Box the compass
sub point (Int $index) {
my $ix = $index % 32;
if $ix +& 1
{ "&point(($ix + 1) +& 28) by &point(((2 - ($ix +& 2)) * 4) + $ix +& 24)" }
elsif $ix +& 2
{ "&point(($ix + 2) +& 24)-&point(($ix +| 4) +& 28)" }
elsif $ix +& 4
{ "&point(($ix + 8) +& 16)&point(($ix +| 8) +& 24)" }
else
{ <north east south west>[$ix div 8]; }
}
sub test-angle ($ix) { $ix * 11.25 + (0, 5.62, -5.62)[ $ix % 3 ] }
sub angle-to-point(\𝜽) { floor 𝜽 / 360 * 32 + 0.5 }
for 0 .. 32 -> $ix {
my \𝜽 = test-angle($ix);
printf " %2d %6.2f° %s\n",
$ix % 32 + 1,
𝜽,
tc point angle-to-point 𝜽;
}
Output:
1 0.00° North
2 16.87° North by east
3 16.88° North-northeast
4 33.75° Northeast by north
5 50.62° Northeast
6 50.63° Northeast by east
7 67.50° East-northeast
8 84.37° East by north
9 84.38° East
10 101.25° East by south
11 118.12° East-southeast
12 118.13° Southeast by east
13 135.00° Southeast
14 151.87° Southeast by south
15 151.88° South-southeast
16 168.75° South by east
17 185.62° South
18 185.63° South by west
19 202.50° South-southwest
20 219.37° Southwest by south
21 219.38° Southwest
22 236.25° Southwest by west
23 253.12° West-southwest
24 253.13° West by south
25 270.00° West
26 286.87° West by north
27 286.88° West-northwest
28 303.75° Northwest by west
29 320.62° Northwest
30 320.63° Northwest by north
31 337.50° North-northwest
32 354.37° North by west
1 354.38° North
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