Talk:Geography Markup Language

message: @Jlavezzo - EPSG CRS 4326 uses CS 6422 which clearly states 
"Ellipsoidal 2D CS. Axes: latitude, longitude. Orientations: north, east.  UoM: degree"
dr_shorthair (talk) 08:30, 3 June 2011 (UTC)
thread_title:  Axis order 

message: I'm suggesting that these should be merged into this article as they are currently stubs that seem to only be relavent to this article (they are only linked from here).  If these stub articles gain some real content here, they can always be moved back out. – Doug Bell talk•contrib 22:37, 17 March 2006 (UTC)
thread_title:  Mergefrom [[Cgml]] and [[GML Application Schemas]] 

message: The srsDimension attribute is used incosistently in the samples. Its first usage is:
  <gml:Point gml:id="p21" srsName="urn:ogc:def:crs:EPSG:6.6:4326">
     <gml:pos dimension="2">45.67 88.56</gml:pos>
  </gml:Point>
where dimension is an attribute of the gml:pos element; and then in the sample for the Point Profile, we see:
  <position>
    <gml:Point srsDimension="2" srsName="urn:ogc:def:crs:EPSG:6.6:4326"> 
      <gml:pos>49.40 -123.26</gml:pos>
    </gml:Point>
  </position>
where srsDimension is an attribute of the gml:Point element. I believe this is the correct one.
Julio —The preceding unsigned comment was added by 198.102.62.250 (talk) 21:28, 5 February 2007 (UTC)
thread_title:  Incosistent usage of the srsDimension attribute  

message: Untrue to suggest that GeoRSS is restricted to a single coordinate system.  True that GeoRSS will default to WGS-84 if no SRS is supplied, but it can definitely support other coordinate reference systems when they are supplied - in fact, GeoRSS supports GML in addition to W3C Geo tags and Simple lat/long tags.  DruidSmith (talk) 06:18, 23 December 2007 (UTC)
thread_title:  CRS in GeoRSS 

message: I would like to see the examples where the Longitude is greater than +/-90 so that people can quick reference the page to get the lat/lon order correct.  —Preceding unsigned comment added by Mrdvt92 (talk • contribs) 22:53, 19 December 2008 (UTC)
thread_title:  Examples Latitude vs. Longitude 

message: Do we really need the name of every committe member? This is hardly of interest to anyone except themselves. Geira (talk) 11:22, 14 January 2009 (UTC)
thread_title:  History 

message: In the example 'Features using geometries' one property of the <abc:Building gml:id="SearsTower"> feature is:
    <app:extent>
        <gml:Polygon>
            <gml:exterior>
                <gml:LinearRing>
                    <gml:coordinates>100,200</gml:coordinates>
                </gml:LinearRing>
            </gml:exterior>
        </gml:Polygon>
    </app:extent>
I trying to learn, so my understanding of the concepts may not be accurate.  Wouldn't the geometry object <gml:Polygon> require that it consist of at least four coordinate pairs (at least a triangle) in the gml element <gml:coordinates></gml:coordinates> with the beginning and ending coordinate pair being identical to 'close' or complete the polygon?
For example:     <gml:coordinates>0,0 100,0 100,100 0,100 0,0</gml:coordinates>
It seems as written that the extent of the feature building is a single point.
Thanks All,
Ted S  —Preceding unsigned comment added by OS Geo Fan (talk • contribs) 15:10, 5 October 2009 (UTC)
thread_title: Features using geometries Example

message: The argument of introducing gml:point because it allows XML DOM access falls short. gml:point does not give separate DOM access to each coordinate since coordinates are still stored in a single string. --Bmaisonny (talk) 17:05, 9 November 2009 (UTC)
thread_title:  Coordinates 

message: in the general GML model, arbitrary nesting of features and feature properties is not permitted
Is that 'not' supposed to be there?  If so, then the remark doesn't add anything at all.  —Preceding unsigned comment added by Streapadair (talk • contribs) 15:35, 23 May 2010 (UTC)
thread_title:  Simple Features Profile 

message: Seeing as GML is an ISO Standard, I don't see any benefit from having two separate articles about the same format, even if there are subtle differences in pre-ISO to post. +mt 19:07, 21 March 2011 (UTC)
replies: text: I agree too, and I've performed the merge. Tijfo098 (talk) 18:28, 17 November 2012 (UTC)
thread_title:  Merge from [[ISO 19136]] 

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