[Imports] Fwd: Re: Spanish cadastre

[Jaime Crespo]

There were three problems with the corine imports: accuracy, age (and
"updatibility") and editor support.

I do not see why those cannot be solved in this case.

Accuracy is (in my opinion) not and issue: the objects directly converted
have an almost centimeter precision. Certainly, no map is 100% correct
ever. And that is why localers have to check and merge the changes
manually. There is no easy way in this case.

Second:

Source data is updated every 3 or 4 months, I do not recall. Oficial ref
tags can be used to check this fact. If the object it is deleted or
converted, it is the mappers fault and responsability of all osmers to keep
the shape and tags updated, as with any other regular element.

Also please do not say that these imports will become orphan and forgotten
soon. Converting a small town takes over 4 hours of computing on a good PC.
There are 8000 municipalities in Spain. And that is only for the automatic
process. I one decides to use this source data will be because (s)he is
interested in that place. You have to be quite technology-savy to use the
conversion tool.

Third, editor problems. Ok, this may be an actual problem. Although I think
it not an issue of this particular set of data, but has to do with the way
relations work.
However, instead of saying: "please do not upload. Full stop.", I think we
can discuss and agree to see how and what can be uploaded and maybe even
start a parallel project to improve our current tools. We are not in a
hurry.

Client-side layers I think it is something that really has sense, for
example.

So, I would say that it is not a question of quantity over community or
quality. For me community is a mean to reach the real objective: free and
open data. And as they just said at the Spanish list, they are not to be in
conflict.
--
Jaime Crespo
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