%This package contains some code to determine the tools to be used to draw
%some geometrical figure.
%
%It accept one option whose value is:
% tikz to draw with the TikZ package (this is the default value)
% inclusion to include an external file.
%Declare few constants to choose what will be used to typeset the figure
\chardef\TIKZ=0
\chardef\INCLUSION=1 %When an external image is simply included
