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Diffstat (limited to 'ipl/gprogs/design3.icn')
-rw-r--r-- | ipl/gprogs/design3.icn | 63 |
1 files changed, 63 insertions, 0 deletions
diff --git a/ipl/gprogs/design3.icn b/ipl/gprogs/design3.icn new file mode 100644 index 0000000..3e31dbc --- /dev/null +++ b/ipl/gprogs/design3.icn @@ -0,0 +1,63 @@ +############################################################################ +# +# File: design3.icn +# +# Subject: Program to draw square design +# +# Author: Ralph E. Griswold +# +# Date: February 17, 1995 +# +############################################################################ +# +# This file is in the public domain. +# +############################################################################ +# +# This program draws a design in which i points around a square are +# all connected to each other. The number of points along a side +# (default 10) and the distance between them (default 40) are given as +# command-line arguments. +# +############################################################################ +# +# Requires: Version 9 graphics +# +############################################################################ +# +# Links: gobject, joinpair, wopen +# +############################################################################ + +link gobject +link joinpair +link wopen + +procedure main(argl) + local i, j, k, d, extent, points, x, y + + i := integer(argl[1]) | 10 + d := integer(argl[2]) | 40 + + extent := i * d + + WOpen("label=mandala", "width=" || extent, "height=" || extent) | + stop("*** cannot open window") + + points := [] + + every x := 0 to extent by d do { # x direction, with corners + put(points, Point(x, 0)) # top + put(points, Point(x, extent)) # bottom + } + + every y := d to extent - d by d do { # y direction, without corners + put(points, Point(0, y)) # left side + put(points, Point(extent, y)) # right side + } + + joinpair(points, points) + + Event() + +end |