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Re: "geo:" URIs

From: Raj Singh <rsingh@opengeospatial.org>
Date: Tue, 28 Jun 2011 08:43:11 -0400
Cc: Alexander Mayrhofer <alexander.mayrhofer@nic.at>, public-poiwg@w3c.org
Message-Id: <130AF4C7-E78A-44FE-B056-B86526481F6A@opengeospatial.org>
To: Jens de Smit <jens@layar.com>
But maybe if you are describing an object using 3D coordinate data, you probably have enough data in there that:
<gml:Point srsName="urn:ogc:def:crs:EPSG:6.6:4979" srsDimension="3">
doesn't seem too verbose compared to the tens or hundreds of 3D points you are listing?

In GML you can specify the CRS once in a parent element, so the 3D POI would look something like:
<location srsName="urn:ogc:def:crs:EPSG:6.6:4979" srsDimension="3">
  <point-n>y.yyyyyyy xx.xxxxxxx zz.z</point-n>
  <point-n>y.yyyyyyy xx.xxxxxxx zz.z</point-n>
  <point-n>y.yyyyyyy xx.xxxxxxx zz.z</point-n>
  <point-n>y.yyyyyyy xx.xxxxxxx zz.z</point-n>
  <point-n>y.yyyyyyy xx.xxxxxxx zz.z</point-n>
  ...
</location>
---
Raj
The OGC: Making location count...
http://www.opengeospatial.org/contact


On Jun 28, at 6:12 AM, Jens de Smit wrote:

> The one thing I don't like about GML is, that as soon as you want to
> do 3-dimensional points, you have to explicitly specify <gml:Point
> srsName="urn:ogc:def:crs:EPSG:6.6:4979" srsDimension="3"> which is
> very verbose. RFC5870 makes this easier, but otherwise I'm not yet
> convinced that RFC5870 is superior to the GML profile. But, since you
> have spent a lot more time on this, perhaps you could make us see
> otherwise?
Received on Tuesday, 28 June 2011 12:43:56 UTC

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