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Ray-casting algorithm: Difference between revisions
Added AHK
(→{{header|Python}}: scrolling: use em, not ex, since em is defined to be equal to the font line height and so will be more consistent) |
(Added AHK) |
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Line 72:
(To avoid the "ray on vertex" problem, the point is moved upward of a small quantity ε)
=={{header|AutoHotkey}}==
<lang ahk>
PiP(P,N) ; P is point, N is number of sides
{
count := 0
Loop %N%
If ray_intersects_segment(P,A_Index)
count++
if mod(count,2)
return false ; P isn't in the polygon
else
return true ; P is in the polygon
}
</lang>
=={{header|C}}==
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