View source for Template:Population density WD/doc

{{Documentation subpage}}
Calculcates and shows the population density of a place, based on area and populaction numbers retrieved from [[Bharatpedia:Bharatdata|Bharatdata]]. 
{{template shortcut|pop dens WD|popdens WD}}

== Usage ==
{{tlp|Population density WD}}, without arguments, will show the population density of the current article subject, default in inhabitants per km<sup>2</sup>.

{{tlp|Population density WD|<page title>}}, will show the population density of the Bharatpedia article ''page title'' stated in the first unnamed parameter. The template does ''not'' use the Bharatdata label. It also works if the article is moved, since it follows the redirect.

The second unnamed parameter states the unit: {{tlp|Population density WD|<page title>|<unit>}}, for example PD/km2 (default), PD/sqmi, PD/acre, PD/scyd or PD/sqfoot.

The template is mainly intended for tables showing the population density of several geographical regions. A clickable pen is shown next to the value to users that have logged in are [[BP:autoconfirmed|auto-confirmed]]. The pen is helpful in finding out at which Bharatdata page each value in the table can be edited, and where the citations and edit history of each data value can be found. The pen is hidden to other users to reduce the risk of vandalism. 

A purpose of this template is to avoid advanced code in Bharatpedia articles, by using a comprehensible property name and article title instead of pid and qid codes. However, the template may also be called with a parameter named ''qid''. 

===Current article===
Example:
 <code><nowiki>{{Population density WD}} inhabitants per km<sup>2</sup></nowiki></code> 
shows the population per km<sup>2</sup> of the current article subject.

===Articles sharing the same Bharatdata label===
The template does ''not'' use the Bharatdata label. These two places have the same label ''São Paulo'':
 <code><nowiki>{{Population density WD|São Paulo}} /km<sup>2</sup></nowiki></code>
gives the population density of [[São Paulo]]: {{Population density WD|São Paulo}} /km<sup>2</sup>.

 <code><nowiki>{{Population density WD|São Paulo (state)}}</nowiki></code>
gives the population density of [[São Paulo (state)]]: {{Population density WD|São Paulo (state)}}.

===Redirect===
The redirect page [[Sao Paulo, Brazil]] does not have Bharatdata item of its own. Then the template shows data for the redirect destination [[São Paulo]]:
 <code><nowiki>{{Population density WD|Sao Paulo, Brazil}}</nowiki></code>
gives: {{Population density WD|Sao Paulo, Brazil}}.

===Qid code===
Another option is to use the qid code of {{Q|q174}}. This however makes the wikicode less comprehensible, but is useful if the place has a Bharatdata item but no Bharatpedia article:
 <code><nowiki>{{Population density WD|qid=q174}}</nowiki></code>
which gives: {{Population density WD|qid=q174}}.

===Other units===
Population density units that are accepted by {{template|convert}} can be used in the second unnamed parameter, for example
 <code><nowiki>{{Population density WD|São Paulo|PD/acre}} acres</nowiki></code>
which gives: {{Population density WD|São Paulo|PD/acre}} acres.
 <code><nowiki>{{Population density WD|São Paulo|PD/sqmi}} per square mile</nowiki></code>
gives: {{Population density WD|São Paulo|PD/sqmi}}  per square mile.
 <code><nowiki>{{Population density WD|São Paulo|/sqyd}} per square yard</nowiki></code>
gives: {{Population density WD|São Paulo|/sqyd}} per square yard.
 <code><nowiki>{{Population density WD|São Paulo|PD/km2}} per km<sup>2</sup></nowiki></code>
gives: {{Population density WD|São Paulo|PD/km2}} per km<sup>2</sup> (default unit).

==See also==
* [https://en.bharatpedia.org/w/index.php?title=List_of_Brazilian_states_by_population_density&oldid=1075098058 List of Brazilian states by population density] (Example article)
* {{tl|Get QID}}
* {{tl|Area WD}}
* {{tl|Population WD}}
* {{tl|Convert}}
* {{tl|Data/popdens}}
* {{tl|Density}}
* {{tl|Pop density}}
<includeonly>{{sandbox other||
<!-- Categories below this line -->
[[Category:Bharatdata templates]] 
}}</includeonly>