[OpenLayers-Dev] Tiled WFS layer

[Cameron Shorter]

Martijn,
I don't have any fixes, but am interested to hear that you are using WFS 
code with Openstreetmap. Does this mean that OSM now has a WFS interface?
Is it a query only interface, or is there transactional support as well?

Martijn van Oosterhout wrote:
> For a POI layer for OSM I've been working on a tiled version of the
> WFS layer (apparently I'm not the only one). I have it working now.
> It's really only minor changes from the standard TMS layer.
>
> There are some minor changes to the Tile.WFS class, which you can see here:
> http://dev.openstreetmap.org/~kleptog/pois/Tile_WFS.js
> Really only the changes in the "destroyAllFeatures" and the "draw"
> functions are necessary, otherwise the markers keep getting created
> and never destroyed.
>
> The actual WFSGrid is here:
> http://dev.openstreetmap.org/~kleptog/pois/WFSGrid.js
> It's really a minor variation on the TMS, the diff is here:
> http://dev.openstreetmap.org/~kleptog/pois/wfsgrid.txt
> The most necessary bits were the add/removeMarker, needed by Tile.WFS
> to interact with the marker layer.
>
> There are a few remaing issues:
> - Due to the way Layer.Grid works you need aggressive caching on the
> server side or it'll keep requesting the same thing over and over
> again.
> - The Markers disappear while dragging
> - It feels slow somehow...
> - The marker layer currently needs to be created by the user, but I've
> just been told it's ok to inherit from Markers and Grid
> simultaneously.
>
> Anyway, this is just to let you guy know where I'm up to, in case
> anybody has ideas. Complete working demo is here:
> http://dev.openstreetmap.org/~kleptog/pois/pois2.html
>
> Thanks in advance,
>   


-- 
Cameron Shorter
Systems Architect, http://lisasoft.com.au
Tel: +61 (0)2 8570 5050
Mob: +61 (0)419 142 254