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

% Last Modified by GUIDE v2.5 21-Nov-2007 15:50:23

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

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

% Update handles structure
guidata(hObject, handles);

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


% --- Outputs from this function are returned to the command line.
function varargout = epigui_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 edit_a_Callback(hObject, eventdata, handles)
% hObject    handle to edit_a (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 edit_a as text
%        str2double(get(hObject,'String')) returns contents of edit_a as a double


% --- Executes during object creation, after setting all properties.
function edit_a_CreateFcn(hObject, eventdata, handles)
% hObject    handle to edit_a (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 edit_b_Callback(hObject, eventdata, handles)
% hObject    handle to edit_b (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 edit_b as text
%        str2double(get(hObject,'String')) returns contents of edit_b as a double


% --- Executes during object creation, after setting all properties.
function edit_b_CreateFcn(hObject, eventdata, handles)
% hObject    handle to edit_b (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 edit_c_Callback(hObject, eventdata, handles)
% hObject    handle to edit_c (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 edit_c as text
%        str2double(get(hObject,'String')) returns contents of edit_c as a double


% --- Executes during object creation, after setting all properties.
function edit_c_CreateFcn(hObject, eventdata, handles)
% hObject    handle to edit_c (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


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

theta=linspace(0,8*pi,500)';
a=str2num(get(handles.edit_a,'String'));


b=str2num(get(handles.edit_b,'String'));


c=str2num(get(handles.edit_c,'String'));

[x,y]=myFunc(theta,a,b,c);

plot(handles.MyAxes,x,y)
axis equal

function [x,y]=myFunc(theta,a,b,c)
x=(a+b)*cos(theta)-c*cos((((a+b)/b)*theta));
y=(a+b)*sin(theta)-c*sin((((a+b)/b)*theta));