MathGroup Archive 2000

[Date Index] [Thread Index] [Author Index]

Search the Archive

Re: Point inside a plygon?

  • To: mathgroup at
  • Subject: [mg25330] Re: [mg25239] Point inside a plygon?
  • From: AES <siegman at>
  • Date: Sat, 23 Sep 2000 03:35:53 -0400 (EDT)
  • Organization: Stanford University
  • References: <8q771a$>
  • Sender: owner-wri-mathgroup at

In article <8q771a$t1n at>, Andrzej Kozlowski 
<andrzej at> wrote:

> on 9/17/00 5:47 PM, Adriano Moreira at adriano at wrote:
> > Hi,
> > 
> > I need a routine to check if a point is inside or outside a polygon
> > (simple polygon non self-intersecting).
> > Any help appreciated.
> > 
> > Adriano Moreira

This brings back memories, namely that there is a very fast, powerful 
"point inside polygon?" test that is somehow built into the QuickDraw 
part of the Mac operating system.

Back when it used to be possible to make easy direct calls to the Mac 
toolbox from MS QuickBasic, this was a very handy and useful capability

Possible to somehow call this from Mathematica?  (on Macs anway)

  • Prev by Date: Re: bug alert!
  • Next by Date: winding number
  • Previous by thread: Re: Point inside a plygon?
  • Next by thread: RE: Point inside a plygon?