MediaWiki GIS Extensions: Unterschied zwischen den Versionen

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=Google Maps Extensions=
 
=Google Maps Extensions=
  
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<Map>53.0419921875|8.85000228881836|10|http://www.giswiki.org/|GISWiki|http://www.giswiki.org/skins/common/images/wiki.png\|30</Map>
 
<Map>53.0419921875|8.85000228881836|10|http://www.giswiki.org/|GISWiki|http://www.giswiki.org/skins/common/images/wiki.png\|30</Map>
  
 +
==Infofenster-Extension ==
 +
 +
===Code===
 +
<pre>
 +
 +
<?php
 +
 +
# Map WikiMedia extension
 +
#
 +
# Uses Google Maps as a Map Server
 +
#
 +
# This extension displays a map and an info on given coordinates
 +
#
 +
# Copy this text into a file called "hjlMapI.php"
 +
# To activate the extension, include it from your LocalSettings.php
 +
# with: include("extensions/hjlMapI.php");
 +
#
 +
# Use the tags <MapI>Latitude|Longitude|ZoomFactor|InfoText<MapI> to display this map.
 +
#
 +
# Sample: "<MapI>53.053|7.803|10|GISWiki got a GoogleMap</MapI>"
 +
#
 +
# Missing: error-handling, ....
 +
 +
 +
$wgExtensionFunctions[] = "wfMapIExtension";
 +
 +
function wfMapIExtension()
 +
{
 +
global $wgParser;
 +
$wgParser->setHook( "MapI", "renderMapI" );
 +
}
 +
 +
# The callback function for converting the input text to HTML output
 +
function renderMapI( $input )
 +
{
 +
 +
$varAr = explode("|", $input);
 +
 +
$varLat =  $varAr[0];
 +
$varLon =  $varAr[1];
 +
$varZoom=  $varAr[2];
 +
$varInfo = $varAr[3];
 +
 +
# Hint: you need to sign up for a Google Maps API key!!
 +
#      http://www.google.com/apis/maps/signup.html
 +
#      Then replace the key below.
 +
 +
$aMap =
 +
"
 +
<script src='http://maps.google.com/maps?file=api&v=1&key=ABQIAAAAmSaaWiH-UdM6X8GKUpwrShRxST-HWBdKUWLFy_5rr1CqF7sELxRXeY9OVogKb86vpauaaMAdd8JMQQ' type='text/javascript'></script>
 +
<div id='map' style='width: 500px; height: 400px'></div>
 +
<script type='text/javascript'>
 +
//<![CDATA[
 +
var map = new GMap(document.getElementById('map'));
 +
//map.addControl(new GSmallMapControl());
 +
//map.addControl(new GMapTypeControl());
 +
map.addControl(new GLargeMapControl());
 +
map.addControl(new GMapTypeControl());
 +
map.centerAndZoom(new GPoint(".$varLon.", ".$varLat."), ".$varZoom.");
 +
map.setMapType(_SATELLITE_TYPE);
 +
map.openInfoWindow(map.getCenterLatLng(),
 +
document.createTextNode('".$varInfo."'));
 +
</script>
 +
";
 +
 +
return $aMap;
 +
}
 +
?>
 +
</pre>
 +
 +
=== Beispiel / Sample===
 +
 +
'''Eingabe / Input'''
 +
 +
<nowiki>
 +
<MapI>53.0419921875|8.85000228881836|10|GISWiki got a Map</MapI>
 +
</nowiki>
 +
 +
'''Ergebnis / Result'''
 +
 +
<MapI>53.0419921875|8.85000228881836|10|GISWiki got a Map</MapI>
 +
 +
=== Installation der GoogleMap-Extension ===
 +
 +
Entsprechend der Anleitung im SourceCode und [http://meta.wikimedia.org/wiki/MediaWiki_Hacks_and_Extensions MediaWiki Hacks and Extensions] gehen Sie so vor:
 +
* Speichern Sie den Code in einer Datei, z.B. mit dem Namen hjlMapI.php oder hjlMap.php
 +
* Fügen sie ihren Key ein den Sie von GoogleMaps erhalten haben
 +
* Laden Sie die Datei auf ihren Server in das Verzeichnis /extensions/
 +
* Fügen Sie am Ende der Datei LocalSettings.php die Zeile
 +
include("extensions/google-map-extension.php");
 +
 +
=== Installation of the GoogleMap-Extension ===
 +
 +
According to the text of the code above and  [http://meta.wikimedia.org/wiki/MediaWiki_Hacks_and_Extensions MediaWiki Hacks and Extensions]:
 +
* Save the code in a file e.g. called hjlMap
 +
* Copy and paste the Key you got from Google for your GoogleMaps (http://www.google.com/apis/maps/signup.html) into the GoogleMap Extension (search for key).
 +
* Save this file into the directory  /extensions/
 +
* add '''include("extensions/google-map-extension.php")'''; to LocalSettings.php
 +
 +
== Weblinks ==
 +
* http://maps.google.com/
 +
* [http://www.google.com/apis/maps/ Programmierschnittstelle (API) für die Google Maps]
 +
 +
==Siehe auch ==
 +
 +
* http://earth.google.com/
 +
** [http://www.kartographie.uni-trier.de/p/h/users/sk/Google_Earth/google_earth_de_wikipedia.htm Artikel der deutschsprachigen Wikipedia in Google Earth visualisieren]
 +
 +
*[http://libgmail.sourceforge.net/googlemaps.html Google Maps Hacking and Bookmarklets]<br>which contains several steps on how you can customize and add information to Google Maps.
 +
 +
* There's also a pointer to http://mygmaps.com , which allows you to display custom data files with Google Maps. (The site is alphaish, so things may break.)
 +
 +
* [http://monkeyhomes.com/map/nycsubway.php New York Subway Stops on Google Maps]
 +
 +
* [http://gpswanderer.blogspot.com/2005_04_01_gpswanderer_archive.html Mobile Google Maps with GPS (not really a mashup, but nifty)]
 +
 +
* [http://www.artfahrt.com/products.html Google Maps on your TiVO]
 +
 +
* [http://www.geobloggers.com/ Geobloggers: Lat/Lon tagged Flickr photos represented on Google Maps. About 8000 photos tagged so far.]
 +
 +
* http://www.chicagocrime.org/
 +
 +
* http://www.housingmaps.com/
 +
 +
* [http://www.golem.de/0503/37128.html Google: Ortsbezogene Suche kommt nach Deutschland]
 +
 +
=GIS-Extension=
 +
 +
Die GIS-Erweiterung auf der [http://meta.wikimedia.org/wiki/Gis MediaWiki-Seite] wurde erweitert.
 +
 +
Die Tabelle GIS wurde um zwei Felder erweitert. In folgender SQL-Anweisung sind die Änderungen fett hervorgehoben. Hinzu kam ein Feld '''gis_title''' für die Aufnahme alternativer/zusätzlicher Texte sowie das Feld '''gis_url''' um auf weitere Weblinks verweisen zu können als nur die aktuell verwendete Artikelseite.
 +
 +
==Tabelle==
 +
 +
CREATE TABLE /*$wgDBprefix*/gis (
 +
  gis_page int(8) unsigned NOT NULL,
 +
  '''gis_title varchar(255) binary default NULL,'''
 +
  '''gis_url varchar(255) binary default NULL,'''
 +
  gis_latitude_min real NOT NULL,
 +
  gis_latitude_max real NOT NULL,
 +
  gis_longitude_min real NOT NULL,
 +
  gis_longitude_max real NOT NULL,
 +
  gis_globe char(8) binary NOT NULL default '',
 +
  gis_type char(12) binary,
 +
  gis_type_arg real NOT NULL default 0,
 +
 
 +
  KEY gis_page (gis_page),
 +
  INDEX gis_globe (gis_globe),
 +
  INDEX gis_type (gis_type),
 +
  INDEX gis_type_arg (gis_type_arg)
 +
);
 +
 +
==Dateien/Funktionen==
 +
 +
Folgende Dateien/Funktionen der GIS-Erweiterung wurden diesbezüglich angepasst.
 +
* database.php
 +
* geo.php
 +
 +
Hier die Änderungen in den Funktionen. Änderungen sind fett gekennzeichnet.
 +
 +
===database.php - function article_save_geo===
 +
 +
  function article_save_geo ( $article, $user, $text )
 +
  {
 +
    $id = $article->getID();
 +
 
 +
    $g = new gis_database();
 +
 
 +
    $g->delete_position( $id );
 +
 
 +
    $tag = 'geo';
 +
    $gis_content = array();
 +
    $text = Parser::extractTags( $tag, $text, $gis_content );
 +
 
 +
    foreach( $gis_content as $marker => $content ) {
 +
 
 +
      $p = new geo_param( $content );
 +
      $attr = $p->get_attr();
 +
 
 +
      //Begin Changes
 +
      //
 +
      //Added code for support of field "gis_title" and "gis_url"
 +
      //see also "database.php"
 +
      //Heinz-Josef Lücking - 7.7.2005
 +
      //
 +
 
 +
      $g->add_position( $id,
 +
            $p->latdeg_min, $p->londeg_min,
 +
            $p->latdeg_max, $p->londeg_max,
 +
            $attr['globe'],
 +
            $attr['type'], $attr['arg:type']''', $attr['title'], $attr['url']''' );
 +
 
 +
      //End Changes
 +
    }
 +
    return true;
 +
  }
 +
 +
===database.php - function add_position===
 +
 +
  function add_position( $id, $latmin, $lonmin,
 +
            $latmax, $lonmax, $globe, $type, $type_arg, $title, $url)
 +
  {
 +
 +
    $fname = 'gis_database::add_position';
 +
   
 +
    //Begin Changes
 +
    //
 +
    //Added code for support of field "gis_title" and "gis_url"
 +
    //see also "database.php"
 +
    //Heinz-Josef Lücking - 7.7.2005
 +
    //
 +
   
 +
    '''//If no title is set, the pagename is used.'''
 +
   
 +
    '''if ($title == "") '''
 +
    '''{'''
 +
    '''  $aTitle = gis_database::get_title( $id );'''
 +
    '''} else {'''
 +
    '''  $aTitle = $title;'''
 +
    '''};'''
 +
 +
    if (!$globe) $globe = "";
 +
 +
    $type_arg = str_replace( ',', '', $type_arg); /* ignore commas */
 +
 +
    $this->db->insert( 'gis',
 +
        array(
 +
          'gis_page'          => $id,
 +
          ''''gis_title'        => $aTitle,'''
 +
          ''''gis_url'          => $url,'''
 +
          'gis_latitude_min'  => $latmin,
 +
          'gis_longitude_min' => $lonmin,
 +
          'gis_latitude_max'  => $latmax,
 +
          'gis_longitude_max' => $lonmax,
 +
          'gis_globe'        => $globe,
 +
          'gis_type'          => $type,
 +
          'gis_type_arg'      => $type_arg),
 +
        $fname );
 +
   
 +
    //End Changes
 +
  }
  
 +
===geo.php - function geo_param===
  
 +
  function geo_param( $param )
 +
  {
 +
 
 +
    //Begin Changes
 +
    //
 +
    //Added code for support of field "gis_title" and "gis_url"
 +
    //see also "database.php"
 +
    //Heinz-Josef Lücking - 7.7.2005
 +
    //
 +
    '''$sparam = str_replace( ' title:', '#|title:', $param);'''
 +
    '''$sparam = str_replace( ' url:', '#|url:', $sparam);'''
 +
 
 +
    '''$arparam = explode("#", $sparam );'''
 +
 
 +
    '''for ($i=0; $i<count($arparam); $i++) {'''
 +
      '''$var = stristr($arparam[$i],'|');'''
 +
      '''if ($var === false) {'''
 +
        '''$var = str_replace( '_', ' ', $arparam[$i] );'''
 +
        '''$var = str_replace( ' ', '|', $var );'''
 +
        '''$arparam[$i] = $var;'''
 +
      '''}'''
 +
    '''}'''
 +
    '''$sparam =implode("",$arparam);'''
 +
   
 +
    '''$this->pieces = explode("|", str_replace( '_', ' ', $sparam ));'''
 +
   
 +
    //End Changes
 +
   
 +
    $this->get_coor( );
 +
 +
    $this->latdeg_min = $this->latdeg_max = $this->latdeg;
 +
    $this->londeg_min = $this->londeg_max = $this->londeg;
 +
    if ($this->pieces[0] == "to") {
 +
      array_shift($this->pieces);
 +
      $this->get_coor();
 +
      if ($this->latdeg < $this->latdeg_max) {
 +
        $this->latdeg_min = $this->latdeg;
 +
      } else {
 +
        $this->latdeg_max = $this->latdeg;
 +
      }
 +
      if ($this->londeg < $this->londeg_max) {
 +
        $this->londeg_min = $this->londeg;
 +
      } else {
 +
        $this->londeg_max = $this->londeg;
 +
      }
 +
      $this->latdeg = ($this->latdeg_max+$this->latdeg_min) / 2;
 +
      $this->londeg = ($this->londeg_max+$this->londeg_min) / 2;
 +
      $this->coor = array();
 +
    }
 +
  }
  
 +
=Koordinatentool "hjl_get_Coor"=
  
 +
[[Image:HjlgetCoor.jpg|thumb|]]Unter Zurhilfenahme der [[Google Maps]] wurde ein Tool für das GISWiki und MediaWiki entwickelt, das die Erstellung von Koordinatenbezügen erleichtert. Die Geokoordinaten werden den Google Maps entnommen. Eingabe- und Auswahlfelder bieten die Möglichkeit weitere Informationen hinzuzufügen.
  
 +
Näheres siehe [[hjl_get_Coor]].
  
 
[[Kategorie:Web Mapping]]
 
[[Kategorie:Web Mapping]]
 
[[Kategorie:Geodaten]]
 
[[Kategorie:Geodaten]]

Version vom 13. August 2005, 14:43 Uhr

Google Maps Extensions

Google Maps ist der Karten- und Routing-Service von Google.

Marker Extension

Code


<?php

# Map WikiMedia extension
# 
# Uses Google Maps as a Map Server
#
# This extension displays a marker with further infos (when clicking)  on given coordinates
#
# Copy this text into a file called "hjlMap.php"
# To activate the extension, include it from your LocalSettings.php
# with: include("extensions/hjlMap.php"); 
#
# Use the tags <map>Latitude|Longitude|ZoomFactor|URL|URL-Text|URL-Image|Image-Height</map> to display this map.
#
# Sample: "<map>53.053|7.803|10|http://www.giswiki.org/|GISWiki|http://www.giswiki.org/skins/common/images/wiki.png\|30</map>"
#
# Missing: error-handling, ....


$wgExtensionFunctions[] = "wfMapExtension";

function wfMapExtension() 
{
	global $wgParser;
	$wgParser->setHook( "Map", "renderMap" );
}

# The callback function for converting the input text to HTML output
function renderMap( $input ) 
{

$varAr = explode("|", $input);

$varLat	  = $varAr[0];
$varLon	  = $varAr[1];
$varZoom  = $varAr[2];
$varURL   = $varAr[3];
$varText  = $varAr[4];
$varImg   = $varAr[5];
$varImgH  = $varAr[6];

# Hint: you need to sign up for a Google Maps API key!!
#       http://www.google.com/apis/maps/signup.html
#       Then replace the key below.

$varInfo = "<img src=\"".$varImg."\" height=\"".$varImgH."\" width=\"".$varImgW."\"><br><a href=\"".$varURL."\" target=\"_blank\">".$varText."</a>";

$aMap = 
"

<script>
// Creates a marker whose info window displays the given number
function createMarker(point, text) {
var marker = new GMarker(point);
var html = text + \"<br><br><font size='-1'>(öffnet in neuem Fenster)</font>\";
GEvent.addListener(marker, \"click\", function() {marker.openInfoWindowHtml(html);});
return marker;
}
</script>

<script src='http://maps.google.com/maps?file=api&v=1&key=ABQIAAAAmSaaWiH-UdM6X8GKUpwrShRxST-HWBdKUWLFy_5rr1CqF7sELxRXeY9OVogKb86vpauaaMAdd8JMQQ' type='text/javascript'></script>
<div id='map' style='width: 500px; height: 400px'></div>
<script type='text/javascript'>
//<![CDATA[
var map = new GMap(document.getElementById('map'));
//map.addControl(new GSmallMapControl());
//map.addControl(new GMapTypeControl());
map.addControl(new GLargeMapControl());
map.addControl(new GMapTypeControl());
map.centerAndZoom(new GPoint(".$varLon.", ".$varLat."), ".$varZoom.");
map.setMapType(_SATELLITE_TYPE);
var point = new GPoint(".$varLon.",".$varLat.");
var marker = createMarker(point, '".$varInfo."');
map.addOverlay(marker);
</script>
";

return $aMap;
}
?>

Beispiel / Sample

Eingabe / Input

<map>53.0419921875|8.85000228881836|10|http://www.giswiki.org/|GISWiki|http://www.giswiki.org/skins/common/images/wiki.png\|30</map>

Ergebnis / Result

<Map>53.0419921875|8.85000228881836|10|http://www.giswiki.org/%7CGISWiki%7Chttp://www.giswiki.org/skins/common/images/wiki.png\%7C30</Map>

Infofenster-Extension

Code


<?php

# Map WikiMedia extension
# 
# Uses Google Maps as a Map Server
#
# This extension displays a map and an info on given coordinates
#
# Copy this text into a file called "hjlMapI.php"
# To activate the extension, include it from your LocalSettings.php
# with: include("extensions/hjlMapI.php"); 
#
# Use the tags <MapI>Latitude|Longitude|ZoomFactor|InfoText<MapI> to display this map.
#
# Sample: "<MapI>53.053|7.803|10|GISWiki got a GoogleMap</MapI>"
#
# Missing: error-handling, ....


$wgExtensionFunctions[] = "wfMapIExtension";

function wfMapIExtension() 
{
	global $wgParser;
	$wgParser->setHook( "MapI", "renderMapI" );
}

# The callback function for converting the input text to HTML output
function renderMapI( $input ) 
{

$varAr = explode("|", $input);

$varLat	=  $varAr[0];
$varLon	=  $varAr[1];
$varZoom=  $varAr[2];
$varInfo = $varAr[3];

# Hint: you need to sign up for a Google Maps API key!!
#       http://www.google.com/apis/maps/signup.html
#       Then replace the key below.

$aMap = 
"
<script src='http://maps.google.com/maps?file=api&v=1&key=ABQIAAAAmSaaWiH-UdM6X8GKUpwrShRxST-HWBdKUWLFy_5rr1CqF7sELxRXeY9OVogKb86vpauaaMAdd8JMQQ' type='text/javascript'></script>
<div id='map' style='width: 500px; height: 400px'></div>
<script type='text/javascript'>
//<![CDATA[
var map = new GMap(document.getElementById('map'));
//map.addControl(new GSmallMapControl());
//map.addControl(new GMapTypeControl());
map.addControl(new GLargeMapControl());
map.addControl(new GMapTypeControl());
map.centerAndZoom(new GPoint(".$varLon.", ".$varLat."), ".$varZoom.");
map.setMapType(_SATELLITE_TYPE);
map.openInfoWindow(map.getCenterLatLng(),
document.createTextNode('".$varInfo."'));
</script>
";

return $aMap;
}
?>

Beispiel / Sample

Eingabe / Input

<MapI>53.0419921875|8.85000228881836|10|GISWiki got a Map</MapI>

Ergebnis / Result

<MapI>53.0419921875|8.85000228881836|10|GISWiki got a Map</MapI>

Installation der GoogleMap-Extension

Entsprechend der Anleitung im SourceCode und MediaWiki Hacks and Extensions gehen Sie so vor:

  • Speichern Sie den Code in einer Datei, z.B. mit dem Namen hjlMapI.php oder hjlMap.php
  • Fügen sie ihren Key ein den Sie von GoogleMaps erhalten haben
  • Laden Sie die Datei auf ihren Server in das Verzeichnis /extensions/
  • Fügen Sie am Ende der Datei LocalSettings.php die Zeile
include("extensions/google-map-extension.php");

Installation of the GoogleMap-Extension

According to the text of the code above and MediaWiki Hacks and Extensions:

  • Save the code in a file e.g. called hjlMap
  • Copy and paste the Key you got from Google for your GoogleMaps (http://www.google.com/apis/maps/signup.html) into the GoogleMap Extension (search for key).
  • Save this file into the directory /extensions/
  • add include("extensions/google-map-extension.php"); to LocalSettings.php

Weblinks

Siehe auch

  • There's also a pointer to http://mygmaps.com , which allows you to display custom data files with Google Maps. (The site is alphaish, so things may break.)

GIS-Extension

Die GIS-Erweiterung auf der MediaWiki-Seite wurde erweitert.

Die Tabelle GIS wurde um zwei Felder erweitert. In folgender SQL-Anweisung sind die Änderungen fett hervorgehoben. Hinzu kam ein Feld gis_title für die Aufnahme alternativer/zusätzlicher Texte sowie das Feld gis_url um auf weitere Weblinks verweisen zu können als nur die aktuell verwendete Artikelseite.

Tabelle

CREATE TABLE /*$wgDBprefix*/gis (
  gis_page int(8) unsigned NOT NULL,
  gis_title varchar(255) binary default NULL,
  gis_url varchar(255) binary default NULL,
  gis_latitude_min real NOT NULL,
  gis_latitude_max real NOT NULL,
  gis_longitude_min real NOT NULL,
  gis_longitude_max real NOT NULL,
  gis_globe char(8) binary NOT NULL default ,
  gis_type char(12) binary,
  gis_type_arg real NOT NULL default 0,
  
  KEY gis_page (gis_page),
  INDEX gis_globe (gis_globe),
  INDEX gis_type (gis_type),
  INDEX gis_type_arg (gis_type_arg)
);

Dateien/Funktionen

Folgende Dateien/Funktionen der GIS-Erweiterung wurden diesbezüglich angepasst.

  • database.php
  • geo.php

Hier die Änderungen in den Funktionen. Änderungen sind fett gekennzeichnet.

database.php - function article_save_geo

 function article_save_geo ( $article, $user, $text ) 
 {
   $id = $article->getID();
 
   $g = new gis_database();
 
   $g->delete_position( $id );
 
   $tag = 'geo';
   $gis_content = array();
   $text = Parser::extractTags( $tag, $text, $gis_content );
 
   foreach( $gis_content as $marker => $content ) {
 
     $p = new geo_param( $content );
     $attr = $p->get_attr();
 
     //Begin Changes
     //
     //Added code for support of field "gis_title" and "gis_url"
     //see also "database.php"
     //Heinz-Josef Lücking - 7.7.2005
     //
 
     $g->add_position( $id,
            $p->latdeg_min, $p->londeg_min,
            $p->latdeg_max, $p->londeg_max,
            $attr['globe'],
            $attr['type'], $attr['arg:type'], $attr['title'], $attr['url'] );
 
     //End Changes
   }
   return true;
 }

database.php - function add_position

 function add_position( $id, $latmin, $lonmin, 
            $latmax, $lonmax, $globe, $type, $type_arg, $title, $url)
 {

   $fname = 'gis_database::add_position';
   
   //Begin Changes
   //
   //Added code for support of field "gis_title" and "gis_url"
   //see also "database.php"
   //Heinz-Josef Lücking - 7.7.2005
   //
   
   //If no title is set, the pagename is used.
   
   if ($title == "") 
   {
     $aTitle = gis_database::get_title( $id );
   } else {
     $aTitle = $title;
   };

   if (!$globe) $globe = "";

   $type_arg = str_replace( ',', , $type_arg); /* ignore commas */

   $this->db->insert( 'gis',
       array(
         'gis_page'          => $id,
         'gis_title'         => $aTitle,
         'gis_url'           => $url,
         'gis_latitude_min'  => $latmin,
         'gis_longitude_min' => $lonmin,
         'gis_latitude_max'  => $latmax,
         'gis_longitude_max' => $lonmax,
         'gis_globe'         => $globe,
         'gis_type'          => $type,
         'gis_type_arg'      => $type_arg),
       $fname );
   
   //End Changes
 }

geo.php - function geo_param

 function geo_param( $param )
 {
 
   //Begin Changes
   //
   //Added code for support of field "gis_title" and "gis_url"
   //see also "database.php"
   //Heinz-Josef Lücking - 7.7.2005
   //
   $sparam = str_replace( ' title:', '#|title:', $param);
   $sparam = str_replace( ' url:', '#|url:', $sparam);
 
   $arparam = explode("#", $sparam );
 
   for ($i=0; $i<count($arparam); $i++) {
     $var = stristr($arparam[$i],'|');
     if ($var === false) {
       $var = str_replace( '_', ' ', $arparam[$i] );
       $var = str_replace( ' ', '|', $var );
       $arparam[$i] = $var;
     }
   }
   $sparam =implode("",$arparam);
   
   $this->pieces = explode("|", str_replace( '_', ' ', $sparam ));
    
   //End Changes
    
   $this->get_coor( );

   $this->latdeg_min = $this->latdeg_max = $this->latdeg;
   $this->londeg_min = $this->londeg_max = $this->londeg;
   if ($this->pieces[0] == "to") {
     array_shift($this->pieces);
     $this->get_coor();
     if ($this->latdeg < $this->latdeg_max) {
       $this->latdeg_min = $this->latdeg;
     } else {
       $this->latdeg_max = $this->latdeg;
     }
     if ($this->londeg < $this->londeg_max) {
       $this->londeg_min = $this->londeg;
     } else {
       $this->londeg_max = $this->londeg;
     }
     $this->latdeg = ($this->latdeg_max+$this->latdeg_min) / 2;
     $this->londeg = ($this->londeg_max+$this->londeg_min) / 2;
     $this->coor = array();
   }
 }

Koordinatentool "hjl_get_Coor"

HjlgetCoor.jpg
Unter Zurhilfenahme der Google Maps wurde ein Tool für das GISWiki und MediaWiki entwickelt, das die Erstellung von Koordinatenbezügen erleichtert. Die Geokoordinaten werden den Google Maps entnommen. Eingabe- und Auswahlfelder bieten die Möglichkeit weitere Informationen hinzuzufügen.

Näheres siehe hjl_get_Coor.

Von „http://giswiki.org/index.php?title=MediaWiki_GIS_Extensions&oldid=2605“