On Tue, Mar 26, 2013 at 8:48 PM, Simon Hartley <[email protected]>wrote:
> Hello Andrea,****
>
> ** **
>
> > The buffer in GetMap determines the extra search area for features whose
> geometry is outside of the requested area,****
>
> > but whose symbolizer is big enough to make it appear in the painted map
> anyways.****
>
> > This is sent down to GeoTools as a single value, if you want to really
> make that per layer instead of just picking****
>
> > the highest value, you'll have to modify GeoTools StreamingRenderer and
> Layer classes, which would be an API****
>
> > change over there (thus, subject to a format proposal, and limited to
> trunk, you can backport to the stable series****
>
> > only with a positive vote of the project management committee).****
>
> ** **
>
> I’ve not personally interested in extending GetMap as well but because
> currently ****
>
> the documentation and implementation are mainly shared for both operations,
> ****
>
> I assumed that I would not be able to enhance one without the other.****
>
> I’m not sure if separating the implementations is more trouble than it’s
> worth.****
>
> However, changing GeoTools sounds like a lot of effort.****
>
> ** **
>
> I don’t really want to make half-hearted job of changing GetMap because
> if in the future it needs to be improved further, then I don’t know if
> it’s acceptable to change the behaviour.****
>
> Perhaps it’s not a big deal, it’s just that as a user I expect the same
> result with two calls for separate layers as for one merged call.****
>
> ** **
>
> ** **
>
> > No, this one does not make sense. There is already a limit on the
> maximum buffer size (I believe it's 20?), why****
>
> > add this extra complication? ****
>
> > If the caller does not want to specify a buffer for a certain layer, we
> can leave it empty like in styles, e.g.****
>
> > buffer=10,15,,17****
>
> ** **
>
> That’s all I meant.****
>
> ** **
>
> ** **
>
> What’s the minimum that works for you?
>
I think so, but I'm not the final judge, I just have one vote.
Given that you intend to contribute this change back the right place to
discuss it is on the developer mailing list.
Please run your proposal there, if nobody objects it will be good to go
Cheers
Andrea
--
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