matlab绘图设置横坐标数值的角度

• matlab自带的包中无法改变横坐标的角度，但往往横坐标的数值过长，容易造成重合，因此需要将横坐标的数值角度进行旋转：

  • 横坐标旋转角度函数
  • 调用方法
  • 结果展示

  ---

  横坐标旋转角度函数

• function th=rotateticklabel(h,rot,demo)

  %ROTATETICKLABEL rotates tick labels

  %   TH=ROTATETICKLABEL(H,ROT) ris the calling form where H is a handle to

  %   the axis that contains the XTickLabels that are to be rotated. ROT is

  %   an optional parameter that specifies the angle of rotation. The default

  %   angle is 90. TH is a handle to the text objects created. For long

  %   strings such as those produced by datetick, you may have to adjust the

  %   position of the axes so the labels don't get cut off.

  %

  %   Of course, GCA can be substituted for H if desired.

  %

  %   TH=ROTATETICKLABEL([],[],'demo') shows a demo figure.

  %

  %   Known deficiencies: if tick labels are raised to a power, the power

  %   will be lost after rotation.

  %

  %   See also datetick.

  
  

  %   Written Oct 14, 2005 by Andy Bliss

  %   Copyright 2005 by Andy Bliss

  
  

  
  

  if nargin==3

      x=[now-.7 now-.3 now];

      y=[20 35 15];

      figure

      plot(x,y,'.-')

      datetick('x',0,'keepticks')

      h=gca;

      set(h,'position',[0.13 0.35 0.775 0.55])

      rot=90;

  end

  
  

  %set the default rotation if user doesn't specify

  if nargin==1

      rot=90;

  end

  %make sure the rotation is in the range 0:360 (brute force method)

  % while rot>360

  %     rot=rot-360;

  % end

  % while rot<0

  %     rot=rot+360;

  % end

  %get current tick labels

  a=get(h,'XTickLabel');

  %erase current tick labels from figure

  set(h,'XTickLabel',[]);

  %get tick label positions

  b=get(h,'XTick');

  c=get(h,'YTick');

  %make new tick labels

  if rot<180

      th=text(b,repmat(c(1)-.1*(c(2)-c(1)),length(b),1),a,'HorizontalAlignment','right','fontsize',14,'fontweight','bold','rotation',rot);

  else

      th=text(b,repmat(c(1)-.1*(c(2)-c(1)),length(b),1),a,'HorizontalAlignment','left','fontsize',14,'rotation',rot);

  end

• 调用方法

  在图绘制结束之后直接利用函数

• th = rotationticklabel(gca,30) 0代表旋转30度

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