

com1=get(handles.edit1,'string');

com2=get(handles.edit2,'string');

com3=get(handles.edit3,'string');

A=str2mat(com1);

B=str2mat(com2);

C=str2mat(com3);

a=str2num(A);

b=str2num(B);

n=str2num(C);

th=0:0.01:pi;

polar(th,a*cos(b+th*n))

axis([-5,5,-20,20]);

hold on

function edit1_Callback(hObject, eventdata, handles)

% hObject handle to edit1 (see GCBO)

% eventdata reserved - to be defined in a future version of MATLAB

% handles structure with handles and user data (see GUIDATA)

% Hints: get(hObject,'String') returns contents of edit1 as text

% str2double(get(hObject,'String')) returns contents of edit1 as a double

% --- Executes during object creation, after setting all properties. function edit1_CreateFcn(hObject, eventdata, handles)

% hObject handle to edit1 (see GCBO)

% eventdata reserved - to be defined in a future version of MATLAB

% handles empty - handles not created until after all CreateFcns called

% Hint: edit controls usually have a white background on Windows.

% See ISPC and COMPUTER.

if ispc && isequal(get(hObject,'BackgroundColor'),

get(0,'defaultUicontrolBackgroundColor'))

set(hObject,'BackgroundColor','white');

end

function edit2_Callback(hObject, eventdata, handles)

% hObject handle to edit2 (see GCBO)

% eventdata reserved - to be defined in a future version of MATLAB

% handles structure with handles and user data (see GUIDATA)

% Hints: get(hObject,'String') returns contents of edit2 as text

% str2double(get(hObject,'String')) returns contents of edit2 as a double

% --- Executes during object creation, after setting all properties. function edit2_CreateFcn(hObject, eventdata, handles)

% hObject handle to edit2 (see GCBO)

% eventdata reserved - to be defined in a future version of MATLAB

% handles empty - handles not created until after all CreateFcns called

% Hint: edit controls usually have a white background on Windows.

% See ISPC and COMPUTER.

if ispc && isequal(get(hObject,'BackgroundColor'),

get(0,'defaultUicontrolBackgroundColor'))

set(hObject,'BackgroundColor','white');

end

function edit3_Callback(hObject, eventdata, handles)

% hObject handle to edit3 (see GCBO)

% eventdata reserved - to be defined in a future version of MATLAB

% handles structure with handles and user data (see GUIDATA)

% Hints: get(hObject,'String') returns contents of edit3 as text

% str2double(get(hObject,'String')) returns contents of edit3 as a double

% --- Executes during object creation, after setting all properties. function edit3_CreateFcn(hObject, eventdata, handles)

% hObject handle to edit3 (see GCBO)

% eventdata reserved - to be defined in a future version of MATLAB

% handles empty - handles not created until after all CreateFcns called

% Hint: edit controls usually have a white background on Windows.

% See ISPC and COMPUTER.

if ispc && isequal(get(hObject,'BackgroundColor'),

get(0,'defaultUicontrolBackgroundColor'))

set(hObject,'BackgroundColor','white');

end

5、

思考练习

1.图形用户界面，就是把所需要的M文件，编程一个可以和用户交互的界面程序，这样看起来更直观的一种呈现方式。可以在图形用户界面的窗口内实现输入，执行某一任务，显示结果，关闭窗口等功能，可以二维显示图形，也可以三维显示图形。

2.先根据自己的需要建立用户菜单，使用相应的级数，然后对菜单常用属性进行设置，再根据需要建立快捷菜单参数，最后，设计出一个漂亮的对话框，一个菜单的设计就基本完成了。

3.按钮push button就是一个按钮，只有按下一种状态；双位按钮toggle butt on，有按下和不按下两种状态；单选按钮Radio Button 控件为用户提供由两个或多个互斥选项组成的选项集；check box就是复选框，可以提供任意多个选项的选中和不选中；Edit Text是接受用户输入信息的控件，可以接受用户的信息，也可以提示用户要输入什么信息；列表框List Box控件表示一个选项清单，用户可能用鼠标选择其中一个或者几个选项；弹出框pop-up menu可以弹出一个菜单；static text就是显示静态文本的控件；slider是滑块控件，可以拖动窗口上内容的显示位置；panel控件可以用来组合一组其他的控件； button group 可以有几个button.

4. 第一种是直观的GUI设计工具GUIDE,第二种是利用M文件代码构建界面,即M 文件界面设计。其中GUI设计比较清楚直观，M文件设计过程更加简单，但是需要非常熟练的技巧确保不出错。

5. 可视化编程，就是可视化程序设计：以“所见即所得”的编程思想为原则，力图实现编程工作的可视化，即随时可以看到结果，程序与结果的调整同步。可视化编程是与传统的编程方式相比而言的，这里的“可视”，指的是无须编程，仅通过直观的操作方式即可完成界面的设计工作，是目前最好的Windows应用程序开发工具。

可视化编程语言的特点主要表现在两个方面：一是基于面向对象的思想，引入了类的概念和事件驱动；二是基于面向过程的思想，程序开发过程一般遵循以下步骤，即先进行界面的绘制工作，再基于事件编写程序代码，以响应鼠标、键盘的

各种动作。