[Talk-ca] Why import all of Geobase/Canvec?
I've been following the conversations with interest, and find myself wondering what is the value for OSM in ingesting wholesale the public geospatial offerings of Canadian federal and regional governments? These are big organisations with full time staff and big budgets dedicated to processing and updating the data. Why should/would a handful of volunteers expend the effort in digesting this volume of data? Wouldn't it be simpler to utilise WMS services? The usecase for ingesting roads and trails is fairly clear, people are actually adding attributes and adding and adjusting geometry to more closely match the reality they see. I don't see the same potential value adding activity for natural features like hydrology, contours, satellite imagery, etc. Am I missing something? best regards, -- matt wilkie Geographic Information, Information Management and Technology, Yukon Department of Environment 10 Burns Road * Whitehorse, Yukon * Y1A 4Y9 867-667-8133 Tel * 867-393-7003 Fax http://environmentyukon.gov.yk.ca/geomatics/ ___ Talk-ca mailing list Talk-ca@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk-ca
Re: [Talk-ca] Why import all of Geobase/Canvec?
On 12/11/08, Matt Wilkie matt.wil...@gov.yk.ca wrote: I've been following the conversations with interest, and find myself wondering what is the value for OSM in ingesting wholesale the public geospatial offerings of Canadian federal and regional governments? These are big organisations with full time staff and big budgets dedicated to processing and updating the data. Why should/would a handful of volunteers expend the effort in digesting this volume of data? Wouldn't it be simpler to utilise WMS services? Simpler yes, better maybe not. The usecase for ingesting roads and trails is fairly clear, people are actually adding attributes and adding and adjusting geometry to more closely match the reality they see. I don't see the same potential value adding activity for natural features like hydrology, contours, satellite imagery, etc. Am I missing something? Elevation contours can be of real interest, I gather some bicycle groups in Germany have used elevation data in OSM for things like planning tour routes (not only do bicycle rides want limits on distance/day they also want limits on sudden changes in elevation (no steep hills)). As for hydrology, by attitude would be, if it isn't much trouble to add, why not? best regards, -- matt wilkie Geographic Information, Information Management and Technology, Yukon Department of Environment 10 Burns Road * Whitehorse, Yukon * Y1A 4Y9 867-667-8133 Tel * 867-393-7003 Fax http://environmentyukon.gov.yk.ca/geomatics/ ___ Talk-ca mailing list Talk-ca@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk-ca
Re: [Talk-ca] Why import all of Geobase/Canvec?
Elevation contours can be of real interest, I gather some bicycle groups in Germany have used elevation data in OSM for things like planning tour routes (not only do bicycle rides want limits on distance/day they also want limits on sudden changes in elevation (no steep hills)). It's easier to do that kind of calculation from a digital elevation model than contours. As for hydrology, by attitude would be, if it isn't much trouble to add, why not? The theme of my questions is based on the premise that it likely will be a lot of trouble. :) cheers, matt wilkie Geographic Information, Information Management and Technology, Yukon Department of Environment 10 Burns Road * Whitehorse, Yukon * Y1A 4Y9 867-667-8133 Tel * 867-393-7003 Fax http://environmentyukon.gov.yk.ca/geomatics/ ___ Talk-ca mailing list Talk-ca@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk-ca
Re: [Talk-ca] Why import all of Geobase/Canvec?
On Thu, Dec 11, 2008 at 11:31 AM, Colin McGregor colin.mc...@gmail.com wrote: On 12/11/08, Matt Wilkie matt.wil...@gov.yk.ca wrote: I've been following the conversations with interest, and find myself wondering what is the value for OSM in ingesting wholesale the public geospatial offerings of Canadian federal and regional governments? These are big organisations with full time staff and big budgets dedicated to processing and updating the data. Why should/would a handful of volunteers expend the effort in digesting this volume of data? Wouldn't it be simpler to utilise WMS services? Simpler yes, better maybe not. The usecase for ingesting roads and trails is fairly clear, people are actually adding attributes and adding and adjusting geometry to more closely match the reality they see. I don't see the same potential value adding activity for natural features like hydrology, contours, satellite imagery, etc. Am I missing something? Elevation contours can be of real interest, I gather some bicycle groups in Germany have used elevation data in OSM for things like planning tour routes (not only do bicycle rides want limits on distance/day they also want limits on sudden changes in elevation (no steep hills)). As for hydrology, by attitude would be, if it isn't much trouble to add, why not? I am very much in favour of importing all of Geobase, but only when the db can let users do selective pulls. So for right now, I think we should import: -the transportation network -the hydrology network exluding watershed boundaries -political boundaries -park/landuse boundaries -coastlines -water features We should not upload -elevation data -anything else For reference, opencyclemap and all the various elevation driven mapping stuffs are adding in the elevation data after the pull from OSM. Corey7 ___ Talk-ca mailing list Talk-ca@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk-ca
Re: [Talk-ca] Why import all of Geobase/Canvec?
I like that choice of features that should be imported into OSM. They're standard for pretty much any road map that people use, besides the hydrology network, but web maps like Google have rivers creeks without making it look messy so we could get away with it. The water features will especially be useful in the Canadian Shield where there are thousands and thousands of lakes, only low res imagery available, and not many people to map the areas (I'm sure it'll also be an excellent complement for hiking/off road trails too). -Kevin Farrugia (Kevo) On Thu, Dec 11, 2008 at 11:36 PM, Corey Burger corey.bur...@gmail.comwrote: I am very much in favour of importing all of Geobase, but only when the db can let users do selective pulls. So for right now, I think we should import: -the transportation network -the hydrology network exluding watershed boundaries -political boundaries -park/landuse boundaries -coastlines -water features We should not upload -elevation data -anything else For reference, opencyclemap and all the various elevation driven mapping stuffs are adding in the elevation data after the pull from OSM. Corey7 ___ Talk-ca mailing list Talk-ca@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk-ca ___ Talk-ca mailing list Talk-ca@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk-ca
