function th=rotateticklabel(h,rot)
%ROTATETICKLABEL rotates tick labels
% TH=ROTATETICKLABEL(H,ROT) is 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
% modified by MEC
%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,'Ylim');
%make new tick labels
if rot<180
th=text(b,repmat(c(1)-.02*(c(2)-c(1)),length(b),1),a,'HorizontalAlignment','right','rotation',rot, 'Interpreter', 'none');
else
th=text(b,repmat(c(1)-.02*(c(2)-c(1)),length(b),1),a,'HorizontalAlignment','left','rotation',rot, 'Interpreter', 'none');
end