[Geojson] GeometryCollection not treated as a Geometry type
Stephen Battey
Stephen.Battey at dottedeyes.com
Mon Oct 8 02:00:40 PDT 2007
I've modified my code to handle this change and it all makes sense apart
from an odd naming convention that's occurred in some of my constants.
GeoJSONSingleGeometry.MULTI_POINT
GeoJSONSingleGeometry.MULTI_LINE_STRING
GeoJSONSingleGeometry.MULTI_POLYGON
At first it seemed a little strange to be referring to a multi
point/line/polygon as a 'single' geometry. But, although the names sound
contradictory, a single geometry can be made of multi points or
polygons.
Well, this got me wondering ... if we can define a geometry using a
geometry collection (i.e. multiple geometries), are MultiPoint,
MultiLineString and MultiPolygon redundant?
Steve
> -----Original Message-----
> From: geojson-bounces at lists.geojson.org
> [mailto:geojson-bounces at lists.geojson.org] On Behalf Of
> Christopher Schmidt
> Sent: 05 October 2007 22:51
> To: geojson at lists.geojson.org
> Subject: Re: [Geojson] GeometryCollection not treated as a
> Geometry type
>
>
> On Fri, Oct 05, 2007 at 05:33:25PM -0400, Christopher Schmidt wrote:
> > Currently, GeometryCollection is not treated as a geometry
> type. This
> > is essentially an oversight -- up until now, the people primarily
> > working on the spec didnt' really use GeometryCollection,
> to the best
> > of my knowledge.
>
> After re-reading the spec, I realized that we kind of treated
> GeometryCollection as a geometry. But not really. I had
> bumped the version before that (thinking 'oh, people support
> draft4 now, people like OpenLayers 2.5'), but I'm just going
> to leave it at this point.
>
> The change made to the spec is:
>
> http://wiki.geojson.org/index.php?title=GeoJSON_draft_version_
5&diff=157&oldid=155
Feedback welcome. Going to go through the rest of the doc now and see if
it's unclear anywhere else.
Regards,
--
Christopher Schmidt
MetaCarta
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