How can I add multiple y axes to a plot?

Question

Vincent I 2012-6-27

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/42190-how-can-i-add-multiple-y-axes-to-a-plot

评论： Khanh 2014-12-27

Hi,

I'm trying to plot the y axes on the right side of the graph but for some reason i'm unable to do so.

You are probably wondering why I'm not using different code to do this. Well' I'm trying to adapt the "addaxis" code by Harry Lee where I can add multiple real time plots with axes at the same time. The real time plots are working great, now I'm trying to figure out how to add axis with each plot.

    cah=findall(handles.Axes1,'type','axes');
    yl = get(cah,'ylim');
    cpos = get(cah,'position');
     set(cah,'box','off');
    %  get userdata of current axis.  this will hold handles to
    %  additional axes and the handles to their corresponding plots
    %  in the main axis
    axh = get(cah,'userdata');
    ledge = cpos(1);
    if length(axh)>=1
      if length(axh)/2 == round(length(axh)/2)
        rpos = get(axh{end-1}(1),'position');
        redge = rpos(1);
        lpos = get(axh{end}(1),'position');
        ledge = lpos(1);
      else
        rpos = get(axh{end}(1),'position');
        redge = rpos(1);
        if length(axh)>1
    lpos = get(axh{end-1}(1),'position');
    ledge = lpos(1);
        end    
      end   
    else
      redge = cpos(3)+cpos(1);
      ledge = cpos(1);
    end
    totwid = redge-ledge;
%  assume axes are added on right, then left, then right, etc.
  numax = length(axh)+1;
    %  parameters setting axis separation
    axcompleft=0.12;
    if numax == 1
      axcompright = 0.0;
    else 
      axcompright = 0.12;
    end
    if numax/2 == round(numax/2)
      side = 'left';
      xpos = ledge-axcompleft*totwid;
    else
      side = 'right';
      xpos = redge+axcompright*totwid;
    end
%  plot in new axis to get the automatically generated ylimits
h_ax = axes('position',[xpos, cpos(2), cpos(3)*.015, cpos(4)]); 
hplt = plot(handles.Axes1,x,y); 
    if ~exist('yl2')
      yl2 = get(h_ax,'ylim');
    end
    set(h_ax,'yaxislocation',side);
    set(h_ax,'color',get(gcf,'color'));
    set(h_ax,'box','off');
    set(h_ax,'xtick',[]);
    set(hplt,'visible','off');
    set(h_ax,'ylim',yl2);