ADDED   mttroot/mtt/lib/comp/compound/Mechanical/Mechanical-2D/ROT2/ROT2_desc.tex
Index: mttroot/mtt/lib/comp/compound/Mechanical/Mechanical-2D/ROT2/ROT2_desc.tex
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--- /dev/null
+++ mttroot/mtt/lib/comp/compound/Mechanical/Mechanical-2D/ROT2/ROT2_desc.tex
@@ -0,0 +1,20 @@
+% Verbal description for system ROT2 (ROT2_desc.tex)
+% Generated by MTT on Fri Aug 15 21:09:17 BST 1997.
+
+% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+% %% Version control history
+% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+% %% $Id$
+% %% $Log$
+% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+   The acausal bond graph of system \textbf{ROT2} is
+   displayed in Figure \Ref{ROT2_abg} and its label
+   file is listed in Section \Ref{sec:ROT2_lbl}.
+   The subsystems are listed in Section \Ref{sec:ROT2_sub}.
+
+\textbf{ROT2} implements a 2D rotational {\em transformation\/} in
+terms of a set of {\em transformers}. A flow expressed in the $XY$
+coordinates of Figure \Ref{ROT2_abg} is transformed by \textbf{ROT2}
+into the coordinates of $xy$. The corresponding (energy conserving)
+effort transformation is implied by \textbf{ROT2}.

ADDED   mttroot/mtt/lib/comp/compound/Mechanical/Mechanical-2D/ROT2/ROT2_lbl.txt
Index: mttroot/mtt/lib/comp/compound/Mechanical/Mechanical-2D/ROT2/ROT2_lbl.txt
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+++ mttroot/mtt/lib/comp/compound/Mechanical/Mechanical-2D/ROT2/ROT2_lbl.txt
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+%SUMMARY ROT2: 2D rotational transformer
+%DESCRIPTION {ROT2} implements a 2D rotational transformation in terms
+%DESCRIPTION of a set of transformers. A flow expressed in the X-Y
+%DESCRIPTION coordinates is transformed by ROT2 into the coordinates
+%DESCRIPTION of x-y. The corresponding (energy conserving) effort
+%DESCRIPTION transformation is implied.
+%DESCRIPTION Ports X and Y correspond to the old coordinate system
+%DESCRIPTION Ports x and y correspond to the new coordinate system
+%DESCRIPTION Port theta is the angle of XY with respect to xy.
+
+%% Label file for system ROT2 (ROT2_lbl.txt)
+
+% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+% %% Version control history
+% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+% %% $Id$
+% %% $Log$
+% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+%% Each line should be of one of the following forms:
+%	a comment (ie starting with %)
+%	Component-name	CR_name	arg1,arg2,..argn
+%	blank
+
+
+
+% Component type EMTF
+	xX		lcos	flow,1
+	xY		lsin	flow,1
+	yX		lsin	flow,-1
+	yY		lcos	flow,1