Random graph showing up on my GUI?

Hello. Can someone please point to me why my GUI background turns into a plot graph while trying to run accelerometer data? Here is the only button it occurs on

% --- Executes on button press in Read.
function Read_Callback(hObject, eventdata, handles)
% hObject    handle to Read (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
%COMPORT

comPort = '/dev/tty.usbmodemfa131';

%READS SERIAL
 [accelerometer.s,serialFlag] = setupSerial(comPort);
    calCo = calibrate(accelerometer.s);

%READS DATA
a = 0;
if a == 0

[gx gy gz] = readAcc(accelerometer,calCo);
cla;

r = sqrt((gx^2)+(gy^2)+(gz^2));
r

end

guidata(hObject, handles);

[Amed]

I will post the entire code if needed

[Amed]

Anyone

[Amed]

help

[Amed]

anything

Answer 1

[Image Analyst]

Are you sure you didn't place a gigantic axes control behind all your other controls on your GUI? And then somehow (not shown here) you plot something to it? What gets plotted? Is it anything you recognize?

[Amed]

There is nothing getting plotted. Every time I attempt to read data using that code, my background changes into a plot.. here is the entire code for further analysis

function varargout = iMeasureFIG(varargin)

gui_Singleton = 1;
gui_State = struct('gui_Name',       mfilename, ...
                   'gui_Singleton',  gui_Singleton, ...
                   'gui_OpeningFcn', @iMeasureFIG_OpeningFcn, ...
                   'gui_OutputFcn',  @iMeasureFIG_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

% ~~~~~~~~~ OPENING / OUTPUT FUNCTIONS ~~~~~~~~~ %
% --- Executes just before BW2 is made visible.
function iMeasureFIG_OpeningFcn(hObject, eventdata, handles, varargin)

handles.output = hObject;
guidata(hObject, handles);
setappdata(handles.ClosePush, 'Close', 0);

% --- Outputs from this function are returned to the command line.
function varargout = iMeasureFIG_OutputFcn(hObject, eventdata, handles) 

varargout{1} = handles.output;

% ~~~~~~~~~ SERIALPUSH SETUP ~~~~~~~~~ %
function [s,flag] = setupSerial(comPort)
% Initialize the serialpush port communication between Arduino and MATLAB
% The input value is the COMPORT should be changed as per requirement
% We ensure that the arduino is also communicatiing with MATLAB at this
% time. A predefined code on the arduino acknowledges this. 
% if setup is complete then the value of setup is returned as 1 else 0
flag = 1;
s = serial(comPort);
set(s,'DataBits', 8 );
set(s,'StopBits', 1 );
set(s,'BaudRate', 9600);
set(s,'Parity', 'none'); 
fopen(s);
a='b';
while (a ~='a')
    a=fread(s,1,'uchar');
end
if (a=='a')
    disp('serial read');
end
  fprintf(s,'%c','a'); 
  mbox = msgbox('Serial Communication setup.'); uiwait(mbox);
  fscanf(s,'%u');

% ~~~~~~~~~ CALIBRATION SETUP ~~~~~~~~~ %
function calCo= calibrate(s)
    out.s=s;
    calCo.offset=0;
    calCo.g=1;

      %readpush the raw accelerometer output at three different orientations
      mbox = msgbox('Lay accelerometer on a flat surface.', 'Calibration'); uiwait(mbox);
      [gx_z gy_z gz_z] = readAcc(out,calCo);   %gZ = 1, gX = gY = 0 orientation

      mbox = msgbox('Stand accelerometer on edge so that X arrow points up.', 'Calibration'); uiwait(mbox); 
      [gx_x gy_x gz_x] = readAcc(out,calCo);   %gX = 1, gY = gZ = 0 orientation

      mbox = msgbox('Stand accelerometer on edge so that Y arrow points up.', 'Calibration'); uiwait(mbox);
      [gx_y gy_y gz_y] = readAcc(out,calCo);   %gY = 1, gX = gZ = 0 orientation

      %calculate offsets for each axis
      offsetX = (gx_z + gx_y) / 2;
      offsetY = (gy_x + gy_z) / 2;
      offsetZ = (gz_x + gz_y) / 2;

      %calculate scaling factors
      gainX = gx_x - offsetX;
      gainY = gy_y - offsetY;
      gainZ = gz_z - offsetZ;

      calCo.offset = [offsetX offsetY offsetZ];
      calCo.g = [gainX gainY gainZ];

      mbox = msgbox('Sensor calibration complete'); uiwait(mbox);

% ~~~~~~~~~ READACC SETUP ~~~~~~~~~ %
 function [gx gy gz] = readAcc(out,calCo)

          %mapping between analog inputs and X,Y,Z axes.
  %         Xch = 1;
  %         Ych = 3;
  %         Zch = 2;

          fprintf(out.s,'R');
          %readpush voltages from accelerometer and reorder

          reordered(1)= fscanf(out.s,'%u');
          reordered(2)= fscanf(out.s,'%u');
          reordered(3)= fscanf(out.s,'%u');

          %determine what offset and gain values to use
          offset = calCo.offset;
          gain = calCo.g;
          accel = (reordered - offset) ./ gain;

          %map analog inputs to axes
          gx = accel(1);
          gy = accel(2);
          gz = accel(3);

% ~~~~~~~~~ SERIALPUSH READPUSH ~~~~~~~~~ %
function SerialPush_Callback(hObject, eventdata, handles)

handles.comPort = '/dev/tty.usbmodemfa131';

if (~exist('serialFlag','var'))
    [handles.accelerometer.s,handles.serialFlag] = ...
        setupSerial(handles.comPort);
end

guidata(hObject, handles);

% ~~~~~~~~~ CALIBRATION ~~~~~~~~~ %
function CalibratePush_Callback(hObject, eventdata, handles)

if(~exist('handles.calCo', 'var'))
    handles.calCo = calibrate(handles.accelerometer.s);
end

guidata(hObject, handles);

% ~~~~~~~~~ CLOSEPUSH SERIALPUSH ~~~~~~~~~ %
function ClosePush_Callback(hObject, eventdata, handles)
% hObject    handle to ClosePush (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
setappdata(handles.ClosePush, 'Close', 1);
clc
clear all
if ~isempty(instrfind)
    fclose(instrfind);
    delete(instrfind);
end
close all
clc
disp('Serial Port Closed')

% --- Executes on button press in ReadPush.
function ReadPush_Callback(hObject, eventdata, handles)
% hObject    handle to ReadPush (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
%COMPORT

comPort = '/dev/tty.usbmodemfa131';

%READS SERIALPUSH
 [accelerometer.s,serialFlag] = setupSerial(comPort);
    calCo = calibrate(accelerometer.s);

%READS DATA
while getappdata(handles.ClosePush,'Close') == 0

[gx gy gz] = readAcc(accelerometer,calCo);
cla;

r = sqrt((gx^2)+(gy^2)+(gz^2));
gz

end

guidata(hObject, handles);

[Amed]

so lost

[Image Analyst]

I can't run it without the fig file. Upload it and the m-file somewhere and tell us where.

Answer 2

[Alan Hidalgo]

Hey Amed, I had the same issue with a realtime plot in which I had to open another Gui. Whenever I opened the other Gui, its background had the realtime plot on it too. I have no idea how to fix this with code, I just edited the second Gui and made a much bigger textbox that would cover up the entire frame of the Gui and it did the trick, the graph is no longer visible where it must not. You should give it a try.