这是目前的所有代码。更改按钮组中的所选按钮但在更改所选按钮之前不显示图像时，将显示正确的图像。我希望第一张图像是FloorPlan {1}，就像在axes1_CreateFcn中所说的那样，但它不起作用。在您更改按钮之前，轴根本不存在。
function varargout = selectfloorplan(varargin)
% SELECTFLOORPLAN MATLAB code for selectfloorplan.fig
% SELECTFLOORPLAN, by itself, creates a new SELECTFLOORPLAN or raises the existing
% singleton*.
%
% H = SELECTFLOORPLAN returns the handle to a new SELECTFLOORPLAN or the handle to
% the existing singleton*.
%
% SELECTFLOORPLAN('CALLBACK',hObject,eventData,handles,...) calls the local
% function named CALLBACK in SELECTFLOORPLAN.M with the given input arguments.
%
% SELECTFLOORPLAN('Property','Value',...) creates a new SELECTFLOORPLAN or raises the
% existing singleton*. Starting from the left, property value pairs are
% applied to the GUI before selectfloorplan_OpeningFcn gets called. An
% unrecognized property name or invalid value makes property application
% stop. All inputs are passed to selectfloorplan_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 selectfloorplan
% Last Modified by GUIDE v2.5 18-Apr-2014 11:16:48
% Begin initialization code - DO NOT EDIT
gui_Singleton = 1;
gui_State = struct('gui_Name', mfilename, ...
'gui_Singleton', gui_Singleton, ...
'gui_OpeningFcn', @selectfloorplan_OpeningFcn, ...
'gui_OutputFcn', @selectfloorplan_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 selectfloorplan is made visible.
function selectfloorplan_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 selectfloorplan (see VARARGIN)
% Choose default command line output for selectfloorplan
handles.output = hObject;
% Update handles structure
guidata(hObject, handles);
% UIWAIT makes selectfloorplan wait for user response (see UIRESUME)
% uiwait(handles.figure1);
% --- Outputs from this function are returned to the command line.
function varargout = selectfloorplan_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 during object creation, after setting all properties.
function axes1_CreateFcn(hObject, eventdata, handles)
global FloorPlans floorplanselection
% 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
imagesc(FloorPlans{1})
floorplanselection=FloorPlans{1};
axis off
axis('image')
colormap(gray)
% --- Executes when selected object is changed in uipanel1.
function uipanel1_SelectionChangeFcn(hObject, eventdata, handles)
global FloorPlans floorplanselection
% 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)
switch get(eventdata.NewValue,'Tag')
case 'rad1'
axes(handles.axes1)
imagesc(FloorPlans{1})
floorplanselection=FloorPlans{1};
axis off
axis('image')
colormap(gray)
case 'rad2'
axes(handles.axes1)
imagesc(FloorPlans{2})
floorplanselection=FloorPlans{2};
axis off
axis('image')
colormap(gray)
case 'rad3'
axes(handles.axes1)
imagesc(FloorPlans{3})
floorplanselection=FloorPlans{3};
axis off
axis('image')
colormap(gray)
case 'rad4'
axes(handles.axes1)
imagesc(FloorPlans{4})
floorplanselection=FloorPlans{4};
axis off
axis('image')
colormap(gray)
case 'rad5'
axes(handles.axes1)
imagesc(FloorPlans{5})
floorplanselection=FloorPlans{5};
axis off
axis('image')
colormap(gray)
case 'rad6'
axes(handles.axes1)
imagesc(FloorPlans{6})
floorplanselection=FloorPlans{6};
axis off
axis('image')
colormap(gray)
end
% --- Executes on button press in nectbtn.
function nectbtn_Callback(hObject, eventdata, handles)
% hObject handle to nectbtn (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles structure with handles and user data (see GUIDATA)
selectrobot
delete(get(hObject, 'parent'));
% --- Executes on button press in pushbutton3.
function pushbutton3_Callback(hObject, eventdata, handles)
% hObject handle to pushbutton3 (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles structure with handles and user data (see GUIDATA)
mainmenu
delete(get(hObject, 'parent'));
% --- Executes during object creation, after setting all properties.
function uipanel1_CreateFcn(hObject, eventdata, handles)
% hObject handle to uipanel1 (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles empty - handles not created until after all CreateFcns called
答案 0 :(得分：0)
图形对象的ID存储在GUIDE存储并在回调之间传递的handles结构中。 axis1作为输入不起作用的原因是因为它没有在回调函数的范围内定义，因此函数无法解决它。这就是您的全球解决方案＆＃39;修复＆＃39;问题。
如果您在handles.axes1来电中替换axis1 axes()（或任何轴对象标记）{{1}}，它应该按照您的预期执行。