Point in Poly

Geoff Canyon gcanyon at gmail.com
Wed May 29 11:53:21 EDT 2013

On Wed, May 29, 2013 at 10:44 AM, Dar Scott <dsc at swcp.com> wrote:

> Consider a horizontal line through the point.  Find the points where it
> crosses the line segments of the sides.  (Take care of the special case of
> a line segment being on your horizontal line.)  Count the points to the
> left of your point.  If it is odd, then the point is inside.

Ah, the CS 202 solution -- I was wondering if anyone would bring this up.
You're giving me flashbacks, Dar ;-)

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