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Ingy döt Net 2023-07-01 11:58:00 -04:00
parent 7387c8f97b
commit cb5bb5e222
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22
Task/Constrained-random-points-on-a-circle/Perl/constrained-random-points-on-a-circle-1.pl Normal file
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my @points;
while (@points < 100) {
my ($x, $y) = (int(rand(31))-15, int(rand(31)) - 15);
my $r2 = $x*$x + $y*$y;
next if $r2 < 100 || $r2 > 225;
push @points, [$x, $y];
}
print << 'HEAD';
%!PS-Adobe-3.0 EPSF-3.0
%%BoundingBox 0 0 400 400
200 200 translate 10 10 scale
0 setlinewidth
1 0 0 setrgbcolor
0 0 10 0 360 arc stroke
0 0 15 360 0 arcn stroke
0 setgray
/pt { .1 0 360 arc fill } def
HEAD
print "@$_ pt\n" for @points;
print "%%EOF";

13
Task/Constrained-random-points-on-a-circle/Perl/constrained-random-points-on-a-circle-2.pl Normal file
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@range = -15..16;
for $x (@range) {
for $y (@range) {
$radius = sqrt $x**2 + $y**2;
push @points, [$x,$y] if 10 <= $radius and $radius <= 15
}
}
push @sample, @points[int rand @points] for 1..100;
push @matrix, ' ' x @range for 1..@range;
substr $matrix[15+$$_[1]], 15+$$_[0], 1, '*' for @sample;
print join(' ', split '', $_) . "\n" for @matrix;