fourierexpo.m

非常好的数字处理教程

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

% Last Modified by GUIDE v2.5 01-Mar-2005 14:15:32

% Begin initialization code - DO NOT EDIT
gui_Singleton = 1;
gui_State = struct('gui_Name',       mfilename, ...
                   'gui_Singleton',  gui_Singleton, ...
                   'gui_OpeningFcn', @fourierexpo_OpeningFcn, ...
                   'gui_OutputFcn',  @fourierexpo_OutputFcn, ...
                   'gui_LayoutFcn',  [] , ...
                   'gui_Callback',   []);
if nargin & isstr(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 fourierexpo is made visible.
function fourierexpo_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 fourierexpo (see VARARGIN)

% Choose default command line output for fourierexpo
	handles.output = hObject;
	guidata(hObject, handles);
	set(gcf,'UserData',handles);
	fourierexpofn;

% This sets up the initial plot - only do when we are invisible
% so window can get raised using fourierexpo.
if (nargin > 3)
	datastruct = varargin{1};
	fourierexpofn('readinput',datastruct);
end

% --- Outputs from this function are returned to the command line.
function varargout = fourierexpo_OutputFcn(hObject, eventdata, handles)
	varargout{1} = handles.output;


% --------------------------------------------------------------------
function FileMenu_Callback(hObject, eventdata, handles)


% --------------------------------------------------------------------
function OpenMenuItem_Callback(hObject, eventdata, handles)
	fourierexpofn 'loadsound';

% --------------------------------------------------------------------
function PrintMenuItem_Callback(hObject, eventdata, handles)
	fourierexpofn 'print';

% --------------------------------------------------------------------
function CloseMenuItem_Callback(hObject, eventdata, handles)
	fourierexpofn 'close';


% --- Executes on button press in zoomin.
function zoomin_Callback(hObject, eventdata, handles)
	fourierexpofn 'zoomin';

% --- Executes on button press in zoomout.
function zoomout_Callback(hObject, eventdata, handles)
	fourierexpofn 'zoomout';

% --- Executes on button press in play.
function play_Callback(hObject, eventdata, handles)
	fourierexpofn 'playsound';

% --- Executes on button press in dB.
function dB_Callback(hObject, eventdata, handles)
	fourierexpofn 'db';


% --- Executes during object creation, after setting all properties.
function fftsize_CreateFcn(hObject, eventdata, handles)
if ispc
    set(hObject,'BackgroundColor','white');
else
    set(hObject,'BackgroundColor',get(0,'defaultUicontrolBackgroundColor'));
end


% --- Executes on selection change in fftsize.
function fftsize_Callback(hObject, eventdata, handles)
	fourierexpofn 'fftsize';


% --- Executes during object creation, after setting all properties.
function Window_CreateFcn(hObject, eventdata, handles)
if ispc
    set(hObject,'BackgroundColor','white');
else
    set(hObject,'BackgroundColor',get(0,'defaultUicontrolBackgroundColor'));
end


% --- Executes on selection change in Window.
function Window_Callback(hObject, eventdata, handles)
	fourierexpofn 'window';

% --- Executes during object creation, after setting all properties.
function colormap_CreateFcn(hObject, eventdata, handles)
if ispc
    set(hObject,'BackgroundColor','white');
else
    set(hObject,'BackgroundColor',get(0,'defaultUicontrolBackgroundColor'));
end

% --- Executes on button press in print.
function print_Callback(hObject, eventdata, handles)
	fourierexpofn 'print';


% --- Executes on button press in logfreq.
function logfreq_Callback(hObject, eventdata, handles)
	fourierexpofn 'logfreq';


% --- Executes on button press in smoothfft.
function smoothfft_Callback(hObject, eventdata, handles)
	fourierexpofn 'smoothfft';


% --------------------------------------------------------------------
function Untitled_1_Callback(hObject, eventdata, handles)
% hObject    handle to Untitled_1 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)


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

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


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


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

% Hint: slider controls usually have a light gray background, change
%       'usewhitebg' to 0 to use default.  See ISPC and COMPUTER.
usewhitebg = 1;
if usewhitebg
    set(hObject,'BackgroundColor',[.9 .9 .9]);
else
    set(hObject,'BackgroundColor',get(0,'defaultUicontrolBackgroundColor'));
end


% --- Executes on slider movement.
function freqzoom_Callback(hObject, eventdata, handles)
% hObject    handle to freqzoom (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,'Value') returns position of slider
%        get(hObject,'Min') and get(hObject,'Max') to determine range of slider
	fourierexpofn 'freqzoom';


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

% Hint: slider controls usually have a light gray background, change
%       'usewhitebg' to 0 to use default.  See ISPC and COMPUTER.
usewhitebg = 1;
if usewhitebg
    set(hObject,'BackgroundColor',[.9 .9 .9]);
else
    set(hObject,'BackgroundColor',get(0,'defaultUicontrolBackgroundColor'));
end


% --- Executes on slider movement.
function ampzoom_Callback(hObject, eventdata, handles)
% hObject    handle to ampzoom (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,'Value') returns position of slider
%        get(hObject,'Min') and get(hObject,'Max') to determine range of slider
	fourierexpofn 'ampzoom';


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


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

% Hint: get(hObject,'Value') returns toggle state of stem
	fourierexpofn 'stem';


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

% Hint: get(hObject,'Value') returns toggle state of entire
	fourierexpofn 'entire';



function zpfactor_Callback(hObject, eventdata, handles)
% hObject    handle to zpfactor (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 zpfactor as text
%        str2double(get(hObject,'String')) returns contents of zpfactor as a double
    val = round(abs(str2num(get(hObject,'String'))));
    set(hObject,'String',num2str(val));
    fourierexpofn 'zeropad';

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