Hi,
On 16/09/12 15:33, Jeroen De Dauw wrote:
> GeoCoordinatesValue := 'GeoCoordinatesValue(' decimal decimal
decimal ')'
Altitude is probably something we will not have in many cases, so I
think this ought to be optional. Another optional argument would be the
globe to which the coordinates belong. Different globes have different
ways of measuring coordinates, so a specific set of coordinates that is
valid on one might mean something else on another and simply be invalid
on a third.
Yes, this DataValue is certainly in early draft stage. I will change the name as suggested by Katie. For the content, should we have optional altitude and optional planet identifier (what is the format of this? is there an IRI for Mars?)?
Wikipedia uses a globe parameter and supports only a few other celestial bodies:
For Earth, by default, the WGS84 (EPSG:4326) is used.
With a globe parameter, one of these is used:
There also are celestial coordinates, which we may want to support:
Cheers,
Katie
Markus