Bản mẫu:Nhóm địa lý/doc

generates an infobox type list of external links to services that present or display all coordinates listed on certain Wikipedia articles that have multiples of coordinates. The template is also capable of generating all the title coordinates from many articles listed in a single Wikipedia category. The template is intended to be inserted in the External links section of articles, or inside a section with a list or table of features, if appropriate (e.g. see Tame Valley Canal).
The linked services allow the following results:- A link to an OpenStreetMap map with the waypoints plotted onto the map.- Export all coordinates from the Wikipedia page or category in a KML file suitable for use in Google Earth, NASA World Wind and similar applications.- Export mw:Extension:GeoData  coordinates in a GPX file.- Export Microformatted coordinates from the Wikipedia page in a GeoRSS file. (No longer working)- Export place data in an RDF file. (No longer working)

**Usage**
Inline coordinates can be associated with a name using Coord with the name parameter, such as:

However, do not use the name parameter when the coordinates are within a parent template or table which emits a microformat, such as an infobox.
This template is not intended for articles with single sets of coordinates; such coordinates already link indirectly to GeoTemplate.
To use this template, add GeoGroup to the External links section of an article, or, for list articles with no title coordinate, at the top of the article.

**Optional parameters**
article= The name of an article or a category, from which coordinates will be displayed:
2=article=article name
2=article=Category:category name
For a category example, see List of stations in London fare zone 2#List of stations)
articlee= Encoded name of the article. The encoding process here involves changing spaces to underscores ( _ ), everything else is taken care of by the urlencode magic word.
3=articlee=article_name
section= The section parameter arranges most of the links to use only coordinates in the named section of the article.  This is useful to limit the number seen at one time in articles with many coordinates.  For examples, see List of rapids of the Columbia River.in
2=section=section name
A section-specific GeoGroup makes most sense placed within the section to which it refers.  
No matter if the template is set to display coordinates of a faraway section, the GeoGroup box's wording will still assert it will display coordinates of "this section".  Every section-specific GeoGroup box is worded "Map this section's coordinates...", and currently (March 2015) there is no way to change the wording presented.
Note that section export does not currently work for GPX export.
mapframe= Set to yes to show the coordinates in a mapframe map at the top of the box. (Not available if a category is used.)
maplink= Set to yes to show the coordinates in a maplink map, linked from the "Map all coordinates..." or "Map this section's coordinates..." text. (Not available if a category is used.)

**Option for categories**
There is one optional parameter for display of coordinates in categories:
2=level=0,1,2,3,...
level= Category recursion level, where 0 means unlimited

**Cache delay and updating maps**
Currently (as of 18 March 2015) maps displayed using Open Street Map are regenerated with each visit, and no caching is used.  So if an editor adds or changes coordinates in an article, then clicks on the GeoGroup template to "Map all coordinates using OSM", the OSM map displayed will immediately show the changed data.

**Linking**
Wiki-links may be made directly to a page's instance of the template, with the ID GeoGroup., by using , which produces: Example Link Text.
To jump to GeoGroup box location in the current article use:
:, which produces: Jump to map box.
To jump to GeoGroup box location in a different article use:
:
For example,  produces: Mapping of Runcorn listed buildings
If there are multiple usages of GeoGroup template in an article, as in List of rapids of the Columbia River, the target is not well-defined.  For example,  which produces Jump to a map box of Columbia River rapids, could perhaps jump to any one of the GeoGroup templates in that article.

**Expansion**
Other KML aware services may be added, as they become available; as might services converting the coordinates to GPX () or other formats.

**Examples**

**Netherton Tunnel Branch Canal**
Data from Netherton Tunnel Branch Canal article:

**Other examples**
Display the coordinates from a different section than this one (in current article):
*Result: Works as intended, but GeoGroup box displays "this section".
Display the coordinates from a different section than this one (in current article), when that section has no coordinates:
*Result: Works: "sorry, no data to show", but GeoGroup box displays "this section".
Display all the coordinates in a different article:
*Result: Works
Display just the coordinates in one section of a different article:
*Result: Works, but GeoGroup box displays "this section".
Try to display all coordinates in just one section of a different article, by giving a link to that section in the article:
*Result: Fails, as all coordinates in the article are displayed, not just the ones from the intended section. (So use "|section=" option.)
Display all coordinates in a category:
*Result: Works
Try to display all coordinates in a large parent category and all of its subcategories (using infinite recursion):
*Result: Works
Display all coordinates in the large parent category to one level of subcategories (using recursion level 1):
*Result: Works, properly showing no data.
Display coordinates in the large parent category to two levels of subcategories (using recursion level 2):
*Result: Works, appears same as with Level=0, as there are just two levels of subcategories.
Display all coordinates in another large category and all its subcategories:
Note one can use "GeoGroupTemplate" or "GeoGroup" interchangeably.

**Wording displayed**
There is currently no option to change the wording that is shown in the GeoGroup box displayed in an article. 
For example, when providing means for a reader to map locations within :Category:Rail transport stations in London fare zone 2, an editor might prefer for the Geogroup box to display "Map the Zone 2 stations using OSM" in the article, instead of "Map all coordinates in 'Category:Rail transport stations in London fare zone 2' using OSM".  However, there is no way currently to change the wording presented.
Also when "|section=" option is used, there is no way to change displayed wording from "Map this section's coordinates using ...".

**Bookmarklet to add GeoGroup to categories**
To add the template to categories, you may want to use the bookmarklet below. Sample edit: 
javascript:with(document.forms0){void(wpSummary.value+='+GeoGroup%20(see%20also%20WP:GEO');void(wpTextbox1.value=+wpTextbox1.value);void(wpSave.click())}

**See also**
Attached KML
*Maplink