[OSM-talk-be] CRAB Import Tool

[Ben Abelshausen]

Oeps, sorry for the empty mail! :-)

I think we can use CRAB as a source but we will never be able to update
automatically but even without an ID we should be able to detect changes
and if not then most likely there will be some error in OSM or CRAB (if
streetnames do not match or something).

I even think there is no 'one-id-per-address' in the CRAB datamodel. I will
ask someone on Wednesday when I will be back at AGIV but I think there are
only linked buildings/percelen and those tend to change too.

Met vriendelijke groeten,
Best regards,

Ben Abelshausen

On Mon, Oct 21, 2013 at 9:34 PM, Ben Abelshausen
<ben.abelshausen at gmail.com>wrote:

>
>
> Met vriendelijke groeten,
> Best regards,
>
> Ben Abelshausen
>
>
>
> On Mon, Oct 21, 2013 at 9:26 PM, Glenn Plas <glenn at byte-consult.be> wrote:
>
>> On 2013-10-21 20:57, Kurt Roeckx wrote:
>>
>>> On Mon, Oct 21, 2013 at 08:05:50PM +0200, Ben Abelshausen wrote:
>>>
>>>> I'm also wondering if we want to add some kind of reference to
>>>>> the ID from CRAB.
>>>>>
>>>> I'm not in favour of keeping external id's in OSM, the address itself
>>>> should be the id and you cannot rely on it staying on the map because
>>>> anyone can remove it.
>>>>
>>> I was just thinking about how to keep in sync with their database,
>>> and to try and find out which points are mapped and which are not.
>>>
>>> I'm also considering trying to do a full import and merging
>>> existing nodes / houses with their data and things like that.  I
>>> would actually like to mostly automate importing updates comming
>>> from them.  I think that at some point we will at least need a way
>>> to see see the difference between the 2, and having a direct
>>> relation betweem them could make things easier.
>>>
>>
>> Yup, you'll need a foreign key if you want to manage that automatically.
>>  I aggree.  If not you could endup merging the same stuff all over again.
>>  Or worse, delete old nodes and create new ones, enlarging the changesets.
>>
>> But I would caution for doing an automagical full import and merge unless
>> you're doing only for the referenced stuff, but new data and merged I would
>> stll want to review it.   I've hardly ever had this sort of database
>> migration work at the first attempt....
>>
>> Now lets hope someone at CRAB isn't planning on doing the same but in the
>> other direction ;-) , I keep wondering what kind of feedback loop that
>> would create....
>>
>> Glenn
>>
>>
>>
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