App Designer - Trying to modify a plotted axes line on a (figure with UIControls) called from the app.

I'm trying to build an interactive figure that when the check box is checked or uncheck it displays the intended line or deletes the line. Delete can mean hide too. I can get the figure to display just fine but when I check/uncheck the checkbox I get

"Not enough input arguments"

for

line(axi,'XData',Time,'YData',Data1,'LineStyle','none');

Here's the whole thing

 function buildUIFigure(~) % Need the ~ instead of app.
    f = figure('Name','Data Selection','Position',[0 0 1100 900]);

      % CheckBox1 Label
      uicontrol(...
          'Parent',f...
          'Style','text',...
          'Position',[55 650 120 20]...
          'HorizontalAlignment','left',...
          'String','First Check Box',...
          'FontSize',14,...
          'FontWeight','bold'); 

      % CheckBox1 UIControl      
      CheckBox1 = uicontrol(...
          'Parent',f,...
          'Style','checkbox',...
          'Position',[180 652 15 15],...
          'CallBack',@VisualizeData,...
          'Value',1);  

      ax = axes(...
          'Parent',f,...
          'Position',[0.25 0.1 0.7 0.85],...
          'box','on');
      line(Time,Data1,'Color','k');
      drawnow   
      uiwait(f) % Wait for the user to close figure before moving on.  

      function VisualizeData (CheckBox1,Time,Data1)            
          axi = gca;
          DispCheckBox1 = get(CheckBox1,'Value');
              if DispCheckBox1 == 1
                  line(axi,'XData',Time,'YData',Data1,'Color','k');
              elseif DispCheckBox1 == 0
                  % Trying to make it "disappear". Can't figure out how to delete the line altogether.
                  line(axi,'XData',Time,'YData',Data1,'LineStyle','none');
              end
          drawnow
      end
  end

I'm still reletively new to MATLAB and I might have picked a fairly ambitious app to make for my first! Lol. *cries

Answer 1

[Kris Hoffman]

Well, in typical fashion, I semi-answered my own question...

function VisualizeData (CheckBox1,ax)

DispCheckBox1 = get(CheckBox1,'Value');

if DispCheckBox1 == 1
    test = get(gca,'Children');
    set(test(1),'Visible','on');
else
    test = get(gca,'Children');
    set(test(1),'Visible','off');
end
drawnow
end

This should work as long as the indexing cooperates.

Answer 2

[fouad jabbour]

I have a transfert function and I want to view if the system is stable by cheking its roots if their lenght is less than 1 but is does not go well and I don't understand where is the errorError in Untitled2ex42zabatawwalnoss (line 20)

x =

uicontrol('Parent',f1,'Style','text','Position',[81,1000,419,10],'value','systheme

instable'); %the vector after position specified the dimensions and location of the

slider

the hole code is

clear

close all

f1=figure; %f identifies the figure and will be used later

hold on

axis equal

axis([-10 10 -10 10])

%limits of x and y visible on the figure. Observe the figure and

g = uicontrol('Parent',f1,'Style','slider','Position',[81,50,1000,10],'value',0, 'min',-90,'max',90); %the vector after position specified the dimensions and location of the slider

m = uicontrol('Parent',f1,'Style','slider','Position',[81,23,1000,10],'value',0, 'min',-90,'max',90); %the vector after position specified the dimensions and location of the slider

l = uicontrol('Parent',f1,'Style','slider','Position',[81,10,1000,10],'value',0, 'min',-90,'max',90); %the vector after position specified the dimensions and location of the slider

q = uicontrol('Parent',f1,'Style','slider','Position',[81,0,1000,10],'value',0, 'min',-90,'max',90); %the vector after position specified the dimensions and location of the slider

x = uicontrol('Parent',f1,'Style','text','Position',[81,1000,419,10],'value','systheme instable'); %the vector after position specified the dimensions and location of the slider

while(1) %infinite loop

k=get(g,'value'); %reading the current value of the slider

uicontrol('Parent',f1,'Style','text','Position',[50,50,23,10],'String',num2str(k));

%displaying the value in the figure

a=get(m,'value'); %reading the current value of the slider

uicontrol('Parent',f1,'Style','text','Position',[50,23,23,10],'String',num2str(a));

b=get(l,'value'); %reading the current value of the slider

uicontrol('Parent',f1,'Style','text','Position',[50,10,23,10],'String',num2str(b));

c=get(q,'value'); %reading the current value of the slider

uicontrol('Parent',f1,'Style','text','Position',[50,0,23,10],'String',num2str(c));

p=get(g,'value'); %reading the current value of the slider

%displaying the value in the figure

s=zeros(1,12);

for j=3:10

s(j)=k*a^(-1)-b*a^(-1)*s(j-1)-c*a^(-1)*s(j-2);

end

h=plot([j,s]);

y=[a , b, c];

z=roots(y);

%ici on calcule la racine carree de la fonction de transfert

n= y/y(1) ;

%on rend le coefficient de x du plusgrand exposant egal a 1

c1= abs(n) ;

%o calcul le module de chaque racine

o= any(c1(:) >1);

%ici on compare le module de tout les t=racines ,si une %d’eux est superieure a 1 le systheme est %instable

if o>=1

uicontrol('Parent',f1,'Style','text','Position',[50,500,23,10]);

%displaying the value in the figure

end

pause(0.1) %waiting 0.1 seconds

delete(h);

delete(p);

end