How do I use the function "uicontrol" ?

Hello. I described the following code.

   function viewer 
      load view_data.mat;

      fig1 = figure(1);
      clf;
      hax1 = axes('Units','pixels');
      plot3(x_layer1(jjj,:),y_layer1(jjj,:),z_layer1(jjj,:),'.k');
      grid on;
      hold on;
   end

I want to change the "jjj" by using slider in "uicontrol". How do I describe the function of uicontrol?

Answer 1

[Giorgos Papakonstantinou]

The minimum example I can give you is:

sld = uicontrol('Style', 'slider',...
        'Min',1,'Max',50,'Value',41,...
        'Position', [5 5 120 20],...
        'Callback', @(obj, evt) viewer(obj, evt));

Of course you have to change you function viewer.

function viewer(obj, evt)
   .....

Additionally, I would suggest to load view_data.mat outside the Callback function and provide (an) additional argument(s) to the CallBack with your x_layer1, y_layer1 , z_layer1 variables.

Finally, remove the clf command from function viewer because it will clear you current figure window and eventually erase the slider.

[Keisuke Kazama]

Thank you for your kind explanation. I realized the objective.