public function extractPage($pageID, $pageTitle, $pageSource)
{
$result = new ExtractionResult($pageID, $this->language, $this->getExtractorID());
$foundCoordinates = array();
/* Main title */
if ($geoInfo = $this->extractGeoInfo($pageSource, true)) {
$pageG = new geo_param($geoInfo);
array_push($foundCoordinates, $pageG);
$this->log('debug', "Found title entry '" . implode("|", $geoInfo) . "'");
}
/* Coordinates provided in infobox formats */
$infoboxes = $this->getInfoboxes($pageSource);
foreach ($infoboxes[1] as $box) {
$boxProperties = $this->getBoxProperties($box, true);
foreach (GeoExtractor::$knownInfoboxFormats as $format) {
/* Initialize global defaults */
$pieces = array(null, 0, 0, 'N', null, 0, 0, 'E');
/* Apply template-specific NS/EW defaults */
if (isset($format[8])) {
/* NS default */
$pieces[3] = $format[8];
}
if (isset($format[9])) {
/* EW default */
$pieces[7] = $format[9];
}
/* Copy from template */
for ($i = 0; $i < count($format); $i++) {
$formatString = urldecode($format[$i]);
if ($formatString != "" && isset($boxProperties[strtolower($formatString)])) {
/* German coordinates: Treat 'O' (Ost) as 'E' (East) */
if ($i == 7 && $boxProperties[strtolower($formatString)] == 'O') {
$pieces[$i] = 'E';
} else {
$pieces[$i] = $boxProperties[strtolower($formatString)];
}
}
}
if (geo_param::is_lat($pieces[0]) && geo_param::is_long($pieces[4])) {
$g = new geo_param($pieces);
array_push($foundCoordinates, $g);
$this->log('debug', "Found format '" . $format[0] . "'");
}
}
/* $this->knownInfoboxFormats */
/*
* Look for coordinate tags inside the infobox
* Used widely, e.g. airports (=> Los_Angeles_International_Airport)
* These don't have to set the title, as they're in a first-level infobox
* We could simply take all references, but the idea here is to filter out
* cases where multiple locations are specified
*/
foreach (GeoExtractor::$knownTemplatePredicates as $coord) {
if (isset($boxProperties[strtolower(urldecode($coord))]) && ($geoInfo = $this->extractGeoInfo($boxProperties[strtolower(urldecode($coord))]))) {
$pageG = new geo_param($geoInfo);
array_push($foundCoordinates, $pageG);
$this->log('debug', "Found infobox entry '" . implode("|", $geoInfo) . "'");
}
}
}
/* infoboxes */
$numResults = 0;
foreach ($foundCoordinates as $g) {
if ($g->is_valid()) {
if (GeoExtractor::enablePreview) {
?>
<iframe src="http://maps.google.com/?q=<?php
echo $g->latdeg;
?>
,<?php
echo $g->londeg;
?>
&z=5" style="width: 1000px; height: 600px; border: none;" scrolling="no">
</iframe>
<?php
}
/* Only process the first result */
if (++$numResults == 1) {
$sqlParams = array("resource" => $pageID, "lang" => $this->language, "point" => (string) $g->latdeg . " " . (string) $g->londeg);
/* Check whether this exact entry is present */
if ($this->batchExtraction) {
$results = mysql_query($this->sqlParameterize(GeoExtractor::sqlCheckExact, $sqlParams), $this->dbSharedConnection);
$row = mysql_fetch_assoc($results);
$hasExact = $row['count'] != '0';
if ($hasExact) {
$hasAny = true;
} else {
/* Check whether any entry is present */
$results = mysql_query($this->sqlParameterize(GeoExtractor::sqlCheckAny, $sqlParams), $this->dbSharedConnection);
$row = mysql_fetch_assoc($results);
$hasAny = $row['count'] != '0';
}
} else {
$hasExact = $hasAny = false;
}
if ($hasAny) {
$this->log('debug', "Not generating geocoordinates because coordinates were previously generated for this resource");
} else {
/* Store in results table for duplicate detection */
if ($this->batchExtraction) {
mysql_query($this->sqlParameterize(GeoExtractor::sqlInsertPoint, $sqlParams), $this->dbSharedConnection);
}
/* Triple generation */
/* W3C Geospatial Vocabulary (GeoRSS) */
$result->addTriple($this->getPageURI(), RDFtriple::URI(GEORSS_POINT, false), RDFtriple::Literal((string) $g->latdeg . " " . (string) $g->londeg));
/* Basic Geo Vocabulary - only add them if there are no points for the resource so far; it'd be ambigous otherwise! */
if ($hasAny) {
$this->log('debug', "Not generating W3C Basic geocoordinates because basic coordinates were previously generated for this resource");
} else {
$result->addTriple($this->getPageURI(), RDFtriple::URI(WGS_LAT, false), RDFtriple::Literal((string) $g->latdeg, XS_FLOAT, NULL));
$result->addTriple($this->getPageURI(), RDFtriple::URI(WGS_LONG, false), RDFtriple::Literal((string) $g->londeg, XS_FLOAT, NULL));
}
/*
* Process additional attributes
* See http://en.wikipedia.org/wiki/Wikipedia:WikiProject_Geographical_coordinates#Parameters
* and http://de.wikipedia.org/wiki/Wikipedia:WikiProjekt_Georeferenzierung/Neue_Koordinatenvorlage#Parameter
*/
if (isset($g->attr['type'])) {
if (isset(GeoExtractor::$typeToGeoNames[$g->attr['type']])) {
$result->addTriple($this->getPageURI(), RDFtriple::URI(GEO_FEATURECLASS, false), RDFtriple::URI(GEONAMES_NS . GeoExtractor::$typeToGeoNames[$g->attr['type']][0]));
if (isset(GeoExtractor::$typeToGeoNames[$g->attr['type']][1])) {
$result->addTriple($this->getPageURI(), RDFtriple::URI(GEO_FEATURECODE, false), RDFtriple::URI(GEONAMES_NS . GeoExtractor::$typeToGeoNames[$g->attr['type']][0] . '.' . GeoExtractor::$typeToGeoNames[$g->attr['type']][1]));
}
}
/* city(pop): City, town or village with specified population */
if (strtolower($g->attr['type'] == 'city') && isset($g->attr['arg:type'])) {
$result->addTriple($this->getPageURI(), RDFtriple::URI(GEO_POPULATION, false), RDFtriple::Literal((string) $g->attr['arg:type'], XS_INTEGER, NULL));
}
/*
* landmark: Cultural landmark, building of special interest, tourist attration and other points of interest
* Mapped to YAGO; could in theory use http://www.eionet.europa.eu/gemet/concept/8525 ("tourist facility"),
* but it seems as if any POI not matching the above categories is tagged as a landmark
* (=> "Google" etc.)
*/
if (strtolower($g->attr['type'] == 'landmark')) {
$result->addTriple($this->getPageURI(), RDFtriple::URI(RDF_TYPE, false), RDFtriple::URI(YAGO_LANDMARK, false));
}
}
/* type */
/* population */
if (isset($g->attr['pop'])) {
$result->addTriple($this->getPageURI(), RDFtriple::URI(GEO_POPULATION, false), RDFtriple::Literal((string) $g->attr['pop'], XS_INTEGER, NULL));
}
/* elevation in meters above sea level
* TODO must be converted from sea level *to* wgs84 ellipsoid!
*/
/*if (isset($g->attr['elevation'])) {
$result->addTriple(
$this->getPageURI(),
RDFtriple::URI("http://www.georss.org/georss/elev"),
RDFtriple::Literal((string) $g->attr['elevation']);
}*/
/* Diameter (m) to GeoRSS radius (m) */
if (isset($g->attr['dim'])) {
$result->addTriple($this->getPageURI(), RDFtriple::URI(GEORSS_RADIUS, false), RDFtriple::Literal((string) ($g->attr['dim'] / 2), XS_DECIMAL, NULL));
}
/*
* region: ISO 3166-1 alpha-2 country code or ISO 3166-2 region code to GeoNames inCountry
* Very unreliable, as it just sets a preferred map view,
* i.e. Germany's and The Czech Republic's regions are set to "EN"....
*/
/*if (isset($g->attr['region']))
{
$result->addTriple(
$this->getPageURI(),
RDFtriple::URI("http://www.geonames.org/ontology#inCountry"),
RDFtriple::URI("http://www.geonames.org/countries/#".
substr($g->attr['region'], 0, 2)));
} */
}
/* !$hasExact */
}
/* first entry */
}
/* is_valid */
}
/* $foundCoordinates */
return $result;
}
public function extractPage($pageID, $pageTitle, $pageSource)
{
$result = new ExtractionResult($pageID, $this->language, self::extractorID);
$foundCoordinates = array();
/* Main title */
if ($geoInfo = $this->extractGeoInfo($pageSource, true)) {
$pageG = new geo_param($geoInfo);
array_push($foundCoordinates, $pageG);
if (GeoExtractor::enableDebug) {
echo "<h3>Found title entry '" . implode("|", $geoInfo) . "'</h3>";
}
}
/* Coordinates provided in infobox formats */
$infoboxes = $this->getInfoboxes($pageSource);
foreach ($infoboxes[1] as $box) {
$boxProperties = $this->getBoxProperties($box, true);
foreach ($this->knownInfoboxFormats as $format) {
/* Initialize global defaults */
$pieces = array(null, 0, 0, 'N', null, 0, 0, 'E');
/* Apply template-specific NS/EW defaults */
if (isset($format[8])) {
/* NS default */
$pieces[3] = $format[8];
}
if (isset($format[9])) {
/* EW default */
$pieces[7] = $format[9];
}
/* Copy from template */
for ($i = 0; $i < count($format); $i++) {
$formatString = urldecode($format[$i]);
if ($formatString != "" && isset($boxProperties[strtolower($formatString)])) {
/* German coordinates: Treat 'O' (Ost) as 'E' (East) */
if ($i == 7 && $boxProperties[strtolower($formatString)] == 'O') {
$pieces[$i] = 'E';
} else {
$pieces[$i] = $boxProperties[strtolower($formatString)];
}
}
}
if (geo_param::is_lat($pieces[0]) && geo_param::is_long($pieces[4])) {
$g = new geo_param($pieces);
array_push($foundCoordinates, $g);
if (GeoExtractor::enableDebug) {
echo "<h3>Found format '" . $format[0] . "'</h3>";
}
}
}
/* $this->knownInfoboxFormats */
/*
* Look for coordinate tags inside the infobox
* Used widely, e.g. airports (=> Los_Angeles_International_Airport)
* These don't have to set the title, as they're in a first-level infobox
* We could simply take all references, but the idea here is to filter out
* cases where multiple locations are specified
*/
foreach ($this->knownTemplatePredicates as $coord) {
if (isset($boxProperties[strtolower(urldecode($coord))]) && ($geoInfo = $this->extractGeoInfo($boxProperties[strtolower(urldecode($coord))]))) {
$pageG = new geo_param($geoInfo);
array_push($foundCoordinates, $pageG);
if (GeoExtractor::enableDebug) {
echo "<h3>Found infobox entry '" . implode("|", $geoInfo) . "'</h3>";
}
}
}
}
/* infoboxes */
$numResults = 0;
foreach ($foundCoordinates as $g) {
if ($g->is_valid()) {
if (GeoExtractor::enablePreview) {
?>
<iframe src="http://christianhbecker.com/da/workspace/gmap.php?lat=<?php
echo $g->latdeg;
?>
&long=<?php
echo $g->londeg;
?>
&scale=5" style="width: 500px; height: 300px; border: none;" scrolling="no">
</iframe>
<?php
}
/* Only process the first result */
if (++$numResults == 1) {
$result->addTriple(RDFtriple::page($pageID), RDFtriple::URI("http://www.w3.org/2003/01/geo/wgs84_pos#lat"), RDFtriple::Literal((string) $g->latdeg, "http://www.w3.org/2001/XMLSchema#float", NULL));
$result->addTriple(RDFtriple::page($pageID), RDFtriple::URI("http://www.w3.org/2003/01/geo/wgs84_pos#long"), RDFtriple::Literal((string) $g->londeg, "http://www.w3.org/2001/XMLSchema#float", NULL));
/*
* Process additional attributes
* See http://en.wikipedia.org/wiki/Wikipedia:WikiProject_Geographical_coordinates#Parameters
*/
if (isset($g->attr['type'])) {
if (isset($this->typeToGeoNames[$g->attr['type']])) {
$result->addTriple(RDFtriple::page($pageID), RDFtriple::URI("http://www.geonames.org/ontology#featureClass"), RDFtriple::URI("http://www.geonames.org/ontology#" . $this->typeToGeoNames[$g->attr['type']][0]));
if (isset($this->typeToGeoNames[$g->attr['type']][1])) {
$result->addTriple(RDFtriple::page($pageID), RDFtriple::URI("http://www.geonames.org/ontology#featureCode"), RDFtriple::URI("http://www.geonames.org/ontology#" . $this->typeToGeoNames[$g->attr['type']][0] . '.' . $this->typeToGeoNames[$g->attr['type']][1]));
}
}
/* city(pop): City, town or village with specified population */
if (strtolower($g->attr['type'] == 'city') && isset($g->attr['arg:type'])) {
$result->addTriple(RDFtriple::page($pageID), RDFtriple::URI("http://www.geonames.org/ontology#population"), RDFtriple::Literal($g->attr['arg:type'], "http://www.w3.org/2001/XMLSchema#integer", NULL));
}
/*
* landmark: Cultural landmark, building of special interest, tourist attration and other points of interest
* Mapped to YAGO; could in theory use http://www.eionet.europa.eu/gemet/concept/8525 ("tourist facility"),
* but it seems as if any POI not matching the above categories is tagged as a landmark
* (=> "Google" etc.)
*/
if (strtolower($g->attr['type'] == 'landmark')) {
$result->addTriple(RDFtriple::page($pageID), RDFtriple::URI("http://www.w3.org/1999/02/22-rdf-syntax-ns#type"), RDFtriple::URI("http://dbpedia.org/class/yago/Landmark108624891"));
}
}
/* type */
/*
* region: ISO 3166-1 alpha-2 country code or ISO 3166-2 region code to GeoNames inCountry
* Very unreliable, as it just sets a preferred map view,
* i.e. Germany's and The Czech Republic's regions are set to "EN"....
*/
/*if (isset($g->attr['region']))
{
$result->addTriple(
RDFtriple::page($pageID),
RDFtriple::URI("http://www.geonames.org/ontology#inCountry"),
RDFtriple::URI("http://www.geonames.org/countries/#".
substr($g->attr['region'], 0, 2)));
} */
}
}
/* is_valid */
}
/* $foundCoordinates */
return $result;
}