[OSM-talk] Temporary Items, overlays, changes

[Dave Stubbs]

2009/1/8 Thomas Wood <grand.edgemaster at gmail.com>:
> 2009/1/8 Hendrik T. Voelker <hvoelker at nutrimatic.de>:
>> Hendrik T. Voelker wrote:
>>> So we have to come up with a way to contain alternating versions with time or
>>> other kind of restrictions. This would also allow construction sites to be mapped.
>>
>> ---8<---
>>
>> <timecapsule>
>>
>>   <frame from="1.1.2009" till="5.1.2009">
>>     <node ... />
>>     <way ... />
>>     <relation ... />
>>   </frame>
>>
>>   <frame>
>>     <!-- default without time frame -->
>>   </frame>
>>
>> </timecapsule>
>>
>> ---8<---
>>
>> from and till might need some additional possibilities to describe dates, like
>> "First Saturday in March" or "every two years from 1.3. till 9.3." ...
>>
>> Cheers
>>
>> Hendrik
>>
>
> Surely it's possible within the current data model without resorting
> to further complexity. Relations should be able to handle them fairly
> well...
>

So long as you rename the tags used on ways so as not to confuse
anybody not expecting it.
And as long as you don't try to have too many objects per relation.


Dave