Hi,

Funny thing, i just discovered this endpoint again just now and found
out that it does not work for "env" variables as advertised.

I tried various combinations of aparams=env and
avalues=parameter:value1,parameter:value2 etc but none seems to be working.

I started to debug the code to find the issue, but it may be more future
proof to checkout that download WPS.

I am not yet sure how good the old animate endpoint integrated into WMS
clients, as it tends to be somewhat "GetMap" like.

So i guess it could be used in e.g. openlayers to request and draw those
animated gifs on the map.

I assume that this is getting more complicated with a WPS, but that
should no real blocker...


Regards,

Johannes Weskamm


Am 18.03.21 um 15:53 schrieb Andrea Aime:
> Hi all,
> as you know, the WPS download module is now a supported extension. The
> module provides
> a good asynchronous animation building facility, which can be called
> in a asynchronous way and
> generates MP4 movies.
>
> Maybe not many know that WMS has an "animator", which can build
> animated gifs:
> https://docs.geoserver.org/latest/en/user/tutorials/animreflector.html
>
> It does not compare very well to the WPS download:
>
>  1. Can only do synchronous requests
>  2. It's memory bound
>  3. Normally limited to URL size (I guess one could do a form POST
>     though, haven't tried)
>  4. Can only build animated GIFs (hence, relatively low compression)
>  5. Can only work with local GeoServer layers (WPS download can do on
>     the fly cascade as well)
>
> To be fair, it has one advantage over the WPS download, in that it can
> animate over any WMS
> request parameter, like changing the bbox, or a view param, while WPS
> download only over time.
>
> I don't think anyone is seriously using it (did you know it was there
> in the first place?), and given
> its runtime limits and memory consumption, I'd suggest to just drop
> it. Only on the dev branch,
> and we can include a warning in the 2.19.0 release announcement for
> eventual users to switch
> to the WPS download.
>
> Opinions??
>
> Cheers
> Andrea
>
> *: well, almost superceded!
>
> == GeoServer Professional Services from the experts! Visit
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