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#!/usr/bin/perl -w
# Copyright 2013 Kevin Ryde
# This file is part of Math-PlanePath.
#
# Math-PlanePath is free software; you can redistribute it and/or modify it
# under the terms of the GNU General Public License as published by the Free
# Software Foundation; either version 3, or (at your option) any later
# version.
#
# Math-PlanePath is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
# or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
# for more details.
#
# You should have received a copy of the GNU General Public License along
# with Math-PlanePath. If not, see <http://www.gnu.org/licenses/>.
use 5.004;
use strict;
use Math::PlanePath::FourReplicate;
# uncomment this to run the ### lines
#use Smart::Comments;
{
require Math::BaseCnv;
my $path = Math::PlanePath::FourReplicate->new;
foreach my $n (0 .. 2**30) {
my ($x,$y) = $path->n_to_xy($n);
my ($n_lo,$n_hi) = $path->rect_to_n_range(0,0,$x,$y);
if ($n_hi < $n) {
my $n4 = Math::BaseCnv::cnv($n,10,4);
my $n_hi4 = Math::BaseCnv::cnv($n_hi,10,4);
print "n=$n4 outside n_hi=$n_hi4\n";
}
}
exit 0;
}
{
require Math::PlanePath::FourReplicate;
my $path = Math::PlanePath::FourReplicate->new;
my @table;
my $xmod = 4;
my $ymod = 4;
foreach my $n (0 .. 2**8) {
my ($x,$y) = $path->n_to_xy($n);
my $mx = $x % $xmod;
my $my = $y % $ymod;
my $href = ($table[$mx][$my] ||= {});
$href->{$n%4} = 1;
}
my $width = 3;
foreach my $my (reverse 0 .. $ymod-1) {
printf "%2d", $my;
foreach my $mx (0 .. $xmod-1) {
my $href = ($table[$mx][$my] ||= {});
my $str = join(',', keys %$href);
printf " %*s", $width, $str;
}
print "\n";
}
print "\n ";
foreach my $mx (0 .. $xmod-1) {
printf " %*s", $width, $mx;
}
print "\n";
exit 0;
}
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