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+/* tube, Copyright (c) 2001, 2003, 2007 Jamie Zawinski <jwz@jwz.org>
+ * Utility functions to create tubes and cones in GL.
+ *
+ * Permission to use, copy, modify, distribute, and sell this software and its
+ * documentation for any purpose is hereby granted without fee, provided that
+ * the above copyright notice appear in all copies and that both that
+ * copyright notice and this permission notice appear in supporting
+ * documentation. No representations are made about the suitability of this
+ * software for any purpose. It is provided "as is" without express or
+ * implied warranty.
+ */
+
+#ifndef __TUBE_H__
+#define __TUBE_H__
+
+/* Renders a tube along the line described by the two points.
+ Returns the number of polygons used.
+ */
+extern int tube (GLfloat x1, GLfloat y1, GLfloat z1,
+ GLfloat x2, GLfloat y2, GLfloat z2,
+ GLfloat diameter, GLfloat cap_size,
+ int faces, int smooth, int caps_p, int wire_p);
+
+/* Renders a cone along the line described by the two points.
+ Returns the number of polygons used.
+ */
+extern int cone (GLfloat x1, GLfloat y1, GLfloat z1,
+ GLfloat x2, GLfloat y2, GLfloat z2,
+ GLfloat diameter, GLfloat cap_size,
+ int faces, int smooth, int cap_p, int wire_p);
+
+#endif /* __TUBE_H__ */