Re: [whatwg] Geographic hyperlinks
Dated June 2010... It appears someone raced me! I look forward to seeing this implemented. Only... One weakness in the existing document that might be addressed as an upgrade to this specification at a later date: there appears to be scant reference to methods of specifying date and time as part of GEO hyperlinks. For some GIS applications, this might be important. (I grant that this could be a nightmare to implement on geological time-scales where it's hard to decide upon a fixed longitudinal reference point, but on shorter time-scales of hundreds or even thousands of years, this feature might be a boon to the publication of historical maps and data.) What say you? How might I suggest this to the relevant people, if not here? -- Matthew Slyman, M.A. Computer Science (Camb) Quoting Tantek Çelik tan...@cs.stanford.edu: See RFC 5870[1] for a proposed standard geo URI scheme for geo: hyperlinks. - Tantek [1] http://tools.ietf.org/html/rfc5870 On Mon, Oct 10, 2011 at 10:27, Matthew Slyman wha...@aaabit.com wrote: http://forums.whatwg.org/bb3/viewtopic.php?f=3t=4725 [Topic has been on forum for 2 weeks without reply. Now posting to mailing list.] -- Hyperlinks for geographic coordinates are a mess. Designers of web applications are being forced to design their own solutions to make geographic links more user-friendly... http://en.wikipedia.org/wiki/Wikipedia:WikiProject_Geographical_coordinates http://toolserver.org/~geohack/geohack.php?pagename=Londonparams=51_30_26_N_0_7_39_W_type:city(7825200)_region:GB There's a relatively simple solution to all of this that could easily be upgraded over time. We already have mailto:; hyperlinks, for example, that accept certain fields and map those to certain parameters within a user-definable (or system-specific) mail client application. The same could be done for geographic data. The user might install certain geographic information systems on their viewing device, specify their favourite for geo: links, and then when they follow a hyperlink with geographic content, any relevant information fields present might be transferred over to the geographic information system (GIS) as coordinates. I suggest for the HTML standards people to simply talk to Wikipedia or Google and copy their system, as a starting-point for discussion at least. Maybe their format could be tidied up slightly, but generally I think they've done a good job and that their work should be adopted as a standard, so that you don't end up seeing pages with dozens of hyperlinks (one for each GIS) as we do on Wikipedia. -- Matthew Slyman, M.A. Computer Science (Camb) -- http://tantek.com/ - I made an HTML5 tutorial! http://tantek.com/html5
[whatwg] Geographic hyperlinks
http://forums.whatwg.org/bb3/viewtopic.php?f=3t=4725 [Topic has been on forum for 2 weeks without reply. Now posting to mailing list.] -- Hyperlinks for geographic coordinates are a mess. Designers of web applications are being forced to design their own solutions to make geographic links more user-friendly... http://en.wikipedia.org/wiki/Wikipedia:WikiProject_Geographical_coordinates http://toolserver.org/~geohack/geohack.php?pagename=Londonparams=51_30_26_N_0_7_39_W_type:city(7825200)_region:GB There's a relatively simple solution to all of this that could easily be upgraded over time. We already have mailto:; hyperlinks, for example, that accept certain fields and map those to certain parameters within a user-definable (or system-specific) mail client application. The same could be done for geographic data. The user might install certain geographic information systems on their viewing device, specify their favourite for geo: links, and then when they follow a hyperlink with geographic content, any relevant information fields present might be transferred over to the geographic information system (GIS) as coordinates. I suggest for the HTML standards people to simply talk to Wikipedia or Google and copy their system, as a starting-point for discussion at least. Maybe their format could be tidied up slightly, but generally I think they've done a good job and that their work should be adopted as a standard, so that you don't end up seeing pages with dozens of hyperlinks (one for each GIS) as we do on Wikipedia. -- Matthew Slyman, M.A. Computer Science (Camb)
Re: [whatwg] Geographic hyperlinks
See RFC 5870[1] for a proposed standard geo URI scheme for geo: hyperlinks. - Tantek [1] http://tools.ietf.org/html/rfc5870 On Mon, Oct 10, 2011 at 10:27, Matthew Slyman wha...@aaabit.com wrote: http://forums.whatwg.org/bb3/viewtopic.php?f=3t=4725 [Topic has been on forum for 2 weeks without reply. Now posting to mailing list.] -- Hyperlinks for geographic coordinates are a mess. Designers of web applications are being forced to design their own solutions to make geographic links more user-friendly... http://en.wikipedia.org/wiki/Wikipedia:WikiProject_Geographical_coordinates http://toolserver.org/~geohack/geohack.php?pagename=Londonparams=51_30_26_N_0_7_39_W_type:city(7825200)_region:GB There's a relatively simple solution to all of this that could easily be upgraded over time. We already have mailto:; hyperlinks, for example, that accept certain fields and map those to certain parameters within a user-definable (or system-specific) mail client application. The same could be done for geographic data. The user might install certain geographic information systems on their viewing device, specify their favourite for geo: links, and then when they follow a hyperlink with geographic content, any relevant information fields present might be transferred over to the geographic information system (GIS) as coordinates. I suggest for the HTML standards people to simply talk to Wikipedia or Google and copy their system, as a starting-point for discussion at least. Maybe their format could be tidied up slightly, but generally I think they've done a good job and that their work should be adopted as a standard, so that you don't end up seeing pages with dozens of hyperlinks (one for each GIS) as we do on Wikipedia. -- Matthew Slyman, M.A. Computer Science (Camb) -- http://tantek.com/ - I made an HTML5 tutorial! http://tantek.com/html5
Re: [whatwg] Geographic hyperlinks
Bjoern Hoehrmann: * Christoph Päper wrote: geo:13.4125,103.8667@mars You can specify the coordinate reference system with the crs paramameter Yes, but I don’t think it’s a good design to select the astronomic body with the same property that you use to switch between different CRSs for a given spheroid. Nevermind.
Re: [whatwg] Geographic hyperlinks
You can define the crs (srsName) for a geo: link which effectively allows you to do that. See the registry in the spec. roBman On Mon, 2011-10-10 at 21:26 +0200, Christoph Päper wrote: Tantek Çelik: See RFC 5870[1] for a proposed standard geo URI scheme for geo: hyperlinks. I wonder whether this scheme, someday, will be extended to include a domain part, e.g. geo:13.4125,103.8667@mars, or whether we’ll rather get a ‘astro:’ scheme.
