单选按钮不能独占工作并在MATLAB GUI中给出错误 [英] Radio Button not working exclusively and giving error in MATLAB GUI
问题描述
我正在为MATLAB GUI编写代码以进行图像的成对比较，但由于我的单选按钮无法正常工作，我被卡住了
I am writing a code for MATLAB GUI for pair comparison of images but i am stuck because my radio button are not working exclusivley
gui_Singleton = 1;
gui_State = struct('gui_Name', mfilename, ...
'gui_Singleton', gui_Singleton, ...
'gui_OpeningFcn', @GUI_Personality_Impressions_OpeningFcn, ...
'gui_OutputFcn', @GUI_Personality_Impressions_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 GUI_Personality_Impressions is made visible.
function GUI_Personality_Impressions_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 GUI_Personality_Impressions (see VARARGIN)
% Choose default command line output for GUI_Personality_Impressions
handles.output = hObject;
% Update handles structure
guidata(hObject, handles);
% UIWAIT makes GUI_Personality_Impressions wait for user response (see UIRESUME)
% uiwait(handles.figure1);
% --- Outputs from this function are returned to the command line.
function varargout = GUI_Personality_Impressions_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)
set(handles.axes1,'units','pixels');
set(handles.axes2,'units','pixels');
scrz=get(0,'ScreenSize')
% pos2=[(scrz(3)-800)/2 (scrz(4)-600)/2 800 600];
fig_hr = 326;
fig_vr = 493;
pos1 = round((scrz(3)-fig_hr)/4)
pos2 = round((scrz(4)-fig_vr)/2)
% fig_xcoord = (ScreenSize(3) - fig_width)/2;
pos3 = [pos1 pos2 fig_hr fig_vr]
set(handles.axes1,'pos',[pos3]);
axes(handles.axes1);
imshow('Chinese_eyes+2.tif');
% pos1 = round((scrz(3)-fig_hr)/ 3)
posa = pos1 +1.5* round(fig_hr);
pos4 = [posa pos2 fig_hr fig_vr]
set(handles.axes2,'pos',[pos4]);
axes(handles.axes2);
imshow('Chinese_eyes+2.tif');
% % Get default command line output from handles structure
varargout{1} = handles.output;
% handles.FigureH = figure;
handles.radio1 = uicontrol('Style', 'radiobutton', ...
'Callback', @myRadio, ...
'Units', 'pixels', ...
'Tag', 'A1', ...
'Position', [(pos1+326+pos1)/2, pos2-70,70 ,50 ], ...
'String', 'A', ...
'Value', 1);
handles.radio2 = uicontrol('Style', 'radiobutton', ...
'Callback', @myRadio, ...
'Units', 'pixels', ...
'Position', [(posa+326+posa)/2, pos2-70,70 ,50], ...
'String', 'B', ...
'Tag', 'B1', ...
'Value', 0);
% handles.Next= uicontrol('Style', 'pushbutton', ...
% 'Callback', @pushbutton1, ...
% 'Units', 'pixels', ...
% 'Position', [(((pos1+326+pos1)/2)+(posa+326+posa)/2)/2, pos2- 140,70 ,50 ], ...
% 'String', 'Next', ...
% 'Value', 0);
% set(handles.Next,'Enable','off')
guidata(hObject, handles);
function myRadio(hObject,eventdata, handles)
global data
switch get(hObject,'Tag') % Get Tag of selected object.
case 'A1'
data=1;
set(handles.radio2, 'Value', 0);
case 'B1'
data=2;
set(handles.radio1, 'Value',0);
end
并且当在GUI上我选择一个单选按钮时，出现错误
and when on the GUI I select a radio button following errors appear
输入参数不足.
评估uicontrol回调时出错."
Error while evaluating uicontrol Callback."
错误出现在set即设置(handles.radio2，'Value'，0);的行上
The error is on the line for set i.e.set(handles.radio2, 'Value', 0);
在这方面我需要帮助...
I need help in this regard...
推荐答案
首先，如果希望单选按钮一起操作(只能选择一个按钮)，则希望将它们放入 uibuttongroup .
First of all, if you want your radio buttons to operate together (only be able to select one), you want to put them into a uibuttongroup.
第二，出现错误的原因是因为标准 MATLAB回调(使用uicontrol(..., 'Callback', @callback, ...)定义的回调)仅传递了两个输入参数(对于GUIDE，则为3) GUI).
Second, the reason for your error is because the standard MATLAB callbacks (the ones defined with uicontrol(..., 'Callback', @callback, ...)) only pass two input arguments (compared to 3 for GUIDE GUIs).
这些输入是:
- 生成回调的对象(按钮的句柄)
- 任何关联的事件数据
因此，您将需要修改myRadio以接受两个输入参数.
So you will want to modify myRadio to accept two input arguments.
function myRadio(hObject, eventData)
switch get(hObject,'Tag') % Get Tag of selected object.
case 'A1'
set(handles.radio2, 'Value', 0);
case 'B1'
set(handles.radio1, 'Value',0);
end
end
另一个选择是使用匿名功能.您可以使用它来创建具有三个输入的回调(就像GUIDE自己的回调一样)，然后您的myRadio函数可以保持不变.
The other option is to manually designate the inputs to your callback function using an anonymous function. You could use this to create a callback with three inputs (just like GUIDE's own callbacks) and then your myRadio function could remain as you have it.
set(handles.radio1, 'Callback', @(src,evnt)myRadio(src, evnt, handles))
除此之外，如果您使用uibuttongroup，则不会需要该回调，因为它所做的是确保每次仅选择一个单选按钮.
All that aside, if you use a uibuttongroup, you won't need this callback since all it does is ensures that only one radio button is selected at a time.
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