[OSM-dev] How to get offline maps of a large area in reasonable time?

[Shaun McDonald]

On 19 Mar 2009, at 15:21, Ceriel Jacobs wrote:

> Op 19 mrt 2009, om 14:01 heeft Ivo Brodien het volgende geschreven:
>>>>>> Or are there any other ideas on how to get such a big amount of
>>>>>> data?
>>>>>
>>>>> See why almost no-one renders in advance every thing up to zoom  
>>>>> 18 by
>>>>> reading :
>>>>> http://wiki.openstreetmap.org/wiki/Mod_tile
>>>>> http://wiki.openstreetmap.org/wiki/Slippy_Map
>>>
>>> How is there a combination possible,
>>> of static generated tiles for zoom level 0 to 17,
>>> and using mod_tile for zoom 18?
>>
>> That is not what he wanted to say. He simply wanted to say that I  
>> should not render everything in advance.
>>
> Exactly: this is not what he wanted to say.
>
> My question is:
> Who has got good ideas on how to combine mod_tile (for zoom level  
> 18) with pre-rendered images for zoom levels 0 till 17 ?

Just request all the tiles for z 0-17 for the areas that you are most  
likely to need, and if you have the disk space mod_tile will cache  
them. It will easily take up half a GigaByte!

Shaun

>
> ~Ceriel
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