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############################################################################
#
# File: rstarlab.icn
#
# Subject: Program to draw regular stars
#
# Author: Ralph E. Griswold
#
# Date: May 2, 2001
#
############################################################################
#
# This file is in the public domain.
#
############################################################################
#
# This program draws regular stars. See
#
# Geometric and Artistic Graphics; Design Generation with
# Microcomputers, Jean-Paul Delahaye, Macmillan, 1987, pp. 5-7.
#
# The window is square. The window size can be given on the command line,
# default 600.
#
# The present user interface is crude. To see all the regular stars
# that are provided by default, type
#
# all
#
# from standard input. After each star is drawn, the program waits
# for an event before going on to the next star.
#
# Alternatively, a single star can be drawn by typing its name preceded
# by an equals sign. The names are rstar01 through rstar06. For example,
#
# =rstar02
#
# draws the second star.
#
# In future extensions, provision will be made for user-defined stars.
#
############################################################################
#
# Requires: Version 9 graphics
#
############################################################################
#
# Links: drawlab, rstars, rstartbl
#
############################################################################
link drawlab
link rstars
link rstartbl
global size
procedure main(argl)
size := integer(argl[1]) | 600
drawlab(rstar, rstartbl, "regular stars")
end
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