App designer - I can't resolve two bugs in my programme

Hi,

I was wondering if anyone can have a quick look over my Appdesigner code as there are two bugs I just can't seem to resolve.

The programme is for simulating EM Waves and the Design View looks as shown below:

The problem I am having is in two parts, within the Code View.

Problem 1 is a SWITCH statement which is not chosing CASE 5, and allowing a plot to open where I can input user defined information onto a figure by clicking my mouse button. The other four statements excute fine!

Problem 2 is the plotting on UIAxes 2 using imagesc with elements plotted on top. When I try to plot the hold on doesn't seem to work and the image disappears leaving the contents of the last plot.

I have included the full code in just case the problem may be further up in the programme.

The two problems are highlighted with the code as =============== PROBLEM X ========================= to make it easy to find.

I hope someone may be able to resolve these two problems, as it is driving me mad.

Thanks,

Andy

classdef Time_Reversal_App_Stage3 < matlab.apps.AppBase

    % Properties that correspond to app components
    properties (Access = public)
        UIFigure                       matlab.ui.Figure
        ArraySetupButton               matlab.ui.control.Button
        TransmitButton                 matlab.ui.control.Button
        TimeReverseButton              matlab.ui.control.Button
        SendSignalButton               matlab.ui.control.Button
        TypeofSignalButtonGroup        matlab.ui.container.ButtonGroup
        GaussianPulseButton            matlab.ui.control.RadioButton
        SinewaveButton                 matlab.ui.control.RadioButton
        SelectMediaButtonGroup         matlab.ui.container.ButtonGroup
        UserDefinedButton              matlab.ui.control.RadioButton
        WaveguideButton                matlab.ui.control.RadioButton
        NoLineofSightButton            matlab.ui.control.RadioButton
        LineofSightButton              matlab.ui.control.RadioButton
        FreeSpaceButton                matlab.ui.control.RadioButton
        Offset10EditField              matlab.ui.control.NumericEditField
        Offset10EditFieldLabel         matlab.ui.control.Label
        Distance180EditField           matlab.ui.control.NumericEditField
        Distance180EditFieldLabel      matlab.ui.control.Label
        DistancebetweenTxRxLabel       matlab.ui.control.Label
        Spacing1EditField              matlab.ui.control.NumericEditField
        Spacing1EditFieldLabel         matlab.ui.control.Label
        NoofElements4EditField         matlab.ui.control.NumericEditField
        NoofElements4EditFieldLabel    matlab.ui.control.Label
        ArrayStart10EditField          matlab.ui.control.NumericEditField
        ArrayStart10EditFieldLabel     matlab.ui.control.Label
        ReceiveAntennaParametersLabel  matlab.ui.control.Label
        Receiver50EditField            matlab.ui.control.NumericEditField
        Receiver50EditFieldLabel       matlab.ui.control.Label
        Y200EditField                  matlab.ui.control.NumericEditField
        Y200EditFieldLabel             matlab.ui.control.Label
        FundamentalParametersLabel     matlab.ui.control.Label
        X100EditField                  matlab.ui.control.NumericEditField
        X100EditFieldLabel             matlab.ui.control.Label
        UIAxes3                        matlab.ui.control.UIAxes
        UIAxes2                        matlab.ui.control.UIAxes
        UIAxes                         matlab.ui.control.UIAxes
    end

    
    properties (Access = private)
% Inputs: 
% imax: size of grid in x-direction (in number of cells) 
% jmax: size of grid in y-direction (in number of cells) 
% del: size of cell in meters( needs to be less than lambda/10) 
% signal: matrix with row vectors of signal (Input Signal) 
% space: the number of cells between transmitters 
% start: the cell at which the first trasnmitter is located 
% array: the number of elements in the receiving array 
% rstart: the x-coordinate of the first receiver 
% rspace: the spacing between receivers 
% depth: the distance between the receiving array and the transmitting array 
% offset: the distance from zero in the x-direction where the simulation will start 
% media: value between 1 and 5 that deterines the type of environment in which the expermient takes 
%place 
% ER: when media=5, a user defined environment is provided 
% 
% Outputs: 
% E: Outputs the final electric field 
% V: Outputs the received signal at certain points (array elements for forward migration, receiver for 
% reverse migration) 
% frames: a slide show that shows the evolution of E over time. Can be converted into AVI format using 
% movie2avi command 
 % Description
X
Y
receiver
arraystart
elements
arrayspace
rarrayspace
depth
offset
media
signal
er
c
fc
lambda
del
dt
Fs
t
ax
delay
d_hat
stop
temp
E1
V1
E2
send

    end
    

    % Callbacks that handle component events
    methods (Access = private)

        % Value changed function: X100EditField
        function X100EditFieldValueChanged(app, event)
            app.X = app.X100EditField.Value;
            
        end

        % Value changed function: Y200EditField
        function Y200EditFieldValueChanged(app, event)
            app.Y = app.Y200EditField.Value;
            
        end

        % Value changed function: Receiver50EditField
        function Receiver50EditFieldValueChanged(app, event)
            app.receiver = app.Receiver50EditField.Value;
            
        end

        % Value changed function: ArrayStart10EditField
        function ArrayStart10EditFieldValueChanged(app, event)
           app.arraystart = app.ArrayStart10EditField.Value;
            
        end

        % Value changed function: NoofElements4EditField
        function NoofElements4EditFieldValueChanged(app, event)
            app.elements = app.NoofElements4EditField.Value;
            
        end

        % Value changed function: Spacing1EditField
        function Spacing1EditFieldValueChanged(app, event)
            app.arrayspace = app.Spacing1EditField.Value;
            
        end

        % Value changed function: Distance180EditField
        function Distance180EditFieldValueChanged(app, event)
            app.depth = app.Distance180EditField.Value;
            
        end

        % Value changed function: Offset10EditField
        function Offset10EditFieldValueChanged(app, event)
            app.offset = app.Offset10EditField.Value;
            
        end

        % Selection changed function: SelectMediaButtonGroup
        function SelectMediaButtonGroupSelectionChanged(app, event)

            if app.FreeSpaceButton.Value == 1

                app.media = 1;

            elseif app.LineofSightButton.Value == 1

                app.media = 2;

            elseif app.NoLineofSightButton.Value == 1

                app.media = 3;

            elseif app.WaveguideButton.Value  == 1

                app.media = 4;

            elseif app.UserDefinedButton == 1

                app.media = 5;

                if app.media == 5

                app.er;

                else

                app.er = 0; 

                end 
        
            end
        end

        % Selection changed function: TypeofSignalButtonGroup
        function TypeofSignalButtonGroupSelectionChanged(app, event)
           
           app.c = 3E8;

           app.fc = 2.45e9;

           app.lambda = app.c/app.fc;

           % Length in metres of each cell

           app.del = app.lambda/10; %convert into metres

           app.dt = (1/(app.c*sqrt((1/app.del)^2+(1/app.del)^2)));
           
           app.Fs = 1/app.dt;
           
           app.t = 0:1/app.Fs:300/app.Fs-1/app.Fs;
           
% Select the signal

           if app.SinewaveButton.Value == 1
               
               app.signal = sin(2*pi*app.fc*app.t);

           elseif app.GaussianPulseButton.Value == 1
               
               app.signal = gauspuls(app.t,app.fc,0.5);
           
           end
        end

        % Button pushed function: SendSignalButton
        function SendSignalButtonPushed(app, event)
            
            % Read value from X & Y
            
            app.X = app.X100EditField.Value;
            app.Y = app.Y200EditField.Value;

           % Plot chosen signal onto signal transmitted plot
           
           plot(app.UIAxes3,app.signal)
           title(app.UIAxes3,'Signal sent from transmitter')

           % Define axis to plot 
           
            axis(app.UIAxes,'image');
            app.ax = app.UIAxes;

           % Call function FDTD
          
           [app.E1] = fdtd_time_reversal(app.X, app.Y, app.del, app.signal, app.receiver, app.elements, 1, app.arrayspace, 1, app.depth, app.offset, app.media, app.er, app.ax);
           
           imagesc(app.UIAxes,app.E1)
           axis(app.UIAxes, 'image')
           xlim(app.UIAxes, 'tight')
           ylim(app.UIAxes, 'tight')
           drawnow

          [app.V1] = fdtd_time_reversal(app.X, app.Y, app.del, app.signal, app.receiver, app.elements, 1, app.arrayspace, 1, app.depth, app.offset, app.media, app.er, app.ax);
          plot(app.UIAxes3,1:length(app.V1),app.V1)
          title(app.UIAxes3,'Recorded signal at array elements')

        end

        % Button pushed function: TimeReverseButton
        function TimeReverseButtonPushed(app, event)
            
            % Time reversal
            app.elements = app.NoofElements4EditField.Value;

            for k = 1:app.elements

                app.delay(k) = find(abs(app.V1(k,:))>1E-6, 1);
            
            end

            % d_hat represents the delay from the start of the simulation
            % to the time when the first element records a signal

            app.d_hat = min(app.delay);

            % Determine the delay for each signal relative to the first signal

            app.delay = app.delay - app.d_hat;
            app.stop = app.d_hat + app.depth;

            if app.stop >= length(app.V1)
               app.stop = length(app.V1);
            end



% Create the signal to send to the receiver

for k = 1:app.elements

    app.temp(k,:) = [zeros(1,round(2*app.depth)) app.V1(k,app.d_hat:app.stop)];

end

% Flip the signal and normalize to 1

 app.send = fliplr(app.temp/max(max(abs(abs(app.temp)))));

plot(app.UIAxes3, 1:length(app.send),app.send)
title(app.UIAxes3,'Time Reversed Signal')
        end

        % Button pushed function: TransmitButton
        function TransmitButtonPushed(app, event)
 
            
            if app.media == 5 

            app.er; 

            else 

            app.er = 0; 

            end 
               
           % Define axis to plot 
           
            axis(app.UIAxes,'image');
            app.ax = app.UIAxes;
           
            % Call function FDTD

           [app.E2] = fdtd_time_reversal(app.X, app.Y, app.del, app.send, app.arraystart, app.elements, app.receiver , 1, 1, -app.depth, app.offset + app.depth, app.media, app.er, app.ax);
           
           imagesc(app.UIAxes,app.E2)
           axis(app.UIAxes, 'image')
           xlim(app.UIAxes, 'tight')
           ylim(app.UIAxes, 'tight')
           drawnow
        end

        % Button pushed function: ArraySetupButton
        function ArraySetupButtonPushed(app, event)

            % Determine where the array is? 

center = app.arraystart + ((app.elements-1)/2)*app.arrayspace; 
edge1 = app.arraystart; 
edge2 = app.arraystart + (app.elements-1)*app.arrayspace; 
length = (app.offset + app.depth); 
left = app.offset; 
right = app.offset + app.depth; 

%Define the realtive permativitty of each point in the simulation 
app.er=ones(app.X,app.Y); 

pointsy1=round((app.Y-3)*[ 0.7271    0.3093    0.8385    0.5681    0.3704    0.7027    0.5466    0.4449    0.6946    0.6213])+3; 
pointsy2=round((app.Y-3)*[  0.1365    0.0118    0.8939    0.1991    0.2987    0.6614    0.2844    0.4692    0.0648    0.9883])+3; 
pointsx1=round((app.X/2-10)*[ 0.7948    0.9568    0.5226    0.8801    0.1730    0.9797    0.2714    0.2523    0.8757    0.7373])+3; 
pointsx2=round((app.X/2-10)*[0.5828    0.4235    0.5155    0.3340    0.4329    0.2259    0.5798    0.7604    0.5298    0.6405])+(app.X/2+8); 
points=[[pointsx1 pointsx2]' [pointsy1 pointsy2]']; 

scatter=20;

%==================================================================================================================================
%                                                PROBLEM 1 HERE
%===================================================================================================================================

%Provide the desired environment 
nb = 32;

switch app.media

case 1 % Free Space

case 2 % Line of Sight

 for i=1:scatter

 app.er(nb+points(i,1)-2:nb+points(i,1)+2,nb+points(i,2)-2:nb+points(i,2)+2)=100*ones(5,5);
 
 end

 case 3 % No Line of Sight

 app.er(nb+center-4:nb+center+4,nb+left+(right-left)/2-4:nb+left+(right-left)/2+4)=100*ones(9,9);

 for i=1:scatter

 app.er(nb+points(i,1)-2:nb+points(i,1)+2,nb+points(i,2)-2:nb+points(i,2)+2)=100*ones(5,5);

 end

 case 4 % Waveguide

 app.er(nb+edge1-2,nb+(0:length-1))=100*ones(1,length);
 app.er(nb+edge2+2,nb+(0:length-1))=100*ones(1,length);

 case 5 %User Defined Input

figure(1)      

hold on
plot(app.offset,app.receiver,'marker','<','markerfacecolor','y','markeredgecolor','b','linestyle',':', 'markersize', 5) 
hold on 
plot(app.offset + app.depth*ones(1,app.elements),app.arraystart:app.arrayspace:app.arraystart+(app.elements-1)*app.arrayspace,'marker','>','markerfacecolor','y','markeredgecolor','b','linestyle',':','markersize', 5); 

axis equal 
axis([1 app.Y 1 app.X]) 
title('Place Reflectors with Left Mouse Button, Press Right Mouse Button When Finished') 
xlabel('Y') 
ylabel('X') 
view([0 270])

figure(1) 
check=1; 
grid on 
grid minor 

%Allow the user to place their own reflectors 
        while check == 1 
                [x,y,button]=ginput(1); 
                if button==3 
                      check=0; 
                else 
                    plot(round(x),round(y),'marker','square','markerfacecolor','r','markeredgecolor','k','markersize', 5) 
                    axis([1 app.Y 1 app.X]) 
                    app.er(round(y),round(x))=1000; 
                end 
        end 
        
        hold off 
        close 
end

%Plot the simulation space
 

% =======================================================================================================================
%                                                   PROBLEM 2 HERE
% =======================================================================================================================

axis(app.UIAxes2,[1 app.Y 1 app.X],'image') 
colormap(jet) 
imagesc(app.UIAxes2,app.er)
xlim(app.UIAxes2, 'tight')
ylim(app.UIAxes2, 'tight')
hold on
plot(app.UIAxes2,app.offset,app.receiver,'marker','<','markerfacecolor','y','markeredgecolor','b','linestyle',':', 'markersize', 5)
hold on
plot(app.UIAxes2,(app.offset+app.depth)*ones(1,app.elements),app.arraystart:app.arrayspace:app.arraystart+(app.elements-1)*app.arrayspace,'marker','>','markerfacecolor','y','markeredgecolor','b','linestyle',':','markersize', 5) 
xlabel(app.UIAxes2,'Y') 
ylabel(app.UIAxes2,'X')


        end
    end

    % Component initialization
    methods (Access = private)

        % Create UIFigure and components
        function createComponents(app)

            % Create UIFigure and hide until all components are created
            app.UIFigure = uifigure('Visible', 'off');
            app.UIFigure.Position = [100 100 1407 755];
            app.UIFigure.Name = 'MATLAB App';

            % Create UIAxes
            app.UIAxes = uiaxes(app.UIFigure);
            title(app.UIAxes, 'Electromagnetic Wave Simulation')
            xlabel(app.UIAxes, 'Time (mS)')
            ylabel(app.UIAxes, 'E Field (V/m)')
            zlabel(app.UIAxes, 'Z')
            app.UIAxes.Position = [292 270 864 460];

            % Create UIAxes2
            app.UIAxes2 = uiaxes(app.UIFigure);
            xlabel(app.UIAxes2, 'X')
            ylabel(app.UIAxes2, 'Y')
            zlabel(app.UIAxes2, 'Z')
            app.UIAxes2.Position = [80 11 507 237];

            % Create UIAxes3
            app.UIAxes3 = uiaxes(app.UIFigure);
            title(app.UIAxes3, 'Title')
            xlabel(app.UIAxes3, 'Time (mS)')
            ylabel(app.UIAxes3, 'Y')
            zlabel(app.UIAxes3, 'Z')
            app.UIAxes3.Position = [610 11 759 237];

            % Create X100EditFieldLabel
            app.X100EditFieldLabel = uilabel(app.UIFigure);
            app.X100EditFieldLabel.HorizontalAlignment = 'right';
            app.X100EditFieldLabel.Position = [87 690 44 22];
            app.X100EditFieldLabel.Text = 'X (100)';

            % Create X100EditField
            app.X100EditField = uieditfield(app.UIFigure, 'numeric');
            app.X100EditField.ValueChangedFcn = createCallbackFcn(app, @X100EditFieldValueChanged, true);
            app.X100EditField.Position = [146 690 100 22];

            % Create FundamentalParametersLabel
            app.FundamentalParametersLabel = uilabel(app.UIFigure);
            app.FundamentalParametersLabel.HorizontalAlignment = 'center';
            app.FundamentalParametersLabel.FontWeight = 'bold';
            app.FundamentalParametersLabel.Position = [95 719 169 22];
            app.FundamentalParametersLabel.Text = 'Fundamental Parameters';

            % Create Y200EditFieldLabel
            app.Y200EditFieldLabel = uilabel(app.UIFigure);
            app.Y200EditFieldLabel.HorizontalAlignment = 'right';
            app.Y200EditFieldLabel.Position = [87 659 44 22];
            app.Y200EditFieldLabel.Text = 'Y (200)';

            % Create Y200EditField
            app.Y200EditField = uieditfield(app.UIFigure, 'numeric');
            app.Y200EditField.ValueChangedFcn = createCallbackFcn(app, @Y200EditFieldValueChanged, true);
            app.Y200EditField.Position = [146 659 100 22];

            % Create Receiver50EditFieldLabel
            app.Receiver50EditFieldLabel = uilabel(app.UIFigure);
            app.Receiver50EditFieldLabel.HorizontalAlignment = 'right';
            app.Receiver50EditFieldLabel.Position = [55 625 77 22];
            app.Receiver50EditFieldLabel.Text = 'Receiver (50)';

            % Create Receiver50EditField
            app.Receiver50EditField = uieditfield(app.UIFigure, 'numeric');
            app.Receiver50EditField.ValueChangedFcn = createCallbackFcn(app, @Receiver50EditFieldValueChanged, true);
            app.Receiver50EditField.Position = [147 625 100 22];

            % Create ReceiveAntennaParametersLabel
            app.ReceiveAntennaParametersLabel = uilabel(app.UIFigure);
            app.ReceiveAntennaParametersLabel.HorizontalAlignment = 'center';
            app.ReceiveAntennaParametersLabel.FontWeight = 'bold';
            app.ReceiveAntennaParametersLabel.Position = [95 591 170 22];
            app.ReceiveAntennaParametersLabel.Text = 'Receive Antenna Parameters';

            % Create ArrayStart10EditFieldLabel
            app.ArrayStart10EditFieldLabel = uilabel(app.UIFigure);
            app.ArrayStart10EditFieldLabel.HorizontalAlignment = 'right';
            app.ArrayStart10EditFieldLabel.Position = [45 570 87 22];
            app.ArrayStart10EditFieldLabel.Text = 'Array Start (10)';

            % Create ArrayStart10EditField
            app.ArrayStart10EditField = uieditfield(app.UIFigure, 'numeric');
            app.ArrayStart10EditField.ValueChangedFcn = createCallbackFcn(app, @ArrayStart10EditFieldValueChanged, true);
            app.ArrayStart10EditField.Position = [147 570 100 22];

            % Create NoofElements4EditFieldLabel
            app.NoofElements4EditFieldLabel = uilabel(app.UIFigure);
            app.NoofElements4EditFieldLabel.HorizontalAlignment = 'right';
            app.NoofElements4EditFieldLabel.Position = [24 538 112 22];
            app.NoofElements4EditFieldLabel.Text = 'No. of Elements (4) ';

            % Create NoofElements4EditField
            app.NoofElements4EditField = uieditfield(app.UIFigure, 'numeric');
            app.NoofElements4EditField.ValueChangedFcn = createCallbackFcn(app, @NoofElements4EditFieldValueChanged, true);
            app.NoofElements4EditField.Position = [146 538 100 22];

            % Create Spacing1EditFieldLabel
            app.Spacing1EditFieldLabel = uilabel(app.UIFigure);
            app.Spacing1EditFieldLabel.HorizontalAlignment = 'right';
            app.Spacing1EditFieldLabel.Position = [65 504 66 22];
            app.Spacing1EditFieldLabel.Text = 'Spacing (1)';

            % Create Spacing1EditField
            app.Spacing1EditField = uieditfield(app.UIFigure, 'numeric');
            app.Spacing1EditField.ValueChangedFcn = createCallbackFcn(app, @Spacing1EditFieldValueChanged, true);
            app.Spacing1EditField.Position = [146 504 100 22];

            % Create DistancebetweenTxRxLabel
            app.DistancebetweenTxRxLabel = uilabel(app.UIFigure);
            app.DistancebetweenTxRxLabel.HorizontalAlignment = 'center';
            app.DistancebetweenTxRxLabel.FontWeight = 'bold';
            app.DistancebetweenTxRxLabel.Position = [103 472 154 22];
            app.DistancebetweenTxRxLabel.Text = 'Distance between Tx & Rx';

            % Create Distance180EditFieldLabel
            app.Distance180EditFieldLabel = uilabel(app.UIFigure);
            app.Distance180EditFieldLabel.HorizontalAlignment = 'right';
            app.Distance180EditFieldLabel.Position = [48 442 83 22];
            app.Distance180EditFieldLabel.Text = 'Distance (180)';

            % Create Distance180EditField
            app.Distance180EditField = uieditfield(app.UIFigure, 'numeric');
            app.Distance180EditField.ValueChangedFcn = createCallbackFcn(app, @Distance180EditFieldValueChanged, true);
            app.Distance180EditField.Position = [146 442 100 22];

            % Create Offset10EditFieldLabel
            app.Offset10EditFieldLabel = uilabel(app.UIFigure);
            app.Offset10EditFieldLabel.HorizontalAlignment = 'right';
            app.Offset10EditFieldLabel.Position = [71 412 61 22];
            app.Offset10EditFieldLabel.Text = 'Offset (10)';

            % Create Offset10EditField
            app.Offset10EditField = uieditfield(app.UIFigure, 'numeric');
            app.Offset10EditField.ValueChangedFcn = createCallbackFcn(app, @Offset10EditFieldValueChanged, true);
            app.Offset10EditField.Position = [147 412 100 22];

            % Create SelectMediaButtonGroup
            app.SelectMediaButtonGroup = uibuttongroup(app.UIFigure);
            app.SelectMediaButtonGroup.SelectionChangedFcn = createCallbackFcn(app, @SelectMediaButtonGroupSelectionChanged, true);
            app.SelectMediaButtonGroup.TitlePosition = 'centertop';
            app.SelectMediaButtonGroup.Title = 'Select Media';
            app.SelectMediaButtonGroup.FontWeight = 'bold';
            app.SelectMediaButtonGroup.Position = [124 270 123 133];

            % Create FreeSpaceButton
            app.FreeSpaceButton = uiradiobutton(app.SelectMediaButtonGroup);
            app.FreeSpaceButton.Text = 'Free Space';
            app.FreeSpaceButton.Position = [11 87 84 22];
            app.FreeSpaceButton.Value = true;

            % Create LineofSightButton
            app.LineofSightButton = uiradiobutton(app.SelectMediaButtonGroup);
            app.LineofSightButton.Text = 'Line of Sight';
            app.LineofSightButton.Position = [11 65 89 22];

            % Create NoLineofSightButton
            app.NoLineofSightButton = uiradiobutton(app.SelectMediaButtonGroup);
            app.NoLineofSightButton.Text = 'No Line of Sight';
            app.NoLineofSightButton.Position = [11 43 107 22];

            % Create WaveguideButton
            app.WaveguideButton = uiradiobutton(app.SelectMediaButtonGroup);
            app.WaveguideButton.Text = 'Waveguide';
            app.WaveguideButton.Position = [11 21 82 22];

            % Create UserDefinedButton
            app.UserDefinedButton = uiradiobutton(app.SelectMediaButtonGroup);
            app.UserDefinedButton.Text = 'User Defined';
            app.UserDefinedButton.Position = [11 -2 92 22];

            % Create TypeofSignalButtonGroup
            app.TypeofSignalButtonGroup = uibuttongroup(app.UIFigure);
            app.TypeofSignalButtonGroup.SelectionChangedFcn = createCallbackFcn(app, @TypeofSignalButtonGroupSelectionChanged, true);
            app.TypeofSignalButtonGroup.TitlePosition = 'centertop';
            app.TypeofSignalButtonGroup.Title = 'Type of Signal';
            app.TypeofSignalButtonGroup.FontWeight = 'bold';
            app.TypeofSignalButtonGroup.Position = [1179 635 190 77];

            % Create SinewaveButton
            app.SinewaveButton = uiradiobutton(app.TypeofSignalButtonGroup);
            app.SinewaveButton.Text = 'Sinewave';
            app.SinewaveButton.Position = [11 31 74 22];
            app.SinewaveButton.Value = true;

            % Create GaussianPulseButton
            app.GaussianPulseButton = uiradiobutton(app.TypeofSignalButtonGroup);
            app.GaussianPulseButton.Text = 'Gaussian Pulse';
            app.GaussianPulseButton.Position = [11 9 106 22];

            % Create SendSignalButton
            app.SendSignalButton = uibutton(app.UIFigure, 'push');
            app.SendSignalButton.ButtonPushedFcn = createCallbackFcn(app, @SendSignalButtonPushed, true);
            app.SendSignalButton.FontSize = 18;
            app.SendSignalButton.FontWeight = 'bold';
            app.SendSignalButton.Position = [1179 538 190 64];
            app.SendSignalButton.Text = 'Send Signal';

            % Create TimeReverseButton
            app.TimeReverseButton = uibutton(app.UIFigure, 'push');
            app.TimeReverseButton.ButtonPushedFcn = createCallbackFcn(app, @TimeReverseButtonPushed, true);
            app.TimeReverseButton.FontSize = 18;
            app.TimeReverseButton.FontWeight = 'bold';
            app.TimeReverseButton.Position = [1179 422 190 72];
            app.TimeReverseButton.Text = 'Time Reverse';

            % Create TransmitButton
            app.TransmitButton = uibutton(app.UIFigure, 'push');
            app.TransmitButton.ButtonPushedFcn = createCallbackFcn(app, @TransmitButtonPushed, true);
            app.TransmitButton.FontSize = 18;
            app.TransmitButton.FontWeight = 'bold';
            app.TransmitButton.Position = [1179 303 190 76];
            app.TransmitButton.Text = 'Transmit';

            % Create ArraySetupButton
            app.ArraySetupButton = uibutton(app.UIFigure, 'push');
            app.ArraySetupButton.ButtonPushedFcn = createCallbackFcn(app, @ArraySetupButtonPushed, true);
            app.ArraySetupButton.FontWeight = 'bold';
            app.ArraySetupButton.Position = [263 248 135 23];
            app.ArraySetupButton.Text = 'Array Setup';

            % Show the figure after all components are created
            app.UIFigure.Visible = 'on';
        end
    end

    % App creation and deletion
    methods (Access = public)

        % Construct app
        function app = Time_Reversal_App_Stage3

            % Create UIFigure and components
            createComponents(app)

            % Register the app with App Designer
            registerApp(app, app.UIFigure)

            if nargout == 0
                clear app
            end
        end

        % Code that executes before app deletion
        function delete(app)

            % Delete UIFigure when app is deleted
            delete(app.UIFigure)
        end
    end
end     

[VBBV]

You seem to insert close command in case 5. any specific reason ?

[Andy]

Hi VBBV,

The close was there to shut the figure after the user has placed their own refelectors - its a good point I had forgotten that I had originally put that in.

I will remove it and see if it has any affect.

Many thanks,

Andy

[Andy]

Hi VBBV,

No it doesn't seem to have any affect :(

Best regards,

Andy

Answer 1

[Voss]

Problem 1: app.media is never set to 5 because in SelectMediaButtonGroupSelectionChanged, you have:

elseif app.UserDefinedButton == 1

but that should be:

elseif app.UserDefinedButton.Value == 1

Problem 2: Instead of

hold on

you should do

hold(app.UIAxes2,'on')

That is, you should explicitly specify which axes to hold on (same for grid, axis, and anything else where the axes is not explicitly mentioned). Without specifying the axes, hold (and grid, etc.) applies to the current axes, but the current axes may not be app.UIAxes2, particularly if you have multiple axes in your app and other figure(s) open at the same time, etc., etc..

[Andy]

Thank you so much Voss, I could have been lucking for those bugs all weekend!

Also I didn't realise about the hold(app.UIAxes2,'on')

Once again, many thanks for your help.

Best regards,

Andy

[Voss]

You're welcome!