[MapProxy] Reprojecting google maps

[Max Stephan]

Hi Oliver,

We don´t have an agreement with google concerning this. The reason why we want to reproject the google-maps-Data is that we are overlaying it with several WMS-Layers in our Open-Layers-based application. No problem so far but the users are able to add their own WMS-Servers and some of them don´t support EPSG:900913 but I guess each of them supports EPSG:4326.
So our second approach is to reproject data from those servers to EPSG:900913 but the problem is that this is not really working client-side (there is one approach using gdal-warp.js but it´s really slow and causes browser-crashes). Would it be possible to add those WMS-Servers to mapproxy temporarily to reproject them there? Is there an interface for such use cases?

Best regards,
Max Stephan

-----Original Message-----
From: Oliver Tonnhofer [mailto:olt at omniscale.de] 
Sent: 07 January 2011 14:47
To: Max Stephan
Cc: Dominik Helle; mapproxy at lists.osgeo.org
Subject: Re: [MapProxy] Reprojecting google maps


On 07.01.2011, at 14:26, Max Stephan wrote: 
> 
> Thanks for the quick reply. Could you give me some advice how I add google maps as a source in the configuration? Do you know if caching and reprojecting is allowed from google? I found this quote in the license agreement: ". you must not . 10.3. pre-fetch, cache, or store any Content, except that you may store limited amounts of Content for the purpose of improving the performance of your Maps API Implementation if you do so temporarily, securely, and in a manner that does not permit use of the Content outside of the Service;" which in my opionion says I could cache it but I have to make sure that I can only access the cached data from my website. Do you have any experience with this?

They don't allow any access to the tiles except with the Google Maps API (AFAIK). So I wouldn't do this unless you have some special agreement with Google.

Regards,
Oliver

-- 
Oliver Tonnhofer <olt at omniscale.de>
Omniscale - Dominik Helle, Oliver Tonnhofer GbR
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