Hi, > De : "Michael Kugelmann" > On 19.09.2012 23:45, Vincent de Chateau-Thierry wrote: > > The only criteria for removing French Cadastre data will be the value > > of the source tag. > That's a bad idea: if someone for what ever reason just decides to > remove (or change) the "source=cadastre" tag of a object (and don't > change anything else) you can't identify the object any more. > Or to be more precise: you need to use a lot of effort and check all > versions of an object (this means: the whole planet) whether it once had > the "source=cadastre" tag. But thats a lot of work to do. Much (!) more > easy to identify all the object is if you can take all object created by > a special account => just check the changesets. > Checking all versions of all objects is the thing we just went through > with a lot of pain and effort: creating and using the redaction bot. And > we are all aware that this was necessary but not nice and a lot of > "unporoductive effort". So let's learn from the past and avoid possible > issues in the future that can be done easily with very small aditional > effort in the presence. >
That means that a separate ccount is a way of identifying contributions depending on their source. I can understand that such way is a good practice when a given source is strongly linked to a way of dealing with it : massive upload or single edit. But the problem with french cadastre remains the same since it is both used in massive _and_ single object uploads. In my previous mail I pointed out a way : http://www.openstreetmap.org/browse/way/181674272 This way has one of its nodes which stand for a amenity=cafe : http://www.openstreetmap.org/browse/node/1920879534 Both geometry of the way and tags for the node come from the same changeset, since I added them at the same time. But node information does not come from the Cadastre, it is my own survey. With the separate-account-by-source suggestion, I would have : 1- started JOSM with my account-for-import (which does not exist yet :-) ) 2- drawn the way, tagged with "building=yes" and source="Cadastre" 3- uploaded it 4- exit from JOSM and restart with my regular account 5- edited the node tags 6- uploaded Wow.... I don't think such process is "productive". It is artificialy time consuming with basically no gain at all. vincent Une messagerie gratuite, garantie à vie et des services en plus, ça vous tente ? Je crée ma boîte mail www.laposte.net _______________________________________________ talk mailing list talk@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk
