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function varargout = WaveDisplay(varargin)
% WAVEDISPLAY MATLAB code for WaveDisplay.fig
% WAVEDISPLAY, by itself, creates a new WAVEDISPLAY or raises the existing
% singleton*.
%
% H = WAVEDISPLAY returns the handle to a new WAVEDISPLAY or the handle to
% the existing singleton*.
%
% WAVEDISPLAY('CALLBACK',hObject,eventData,handles,...) calls the local
% function named CALLBACK in WAVEDISPLAY.M with the given input arguments.
%
% WAVEDISPLAY('Property','Value',...) creates a new WAVEDISPLAY or raises the
% existing singleton*. Starting from the left, property value pairs are
% applied to the GUI before WaveDisplay_OpeningFcn gets called. An
% unrecognized property name or invalid value makes property application
% stop. All inputs are passed to WaveDisplay_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 WaveDisplay
% Last Modified by GUIDE v2.5 22-Aug-2025 08:56:16
% Begin initialization code - DO NOT EDIT
gui_Singleton = 1;
gui_State = struct('gui_Name', mfilename, ...
'gui_Singleton', gui_Singleton, ...
'gui_OpeningFcn', @WaveDisplay_OpeningFcn, ...
'gui_OutputFcn', @WaveDisplay_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 WaveDisplay is made visible.
function WaveDisplay_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 WaveDisplay (see VARARGIN)
% Choose default command line output for WaveDisplay
handles.output = hObject;
diaplay_wave(handles); %绘制初始波形
% Update handles structure
guidata(hObject, handles);
% UIWAIT makes WaveDisplay wait for user response (see UIRESUME)
% uiwait(handles.figure1);
% --- Outputs from this function are returned to the command line.
function varargout = WaveDisplay_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 slider movement.
function slider1_Callback(hObject, eventdata, handles)
% hObject handle to slider1 (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
Am = get(handles.slider1,'Value'); % 获取滑动条1幅度值
Am_arg = sprintf('%f',Am); % 数据格式化为字符串或字符向量
set(handles.edit1,'String',Am_arg); % 编辑框1显示幅度值
diaplay_wave(handles);
% --- Executes during object creation, after setting all properties.
function slider1_CreateFcn(hObject, eventdata, handles)
% hObject handle to slider1 (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.
if isequal(get(hObject,'BackgroundColor'), get(0,'defaultUicontrolBackgroundColor'))
set(hObject,'BackgroundColor',[.9 .9 .9]);
end
% --- Executes on slider movement.
function slider2_Callback(hObject, eventdata, handles)
% hObject handle to slider2 (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
Ph = get(handles.slider2,'Value'); % 获取滑动条2相位值
Ph_arg = sprintf('%f',Ph); % 数据格式化为字符串或字符向量
set(handles.edit2,'String',Ph_arg); % 编辑框2显示相位值
diaplay_wave(handles);
% --- Executes during object creation, after setting all properties.
function slider2_CreateFcn(hObject, eventdata, handles)
% hObject handle to slider2 (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.
if isequal(get(hObject,'BackgroundColor'), get(0,'defaultUicontrolBackgroundColor'))
set(hObject,'BackgroundColor',[.9 .9 .9]);
end
% --- Executes on slider movement.
function slider3_Callback(hObject, eventdata, handles)
% hObject handle to slider2 (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
Fr = get(handles.slider3,'Value'); % 获取滑动条3频率值
Fr_arg = sprintf('%f',Fr); % 数据格式化为字符串或字符向量
set(handles.edit3,'String',Fr_arg); % 编辑框3显示频率值
diaplay_wave(handles);
% --- Executes during object creation, after setting all properties.
function slider3_CreateFcn(hObject, eventdata, handles)
% hObject handle to slider2 (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.
if isequal(get(hObject,'BackgroundColor'), get(0,'defaultUicontrolBackgroundColor'))
set(hObject,'BackgroundColor',[.9 .9 .9]);
end
function edit1_Callback(hObject, eventdata, handles)
% hObject handle to edit1 (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 edit1 as text
% str2double(get(hObject,'String')) returns contents of edit1 as a double
Am = str2double(get(handles.edit1,'String')); % 字符串或字符向量格式化为数据
set(handles.slider1,'Value',Am); % 滑动条1的值跟着文本框1变化
diaplay_wave(handles); % 重新绘制波形
% --- Executes during object creation, after setting all properties.
function edit1_CreateFcn(hObject, eventdata, handles)
% hObject handle to edit1 (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 edit2_Callback(hObject, eventdata, handles)
% hObject handle to edit2 (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 edit2 as text
% str2double(get(hObject,'String')) returns contents of edit2 as a double
Ph = str2double(get(handles.edit2,'String')); % 字符串或字符向量格式化为数据
set(handles.slider2,'Value',Ph); % 滑动条2的值跟着文本框2变化
diaplay_wave(handles); % 重新绘制波形
% --- Executes during object creation, after setting all properties.
function edit2_CreateFcn(hObject, eventdata, handles)
% hObject handle to edit2 (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 edit3_Callback(hObject, eventdata, handles)
% hObject handle to edit3 (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 edit3 as text
% str2double(get(hObject,'String')) returns contents of edit3 as a double
Fr = str2double(get(handles.edit3,'String')); % 字符串或字符向量格式化为数据
set(handles.slider3,'Value',Fr); % 滑动条3的值跟着文本框3变化
diaplay_wave(handles); % 重新绘制波形
function diaplay_wave(handles)
global Fs
global Am
global Ph
global Fr
Fs = 44100; % 采样频率Fs(Hz)
dt = 1.0/Fs;
T = 2;
N = T/dt; % 最大X坐标
t = linspace(0,T,N); % X坐标轴及其范围
% 获取文本框1字符/字符串，并格式化为数据类型（幅度）
Am = str2double(get(handles.edit1,'String'));
% 获取文本框2字符/字符串，并格式化为数据类型（相位）
Ph = str2double(get(handles.edit2,'String'));
% 获取文本框3字符/字符串，并格式化为数据类型（频率）
Fr = str2double(get(handles.edit3,'String'));
var = get(handles.popupmenu1,'Value');
switch var
case 1
f0 = Am*sin(2*pi*Fr*t + Ph); % 正弦函数
case 2
f0 = Am*cos(2*pi*Fr*t + Ph); % 余弦函数
case 3
f0 = Am*square(2*pi*Fr*t + Ph); % 方波
case 4
f0 = Am*sawtooth(2*pi*Fr*t + Ph,0.5); % 三角波
case 5
f0 = Am*sawtooth(pi*Fr*t + Ph); % 锯齿波
otherwise
disp('Error Option!');
end
plot(handles.axes1,t, f0, 'b', 'LineWidth', 1.5); % 绘制函数图像，红色，线宽为1.5
axis(handles.axes1,[0 0.5 -2500 2500]); % 确定横/纵坐标轴范围
grid(handles.axes1);
% --- Executes on selection change in popupmenu1.
function popupmenu1_Callback(hObject, eventdata, handles)
% hObject handle to popupmenu1 (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles structure with handles and user data (see GUIDATA)
% Hints: contents = cellstr(get(hObject,'String')) returns popupmenu1 contents as cell array
% contents{get(hObject,'Value')} returns selected item from popupmenu1
diaplay_wave(handles); % 重新绘制波形
% --- Executes during object creation, after setting all properties.
function popupmenu1_CreateFcn(hObject, eventdata, handles)
% hObject handle to popupmenu1 (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
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