plotoctaveoctave-gui

Why does Plot hide another Plot in Octave?

I'm working with GUI in Octave to plot three Y Axis and one X Axis. My Problem is that one Plot hides another plot. Acutually it should have to show every graph. But it shows only the last one of my codes. I used hold on and hold off codes to show multiple y graphs. But it doesn't work like this picture.

My code for plotting looks like this.

h1 = axes ('position', [0.45 0.25 0.5 0.5], 'tag', 'plotarea','ycolor','r'); 
      plot( h1, XData, YData, 'tag', 'plotobject','color','r');
      hold on
h2 = axes ('position', [0.45 0.25 0.5 0.5], 'tag', 'plotarea_1','ycolor','b'); 
      plot( h2, XData, Y_1Data, 'tag', 'plotobject_1','color','b') 
      hold on
h3 = axes ('position', [0.45 0.25 0.5 0.5], 'tag', 'plotarea_2','ycolor','k');
      plot( h3, XData, Y_2Data, 'tag', 'plotobject_2','k');
      hold off
      grid on
  endfunction

Any help appreciated, or tips on where to look.

Solution

  • For the axes after the first one, set the color property to none and nextplot property to add:

    h1 = axes ('position', [0.45 0.25 0.5 0.5], 'tag', 'plotarea','ycolor','r'); 
    plot( h1, XData, YData, 'tag', 'plotobject','color','r');

% either after creating the axes:
h2 = axes ('position', [0.45 0.25 0.5 0.5], 'tag', 'plotarea_1','ycolor','b', 'color', 'none');
    set(gca, 'nextplot', 'add')
    plot( h2, XData, Y_1Data, 'tag', 'plotobject_1','color','b')

% or while creating the axes:
h3 = axes ('position', [0.45 0.25 0.5 0.5], 'tag', 'plotarea_2','ycolor','k', ...
   'color', 'none', 'nextplot', 'add');
    plot( h3, XData, Y_2Data, 'tag', 'plotobject_2','k');
    grid on