[Tilecache] GoogleMaps and TileCahe

[bradleyspencer]

Christopher,

I see pink images when I change base layer to GoogleMap or GoogleHyb.

I need reproject when overlaying WMS Landuse atop of Google Maps to get
registration. Not needed for overlaying atop of TerraPages base map but does
not object so left it in.

Cheers,

Brad Spencer
General Manager
CubeWerx Australia Pty Ltd
ABN: 37 115 163 285
Mob: +61 (0)404 841 131
Tel/Fax: +61 (0)2 9481 7024
mailto:brad at cubewerx.com.au
http://www.cubewerx.com.au

-----Original Message-----
From: Christopher Schmidt [mailto:crschmidt at metacarta.com]
Sent: Wednesday, 7 March 2007 10:43 AM
To: bradleyspencer
Cc: tilecache
Subject: Re: [Tilecache] GoogleMaps and TileCahe

On Wed, Mar 07, 2007 at 10:33:48AM +1100, bradleyspencer wrote:
> We have successfully implemented TileCahe as a set of resolutions. This
> works a treat ? performance is super fast compared to WMS version of
> overlay.
>
> However this does not work when using GoogleMaps as base data.
>
> We would like to re-cache based on recommended resolutions that are
> compatible with Google Maps if that is possible.
>
> Has anyone had any experience at this?
>
> See http://demo.cubewerx.com.au/DemoDrapes.html
> <http://www.cubewerx.com.au/DemoDrapes.html>
>
> Just try changing to GoogleMap base map and the overlay turns into the
> dreaded pink image.

1. I don't see any pink tiles.

2. Reproject: true will not work with TileCache in any currently
   existing version of OpenLayers. Set reproject to 'false' to
   get a bit farther.

3. TileCache and Google do not have any currently documented way to work
   together. Some users have done some hacking -- of both TileCache and
   OpenLayers -- to make this happen. I am not one of them, and have no
   knowledge of what is required.

Patches accepted for any issues you do resolve.

Good luck and Best Regards,
--
Christopher Schmidt
MetaCarta