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Windkessel.m
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Windkessel.m
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function varargout = Windkessel(varargin)
% WINDKESSEL MATLAB code for Windkessel.fig
% WINDKESSEL, by itself, creates a new WINDKESSEL or raises the existing
% singleton*.
%
% H = WINDKESSEL returns the handle to a new WINDKESSEL or the handle to
% the existing singleton*.
%
% WINDKESSEL('CALLBACK',hObject,eventData,handles,...) calls the local
% function named CALLBACK in WINDKESSEL.M with the given input arguments.
%
% WINDKESSEL('Property','Value',...) creates a new WINDKESSEL or raises the
% existing singleton*. Starting from the left, property value pairs are
% applied to the GUI before Windkessel_OpeningFcn gets called. An
% unrecognized property name or invalid value makes property application
% stop. All inputs are passed to Windkessel_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 Windkessel
% Last Modified by GUIDE v2.5 10-Jul-2018 19:20:51
% Begin initialization code - DO NOT EDIT
gui_Singleton = 1;
gui_State = struct('gui_Name', mfilename, ...
'gui_Singleton', gui_Singleton, ...
'gui_OpeningFcn', @Windkessel_OpeningFcn, ...
'gui_OutputFcn', @Windkessel_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 Windkessel is made visible.
function Windkessel_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 Windkessel (see VARARGIN)
backgroundImage = imread('3E.png');
%select the axes
axes(handles.axes1);
%place image onto the axes
image(backgroundImage);
%remove the axis tick marks
axis off
% Choose default command line output for Windkessel
handles.output = hObject;
% Update handles structure
guidata(hObject, handles);
% UIWAIT makes Windkessel wait for user response (see UIRESUME)
% uiwait(handles.figure1);
% --- Outputs from this function are returned to the command line.
function varargout = Windkessel_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 pp = inlet(t) %定义样条插值方法插值得到任意点的函数值
global t2;
global v2;
pp=interp1(t2,v2,t,'spline');
function f = p2f( x,y,R,r,C,h ) %定义压力到流量的求解函数
f=-(R+r)/(C*R*r)*y+1/(R*r*C)*inlet(x)+(inlet(x+h)-inlet(x))/(r*h);
function g = f2p( x,y,R,r,C,h ) %定义流量到压力的求解函数
g=-1/(C*R)*y+(R+r)/(R*C)*inlet(x)+r*(inlet(x+h)-inlet(x))/h;
% --- Executes on button press in pushbutton4.
function pushbutton4_Callback(hObject, eventdata, handles)
% hObject handle to pushbutton4 (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles structure with handles and user data (see GUIDATA)
global I;
global U;
global x;
R_text = get(handles.edit1,'String');
R = str2num (R_text);
C_text = get(handles.edit2,'String');
C = str2num (C_text);
r_text = get(handles.edit3,'String');
r = str2num (r_text);
T_text = get(handles.edit5,'String');
T = str2num (T_text);
h_text = get(handles.edit6,'String');
h = str2num (h_text);
IC_text=get(handles.edit7,'String');
IC=str2num(IC_text);
k=T/h;
x=zeros(1,k+1);
x(1+k)=T;
I=zeros(1,k+1);
U=zeros(1,1+k);
I(1)=IC; %定义流量初值
for n=2:k+1 %四阶龙格库塔方法
x(n-1)=(n-2)*h;
K1=p2f(x(n-1),I(n-1),R,r,C,h);
K2=p2f(x(n-1)+h/2,I(n-1)+h*K1/2,R,r,C,h);
K3=p2f(x(n-1)+h/2,I(n-1)+h*K2/2,R,r,C,h);
K4=p2f(x(n-1)+h,I(n-1)+h*K3,R,r,C,h);
I(n)=I(n-1)+h*(K1+2*K2+2*K3+K4)/6;
end
axes(handles.axes2);
plot(x,I,'-r');
guidata(hObject, handles);
% --- Executes on button press in pushbutton5.
function pushbutton5_Callback(hObject, eventdata, handles)
% hObject handle to pushbutton5 (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles structure with handles and user data (see GUIDATA)
global I;
global U;
global x;
R_text = get(handles.edit1,'String');
R = str2num (R_text);
C_text = get(handles.edit2,'String');
C = str2num (C_text);
r_text = get(handles.edit3,'String');
r = str2num (r_text);
T_text = get(handles.edit5,'String');
T = str2num (T_text);
h_text = get(handles.edit6,'String');
h = str2num (h_text);
IC_text=get(handles.edit7,'String');
IC=str2num(IC_text);
k=T/h;
x=zeros(1,k+1);
x(1+k)=T;
I=zeros(1,k+1);
U=zeros(1,1+k);
U(1)=IC; %定义压力初值
for n=2:(1+k) %四阶龙格库塔方法
x(n-1)=(n-2)*h;
K1=f2p(x(n-1),U(n-1),R,r,C,h);
K2=f2p(x(n-1)+h/2,U(n-1)+h*K1/2,R,r,C,h);
K3=f2p(x(n-1)+h/2,U(n-1)+h*K2/2,R,r,C,h);
K4=f2p(x(n-1)+h,U(n-1)+h*K3,R,r,C,h);
U(n)=U(n-1)+h*(K1+2*K2+2*K3+K4)/6;
end
axes(handles.axes2);
plot(x,U,'-r');
guidata(hObject, handles);
% --- Executes on button press in pushbutton2.
function pushbutton2_Callback(hObject, eventdata, handles)
% hObject handle to pushbutton2 (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles structure with handles and user data (see GUIDATA)
global M;
[filename,pathname] = uigetfile({'*.txt','Txt Files(*.txt)';'.xls',...
'Excel Files(.xls)';'*.*','All Files(*.*)'},'Choose a File');
L = length(filename);
str = [pathname,filename];
test0 = filename(1,L-3:L); %读取外部时间序列文件
switch test0
case '.txt'
M = textread(str);
case '.xls'
M = xlsread(str);
end
% --- Executes on button press in pushbutton3.
function pushbutton3_Callback(hObject, eventdata, handles)
% hObject handle to pushbutton3 (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles structure with handles and user data (see GUIDATA)
global U;
global I;
global x;
[filename,pathname]=uiputfile({'*.txt';'*.xls'},'Save as');
L=length(filename);
str=[pathname,filename];
Result=U+I;
ll=length(Result);
for i=1:ll
result(i,1)=x(i);
end
for i=1:ll
result(i,2)=Result(i);
end
test0=filename(1,L-3:L);
[row,col]=size(result); %写出结果时间序列文件
switch test0
case '.txt'
fid = fopen(str,'w');
for i=1:row
for j=1:col
fprintf(fid,'%f\t',result(i,j));
end
fprintf(fid,'\r\n');
end
fclose(fid);
case '.xls'
xlswrite(str,result);
end
function edit1_Callback(hObject, eventdata, handles) %读取R
% 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)
input = str2num(get(hObject,'String'));
%checks to see if input is empty. if so, default input1_editText to zero
if (isempty(input))
set(hObject,'String','0')
end
guidata(hObject, handles);
% Hints: get(hObject,'String') returns contents of edit1 as text
% str2double(get(hObject,'String')) returns contents of edit1 as a double
% --- 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) %读取C
% 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)
input = str2num(get(hObject,'String'));
%checks to see if input is empty. if so, default input1_editText to zero
if (isempty(input))
set(hObject,'String','0')
end
guidata(hObject, handles);
% Hints: get(hObject,'String') returns contents of edit2 as text
% str2double(get(hObject,'String')) returns contents of edit2 as a double
% --- 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) %读取r
% 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)
input = str2num(get(hObject,'String'));
%checks to see if input is empty. if so, default input1_editText to zero
if (isempty(input))
set(hObject,'String','0')
end
guidata(hObject, handles);
% Hints: get(hObject,'String') returns contents of edit3 as text
% str2double(get(hObject,'String')) returns contents of edit3 as a double
% --- Executes during object creation, after setting all properties.
function edit3_CreateFcn(hObject, eventdata, handles)
% hObject handle to edit3 (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 pushbutton1.
function pushbutton1_Callback(hObject, eventdata, handles) %样条拟合外部时间序列
% hObject handle to pushbutton1 (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles structure with handles and user data (see GUIDATA)
global M;
global t2;
global v2;
T_text = get(handles.edit5,'String');
T = str2num(T_text);
h_text = get(handles.edit6,'String');
h = str2num(h_text);
s_text = get(handles.edit4,'String');
s = str2num(s_text);
[row, col] = size(M);
t = M(:,1);
v = M(:,2);
ss = 2-length(s_text);
m = row-1;
%t1 = zeros(row,1);
% for i = 1:row
% t1(i,1)=round(t(i),ss);matlab可以用round将double格式转化为整型
% end
%可以用下面一行代替
t1 = roundn(t, ss);
T0 = t1(row,1) - t1(1,1)
n = round(T0/s);%转化为整型
k_max = fix(T/T0)+1;
for k=1:k_max
for i=1:m+1
t2((k-1)*m+i,1) = t1(i,1) + (k-1)*t1(row,1);
v2((k-1)*m+i,1) = v(i);
end
end
% x1 = zeros(n+1,1);之前出现的错误为错误使用zeros,size必须为整数,...
%n需要是整数,在第345行加上round,转化为整型
% x1(1,1) = t1(1,1);
% for i = 1:n+1
% x1(i,1) = x1(1,1)+(i-1)*s;
% end
%可用下面的矩阵化运算代替
x1 = t1(1,1) + (0:n)' * s;
for k=1:k_max
for i=1:n+1
x2((k-1)*n+i)=x1(i,1)+(k-1)*T0;
end
end
% 确保t2升序,并与v2保持对应关系
temp = sortrows([t2, v2], 1);
t2 = temp(:, 1);
v2 = temp(:, 2);
y2 = interp1(t2, v2, x2,'poly');
figure
% plot(x1,'ob');
% hold on
% plot(t1,v,'-g');
% hold on
plot(x2,y2,'-r');
guidata(hObject, handles);
function edit4_Callback(hObject, eventdata, handles) %读取拟合间隔
% hObject handle to edit4 (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles structure with handles and user data (see GUIDATA)
input = str2num(get(hObject,'String'));
%checks to see if input is empty. if so, default input1_editText to zero
if (isempty(input))
set(hObject,'String','0')
end
guidata(hObject, handles);
% Hints: get(hObject,'String') returns contents of edit4 as text
% str2double(get(hObject,'String')) returns contents of edit4 as a double
% --- Executes during object creation, after setting all properties.
function edit4_CreateFcn(hObject, eventdata, handles)
% hObject handle to edit4 (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 edit5_Callback(hObject, eventdata, handles) %读取总求解时间
% 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)
input = str2num(get(hObject,'String'));
%checks to see if input is empty. if so, default input1_editText to zero
if (isempty(input))
set(hObject,'String','0')
end
guidata(hObject, handles);
% 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 edit6_Callback(hObject, eventdata, handles) %读取时间步长
% hObject handle to edit6 (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles structure with handles and user data (see GUIDATA)
input = str2num(get(hObject,'String'));
%checks to see if input is empty. if so, default input1_editText to zero
if (isempty(input))
set(hObject,'String','0')
end
guidata(hObject, handles);
% Hints: get(hObject,'String') returns contents of edit6 as text
% str2double(get(hObject,'String')) returns contents of edit6 as a double
% --- Executes during object creation, after setting all properties.
function edit6_CreateFcn(hObject, eventdata, handles)
% hObject handle to edit6 (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 edit7_Callback(hObject, eventdata, handles)
% hObject handle to edit7 (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles structure with handles and user data (see GUIDATA)
input = str2num(get(hObject,'String'));
%checks to see if input is empty. if so, default input1_editText to zero
if (isempty(input))
set(hObject,'String','0')
end
guidata(hObject, handles);
% Hints: get(hObject,'String') returns contents of edit7 as text
% str2double(get(hObject,'String')) returns contents of edit7 as a double
% --- Executes during object creation, after setting all properties.
function edit7_CreateFcn(hObject, eventdata, handles)
% hObject handle to edit7 (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