ubl — archive

Defining Geograpic areas in UBL - How?

From: Ken Holman <[email protected]>
To: [email protected]
Date: Sat, 08 Aug 2009 04:49:00 -0000

At 2009-08-07 21:56 -0400, Andrew Schoka wrote: >Thanks for your prompt response to my request however, I think I didn't do a >very good job of explaining the Freightwise requirement to describe a >geographic area. It would be the area bounded by lines connecting points >(min of 3) together to form a polygon of sorts. The example I created for you is a specification of a polygon of three points where each point is a lat/long co-ordinate. I note in my cut and paste haste that I mistakenly used "North" instead of "West" or "East" for longitude, but my attempt was just that: to create an arbitrary geographical shape with an arbitrary number of location coordinates (the UBL definition for a location coordinate is "Information about physical (geographical) location." >It could be an even larger >number of points that may get connected together to form a circular area. The cardinality of cac:LocationCoordinate in cac:Address is "zero to many" so you can specify any number of points you wish for an arbitrarily shaped polygon. >Or how about a circular area defined by a single point and a radius? There you've got me stumped ... I can't quickly find a construct that would be suitable for that. There is cbc:CoordinateSystemCode "An identifier for the location system used." I suppose I might be able to say something like a code representing "Circular centre", thus indicating the geographic location of the centre point, but I don't see another item in cac:LocationCoordinate in which I would specify a radius. Perhaps in UBL 2.1 all we need to add is an optional and repeatable cac:Dimension in cac:LocationCoordinate ... then we could use units of measure and specify using kilometres or miles the length of the radius of a circle. Even if this doesn't satisfy your requirement, I think it might be useful in the future and I hope the PSC/TSC can discuss the appropriateness of adding it. Until then, how about simply as free text in cac:AddressLine/cbc:Line? >I really need to ask Freightwise for a real world example of how they intend >to use the area location in their expected reportes. I look forward to hearing more! . . . . . . . . . . . Ken -- Crane Softwrights Ltd. http://www.CraneSoftwrights.com/o/ Training tools: Comprehensive interactive XSLT/XPath 1.0/2.0 video Video lesson: http://www.youtube.com/watch?v=PrNjJCh7Ppg&fmt=18 Video overview: http://www.youtube.com/watch?v=VTiodiij6gE&fmt=18 G. Ken Holman mailto:[email protected] Male Cancer Awareness Nov'07 http://www.CraneSoftwrights.com/o/bc Legal business disclaimers: http://www.CraneSoftwrights.com/legal