El Jueves, 23 de Abril de 2009, SteveC escribió: > Basically, what do we feel substantial means when someone takes some > part of the data? How much is 'substantial'? [...] > We're not looking for a legal opinion [...] rather, what do we think it > means?
My personal point of view is: If the extraction needs an automated tool, then it is substantial. If the data can be extracted without automated tools, in a reasonable amount of time (~5-15 minutes), then it is not substantial. Example: running osmosis to extract data intersecting a polygon (e.g. a country or province) is substantial. Filtering out all amenity=pub in a bbox is substantial if you do it using software for just that (e.g. all pubs in a country). Converting a super-relation into a big linestring by cross-referencing 100s of way and node IDs is substantial. On the other hand, picking up a tag value for a given node (e.g. the name of the pub with id# 1234567) is not substantial: I don't need any special tools for that (just peer through the XML). Filtering out all amenity=pub in a small area is not substantial (e.g. all pubs in a 100m x 100m bbox - again, just peer through the XML with *any* text editor and Ctrl+F) Moreover, I don't think the API is a specific tool for anything - it's a technical artifact needed. I don't think that any single way, node, relation, changeset or bbox is substantial. I don't think that the size of the bbox matters - even the planet is a mere technical artifact. I think that the extraction is done the moment you apply a *specific* and/or *specialized* software tool to a bbox or to a planet dump. -- ---------------------------------- Iván Sánchez Ortega <[email protected]> You will remember, Watson, how the dreadful business of the Abernetty family was first brought to my notice by the depth which the parsley had sunk into the butter upon a hot day. -- Sherlock Holmes
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