그리드 레이아웃을 사용하여 구성요소 위치와 크기 조정을 관리하는 앱

https://kr.mathworks.com/help/matlab/creating_guis/app-or-gui-with-instrument-controls.html 

그리드 레이아웃을 사용하여 구성요소 위치와 크기 조정을 관리하는 앱 - MATLAB & Simulink - MathWorks

 

 

핵심코드

 

1) Properties (Access = Private)

 

프로그램 코드 작성 시 사용할 변수 선언

properties (Access = private)         autoUpdate     end

 

2) methods (Access = Private)

 

2-1) Plot을 업데이트 하는 기능의 함수

function updatePlot(app)             signalLength = app.SignalLengthsEditField.Value ;             frequency = app.FrequencyEditField.Value ;             plotType = app.PlotTypeSwitch.Value ;                          p = generatePulse(app) ;             t = -signalLength/2:1/frequency:signalLength/2;                          if strcmp(plotType,'Pulse')                 plot(app.PulsePlotUIAxes, t, p);                 xlabel(app.PulsePlotUIAxes,'Time(s)');             else                 lp=length(p);                 Y=fft(p);                 sig=abs(Y(1:ceil(lp/2)));                 f=linspace(0, frequency/2, ceil(lp/2));                 plot(app.PulsePlotUIAxes, f(sig>1e-4), sig(sig>1e-4));                 xlabel(app.PulsePlotUIAxes,'Frequency (Hz)');             end               end

 

2-2) Pulse를 생성하는 기능의 함수

function result = generatePulse(app)             frequency = app.FrequencyEditField.Value;             signalLength = app.SignalLengthsEditField.Value;             edge = app.EdgeKnob.Value;             window = app.WindowKnob.Value;             modulation = str2double(app.ModulationKnob.Value);             lowpass = app.LowPassKnob.Value;             highpass = app.HighPassKnob.Value;             dispersion = str2double(app.DispersionKnob.Value);             startFrequency = 10;             stopFrequency = 20;             t = -signalLength/2 : 1/frequency : signalLength/2;             sig = (signalLength/(8*edge))^2;             switch app.TypeDropDown.Value                 case 'gaussian'                     y = exp(-(t).^2/sig) ;                 case 'sinc'                     x = 2*pi*edge*50.*t/(5*signalLength) ;                     y = sin(x)./x ;                     y(x==0) = 1 ;                 case 'square'                     y = (t > -signalLength/edge/2) & (t < signalLength/edge/2) ;                 case 'triangle'                     y = (t + signalLength/edge/2).*(t < 0) - (t - signalLength/edge/2).*(t >= 0);                     y(y < 0) = 0 ;                 case 'monocycle'                     if (sig == 0)                         y = t ;                     else                         y = 2*t./sig.*exp(-(t).^2/sig) ;                     end                 case 'exponential'                     y = exp(-t*8*edge/signalLength) ;                     y(t<0) = 0 ;                 case 'biexponential'                     y = exp(-abs(t)*8*edge/signalLength) ;                 case 'mexican hat'                     z = t./sqrt(0.75*sig);                     y = sqrt(1/2*pi).*(1-z.^2).*exp(-z.^2/2) ;                 case 'raised cosine'                     rb = 2*edge*50/(5*signalLength);                     x = pi.*t.*rb ;                     y = sin(x)./x ;                     y(x==0) = 1 ;                     y = y.*(cos(2*pi*rb.*t)./(1 - (4*rb.*t).^2));                 case 'double sinc'                     x1 = 2*stopFrequency*pi.*t ;                     x2 = 2*startFrequency*pi.*t ;                     y1 = sin(x1)./x1 ;                     y1(x1==0) = 1 ;                     y2 = sin(x2)./x2 ;                     y2(x2==0) = 1 ;                     y = stopFrequency*y1 - startFrequency*y2;                 case 'sinc squared'                     x = 2*pi*edge*16.*t/(5*signalLength) ;                     y = sin(x)./x ;                     y(x==0) = 1 ;                     y = y.^2 ;                 case 'sweep'                     theta = startFrequency.*(t + signalLength/2) + ...                         ((stopFrequency - startFrequency)/(signalLength)).*(t+signalLength/2).^2;                     y = real(exp(1j*(2*pi.*theta - pi/2)));             end             if (lowpass < 1) || (highpass > 0) || (dispersion ~= 0)                 c = length(y) ;             end                          s = fft(y);             sA = abs(s);             sP = angle(s);             if (lowpass < 1)                 cP = ceil(lowpass*c/2);                 if (cP == 0)                     sA(:) = 0;                 else                     sA(cP:end-cP+2) = 0;                 end             end                          if (highpass > 0)                 cP = floor(highpass*c/2);                 if (cP ~= 0)                     sA(1:cP) = 0;                     sA(end-cP+2:end) = 0;                 end             end                          if (dispersion ~= 0)                 pp = dispersion.*linspace(0,2*pi,c);                 sP = sP + pp;             end             s2 = sA.*cos(sP) + 1j*sA.*sin(sP);             y = real(ifft(s2));                          if (window > 0)                 c = length(y);                 w = ones(size(y));                 p1 = floor(c*window/2);                 % Window is defined in three sections: taper, constant, taper                 w(1:p1+1) = (-cos((0:p1)/p1*pi)+1)/2;                 w(end-p1:end) = (cos((0:p1)/p1*pi)+1)/2;                 y=w.*y;             end                          if modulation ~= 0                 y = y.*cos(pi*t*modulation);             end             result = y./max(abs(y)) ;         end     end

 

3) Callback Function

 

3-1) 앱이 시작될 때 데이터 로딩 및 초기화를 수행하는 기능

function startupFcn(app)             app.AutoUpdateSwitch.Value = 'on';             app.PlotTypeSwitch.Value = 'Pulse';             app.PlotButton.Enable = 'off';             app.autoUpdate = 1;             updatePlot(app)         end

 

3-2) Plot 버튼을 Push할 때의 콜백함수

function PlotButtonPushed(app, event)             updatePlot(app)         end

 

3-3) Auto Update의 스위치를 변환할 때의 콜백함수

function AutoUpdateSwitchValueChanged(app, event)             if strcmp(app.AutoUpdateSwitch.Value, 'on')                 app.autoUpdate = 1;                 app.PlotButton.Enable = "off";                 app.AutoUpdateLamp.Color = [0 1 0];             else                 app.autoUpdate = 0;                 app.PlotButton.Enable = 'on';                 app.AutoUpdateLamp.Color = [0.5 0.5 0.5];             end         end

 

3-4) Edge Knob의 값이 변화할 때의 콜백함수

function EdgeKnobValueChanged(app, event)             if app.autoUpdate                 updatePlot(app)             end         end