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Martin Daly wrote:
Definitely not a lat/lon dataset.Im not sure where I need to indicate that, and how to do so. Its a Lambert Conformal projection with arbitrary parameters, theres no fixed EPSG code that I know of. The geotiff has a "user defined" ProjectedCSTypeGeoKey:One cheat would be to use/abuse the "Engineering" or "Image" CRS-s that are allowed alternatives to "EPSG:xxxx". We could certainly modify our client to allow that to be used. As I said in my previous response, at the moment we trust the extents of the response GeoTIFF, rather than the request BBOX (not sure why come to think of it). We could extend this to also trust the response GeoTIFF CRS in the case of "Engineering" or "Image".
My preferrence would also be to trust the returned dataset. It seems like there may be some good reasons why the return may not match exactly the request. Of course, this assumes that the returned dataset is self-describing, which is still a goal rather than a fact.
Sometimes I think half of my code is spent dealing with a cylindrical earth!Just wait until someone brings up the lat/lon-vs-lon/lat thing. Then you know that you've been assimilated into OGC.
I cant wait.
One problem with requiring a fixed range like [-180,180], is that its when representing areas that cross the the seam, the left coordinate is less than the right. So you need to also clarify that the area included is easternly from the first point (or something like that). I cant say the schema makes that clear in my mind:I'm not sure that schema can do this, but look forward to seeing you try!
i was just thinking it could be added to the schema documentation, as a clarification to the meaning
My interoperability concern is more for the case when the extents don't go outside to [0,180] and [0,90] range. How can a client know whether this is right or left of the prime meridian, or above or below the Equator?
we always assume + means north, east, and - means south, west
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