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+\input preamble.tex
+
+% ---------------------------------------------------------------------------
+\begin{document}
+\begin{center}
+{\Huge \bf{I. Rational Quadratic Bezier Curves}}
+\bigskip
+
+\begin{lapdf}(16,20)(-8,-10)
+ \Dgray
+ \Dash(1)
+ \Polygon(-8,0)(0,10)(8,0) \Stroke
+ \Dash(0)
+ \Red
+ \Rcurve(64)(-8,0,7)(0,10,1)(8,0,7) \Stroke
+ \Green
+ \Rcurve(64)(-8,0,6)(0,10,1)(8,0,6) \Stroke
+ \Blue
+ \Rcurve(64)(-8,0,5)(0,10,1)(8,0,5) \Stroke
+ \Cyan
+ \Rcurve(64)(-8,0,4)(0,10,1)(8,0,4) \Stroke
+ \Magenta
+ \Rcurve(64)(-8,0,3)(0,10,1)(8,0,3) \Stroke
+ \Yellow
+ \Rcurve(64)(-8,0,2)(0,10,1)(8,0,2) \Stroke
+ \Black
+ \Rcurve(64)(-8,0,1)(0,10,1)(8,0,1) \Stroke
+ \Red
+ \Rcurve(64)(-8,0,1)(0,10,2)(8,0,1) \Stroke
+ \Green
+ \Rcurve(64)(-8,0,1)(0,10,3)(8,0,1) \Stroke
+ \Blue
+ \Rcurve(64)(-8,0,1)(0,10,4)(8,0,1) \Stroke
+ \Cyan
+ \Rcurve(64)(-8,0,1)(0,10,5)(8,0,1) \Stroke
+ \Magenta
+ \Rcurve(64)(-8,0,1)(0,10,6)(8,0,1) \Stroke
+ \Yellow
+ \Rcurve(64)(-8,0,1)(0,10,7)(8,0,1) \Stroke
+ \Black
+ \Rcurve(64)(-8,0,1)(0,10,0)(8,0,1) \Stroke
+ \Red
+ \Rcurve(64)(-8,0,7)(0,10,-1)(8,0,7) \Stroke
+ \Green
+ \Rcurve(64)(-8,0,6)(0,10,-1)(8,0,6) \Stroke
+ \Blue
+ \Rcurve(64)(-8,0,5)(0,10,-1)(8,0,5) \Stroke
+ \Cyan
+ \Rcurve(64)(-8,0,4)(0,10,-1)(8,0,4) \Stroke
+ \Magenta
+ \Rcurve(64)(-8,0,3)(0,10,-1)(8,0,3) \Stroke
+ \Yellow
+ \Rcurve(64)(-8,0,2)(0,10,-1)(8,0,2) \Stroke
+ \Point(1)(-8,0)
+ \Point(1)(+0,10)
+ \Point(1)(+8,0)
+ \Text(-8.0,0.2,rb){$P_0$}
+ \Text(+0.2,+10.3,rb){$P_1$}
+ \Text(+8.0,0.2,lb){$P_2$}
+\end{lapdf}
+\end{center}
+All curves share the same Bezier points, but they differ in the weights of
+the points. The black curve is a parabola {$w = 1$}. Above of this all
+curves are hyperbolas with increasing weigts, below of this are elliptic curves
+with decreasing weights. The line has a weight of {$w = 0$}. After this
+the weights are negative increasing. The curves are the complementare
+elliptical arcs to the positive counterparts.
+
+\newpage
+\unitlength1.16cm
+
+\begin{center}
+{\Huge \bf{II. Conic Curves}}
+\bigskip
+
+\begin{lapdf}(16,16)(0,0)
+ \Dgray
+ \Rcurve(64)(4,10.333,2)(0,3.4,1)(8,3.4,2)
+ \Rcurve(80)(4,10.333,2)(0,3.4,-1)(8,3.4,2) \Stroke
+ \Red
+ \Rcurve(64)(4,9.7,2)(0,4.7,1)(8,4.7,2)
+ \Rcurve(80)(4,9.7,2)(0,4.7,-1)(8,4.7,2) \Stroke
+ \Green
+ \Rcurve(64)(9.7,4,2)(4.7,0,1)(4.7,8,2)
+ \Rcurve(80)(9.7,4,2)(4.7,0,-1)(4.7,8,2) \Stroke
+ \Blue
+ \Rcurve(64)(16,16,1)(8,8,5)(16,0,1) \Stroke
+ \Cyan
+ \Rcurve(64)(0,16,1)(8,8,5)(0,0,1) \Stroke
+ \Magenta
+ \Rcurve(64)(0,16,1)(8,0,1)(16,16,1) \Stroke
+ \Yellow
+ \Rcurve(64)(0,0,1)(8,16,1)(16,0,1) \Stroke
+\end{lapdf}
+
+\large Circle, Ellipse, Parabola, Hyperbola
+\end{center}
+\end{document}