[OpenLayers-Users] loading heavy WFS. solutions?

[Eric Lemoine]

Hi giohappy :-)

MapFish doesn't currently include anything for grid/map interaction
(e.g. clicking on a grid row selects the corresponding feature on the
map). But this is something we'll be looking at soon since we need for
a project. However we've just added classes useful for adding features
to grids (stores actually). Please take the discussion to the MapFish
mailing list if you want to know more. Thanks. Eric

2008/9/18, G. Allegri <giohappy at gmail.com>:
> This is exactly the other solution we're considering.
>
> Two approaches:
> 1 - WMS until a certain zoom and then WFS
> 2 - WMS and feature overlay only for "clicked features"
>
> 3 - A mix from the twos: WMS with click->overaly, and then WFS at certain
> zooms.
>
> A specific question for Eric: did you implement grid-map linking in Mapfish?
>
>
> 2008/9/18 Eric Lemoine <eric.c2c at gmail.com>:
>> Hi.
>>
>> We got pretty good results here by using WMS along with
>> GetFeatureInfo-like queries with Handler.Hover. The features resulting
>> from a query can be added to a vector layer and/or to an external grid
>> with 1:1 interaction between the grid records and the features on the
>> map. We found this to be a good tradeoff between user interaction
>> (vector) and performance (raster).
>>
>> Cheers,
>>
>> Eric
>>
>> 2008/9/18, Christopher Schmidt <crschmidt at metacarta.com>:
>>> On Wed, Sep 17, 2008 at 03:10:00PM -0700, percy wrote:
>>>> how would the click handler deal with hover events for a WMS of polygon
>>>> features?
>>>
>>> It wouldn't. You'd use a Hover Handler for something like that. But the
>>> user didn't mention that aspect of things.
>>>
>>> There are limitations to what you can do in the browser. Displaying 12MB
>>> of binary data as vectors are about 11.9MB beyond them.
>>>
>>> Regards,
>>> --
>>> Christopher Schmidt
>>> MetaCarta
>>> _______________________________________________
>>> Users mailing list
>>> Users at openlayers.org
>>> http://openlayers.org/mailman/listinfo/users
>>>
>>
>