Initial population.

1 files changed, 60 insertions, 0 deletions

diff --git a/src/input/bouquet.input.pamphlet b/src/input/bouquet.input.pamphlet
new file mode 100644
index 00000000..28d9b215
--- /dev/null
+++ b/src/input/bouquet.input.pamphlet
@@ -0,0 +1,60 @@
+\documentclass{article}
+\usepackage{axiom}
+\begin{document}
+\title{\$SPAD/src/input bouquet.input}
+\author{The Axiom Team}
+\maketitle
+\begin{abstract}
+\end{abstract}
+\eject
+\tableofcontents
+\eject
+\section{License}
+<<license>>=
+--Copyright The Numerical Algorithms Group Limited 1994.
+@
+<<*>>=
+<<license>>
+-- relative size of the arrow head compared to the length of the arrow
+arrowScale := 0.2@DFLOAT
+ 
+-- angle of the arrow head
+arrowAngle := %pi-%pi/10.0@DFLOAT
+ 
+-- Add an arrow head to a line segment, which starts at 'p1', ends at 'p2',
+-- has length 'len', and and angle 'arg'.  We pass 'len' and 'arg' as
+-- arguments since they were already computed by the calling program
+makeArrow(p1, p2) ==
+  delta := p2 - p1
+  len := arrowScale * length delta
+  theta := atan(delta.1, delta.2)
+  c1 := len * cos(theta + arrowAngle) 
+  s1 := len * sin(theta + arrowAngle)
+  c2 := len * cos(theta - arrowAngle) 
+  s2 := len * sin(theta - arrowAngle)
+  z  := p2.3*(1 - arrowScale)
+  p3 := point [p2.1 + c1, p2.2 + s1, z, p2.4]
+  p4 := point [p2.1 + c2, p2.2 + s2, z, p2.4]
+  [[p1, p2, p3], [p2, p4]]
+ 
+drawBouquet(n,title) ==
+  angle := 0.0@DFLOAT
+  sp := create3Space()$ThreeSpace(DFLOAT)
+  for i in 0..n-1 repeat
+    start := point [0.0@DFLOAT,0.0@DFLOAT,0.0@DFLOAT,angle] 
+    end   := point [cos angle, sin angle, 1.0@DFLOAT, angle]
+    arrow := makeArrow(start, end)
+    for a in arrow repeat curve(sp,a)
+    angle := angle + 2*%pi/n
+  makeViewport3D(sp,title)$VIEW3D
+
+
+
+
+
+@
+\eject
+\begin{thebibliography}{99}
+\bibitem{1} nothing
+\end{thebibliography}
+\end{document}