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Re: Map Projection Woes [message #48436 is a reply to message #48351]

Fri, 14 April 2006 08:15

James Kuyper
Messages: 425
Registered: March 2000

Senior Member

David Fanning wrote:
> Matt Savoie writes:
>
>> Determining whether a given point is inside or outside a given spherical
>> polygon is rather difficult.
>
> Oh, oh. No *wonder* I haven't seen anything like
> this around here!
>
> Humm. Guess I'll go think about Wayne's ARRAY_OR
> problem. That sounds like more fun than this. :-(

While the general case is very difficult, your case should be much
simpler. Your particular spherical polygon is just an approximation to
a great circle, which means that a lot of the tricky special cases
shouldn't apply. However, I don't think I know enough about the problem
that you're running into, to suggest a specific procedure for doing it.
Could you give more details?

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[Message index]

		Re: Map Projection Woes By: David Fanning on Thu, 13 April 2006 13:45
		Re: Map Projection Woes By: savoie on Thu, 13 April 2006 12:44
		Re: Map Projection Woes By: James Kuyper on Fri, 14 April 2006 08:15

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