Pentagram: Difference between revisions
Content added Content deleted
(→{{header|Perl 6}}: anonymous variables are stateful by default) |
(→{{header|Perl 6}}: various simplifications) |
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<lang perl6>constant $dim = 200; |
<lang perl6>constant $dim = 200; |
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constant $sides = 5; |
constant $sides = 5; |
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INIT say qq:to/STOP/; |
INIT say qq:to/STOP/; |
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<?xml version="1.0" standalone="no" ?> |
<?xml version="1.0" standalone="no" ?> |
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STOP |
STOP |
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END say '</svg>'; |
END say '</svg>'; |
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my @vertices = map { 0.9 * $dim * cis($_ * 2 * pi / $sides) }, ^$sides; |
my @vertices = map { 0.9 * $dim * cis($_ * 2 * pi / $sides) }, ^$sides; |
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@vertices = flat |
@vertices = map |*.reals, flat @vertices[0, 2 ... *], @vertices[1, 3 ... *]; |
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.map: |*.reals».fmt("%0.3f"); |
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@vertices.push(@vertices[0,1]); |
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say pline @vertices; |
say pline @vertices; |
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for @vertices.rotor(4 => -2, :partial) -> @p {say pline @p}; |
for @vertices.rotor(4 => -2, :partial) -> @p {say pline @p}; |
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sub pline (*@q) { |
sub pline (*@q) { |
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qq:to/STOP/; |
qq:to/STOP/; |
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<polyline points=" |
<polyline points="@q[|^@q, 0, 1].fmt("%0.3f")" |
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style="fill:seashell;stroke:{<black red orange blue purple green>[$++ % 6]};stroke-width:2" |
style="fill:seashell;stroke:{<black red orange blue purple green>[$++ % 6]};stroke-width:2" |
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transform="translate($dim, $dim) rotate(180)" /> |
transform="translate($dim, $dim) rotate(180)" /> |
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