When using clabel to label contour lines, is there a way to manually adjust the gap in the contour line for the label?

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Nathan 2012-12-3

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评论： Platon Patlakas 2017-9-23

The gaps in the contour lines over lap labeling after adjusting the format of the label to xe^x, font size to 16 and line width to 2.5. Is there a way to "update" the gap size after these adjustments have been made?

      h=figure(Number);
      clf, grid on, hold on,
  %     disp('TP1'),
      [C,H] = contour(X,Y,Z,V,'-k','Clipping','off','LineWidth',2.5);
      set(gca,'FontSize',16),
  %     disp('TP2'),
      text_handles=clabel(C,H,v,'LabelSpacing',500,'FontSize',16);
      [j ~]=size(text_handles);
  %     disp('TP3'),
      for i=1:j,
  %         i,disp('TP4'),
          a=get(text_handles(i),'UserData');
          y=char(num2str(a,'%5.0e'));
          set(text_handles(i),'String', y);% ,'Interpreter','LaTex');
      end

I submitted a bug report on this and they forwarded to the enhancement team and confirmed that they were not able to find a work around for the issue.

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Matt Fig 2012-12-6

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Can you give some data that shows the problem? Like:

[X,Y,Z] = peaks(300);
contour(Z)

Or manipulate the peaks data so that we all can see what you see.

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Answer 1

Nathan 2014-4-11

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To my knowledge there isn't a straight forward way built into matlab to do this.

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Answer 2

David 2014-4-27

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So how did you work around this problem, Nathan? I have the same problem. I want to make my labeling size 18, but then the lines and the numbers are overlapping. See the attached contour plot below. I have tried to both to specify the label fontsize in the clabel command:

clabel(o1,o2,'fontsize',18,'color',[1 1 1])

and by creating an object:

hh = clabel (o1, o2)

set (hh, 'fontsize', 18,'color',[1 1 1])

but I get the same contour plot in either case.

Does anyone know how to avoid the lines overlapping the labels when the label text size is big? Any help is appreciated.