Subject: [Ecrit] [Fwd: DISCUSS: draft-ietf-ecrit-mapping-arch]

From: Hannes Tschofenig <[email-masked]>
Date: Thu, 21 Feb 2008 10:53:23 +0200

-------- Original Message --------
Subject: 	DISCUSS: draft-ietf-ecrit-mapping-arch
Date: 	Wed, 20 Feb 2008 22:14:25 -0800 (PST)
From: 	Cullen Jennings <[email-masked]>
To: 	[email-masked]
CC: 	[email-masked], 
[email-masked]

Discuss:
These are two pretty easy to fix issues:

We need to have this document in sync with LOST about what shapes are allowed in a location. Right now Lost seems to allow Point, Polygon, Circle, Ellipse, ArcBand.

   Coverage regions are described by sets of polygons enclosing
   contiguous geographic areas or by descriptors enumerating groups of
   civic locations.  For the former, the LoST server performs a point-
   in-polygon operation to find the polygon that contains the query
   point.  (More complicated geometric matching algorithms may be added
   in the future.)

The forest guides need to decide which coverage region the query is in. I think the FG need to use the same algorithm that the LOST servers use or it is possible to miss the correct tree.

_______________________________________________
Ecrit mailing list
[email-masked]
http://www.ietf.org/mailman/listinfo/ecrit