Re: [OSM-talk] source=Google

2013-05-24 Thread Steve Bennett
On Tue, May 21, 2013 at 9:26 PM, Martin Koppenhoefer dieterdre...@gmail.com wrote: What do you propose to do with source tags found on an object when you modify this object based on a different source? Speaking for myself, I either replace it (if I'm replacing virtually all the geometry) or

Re: [OSM-talk] source=Google

2013-05-21 Thread Dave F.
On 18/05/2013 16:56, Martin Koppenhoefer wrote: Point is it doesn't really belong in the data, because it is metadata. This is a false argument. There's nothing wrong with metadata in the database if it's *useful*. When I go for a walk I survey. I use a gps. When mapping the data I use

Re: [OSM-talk] source=Google

2013-05-21 Thread Martin Koppenhoefer
2013/5/21 Dave F. dave...@madasafish.com On 18/05/2013 16:56, Martin Koppenhoefer wrote: Point is it doesn't really belong in the data, because it is metadata. This is a false argument. There's nothing wrong with metadata in the database if it's *useful*. When I go for a walk I survey. I

Re: [OSM-talk] source=Google

2013-05-21 Thread Richard Fairhurst
Martin Koppenhoefer wrote: But in the end I think this whole source thing is completely overestimated. Yup. What do you propose to do with source tags found on an object when you modify this object based on a different source? OSM has full object history. :) cheers Richard -- View

Re: [OSM-talk] source=Google

2013-05-21 Thread Marc Gemis
On Tue, May 21, 2013 at 1:26 PM, Martin Koppenhoefer dieterdre...@gmail.com wrote: But in the end I think this whole source thing is completely overestimated. In the end the following mappers will compare what is on the map with what they know or believe to be there in reality, and in case

Re: [OSM-talk] source=Google

2013-05-21 Thread Henning Scholland
Hi, maybe a little bit. For remote-mappers it's a good hint, if objects doesn't fit to imagery. Henning Am 21.05.2013 13:26, schrieb Martin Koppenhoefer: But in the end I think this whole source thing is completely overestimated. ___ talk

Re: [OSM-talk] source=Google

2013-05-21 Thread Peter Wendorff
Am 21.05.2013 13:30, schrieb Richard Fairhurst: Martin Koppenhoefer wrote: What do you propose to do with source tags found on an object when you modify this object based on a different source? OSM has full object history. :) ...which is an argument that the source may fit well on the

Re: [OSM-talk] source=Google

2013-05-18 Thread pec...@gmail.com
http://wiki.openstreetmap.org/wiki/WikiProject_Haiti/Imagery_and_data_sources#Google_Imagery This is one explanation. Also source=Google really says nothing that source is Google Maps. P. 2013/5/18 malenki o...@malenki.ch There are abot 33.000 objects in OSM which have google in the one way

Re: [OSM-talk] source=Google

2013-05-18 Thread Martin Koppenhoefer
2013/5/18 malenki o...@malenki.ch Any thoughts about that? don't put source tags on objects but on the changeset? If you are interested what the intended meaning is, you should ask the contributors who added this, I guess different mappers used this for different things, google is quite

Re: [OSM-talk] source=Google

2013-05-18 Thread Chris Hill
On 18/05/13 13:31, malenki wrote: There are abot 33.000 objects in OSM which have google in the one way or another in their source tag: http://malenki.ch/d/2013-05-18_142122_scr_source_google.png Just type google in the value-field: http://taginfo.openstreetmap.org/keys/source#values Any

Re: [OSM-talk] source=Google

2013-05-18 Thread malenki
Martin Koppenhoefer wrote: 2013/5/18 malenki o...@malenki.ch Any thoughts about that? don't put source tags on objects but on the changeset? I see no difference in using source= on objects or changesets except the visibility for the source ___

Re: [OSM-talk] source=Google

2013-05-18 Thread malenki
pec...@gmail.com wrote: http://wiki.openstreetmap.org/wiki/WikiProject_Haiti/Imagery_and_data_sources#Google_Imagery This is one explanation. As it seems for the value parts with the matching dates on them. Also source=Google really says nothing that source is Google Maps. hopefully

Re: [OSM-talk] source=Google

2013-05-18 Thread Dave F.
On 18/05/2013 13:31, malenki wrote: There are abot 33.000 objects in OSM which have google in the one way or another in their source tag: http://malenki.ch/d/2013-05-18_142122_scr_source_google.png Just type google in the value-field: http://taginfo.openstreetmap.org/keys/source#values Any

Re: [OSM-talk] source=Google

2013-05-18 Thread malenki
Dave F. wrote: I use Google daily to map in OSM. I search their database for names websites of schools, restaurants etc. Nothing wrong in that. I don't tag the source as google, but others might. Since Google links to websites of the schools, restaurants etc I'd consider it wrong to say google

Re: [OSM-talk] source=Google

2013-05-18 Thread Yohan Boniface
On 05/18/2013 03:55 PM, malenki wrote: Dave F. wrote: IMO Source should be on the object, not on the changeset. +1 (except if there is one changeset for one object (; ) This is not my opinion. Let's take a simple example: a school. Some first user maps it from imagery, and so just draws

Re: [OSM-talk] source=Google

2013-05-18 Thread malenki
Yohan Boniface wrote: On 05/18/2013 03:55 PM, malenki wrote: Dave F. wrote: IMO Source should be on the object, not on the changeset. +1 (except if there is one changeset for one object (; ) This is not my opinion. Let's take a simple example: a school. Some first user maps it from imagery,

Re: [OSM-talk] source=Google

2013-05-18 Thread Martin Koppenhoefer
2013/5/18 malenki o...@malenki.ch Martin Koppenhoefer wrote: 2013/5/18 malenki o...@malenki.ch Any thoughts about that? don't put source tags on objects but on the changeset? I see no difference in using source= on objects or changesets except the visibility for the source Point

Re: [OSM-talk] source=Google

2013-05-18 Thread Cartinus
Anybody else who noticed we already had this discussion last year ;) http://lists.openstreetmap.org/pipermail/talk/2012-November/065034.html On 05/18/2013 02:31 PM, malenki wrote: There are abot 33.000 objects in OSM which have google in the one way or another in their source tag:

Re: [OSM-talk] source=Google

2013-05-18 Thread Christoph Hormann
On Saturday 18 May 2013, Yohan Boniface wrote: On 05/18/2013 03:55 PM, malenki wrote: Dave F. wrote: IMO Source should be on the object, not on the changeset. +1 (except if there is one changeset for one object (; ) This is not my opinion. Let's take a simple example: a school. [...]

Re: [OSM-talk] source=Google

2013-05-18 Thread Toby Murray
I will point out here that iD has invented a new changeset tag which I find useful. It automatically records what imagery layers you use while editing and throws them into an imagery_used=* tag. This removes the need for users to manually tag source information if they are just tracing imagery. I

Re: [OSM-talk] source=Google

2013-05-18 Thread Martin Koppenhoefer
2013/5/18 Christoph Hormann chris_horm...@gmx.de - imagine mapping something based on satellite images and you need to use different images for various parts due to clouds or even the common case of supplementing survey data with Bing images. yes, this is very common, at least in regions

Re: [OSM-talk] source=Google

2013-05-18 Thread Christoph Hormann
On Saturday 18 May 2013, Martin Koppenhoefer wrote: [...] Usually with aerial imagery from webmaps you also don't see from when they are, at least almost nobody stores this information in the source tag, but it is much more relevant (IMHO) to know traced from aerial imagery from 2007 than