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diff --git a/src/graph/view3D/pot3d.c.pamphlet b/src/graph/view3D/pot3d.c.pamphlet
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+\documentclass{article}
+\usepackage{axiom}
+\begin{document}
+\title{\$SPAD/src/graph/view3D pot3d.c}
+\author{The Axiom Team}
+\maketitle
+\begin{abstract}
+\end{abstract}
+\eject
+\tableofcontents
+\eject
+\section{License}
+<<license>>=
+/*
+Copyright (c) 1991-2002, The Numerical ALgorithms Group Ltd.
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are
+met:
+
+    - Redistributions of source code must retain the above copyright
+      notice, this list of conditions and the following disclaimer.
+
+    - Redistributions in binary form must reproduce the above copyright
+      notice, this list of conditions and the following disclaimer in
+      the documentation and/or other materials provided with the
+      distribution.
+
+    - Neither the name of The Numerical ALgorithms Group Ltd. nor the
+      names of its contributors may be used to endorse or promote products
+      derived from this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
+IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
+OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+@
+<<*>>=
+<<license>>
+
+#define _POT3D_C
+#include "axiom-c-macros.h"
+#include "useproto.h"
+
+#include "header.h"
+#include "all_3d.H1"
+
+/****************************/
+/***  void getPotValue()  ***/
+/****************************/
+
+mouseCoord 
+#ifdef _NO_PROTO
+getPotValue(eX,eY,xH,yH)
+     short eX,eY,xH,yH;
+#else
+getPotValue(short eX,short eY,short xH,short yH)
+#endif
+{
+
+  mouseCoord whereMouse;
+  float x,y;
+
+  x = (float)eX/xH - 1;
+  y = -((float)eY/yH -1);
+
+  /* make non-linear potentiometer */
+  whereMouse.x = x*x*x; 
+  whereMouse.y = y*y*y; 
+  if (whereMouse.x > 1.0)  whereMouse.x = 1.0;
+  if (whereMouse.y > 1.0)  whereMouse.y = 1.0;
+  if (whereMouse.x < -1.0) whereMouse.x = -1.0;
+  if (whereMouse.y < -1.0) whereMouse.y = -1.0;
+
+  return(whereMouse);
+
+} /* getPotValue() */
+
+
+
+/**********************************/
+/***  void getLinearPotValue()  ***/
+/**********************************/
+
+mouseCoord 
+#ifdef _NO_PROTO
+getLinearPotValue(eX,eY,xH,yH)
+     short eX,eY,xH,yH;
+#else
+getLinearPotValue(short eX,short eY,short xH,short yH)
+#endif
+{
+
+  mouseCoord whereMouse;
+
+  whereMouse.x = (float)eX/xH - 1;
+  whereMouse.y = -((float)eY/yH -1);
+
+  return(whereMouse);
+
+} /* getLinearPotValue() */
+
+
+@
+\eject
+\begin{thebibliography}{99}
+\bibitem{1} nothing
+\end{thebibliography}
+\end{document}