[OpenLayers-Users] OpenLayers, Google Maps, and WFS example

[Erik Uzureau]

Justin, sounds like you have been hard at work.

The map resizing issues is still unfortunately a murky area with OL.

If you would like to share your patch with us, it would be well appreciated.

http://trac.openlayers.org/wiki/HowToContribute

erik

On 7/9/07, justin merz <jrmerz at gmail.com> wrote:
>
>
> I am sorry if this has already been done/covered, but I have been in the
> processes of developing some online apps using OL and Google layers.  I have
> version of OL (using ESPG 41001) up and running with the Google Layers
> here...
>
>
> http://team.resources.ca.gov/justin/lightweight_viewer.aspx
>
> Issues I ran into and seem to have a fix for (or at least a working hack):
>
>  -> WFS overlay not fitting/floating (depending on pan/zoom).  This was done
> by using doing projection conversions in
> getLongitudeFromMapObjectLonLat,
> getLatitudeFromMapObjectLonLat, and getMapObjectLonLatFromLonLat in
> OpenLayers.Layer.Google.  As well as defining new extents and zoom levels.
>
>  -> Google Layers moving center position upon a layer switch, after the
> map/browser has been resized.  This I have not totally figured this out, but
> the OL view plane and Google view plane seem to be off.  I fixed this with a
> hack in setMapObjectCenter in Google.js.  Basically I set center, tell the
> google API to see if the map size has changed, then set center again.
>
>
>  -> Other:  I have also added a very quick and dirty "loading …" display for
> WFS and a WFS feature selector that allows for quick display of other
> information inside GML.  These use outside div's and have not yet been
> migrated into OL.  Also on a browser note, I made two different classes for
> vector rendering styles, one for IE and one for everything else.
>
>
>
> -Justin Merz
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