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| GeoCommunity Mailing List |
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| Subject: | Re: [gislist] google maps and OGC Testing |
| Date: |
02/28/2005 12:25:01 PM |
| From: |
James Macgill |
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At 09:20 AM 2/28/2005 -0800, Paul Ramsey wrote:
>Anthony Quartararo wrote:
>
>>You say that "factors like map generation, response time etc. are not a
>>factor of the specification, rather the vendor implementation of the spec":
>>this may be true to some extent, but are there really so many possibilities
>>of implementing a "standard" that it would manifest itself in significant
>>differences between vendors ?
>
>
>
>Similarly, I can stand up two WMS servers, using the same software and
>data on both, and get radically different performance, if I do not use a
>spatial index on one, and do on another.
Or, (as in the case of Google Maps) you could spend a good chunk of time
up-front pre-rendering all possible map tile requests and store them on a
big high-speed raided disk and get very good performance indeed -provided
you only wanted to serve a static unchanging map that is...
James
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