Nyquist and Step Function Response GUI

%% MAIN GUI

function varargout = matlab_hw1(varargin)

% MATLAB_HW1 MATLAB code for matlab_hw1.fig
%      MATLAB_HW1, by itself, creates a new MATLAB_HW1 or raises the existing
%      singleton*.
%
%      H = MATLAB_HW1 returns the handle to a new MATLAB_HW1 or the handle to
%      the existing singleton*.
%
%      MATLAB_HW1('CALLBACK',hObject,eventData,handles,...) calls the local
%      function named CALLBACK in MATLAB_HW1.M with the given input arguments.
%
%      MATLAB_HW1('Property','Value',...) creates a new MATLAB_HW1 or raises the
%      existing singleton*.  Starting from the left, property value pairs are
%      applied to the GUI before matlab_hw1_OpeningFcn gets called.  An
%      unrecognized property name or invalid value makes property application
%      stop.  All inputs are passed to matlab_hw1_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 matlab_hw1

% Last Modified by GUIDE v2.5 04-Dec-2023 02:51:21

% Begin initialization code - DO NOT EDIT
gui_Singleton = 1;
gui_State = struct('gui_Name',       mfilename, ...
                   'gui_Singleton',  gui_Singleton, ...
                   'gui_OpeningFcn', @matlab_hw1_OpeningFcn, ...
                   'gui_OutputFcn',  @matlab_hw1_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 matlab_hw1 is made visible.
function matlab_hw1_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 matlab_hw1 (see VARARGIN)

% Choose default command line output for matlab_hw1
handles.output = hObject;

% Update handles structure
guidata(hObject, handles);

% UIWAIT makes matlab_hw1 wait for user response (see UIRESUME)
% uiwait(handles.figure1);
axes(handles.axes1);
title('Function Graphs')
grid on;


function varargout = matlab_hw1_OutputFcn(hObject, eventdata, handles) 

varargout{1} = handles.output;

function listbox1_Callback(hObject, eventdata, handles)

fmenu=findobj(gcbf, 'Tag','listbox1');
fsec=get(fmenu,'Value');
if fsec==1
    nyquist_function;
end
if fsec==2
    stepresponse_func;
end


function listbox1_CreateFcn(hObject, eventdata, handles)

if ispc && isequal(get(hObject,'BackgroundColor'), get(0,'defaultUicontrolBackgroundColor'))
    set(hObject,'BackgroundColor','white');
end



function pushbutton1_Callback(hObject, eventdata, handles)

global x f 

listbox=findobj(gcbf,'Tag','listbox1');

fsel=get(listbox,'Value');

axesH=handles.axes1;

if fsel==1
  axes(axesH)
  nyquist(x,f);
  title('Nyquist Plot Diagram',"FontSize",6,"FontWeight","bold")
  grid on;
end
if fsel==2
    axes(axesH)
    step(x,f);
    title('Step Response Plot Diagram','FontSize',6,'FontWeight',"bold");
    grid on;
end

function pushbutton2_Callback(hObject, eventdata, handles)

[filename,pathname,filterindex]=uiputfile( ...
    {'.*jpg','JPG Image (.*jpg)';'.bmp','Windows Bitmap (.*bmp)'; '*.*','All Files (*.*)'} ...
    ,'Save As');
f=getframe(handle.axes1);
[x f]=frame2im(f);
imwrite(x,filename);


function pushbutton3_Callback(hObject, eventdata, handles)

close


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

% Last Modified by GUIDE v2.5 04-Dec-2023 21:05:35

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

% Choose default command line output for nyquist_function
handles.output = hObject;

% Update handles structure
guidata(hObject, handles);

function varargout = nyquist_function_OutputFcn(hObject, eventdata, handles) 

varargout{1} = handles.output;



function edit1_Callback(hObject, eventdata, handles)

function edit1_CreateFcn(hObject, eventdata, handles)

if ispc && isequal(get(hObject,'BackgroundColor'), get(0,'defaultUicontrolBackgroundColor'))
    set(hObject,'BackgroundColor','white');
end



function edit2_Callback(hObject, eventdata, handles)

function edit2_CreateFcn(hObject, eventdata, handles)

if ispc && isequal(get(hObject,'BackgroundColor'), get(0,'defaultUicontrolBackgroundColor'))
    set(hObject,'BackgroundColor','white');
end



function edit3_Callback(hObject, eventdata, handles)

function edit3_CreateFcn(hObject, eventdata, handles)
ave 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 pushbutton1.
function pushbutton1_Callback(hObject, eventdata, handles)

global x f

num=str2sym(get(handles.edit1,'String'));
denum=str2sym(get(handles.edit2,'String'));

c=str2double(split(get(handles.edit3,'String')));

num1=sym2poly(num);
denum1=sym2poly(denum);

f=tf(num1,denum1);
x=logspace(c(1),c(2));


% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)


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

% Last Modified by GUIDE v2.5 04-Dec-2023 21:38:28

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

% Choose default command line output for stepresponse_func
handles.output = hObject;

% Update handles structure
guidata(hObject, handles);

% UIWAIT makes stepresponse_func wait for user response (see UIRESUME)
% uiwait(handles.figure1);


% --- Outputs from this function are returned to the command line.
function varargout = stepresponse_func_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;



function edit5_Callback(hObject, eventdata, handles)
% hObject    handle to edit5 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)

% Hints: get(hObject,'String') returns contents of edit5 as text
%        str2double(get(hObject,'String')) returns contents of edit5 as a double


% --- Executes during object creation, after setting all properties.
function edit5_CreateFcn(hObject, eventdata, handles)
% hObject    handle to edit5 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    empty - handles not created until after all CreateFcns called

% Hint: edit 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



function edit12_Callback(hObject, eventdata, handles)
% hObject    handle to edit12 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)

% Hints: get(hObject,'String') returns contents of edit12 as text
%        str2double(get(hObject,'String')) returns contents of edit12 as a double


% --- Executes during object creation, after setting all properties.
function edit12_CreateFcn(hObject, eventdata, handles)
% hObject    handle to edit12 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    empty - handles not created until after all CreateFcns called

% Hint: edit 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



function edit13_Callback(hObject, eventdata, handles)
% hObject    handle to edit13 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)

% Hints: get(hObject,'String') returns contents of edit13 as text
%        str2double(get(hObject,'String')) returns contents of edit13 as a double


% --- Executes during object creation, after setting all properties.
function edit13_CreateFcn(hObject, eventdata, handles)
% hObject    handle to edit13 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    empty - handles not created until after all CreateFcns called

% Hint: edit 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



function edit14_Callback(hObject, eventdata, handles)
% hObject    handle to edit14 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)

% Hints: get(hObject,'String') returns contents of edit14 as text
%        str2double(get(hObject,'String')) returns contents of edit14 as a double


% --- Executes during object creation, after setting all properties.
function edit14_CreateFcn(hObject, eventdata, handles)
% hObject    handle to edit14 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    empty - handles not created until after all CreateFcns called

% Hint: edit 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


function pushbutton1_Callback(hObject, eventdata, handles)

global x f 

num=str2sym(get(handles.edit15,'String'));
denum=str2sym(get(handles.edit13, 'String'));

a=str2double(split(get(handles.edit14,'String'),':'));

num1=sym2poly(num);
denum1=sym2poly(denum);

f=tf(num1,denum1);
x=linspace(a(1),a(2));




function edit15_Callback(hObject, eventdata, handles)
% hObject    handle to edit15 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)

% Hints: get(hObject,'String') returns contents of edit15 as text
%        str2double(get(hObject,'String')) returns contents of edit15 as a double


% --- Executes during object creation, after setting all properties.
function edit15_CreateFcn(hObject, eventdata, handles)
% hObject    handle to edit15 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    empty - handles not created until after all CreateFcns called

% Hint: edit 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