On Tue, Aug 14, 2012 at 7:45 AM, Radim Blazek <[email protected]>wrote:
> On Wed, Aug 8, 2012 at 10:39 PM, Andrea Aime
> <[email protected]> wrote:
> > Hi Radim, long time no see.
> > The WCS spec uses the urn: form, urn:ogc:def:crs:EPSG::4326, that
> mandates
> > the data to be expressed in lat/lon order, GeoServer respects that to the
> > letter.
>
> Do you mean that the GetCoverage result output is rotated for 4326?
> That is exagerated IMO.
>
It is rotated yes. It seems to me no more exagerated than having coordinates
flipped in vector data. Very inconvenient with the existing tools, but
that's how OGC wants it
and it has been inconvenient for WFS as well.
>
> > The was no released WCS client to use at the time, GeoServer is the
> > reference implementation,
> > it was tested as such, nobody from OGC complained.
>
> Do they have any client or test suite? Which one? Or it was never
> really tested? What clients are people usually using with GeoServer?
>
All the client calls I've seen prepare custom made request from javascript
front ends or other kinds of server side scripts, never going through a
proper WCS client.
>
> >> The result with 1.1.1 is also larger by 1 pixel in each direction
> >> (1.0.0 works OK), is it taken into account that 1.1.1 grid is using
> >> cell centers, not edges?
> >
> > OGC mandates cell centers as the one and only way to deal with raster
> data
> > as far as I know, I believe we should be using it on both WCS versions
> but
> > I'm not sure, they were implemented by two different people and the code
> > paths are quite different.
>
> I was wrong, GeoServer gives result smaller by 1 pixel if bbox is
> defined by "pixel" centers (grid points), so I have to use bbox
> extended by 1 pixel, the same like WMS 1.3 which is not what WCS 1.1
> requires AFAIK.
>
Can you cite the parts of the spec that makes you think so?
Cheers
Andrea
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