Select a radiobutton.Calculate derivation or integration.

Question

oner 2012-12-6

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/55954-select-a-radiobutton-calculate-derivation-or-integration

I did a guide.it can calculate function. Than function is written by user in an edit text.My gui shows it at second edit text. problem is this. My gui has two radio button(derivation and integration). I want when user select one of them my program calculate function.if user select integration my program solves integration of function, if user select derivation my progtam solves derivation of function. What i can do ? My progtam :

% --- Executes when selected object is changed in uipanel1. function uipanel1_SelectionChangeFcn(hObject, eventdata, handles)

if(hObject == handles.radiobutton_derivation)

elseif(hObject == handles.radiobutton_integration)

end

% Update handles structure guidata(hObject, handles);

% hObject handle to the selected object in uipanel1 % eventdata structure with the following fields (see UIBUTTONGROUP) % EventName: string 'SelectionChanged' (read only) % OldValue: handle of the previously selected object or empty if none was selected % NewValue: handle of the currently selected object % handles structure with handles and user data (see GUIDATA)

What must i write in if and elseif ??

Thank you for answer.

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Answer 1

Matt Fig 2012-12-7

1
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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/55954-select-a-radiobutton-calculate-derivation-or-integration#answer_67788

编辑：Matt Fig 2012-12-7

在 MATLAB Online 中打开

If you put the code in SelectionChangeFcn, then the integral or derivative will be computed as soon as the user changes radio buttons. Is that really what you want?

If not, I would put the code in the callback where the calculation is made. For example in a pushbutton callback. Here is where you find the selectedobject property and use that in the IF statement.

a = get(handles.edit1,'String');
H = handles;
if H.radiobutton_derivation==get(H.uipanel1,'selectedob')
   b = diff(sym(a));
else
   b = int(sym(a));
end
set(handles.edit2, 'String', char(b));

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oner 2012-12-7

编辑：oner 2012-12-7

在 MATLAB Online 中打开

My code is :

function varargout = untitled3(varargin)
%UNTITLED3 M-file for untitled3.fig
%      UNTITLED3, by itself, creates a new UNTITLED3 or raises the existing
%      singleton*.
%
%      H = UNTITLED3 returns the handle to a new UNTITLED3 or the handle to
%      the existing singleton*.
%
%      UNTITLED3('Property','Value',...) creates a new UNTITLED3 using the
%      given property value pairs. Unrecognized properties are passed via
%      varargin to untitled3_OpeningFcn.  This calling syntax produces a
%      warning when there is an existing singleton*.
%
%      UNTITLED3('CALLBACK') and UNTITLED3('CALLBACK',hObject,...) call the
%      local function named CALLBACK in UNTITLED3.M with the given input
%      arguments.
%
%      *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 untitled3
% Last Modified by GUIDE v2.5 07-Dec-2012 02:03:03
% Begin initialization code - DO NOT EDIT
gui_Singleton = 1;
gui_State = struct('gui_Name',       mfilename, ...
                   'gui_Singleton',  gui_Singleton, ...
                   'gui_OpeningFcn', @untitled3_OpeningFcn, ...
                   'gui_OutputFcn',  @untitled3_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 untitled3 is made visible.
function untitled3_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   unrecognized PropertyName/PropertyValue pairs from the
%            command line (see VARARGIN)
% Choose default command line output for untitled3
handles.output = hObject;
% Update handles structure
guidata(hObject, handles);
% UIWAIT makes untitled3 wait for user response (see UIRESUME)
% uiwait(handles.figure1);
% --- Outputs from this function are returned to the command line.
function varargout = untitled3_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 when selected object is changed in uipanel1.
function uipanel1_SelectionChangeFcn(hObject, eventdata, handles)
% hObject    handle to the selected object in uipanel1 
% eventdata  structure with the following fields (see UIBUTTONGROUP)
%  EventName: string 'SelectionChanged' (read only)
%  OldValue: handle of the previously selected object or empty if none was selected
%  NewValue: handle of the currently selected object
% handles    structure with handles and user data (see GUIDATA)
a = get(handles.edit1,'String');
H = handles;
if (H.radiobutton_derivation==get(H.uipanel1,'selectedob'))
   b = diff(sym(a));
else
   b = int(sym(a));
end
% --- Executes on button press in pushbutton_calculate.
function pushbutton_calculate_Callback(hObject, eventdata, handles)
% hObject    handle to pushbutton_calculate (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
set(handles.edit2, 'String', char(b));
% Update handles structure
guidata(hObject, handles);
% --- Executes on button press in pushbutton_reset.
function pushbutton_reset_Callback(hObject, eventdata, handles)
% hObject    handle to pushbutton_reset (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 text_integral_CreateFcn(hObject, eventdata, handles)
% hObject    handle to text_integral (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    empty - handles not created until after all CreateFcns called
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
% --- Executes during object creation, after setting all properties.
function text_dx_CreateFcn(hObject, eventdata, handles)
% hObject    handle to text_dx (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    empty - handles not created until after all CreateFcns called

what i can do? pleas help me.

Matt Fig 2012-12-7

编辑：Matt Fig 2012-12-7

在 MATLAB Online 中打开

Here is a simple example that uses a toggle button to do the same thing. Instead of asking for the state of the toggle button, you are asking which is the selected object...

function [] = gui_calculus()
% How to use symbolics and strings.
S.fh = figure('name','Calculus',...
              'menubar','none',...
              'numbert','off',...
              'resize','off',...
              'pos',[100 100 300 150]);
S.tg = uicontrol('Style','toggle',...
                 'Units','pix',...
                 'Position',[10 10 130 130],...
                 'callback',@tg_callb,...
                 'fontsize',13,...
                 'fontweight','bold',...
                 'String','Integral');
S.ed = uicontrol('Style','edit',...
                 'Units','pix',...
                 'Position',[150 100 130 30],...
                 'String','x^2 + sin(x)');
S.pb = uicontrol('Style','push',...
                 'Units','pix',...
                 'Position',[150 10 130 80],...
                 'CallBack',@pb_callb,...
                 'String','Calculate');             
movegui('center')     
guidata(S.fh,S)
uicontrol(S.ed)  % put the focus on func box.
function [] = pb_callb(varargin)
% Callback for the push button
S = guidata(gcbf);  % Get the structure.
a = get(S.ed,'String');
if get(S.tg,'value')  % Find state of the toggle
    b = diff(sym(a));
else
    b = int(sym(a));
end
set(S.ed, 'String', char(b));
guidata(S.fh,S)
function [] = tg_callb(varargin)
% Callback for the toggle.
S = guidata(gcbf);  % Get the structure.
if get(S.tg,'value')
    set(S.tg,'string','Derivative')
else
    set(S.tg,'string','Integral')
end

oner 2012-12-7

İt is perfect example. I examined it. I understand my problem. thank you so . i did it :)

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Select a radiobutton.Calculate derivation or integration.

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Select a radiobutton.Calculate derivation or integration.

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