用MATLAB的GUI繪圖的一個簡單例子
阿新 • • 發佈:2019-02-20
本文參考自https://jingyan.baidu.com/article/0f5fb099ade1626d8334ead0.html,略加改動。
常用MATLAB進行一些計算,使用GUI功能的話調整引數的時候會比較方便。
首先在MATLAB中選擇新建圖形使用者介面
我們可以從左邊拖拽我們想要新增的元件,來繪製介面。
雙擊相應的元件,我們可以在彈出的框中修改元件的一些屬性,比如文字內容,字型等等。
這個GUI檔案直接儲存為fig格式的檔案即可。
右鍵點選某一個元件,選擇查看回調-->callback,即會自動跳轉到相應的程式碼處,並且可以從這裡檢視到改元件的名稱為edit2 。
這個例子是要實現一個繪製函式影象的GUI程式,接下來在按鈕的相關程式碼處新增程式程式碼如下:
% --- 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) fd = get(handles.edit1,'String'); %公式輸入框 axes(handles.axes1); Xmin = get(handles.edit4,'String'); Xmax = get(handles.edit5,'String'); Ymin = get(handles.edit6,'String'); Ymax = get(handles.edit7,'String'); f1 = ezplot(fd,[str2num(Xmin),str2num(Xmax),str2num(Ymin),str2num(Ymax)]); col = get(handles.edit2,'String'); set(f1,'Color',col); wid = get(handles.edit3,'String'); set(f1,'LineWidth',str2num(wid)); grid on;
這段程式的內容還是比較好理解的,這裡就不再贅述了。點選執行,即可測試該程式。
下面附上完整的程式碼,其實除了上面的那一段關於按鈕的程式碼之外,都是自動生成的。
function varargout = helloGUI2(varargin) % HELLOGUI2 MATLAB code for helloGUI2.fig % HELLOGUI2, by itself, creates a new HELLOGUI2 or raises the existing % singleton*. % % H = HELLOGUI2 returns the handle to a new HELLOGUI2 or the handle to % the existing singleton*. % % HELLOGUI2('CALLBACK',hObject,eventData,handles,...) calls the local % function named CALLBACK in HELLOGUI2.M with the given input arguments. % % HELLOGUI2('Property','Value',...) creates a new HELLOGUI2 or raises the % existing singleton*. Starting from the left, property value pairs are % applied to the GUI before helloGUI2_OpeningFcn gets called. An % unrecognized property name or invalid value makes property application % stop. All inputs are passed to helloGUI2_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 helloGUI2 % Last Modified by GUIDE v2.5 24-Nov-2017 16:34:08 % Begin initialization code - DO NOT EDIT gui_Singleton = 1; gui_State = struct('gui_Name', mfilename, ... 'gui_Singleton', gui_Singleton, ... 'gui_OpeningFcn', @helloGUI2_OpeningFcn, ... 'gui_OutputFcn', @helloGUI2_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 helloGUI2 is made visible. function helloGUI2_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 helloGUI2 (see VARARGIN) % Choose default command line output for helloGUI2 handles.output = hObject; % Update handles structure guidata(hObject, handles); % UIWAIT makes helloGUI2 wait for user response (see UIRESUME) % uiwait(handles.figure1); % --- Outputs from this function are returned to the command line. function varargout = helloGUI2_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; % --- If Enable == 'on', executes on mouse press in 5 pixel border. % --- Otherwise, executes on mouse press in 5 pixel border or over text1. function text1_ButtonDownFcn(hObject, eventdata, handles) % hObject handle to text1 (see GCBO) % eventdata reserved - to be defined in a future version of MATLAB % handles structure with handles and user data (see GUIDATA) % --- Executes during object creation, after setting all properties. function text1_CreateFcn(hObject, eventdata, handles) % hObject handle to text1 (see GCBO) % eventdata reserved - to be defined in a future version of MATLAB % handles empty - handles not created until after all CreateFcns called % --- Executes during object deletion, before destroying properties. function text1_DeleteFcn(hObject, eventdata, handles) % hObject handle to text1 (see GCBO) % eventdata reserved - to be defined in a future version of MATLAB % handles structure with handles and user data (see GUIDATA) 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) fd = get(handles.edit1,'String'); %公式輸入框 axes(handles.axes1); Xmin = get(handles.edit4,'String'); Xmax = get(handles.edit5,'String'); Ymin = get(handles.edit6,'String'); Ymax = get(handles.edit7,'String'); f1 = ezplot(fd,[str2num(Xmin),str2num(Xmax),str2num(Ymin),str2num(Ymax)]); col = get(handles.edit2,'String'); set(f1,'Color',col); wid = get(handles.edit3,'String'); set(f1,'LineWidth',str2num(wid)); grid on; 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 function edit4_Callback(hObject, eventdata, handles) % hObject handle to edit4 (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 edit4 as text % str2double(get(hObject,'String')) returns contents of edit4 as a double % --- Executes during object creation, after setting all properties. function edit4_CreateFcn(hObject, eventdata, handles) % hObject handle to edit4 (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 edit5_Callback(hObject, eventdata, handles) % hObject handle to edit5 (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 edit5 as text % str2double(get(hObject,'String')) returns contents of edit5 as a double % --- Executes during object creation, after setting all properties. function edit5_CreateFcn(hObject, eventdata, handles) % hObject handle to edit5 (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 edit6_Callback(hObject, eventdata, handles) % hObject handle to edit6 (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 edit6 as text % str2double(get(hObject,'String')) returns contents of edit6 as a double % --- Executes during object creation, after setting all properties. function edit6_CreateFcn(hObject, eventdata, handles) % hObject handle to edit6 (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 edit7_Callback(hObject, eventdata, handles) % hObject handle to edit7 (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 edit7 as text % str2double(get(hObject,'String')) returns contents of edit7 as a double % --- Executes during object creation, after setting all properties. function edit7_CreateFcn(hObject, eventdata, handles) % hObject handle to edit7 (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 during object creation, after setting all properties. function axes1_CreateFcn(hObject, eventdata, handles) % hObject handle to axes1 (see GCBO) % eventdata reserved - to be defined in a future version of MATLAB % handles empty - handles not created until after all CreateFcns called % Hint: place code in OpeningFcn to populate axes1