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diff --git a/Master/texmf-dist/metapost/metauml/metauml_package_relations.mp b/Master/texmf-dist/metapost/metauml/metauml_package_relations.mp
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+% MetaUML, a MetaPost library for typesetting exquisite UML diagrams.
+% Copyright (C) 2006 Radu-George Radulescu
+%
+% This program is free software; you can redistribute it and/or
+% modify it under the terms of the GNU General Public License
+% as published by the Free Software Foundation; either version 2
+% of the License, or (at your option) any later version.
+%
+% This program is distributed in the hope that it will be useful,
+% but WITHOUT ANY WARRANTY; without even the implied warranty of
+% MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+% GNU General Public License for more details.
+%
+% You should have received a copy of the GNU General Public License
+% along with this program; if not, write to the Free Software
+% Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+
+if known _metauml_package_relations_mp:
+ expandafter endinput
+fi;
+_metauml_package_relations_mp:=1;
+
+defaultRelationHeadWidth := 25;
+defaultRelationHeadHeight := 10;
+
+vardef NestInfo@# =
+ LinkInfo@#;
+
+ @#widthA = 0;
+ @#heightA = 0;
+ @#drawMethodA = "drawNothing";
+
+ @#widthB = defaultRelationHeadWidth;
+ @#heightB = defaultRelationHeadHeight;
+ @#drawMethodB = "drawCrossedCircle";
+
+ @#drawMethod = "drawLine";
+enddef;
+
+NestInfo.nest;
+
+vardef drawRelation(text iLink)(expr myPath)=
+ link(iLink)(myPath);
+enddef;
+
+vardef drawLine(expr my_path) =
+ draw my_path;
+enddef;
+
+vardef drawNothing(text pA)(text pB)(text base) =
+enddef;