timer structure

how can I make buttons button1 and button2 can handle even rotatebutton condition "on"?

my code

function varargout = rottest(varargin)
% ROTTEST M-file for rottest.fig
%      ROTTEST, by itself, creates a new ROTTEST or raises the existing
%      singleton*.
%
%      H = ROTTEST returns the handle to a new ROTTEST or the handle to
%      the existing singleton*.
%
%      ROTTEST('CALLBACK',hObject,eventData,handles,...) calls the local
%      function named CALLBACK in ROTTEST.M with the given input arguments.
%
%      ROTTEST('Property','Value',...) creates a new ROTTEST or raises the
%      existing singleton*.  Starting from the left, property value pairs are
%      applied to the GUI before rottest_OpeningFcn gets called.  An
%      unrecognized property name or invalid value makes property application
%      stop.  All inputs are passed to rottest_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 rottest

% Last Modified by GUIDE v2.5 11-Jun-2011 06:58:14

    % Begin initialization code - DO NOT EDIT
gui_Singleton = 1;
gui_State = struct('gui_Name',       mfilename, ...
                   'gui_Singleton',  gui_Singleton, ...
                   'gui_OpeningFcn', @rottest_OpeningFcn, ...
                   'gui_OutputFcn',  @rottest_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 rottest is made visible.
function rottest_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 rottest (see VARARGIN)

% Choose default command line output for rottest
handles.output = hObject;
%just to put something in the axes so we can see it rotating

% Update handles structure
guidata(hObject, handles);
% UIWAIT makes rottest wait for user response (see UIRESUME)
% uiwait(handles.figure1);

% --- Outputs from this function are returned to the command line.
function varargout = rottest_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 rotatebutton.
function rotatebutton_Callback(hObject, eventdata, handles)
% hObject    handle to rotatebutton (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
MyTimer=timerfind('tag','MyTimer');
MyTimerStatus=get(MyTimer,'Running');
if strcmp(MyTimerStatus,'off')
start(MyTimer)
else
stop(MyTimer)
end

function RotImgFcn(a,b)
%this function does the rotation
camorbit(findall(0,'tag','MyAxes'),1,0,'data',[0 0 1]); 

% --- Executes when user attempts to close figure1.
function figure1_CloseRequestFcn(hObject, eventdata, handles)
% hObject    handle to figure1 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
% when the user closes the GUI it stops the timer if it is running
% and deletes the timer from memory
MyTimer=timerfind('tag','MyTimer');
MyTimerStatus=get(MyTimer,'Running');
if strcmp(MyTimerStatus,'on')
stop(MyTimer)
end
delete(timerfind('tag','MyTimer')); %delete our timer
%delete(timerfindall) %delete all timer objects
% Hint: delete(hObject) closes the figure
delete(hObject);

% --- Executes on button press in plotbutton.
function plotbutton_Callback(hObject, eventdata, handles)
% hObject    handle to plotbutton (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
surf(peaks)
axis vis3d
MyTimer=timer('TimerFcn',@RotImgFcn,'BusyMode','queue','executionmode','fixedspacing','period',0.01);
%tag the timer and axes to have easy access to their handles
set(MyTimer,'tag','MyTimer')
set(handles.axes1,'tag','MyAxes')

% --- 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

% --- Executes on button press in xyview.
function button1_Callback(hObject, eventdata, handles)
% hObject    handle to xyview (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
view ([0 0])
function button2_Callback(hObject, eventdata, handles)
% hObject    handle to xyview (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
view ([90 0])

[Jan]

Does "??? Operation terminated by user during" mean, that you press Ctrl-C? If so, why do you do this?

[pink]

I intend to put the timer on a camorbit function, if the timer is running I try to combine with other buttons (view), the start went well, but if I do it a second time, there hangs and I have to stop using crtl + c. there may be errors in my code.