Paul, I understand Bryan's point of view. In a former life I had to ask map users if they were preferring map consistency with old data or map inconsistency with an updated road network. They mostly preferred the last option If we go on your proposal, one could upload an entire map sheet except where there is some inconsistencies. These inconsistencies will usually be in sub-urban area. It is easy to clean the data if good Bing imagery is available but what if not? The rural area will be filled with data and sub-urban area will be kept blank? I'm not sure I would like it...
What other contributors would like to see? -------- Paul, Je comprends le point de vue de Bryan. Dans une autre vie, J'ai eu à demander à des usagers s'il préféraient une carte consistante mais périmée ou inconsistante mais avec un réseau routier à jour. Ils ont préférés la dernière option. Si nous allons sur ta proposition, on pourraient charger une carte complète sauf là ou il y a des inconsistances. Ces inconsistances seront généralement en banlieue. C'est facile de corriger les données si les images Bing sont de qualité mais que faire si elles ne le sont pas? Les secteurs ruraux seront chargés (données complètes) mais les banlieues demeureront vides? Je ne suis pas certain d'aimer ça... Qu'est-ce que les autres contributeurs aimeraient voir? Regards, Daniel -----Original Message----- From: Paul Norman [mailto:[email protected]] Sent: November-10-12 19:28 To: [email protected] Subject: Re: [Talk-ca] Internal CanVec conflicts > From: Bryan Crosby [mailto:[email protected]] > Sent: Saturday, November 10, 2012 8:33 AM > To: [email protected] > Subject: Re: [Talk-ca] Internal CanVec conflicts > This will be my first and only response to this. If the Canadian OSM > community feels we need to check every stream, island, oxbow lake, piece > of 'forest', esker, soil type, muskeg, swamp for accuracy, so be it. > Keep in mind that in doing so, 80% of the country will receive no data, > and the community will be down one mapper. If you don't want to engage in a discussion that is of course up to you. You appear to be mixing accuracy with consistency. My message was only about consistency. Accuracy is about if something is right. Consistency is about if something makes sense. Accuracy problems with CanVec are normally limited to old data and the limits of resolution. Consistency problems vary more. Generally they're caused because CanVec is generated from multiple data sets gathered independently without reference to each other. I had many examples locally of water data indicating a stream with more recent data indicating the area had been built over. I've fixed what I've found locally so I don't have any of those examples, but http://www.openstreetmap.org/?lat=45.695&lon=-73.905&zoom=17 is a good example from Quebec of the type of result. You don't need to look at Bing to see that there's something odd there. _______________________________________________ Talk-ca mailing list [email protected] http://lists.openstreetmap.org/listinfo/talk-ca _______________________________________________ Talk-ca mailing list [email protected] http://lists.openstreetmap.org/listinfo/talk-ca
