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35 lines
1.2 KiB
35 lines
1.2 KiB
% Copyright 2006 by Mark Wibrow
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%
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% This file may be distributed and/or modified
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%
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% 1. under the LaTeX Project Public License and/or
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% 2. under the GNU Public License.
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%
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% See the file doc/generic/pgf/licenses/LICENSE for more details.
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\usepgflibrary{shapes.callouts}%
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\pgfkeys{/tikz/callout absolute pointer/.code={%
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\tikz@scan@one@point\tikz@lib@callout@checkforplus#1\relax%
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}%
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}%
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\def\tikz@lib@callout@checkforplus#1{%
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\pgfutil@ifnextchar+{\def\tikz@lib@callout@originalpoint{#1}\tikz@lib@callout@scan@relative}%
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{\pgf@lib@callout@makeabsolutepointer{#1}}}%
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\def\tikz@lib@callout@scan@relative+{%
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\pgfutil@ifnextchar+{\tikz@lib@callout@scan@plusplus}{\tikz@lib@callout@scan@plus}}%
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\def\tikz@lib@callout@scan@plusplus+{\tikz@scan@one@point\tikz@lib@callout@add}%
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\def\tikz@lib@callout@scan@plus{\tikz@scan@one@point\tikz@lib@callout@add}%
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\def\tikz@lib@callout@add#1{%
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\expandafter\pgf@lib@callout@makeabsolutepointer\expandafter{%
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\expandafter\pgfpointadd\expandafter{\tikz@lib@callout@originalpoint}{#1}}%
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}%
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\pgfkeys{/tikz/callout relative pointer/.code={%
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\tikz@scan@one@point\pgf@lib@callout@makerelativepointer#1\relax%
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}%
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}%
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\endinput
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