You can make a spec short and sweet, but there is no guarantee that it will be implemented correctly. Did my woofing about agile standardization anger the format gods, or is GeoJSON really the dribble cup of the "GeoWeb" after all? Check out this excerpt from the timeline of Bill Dollins, who writes from the countryside near Washington, D.C.:
{ ...,
"id":5993294422,
"geo":{"type":"Point","coordinates":[38.50745,-76.76051]},
}
For all the bloggage, not a single geo pundit has noticed that there's a problem. Do you?
Update (2009-11-25): Chris Schmidt summarizes the GeoJSON coordinate order debate.
Update (2009-11-26): To be fixed in the next version of the Twitter API (via Andrew Larcombe and Bill Dollins).
Either that, or he's mapping Antarctica.
No spatial reference? I know we can assume it, but it isn't explicitly stated.
and "id" belongs in the properties
Coordinate order is the only problem. I don't think developers necessarily have to buy in to features and feature collections from the standard GIS model, but we all have to agree on coordinates.
Somewhere, Dale Lutz's head is exploding. Let your X be your X, your Y be your Y, anything else is the work of the Evil One.
Well, what is correct? X,Y or Y,X - in Norway we have the official Y X instead of the "international / US / UK" X Y.
Should all countries also ride the car on the right side of the road and not the left side?
If all of our national roads were mapped into the same transit space, intertwined, without any borders or gates -- so that US-40 (for example) connected to France's A9 (the Languedocien), and also connected to almost any other major road in the world -- you'd certainly want to prevent systemic and massive accidents by forming a global consensus on traffic direction. This is the situation on the World Wide Web. Whether GeoJSON coordinates should be [easting, northing] or [northing, easting] (or [westing, southing]) is, to some degree, arbitrary. The benefits of agreement are not arbitrary. Global consensus allows global interoperability.
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1Re: More lessons of standardization
daryl, 2009-11-24T13:16:33Z
it has y x and not x y ?