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#!/usr/bin/perl
use PDF::API2;
use PDF::API2::Util;
use POSIX;
use Math::Trig;
my $cx=300;
my $cy=400;
my $cr=15;
my $cs=32;
my $ang=30;
$pdf=PDF::API2->new;
$pdf->mediabox(595,842);
$fnt=$pdf->corefont('Verdana-Bold');
foreach my $z (0xf,0xE,0xd,0xC,0xb,0xA,0x8) {
$page = $pdf->page;
$gfx=$page->gfx;
$gfx->textlabel(300,750,$fnt,20,'HSV Colorspace',-color=>'#000',-hspace=>125,-center=>1);
$gfx->strokecolor('#000');
foreach my $s (0 .. 0x7) {
my $ha=$s/2;
foreach my $h (0 .. (12*$ha)-1) {
my $t=sprintf('&%02X%02X%02X',floor(256*$h/(12*$ha)),(($s*2)<<4|($s*2)),($z<<4|$z));
$gfx->fillcolor($t);
$gfx->circle($cx+cos(deg2rad(360*$h/(12*$ha)))*$cs*$s,$cy+sin(deg2rad(360*$h/(12*$ha)))*$cs*$s,$cr);
$gfx->fillstroke;
$gfx->textlabel($cx+cos(deg2rad(360*$h/(12*$ha)))*$cs*$s,$cy-2+sin(deg2rad(360*$h/(12*$ha)))*$cs*$s,$fnt,6,$t,-color=>'#000',-hspace=>80,-center=>1);
}
}
}
$pdf->saveas("$0.pdf");
$pdf->end();
exit;
__END__
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