Plotting from file loop

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Dzhamshed
Dzhamshed 2012-8-8
I have a file which updates each 20 sec, and I want to have a plot of some columns, I made a loop for reading file infinitly, but it plots just one time and no more... here is the whole code http://pastebin.com/encDs5XJ. Please, help me if you are able...
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Oleg Komarov
Oleg Komarov 2012-8-8
Post the code here and format it with the code button.

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回答（1 个）

Dzhamshed
Dzhamshed 2012-8-9
function varargout = untitled(varargin)
% UNTITLED M-file for untitled.fig
% UNTITLED, by itself, creates a new UNTITLED or raises the existing
% singleton*.
%
% H = UNTITLED returns the handle to a new UNTITLED or the handle to
% the existing singleton*.
%
% UNTITLED('CALLBACK',hObject,eventData,handles,...) calls the local
% function named CALLBACK in UNTITLED.M with the given input arguments.
%
% UNTITLED('Property','Value',...) creates a new UNTITLED or raises the
% existing singleton*. Starting from the left, property value pairs are
% applied to the GUI before untitled_OpeningFcn gets called. An
% unrecognized property name or invalid value makes property application
% stop. All inputs are passed to untitled_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 untitled
% Last Modified by GUIDE v2.5 07-Aug-2012 11:58:09
% Begin initialization code - DO NOT EDIT
gui_Singleton = 1;
gui_State = struct('gui_Name', mfilename, ...
'gui_Singleton', gui_Singleton, ...
'gui_OpeningFcn', @untitled_OpeningFcn, ...
'gui_OutputFcn', @untitled_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 untitled is made visible.
function untitled_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 untitled (see VARARGIN)
% Choose default command line output for untitled
handles.output = hObject;
% Update handles structure
guidata(hObject, handles);
% UIWAIT makes untitled wait for user response (see UIRESUME)
% uiwait(handles.figure1);
% --- Outputs from this function are returned to the command line.
function varargout = untitled_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 selection change in popupmenuY.
function popupmenuY_Callback(hObject, eventdata, handles)
% hObject handle to popupmenuY (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles structure with handles and user data (see GUIDATA)
% Hints: contents = get(hObject,'String') returns popupmenuY contents as cell array
% contents{get(hObject,'Value')} returns selected item from popupmenuY
% --- Executes during object creation, after setting all properties.
function popupmenuY_CreateFcn(hObject, eventdata, handles)
% hObject handle to popupmenuY (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles empty - handles not created until after all CreateFcns called
% Hint: popupmenu 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 selection change in popupmenuX.
function popupmenuX_Callback(hObject, eventdata, handles)
% hObject handle to popupmenuX (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles structure with handles and user data (see GUIDATA)
% Hints: contents = get(hObject,'String') returns popupmenuX contents as cell array
% contents{get(hObject,'Value')} returns selected item from popupmenuX
% --- Executes during object creation, after setting all properties.
function popupmenuX_CreateFcn(hObject, eventdata, handles)
% hObject handle to popupmenuX (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles empty - handles not created until after all CreateFcns called
% Hint: popupmenu 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 pushbuttonLoadXLS.
function pushbuttonLoadXLS_Callback(hObject, eventdata, handles)
handles.fileName=uigetfile('*.xls')
guidata(hObject, handles)
setPopupmenuString(handles.popupmenuX, eventdata, handles)
setPopupmenuString(handles.popupmenuY, eventdata, handles)
set (handles. popupmenuX, 'callback','mainGUI(''updateAxes'',gcbo,[],guidata(gcbo))')
set (handles. popupmenuY, 'callback','mainGUI(''updateAxes'',gcbo,[],guidata(gcbo))')
function setPopupmenuString(hObject, eventdata, handles)
fileName=handles.fileName;
[numbers,colNames]=xlsread(fileName);
set(hObject,'string',colNames);
% hObject handle to pushbuttonLoadXLS (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles structure with handles and user data (see GUIDATA)
function [x,y] = readExcelColumns (fileName, xColNum, yColNum)
a= xlsread(fileName);
x=a(:,xColNum);
y=a(:,yColNum)
function updateAxes (hObject, eventdata, handles)
xColNum = get(handles.popupmenuX, 'value');
yColNum = get(handles.popupmenuY, 'value');
fileName=handles.fileName;
inf = 1;
for k=1:1000
[x,y] = readExcelColumns (fileName, xColNum, yColNum)
plot (handles.axes1,x,y)
pause (10);
if inf==0
break;
end
end
% --- Executes on button press in pushbuttonSTOP.
function pushbuttonSTOP_Callback(hObject, eventdata, handles)
inf = 0;
% hObject handle to pushbuttonSTOP (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles structure with handles and user data (see GUIDATA)

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