Nominatim/lib/lib.php

<?php


function fail($sError, $sUserError = false)
{
    if (!$sUserError) $sUserError = $sError;
    error_log('ERROR: '.$sError);
    echo $sUserError."\n";
    exit(-1);
}


function getProcessorCount()
{
    $sCPU = file_get_contents('/proc/cpuinfo');
    preg_match_all('#processor\s+: [0-9]+#', $sCPU, $aMatches);
    return sizeof($aMatches[0]);
}


function getTotalMemoryMB()
{
    $sCPU = file_get_contents('/proc/meminfo');
    preg_match('#MemTotal: +([0-9]+) kB#', $sCPU, $aMatches);
    return (int)($aMatches[1]/1024);
}


function getCacheMemoryMB()
{
    $sCPU = file_get_contents('/proc/meminfo');
    preg_match('#Cached: +([0-9]+) kB#', $sCPU, $aMatches);
    return (int)($aMatches[1]/1024);
}

function getDatabaseDate(&$oDB)
{
    // Find the newest node in the DB
    $iLastOSMID = $oDB->getOne("select max(osm_id) from place where osm_type = 'N'");
    // Lookup the timestamp that node was created
    $sLastNodeURL = 'https://www.openstreetmap.org/api/0.6/node/'.$iLastOSMID."/1";
    $sLastNodeXML = file_get_contents($sLastNodeURL);

    if ($sLastNodeXML === false) {
        return false;
    }

    preg_match('#timestamp="(([0-9]{4})-([0-9]{2})-([0-9]{2})T([0-9]{2}):([0-9]{2}):([0-9]{2})Z)"#', $sLastNodeXML, $aLastNodeDate);

    return $aLastNodeDate[1];
}


function byImportance($a, $b)
{
    if ($a['importance'] != $b['importance'])
        return ($a['importance'] > $b['importance']?-1:1);

    return ($a['foundorder'] < $b['foundorder']?-1:1);
}


function getWordSets($aWords, $iDepth)
{
    $aResult = array(array(join(' ', $aWords)));
    $sFirstToken = '';
    if ($iDepth < 7) {
        while (sizeof($aWords) > 1) {
            $sWord = array_shift($aWords);
            $sFirstToken .= ($sFirstToken?' ':'').$sWord;
            $aRest = getWordSets($aWords, $iDepth+1);
            foreach ($aRest as $aSet) {
                $aResult[] = array_merge(array($sFirstToken), $aSet);
            }
        }
    }
    return $aResult;
}

function getInverseWordSets($aWords, $iDepth)
{
    $aResult = array(array(join(' ', $aWords)));
    $sFirstToken = '';
    if ($iDepth < 8) {
        while (sizeof($aWords) > 1) {
            $sWord = array_pop($aWords);
            $sFirstToken = $sWord.($sFirstToken?' ':'').$sFirstToken;
            $aRest = getInverseWordSets($aWords, $iDepth+1);
            foreach ($aRest as $aSet) {
                $aResult[] = array_merge(array($sFirstToken), $aSet);
            }
        }
    }
    return $aResult;
}


function getTokensFromSets($aSets)
{
    $aTokens = array();
    foreach ($aSets as $aSet) {
        foreach ($aSet as $sWord) {
            $aTokens[' '.$sWord] = ' '.$sWord;
            $aTokens[$sWord] = $sWord;
        }
    }
    return $aTokens;
}


function getClassTypes()
{
    return array(
            'boundary:administrative:1' => array('label' => 'Continent', 'frequency' => 0, 'icon' => 'poi_boundary_administrative', 'defdiameter' => 0.32),
            'boundary:administrative:2' => array('label' => 'Country', 'frequency' => 0, 'icon' => 'poi_boundary_administrative', 'defdiameter' => 0.32),
            'place:country' => array('label' => 'Country', 'frequency' => 0, 'icon' => 'poi_boundary_administrative', 'defzoom' => 6, 'defdiameter' => 15),
            'boundary:administrative:3' => array('label' => 'State', 'frequency' => 0, 'icon' => 'poi_boundary_administrative', 'defdiameter' => 0.32),
            'boundary:administrative:4' => array('label' => 'State', 'frequency' => 0, 'icon' => 'poi_boundary_administrative', 'defdiameter' => 0.32),
            'place:state' => array('label' => 'State', 'frequency' => 0, 'icon' => 'poi_boundary_administrative', 'defzoom' => 8, 'defdiameter' => 5.12),
            'boundary:administrative:5' => array('label' => 'State District', 'frequency' => 0, 'icon' => 'poi_boundary_administrative', 'defdiameter' => 0.32),
            'boundary:administrative:6' => array('label' => 'County', 'frequency' => 0, 'icon' => 'poi_boundary_administrative', 'defdiameter' => 0.32),
            'boundary:administrative:7' => array('label' => 'County', 'frequency' => 0, 'icon' => 'poi_boundary_administrative', 'defdiameter' => 0.32),
            'place:county' => array('label' => 'County', 'frequency' => 108, 'icon' => 'poi_boundary_administrative', 'defzoom' => 10, 'defdiameter' => 1.28),
            'boundary:administrative:8' => array('label' => 'City', 'frequency' => 0, 'icon' => 'poi_boundary_administrative', 'defdiameter' => 0.32),
            'place:city' => array('label' => 'City', 'frequency' => 66, 'icon' => 'poi_place_city', 'defzoom' => 12, 'defdiameter' => 0.32),
            'boundary:administrative:9' => array('label' => 'City District', 'frequency' => 0, 'icon' => 'poi_boundary_administrative', 'defdiameter' => 0.32),
            'boundary:administrative:10' => array('label' => 'Suburb', 'frequency' => 0, 'icon' => 'poi_boundary_administrative', 'defdiameter' => 0.32),
            'boundary:administrative:11' => array('label' => 'Neighbourhood', 'frequency' => 0, 'icon' => 'poi_boundary_administrative', 'defdiameter' => 0.32),
            'place:region' => array('label' => 'Region', 'frequency' => 0, 'icon' => 'poi_boundary_administrative', 'defzoom' => 8, 'defdiameter' => 0.04),
            'place:island' => array('label' => 'Island', 'frequency' => 288, 'icon' => '', 'defzoom' => 11, 'defdiameter' => 0.64),
            'boundary:administrative' => array('label' => 'Administrative', 'frequency' => 413, 'icon' => 'poi_boundary_administrative', 'defdiameter' => 0.32),
            'boundary:postal_code' => array('label' => 'Postcode', 'frequency' => 413, 'icon' => 'poi_boundary_administrative', 'defdiameter' => 0.32),
            'place:town' => array('label' => 'Town', 'frequency' => 1497, 'icon' => 'poi_place_town', 'defzoom' => 14, 'defdiameter' => 0.08),
            'place:village' => array('label' => 'Village', 'frequency' => 11230, 'icon' => 'poi_place_village', 'defzoom' => 15, 'defdiameter' => 0.04),
            'place:hamlet' => array('label' => 'Hamlet', 'frequency' => 7075, 'icon' => 'poi_place_village', 'defzoom' => 15, 'defdiameter' => 0.04),
            'place:suburb' => array('label' => 'Suburb', 'frequency' => 2528, 'icon' => 'poi_place_village', 'defdiameter' => 0.04),
            'place:locality' => array('label' => 'Locality', 'frequency' => 4113, 'icon' => 'poi_place_village', 'defdiameter' => 0.02),
            'landuse:farm' => array('label' => 'Farm', 'frequency' => 1201, 'icon' => '', 'defdiameter' => 0.02),
            'place:farm' => array('label' => 'Farm', 'frequency' => 1162, 'icon' => '', 'defdiameter' => 0.02),

            'highway:motorway_junction' => array('label' => 'Motorway Junction', 'frequency' => 1126, 'icon' => '', 'simplelabel' => 'Junction'),
            'highway:motorway' => array('label' => 'Motorway', 'frequency' => 4627, 'icon' => '', 'simplelabel' => 'Road'),
            'highway:trunk' => array('label' => 'Trunk', 'frequency' => 23084, 'icon' => '', 'simplelabel' => 'Road'),
            'highway:primary' => array('label' => 'Primary', 'frequency' => 32138, 'icon' => '', 'simplelabel' => 'Road'),
            'highway:secondary' => array('label' => 'Secondary', 'frequency' => 25807, 'icon' => '', 'simplelabel' => 'Road'),
            'highway:tertiary' => array('label' => 'Tertiary', 'frequency' => 29829, 'icon' => '', 'simplelabel' => 'Road'),
            'highway:residential' => array('label' => 'Residential', 'frequency' => 361498, 'icon' => '', 'simplelabel' => 'Road'),
            'highway:unclassified' => array('label' => 'Unclassified', 'frequency' => 66441, 'icon' => '', 'simplelabel' => 'Road'),
            'highway:living_street' => array('label' => 'Living Street', 'frequency' => 710, 'icon' => '', 'simplelabel' => 'Road'),
            'highway:service' => array('label' => 'Service', 'frequency' => 9963, 'icon' => '', 'simplelabel' => 'Road'),
            'highway:track' => array('label' => 'Track', 'frequency' => 2565, 'icon' => '', 'simplelabel' => 'Road'),
            'highway:road' => array('label' => 'Road', 'frequency' => 591, 'icon' => '', 'simplelabel' => 'Road'),
            'highway:byway' => array('label' => 'Byway', 'frequency' => 346, 'icon' => '', 'simplelabel' => 'Road'),
            'highway:bridleway' => array('label' => 'Bridleway', 'frequency' => 1556, 'icon' => ''),
            'highway:cycleway' => array('label' => 'Cycleway', 'frequency' => 2419, 'icon' => ''),
            'highway:pedestrian' => array('label' => 'Pedestrian', 'frequency' => 2757, 'icon' => ''),
            'highway:footway' => array('label' => 'Footway', 'frequency' => 15008, 'icon' => ''),
            'highway:steps' => array('label' => 'Steps', 'frequency' => 444, 'icon' => '', 'simplelabel' => 'Footway'),
            'highway:motorway_link' => array('label' => 'Motorway Link', 'frequency' => 795, 'icon' => '', 'simplelabel' => 'Road'),
            'highway:trunk_link' => array('label' => 'Trunk Link', 'frequency' => 1258, 'icon' => '', 'simplelabel' => 'Road'),
            'highway:primary_link' => array('label' => 'Primary Link', 'frequency' => 313, 'icon' => '', 'simplelabel' => 'Road'),

            'landuse:industrial' => array('label' => 'Industrial', 'frequency' => 1062, 'icon' => ''),
            'landuse:residential' => array('label' => 'Residential', 'frequency' => 886, 'icon' => ''),
            'landuse:retail' => array('label' => 'Retail', 'frequency' => 754, 'icon' => ''),
            'landuse:commercial' => array('label' => 'Commercial', 'frequency' => 657, 'icon' => ''),

            'place:airport' => array('label' => 'Airport', 'frequency' => 36, 'icon' => 'transport_airport2', 'defdiameter' => 0.03),
            'aeroway:aerodrome' => array('label' => 'Aerodrome', 'frequency' => 36, 'icon' => 'transport_airport2', 'defdiameter' => 0.03),
            'aeroway' => array('label' => 'Aeroway', 'frequency' => 36, 'icon' => 'transport_airport2', 'defdiameter' => 0.03),
            'railway:station' => array('label' => 'Station', 'frequency' => 3431, 'icon' => 'transport_train_station2', 'defdiameter' => 0.01),
            'amenity:place_of_worship' => array('label' => 'Place Of Worship', 'frequency' => 9049, 'icon' => 'place_of_worship_unknown3'),
            'amenity:pub' => array('label' => 'Pub', 'frequency' => 18969, 'icon' => 'food_pub'),
            'amenity:bar' => array('label' => 'Bar', 'frequency' => 164, 'icon' => 'food_bar'),
            'amenity:university' => array('label' => 'University', 'frequency' => 607, 'icon' => 'education_university'),
            'tourism:museum' => array('label' => 'Museum', 'frequency' => 543, 'icon' => 'tourist_museum'),
            'amenity:arts_centre' => array('label' => 'Arts Centre', 'frequency' => 136, 'icon' => 'tourist_art_gallery2'),
            'tourism:zoo' => array('label' => 'Zoo', 'frequency' => 47, 'icon' => 'tourist_zoo'),
            'tourism:theme_park' => array('label' => 'Theme Park', 'frequency' => 24, 'icon' => 'poi_point_of_interest'),
            'tourism:attraction' => array('label' => 'Attraction', 'frequency' => 1463, 'icon' => 'poi_point_of_interest'),
            'leisure:golf_course' => array('label' => 'Golf Course', 'frequency' => 712, 'icon' => 'sport_golf'),
            'historic:castle' => array('label' => 'Castle', 'frequency' => 316, 'icon' => 'tourist_castle'),
            'amenity:hospital' => array('label' => 'Hospital', 'frequency' => 879, 'icon' => 'health_hospital'),
            'amenity:school' => array('label' => 'School', 'frequency' => 8192, 'icon' => 'education_school'),
            'amenity:theatre' => array('label' => 'Theatre', 'frequency' => 371, 'icon' => 'tourist_theatre'),
            'amenity:public_building' => array('label' => 'Public Building', 'frequency' => 985, 'icon' => ''),
            'amenity:library' => array('label' => 'Library', 'frequency' => 794, 'icon' => 'amenity_library'),
            'amenity:townhall' => array('label' => 'Townhall', 'frequency' => 242, 'icon' => ''),
            'amenity:community_centre' => array('label' => 'Community Centre', 'frequency' => 157, 'icon' => ''),
            'amenity:fire_station' => array('label' => 'Fire Station', 'frequency' => 221, 'icon' => 'amenity_firestation3'),
            'amenity:police' => array('label' => 'Police', 'frequency' => 334, 'icon' => 'amenity_police2'),
            'amenity:bank' => array('label' => 'Bank', 'frequency' => 1248, 'icon' => 'money_bank2'),
            'amenity:post_office' => array('label' => 'Post Office', 'frequency' => 859, 'icon' => 'amenity_post_office'),
            'leisure:park' => array('label' => 'Park', 'frequency' => 2378, 'icon' => ''),
            'amenity:park' => array('label' => 'Park', 'frequency' => 53, 'icon' => ''),
            'landuse:park' => array('label' => 'Park', 'frequency' => 50, 'icon' => ''),
            'landuse:recreation_ground' => array('label' => 'Recreation Ground', 'frequency' => 517, 'icon' => ''),
            'tourism:hotel' => array('label' => 'Hotel', 'frequency' => 2150, 'icon' => 'accommodation_hotel2'),
            'tourism:motel' => array('label' => 'Motel', 'frequency' => 43, 'icon' => ''),
            'amenity:cinema' => array('label' => 'Cinema', 'frequency' => 277, 'icon' => 'tourist_cinema'),
            'tourism:artwork' => array('label' => 'Artwork', 'frequency' => 171, 'icon' => 'tourist_art_gallery2'),
            'historic:archaeological_site' => array('label' => 'Archaeological Site', 'frequency' => 407, 'icon' => 'tourist_archaeological2'),
            'amenity:doctors' => array('label' => 'Doctors', 'frequency' => 581, 'icon' => 'health_doctors'),
            'leisure:sports_centre' => array('label' => 'Sports Centre', 'frequency' => 767, 'icon' => 'sport_leisure_centre'),
            'leisure:swimming_pool' => array('label' => 'Swimming Pool', 'frequency' => 24, 'icon' => 'sport_swimming_outdoor'),
            'shop:supermarket' => array('label' => 'Supermarket', 'frequency' => 2673, 'icon' => 'shopping_supermarket'),
            'shop:convenience' => array('label' => 'Convenience', 'frequency' => 1469, 'icon' => 'shopping_convenience'),
            'amenity:restaurant' => array('label' => 'Restaurant', 'frequency' => 3179, 'icon' => 'food_restaurant'),
            'amenity:fast_food' => array('label' => 'Fast Food', 'frequency' => 2289, 'icon' => 'food_fastfood'),
            'amenity:cafe' => array('label' => 'Cafe', 'frequency' => 1780, 'icon' => 'food_cafe'),
            'tourism:guest_house' => array('label' => 'Guest House', 'frequency' => 223, 'icon' => 'accommodation_bed_and_breakfast'),
            'amenity:pharmacy' => array('label' => 'Pharmacy', 'frequency' => 733, 'icon' => 'health_pharmacy_dispensing'),
            'amenity:fuel' => array('label' => 'Fuel', 'frequency' => 1308, 'icon' => 'transport_fuel'),
            'natural:peak' => array('label' => 'Peak', 'frequency' => 3212, 'icon' => 'poi_peak'),
            'waterway:waterfall' => array('label' => 'Waterfall', 'frequency' => 24, 'icon' => ''),
            'natural:wood' => array('label' => 'Wood', 'frequency' => 1845, 'icon' => 'landuse_coniferous_and_deciduous'),
            'natural:water' => array('label' => 'Water', 'frequency' => 1790, 'icon' => ''),
            'landuse:forest' => array('label' => 'Forest', 'frequency' => 467, 'icon' => ''),
            'landuse:cemetery' => array('label' => 'Cemetery', 'frequency' => 463, 'icon' => ''),
            'landuse:allotments' => array('label' => 'Allotments', 'frequency' => 408, 'icon' => ''),
            'landuse:farmyard' => array('label' => 'Farmyard', 'frequency' => 397, 'icon' => ''),
            'railway:rail' => array('label' => 'Rail', 'frequency' => 4894, 'icon' => ''),
            'waterway:canal' => array('label' => 'Canal', 'frequency' => 1723, 'icon' => ''),
            'waterway:river' => array('label' => 'River', 'frequency' => 4089, 'icon' => ''),
            'waterway:stream' => array('label' => 'Stream', 'frequency' => 2684, 'icon' => ''),
            'shop:bicycle' => array('label' => 'Bicycle', 'frequency' => 349, 'icon' => 'shopping_bicycle'),
            'shop:clothes' => array('label' => 'Clothes', 'frequency' => 315, 'icon' => 'shopping_clothes'),
            'shop:hairdresser' => array('label' => 'Hairdresser', 'frequency' => 312, 'icon' => 'shopping_hairdresser'),
            'shop:doityourself' => array('label' => 'Doityourself', 'frequency' => 247, 'icon' => 'shopping_diy'),
            'shop:estate_agent' => array('label' => 'Estate Agent', 'frequency' => 162, 'icon' => 'shopping_estateagent2'),
            'shop:car' => array('label' => 'Car', 'frequency' => 159, 'icon' => 'shopping_car'),
            'shop:garden_centre' => array('label' => 'Garden Centre', 'frequency' => 143, 'icon' => 'shopping_garden_centre'),
            'shop:car_repair' => array('label' => 'Car Repair', 'frequency' => 141, 'icon' => 'shopping_car_repair'),
            'shop:newsagent' => array('label' => 'Newsagent', 'frequency' => 132, 'icon' => ''),
            'shop:bakery' => array('label' => 'Bakery', 'frequency' => 129, 'icon' => 'shopping_bakery'),
            'shop:furniture' => array('label' => 'Furniture', 'frequency' => 124, 'icon' => ''),
            'shop:butcher' => array('label' => 'Butcher', 'frequency' => 105, 'icon' => 'shopping_butcher'),
            'shop:apparel' => array('label' => 'Apparel', 'frequency' => 98, 'icon' => 'shopping_clothes'),
            'shop:electronics' => array('label' => 'Electronics', 'frequency' => 96, 'icon' => ''),
            'shop:department_store' => array('label' => 'Department Store', 'frequency' => 86, 'icon' => ''),
            'shop:books' => array('label' => 'Books', 'frequency' => 85, 'icon' => ''),
            'shop:yes' => array('label' => 'Shop', 'frequency' => 68, 'icon' => ''),
            'shop:outdoor' => array('label' => 'Outdoor', 'frequency' => 67, 'icon' => ''),
            'shop:mall' => array('label' => 'Mall', 'frequency' => 63, 'icon' => ''),
            'shop:florist' => array('label' => 'Florist', 'frequency' => 61, 'icon' => ''),
            'shop:charity' => array('label' => 'Charity', 'frequency' => 60, 'icon' => ''),
            'shop:hardware' => array('label' => 'Hardware', 'frequency' => 59, 'icon' => ''),
            'shop:laundry' => array('label' => 'Laundry', 'frequency' => 51, 'icon' => 'shopping_laundrette'),
            'shop:shoes' => array('label' => 'Shoes', 'frequency' => 49, 'icon' => ''),
            'shop:beverages' => array('label' => 'Beverages', 'frequency' => 48, 'icon' => 'shopping_alcohol'),
            'shop:dry_cleaning' => array('label' => 'Dry Cleaning', 'frequency' => 46, 'icon' => ''),
            'shop:carpet' => array('label' => 'Carpet', 'frequency' => 45, 'icon' => ''),
            'shop:computer' => array('label' => 'Computer', 'frequency' => 44, 'icon' => ''),
            'shop:alcohol' => array('label' => 'Alcohol', 'frequency' => 44, 'icon' => 'shopping_alcohol'),
            'shop:optician' => array('label' => 'Optician', 'frequency' => 55, 'icon' => 'health_opticians'),
            'shop:chemist' => array('label' => 'Chemist', 'frequency' => 42, 'icon' => 'health_pharmacy'),
            'shop:gallery' => array('label' => 'Gallery', 'frequency' => 38, 'icon' => 'tourist_art_gallery2'),
            'shop:mobile_phone' => array('label' => 'Mobile Phone', 'frequency' => 37, 'icon' => ''),
            'shop:sports' => array('label' => 'Sports', 'frequency' => 37, 'icon' => ''),
            'shop:jewelry' => array('label' => 'Jewelry', 'frequency' => 32, 'icon' => 'shopping_jewelry'),
            'shop:pet' => array('label' => 'Pet', 'frequency' => 29, 'icon' => ''),
            'shop:beauty' => array('label' => 'Beauty', 'frequency' => 28, 'icon' => ''),
            'shop:stationery' => array('label' => 'Stationery', 'frequency' => 25, 'icon' => ''),
            'shop:shopping_centre' => array('label' => 'Shopping Centre', 'frequency' => 25, 'icon' => ''),
            'shop:general' => array('label' => 'General', 'frequency' => 25, 'icon' => ''),
            'shop:electrical' => array('label' => 'Electrical', 'frequency' => 25, 'icon' => ''),
            'shop:toys' => array('label' => 'Toys', 'frequency' => 23, 'icon' => ''),
            'shop:jeweller' => array('label' => 'Jeweller', 'frequency' => 23, 'icon' => ''),
            'shop:betting' => array('label' => 'Betting', 'frequency' => 23, 'icon' => ''),
            'shop:household' => array('label' => 'Household', 'frequency' => 21, 'icon' => ''),
            'shop:travel_agency' => array('label' => 'Travel Agency', 'frequency' => 21, 'icon' => ''),
            'shop:hifi' => array('label' => 'Hifi', 'frequency' => 21, 'icon' => ''),
            'amenity:shop' => array('label' => 'Shop', 'frequency' => 61, 'icon' => ''),
            'tourism:information' => array('label' => 'Information', 'frequency' => 224, 'icon' => 'amenity_information'),

            'place:house' => array('label' => 'House', 'frequency' => 2086, 'icon' => '', 'defzoom' => 18),
            'place:house_name' => array('label' => 'House', 'frequency' => 2086, 'icon' => '', 'defzoom' => 18),
            'place:house_number' => array('label' => 'House Number', 'frequency' => 2086, 'icon' => '', 'defzoom' => 18),
            'place:country_code' => array('label' => 'Country Code', 'frequency' => 2086, 'icon' => '', 'defzoom' => 18),

            //

            'leisure:pitch' => array('label' => 'Pitch', 'frequency' => 762, 'icon' => ''),
            'highway:unsurfaced' => array('label' => 'Unsurfaced', 'frequency' => 492, 'icon' => ''),
            'historic:ruins' => array('label' => 'Ruins', 'frequency' => 483, 'icon' => 'tourist_ruin'),
            'amenity:college' => array('label' => 'College', 'frequency' => 473, 'icon' => 'education_school'),
            'historic:monument' => array('label' => 'Monument', 'frequency' => 470, 'icon' => 'tourist_monument'),
            'railway:subway' => array('label' => 'Subway', 'frequency' => 385, 'icon' => ''),
            'historic:memorial' => array('label' => 'Memorial', 'frequency' => 382, 'icon' => 'tourist_monument'),
            'leisure:nature_reserve' => array('label' => 'Nature Reserve', 'frequency' => 342, 'icon' => ''),
            'leisure:common' => array('label' => 'Common', 'frequency' => 322, 'icon' => ''),
            'waterway:lock_gate' => array('label' => 'Lock Gate', 'frequency' => 321, 'icon' => ''),
            'natural:fell' => array('label' => 'Fell', 'frequency' => 308, 'icon' => ''),
            'amenity:nightclub' => array('label' => 'Nightclub', 'frequency' => 292, 'icon' => ''),
            'highway:path' => array('label' => 'Path', 'frequency' => 287, 'icon' => ''),
            'leisure:garden' => array('label' => 'Garden', 'frequency' => 285, 'icon' => ''),
            'landuse:reservoir' => array('label' => 'Reservoir', 'frequency' => 276, 'icon' => ''),
            'leisure:playground' => array('label' => 'Playground', 'frequency' => 264, 'icon' => ''),
            'leisure:stadium' => array('label' => 'Stadium', 'frequency' => 212, 'icon' => ''),
            'historic:mine' => array('label' => 'Mine', 'frequency' => 193, 'icon' => 'poi_mine'),
            'natural:cliff' => array('label' => 'Cliff', 'frequency' => 193, 'icon' => ''),
            'tourism:caravan_site' => array('label' => 'Caravan Site', 'frequency' => 183, 'icon' => 'accommodation_caravan_park'),
            'amenity:bus_station' => array('label' => 'Bus Station', 'frequency' => 181, 'icon' => 'transport_bus_station'),
            'amenity:kindergarten' => array('label' => 'Kindergarten', 'frequency' => 179, 'icon' => ''),
            'highway:construction' => array('label' => 'Construction', 'frequency' => 176, 'icon' => ''),
            'amenity:atm' => array('label' => 'Atm', 'frequency' => 172, 'icon' => 'money_atm2'),
            'amenity:emergency_phone' => array('label' => 'Emergency Phone', 'frequency' => 164, 'icon' => ''),
            'waterway:lock' => array('label' => 'Lock', 'frequency' => 146, 'icon' => ''),
            'waterway:riverbank' => array('label' => 'Riverbank', 'frequency' => 143, 'icon' => ''),
            'natural:coastline' => array('label' => 'Coastline', 'frequency' => 142, 'icon' => ''),
            'tourism:viewpoint' => array('label' => 'Viewpoint', 'frequency' => 140, 'icon' => 'tourist_view_point'),
            'tourism:hostel' => array('label' => 'Hostel', 'frequency' => 140, 'icon' => ''),
            'tourism:bed_and_breakfast' => array('label' => 'Bed And Breakfast', 'frequency' => 140, 'icon' => 'accommodation_bed_and_breakfast'),
            'railway:halt' => array('label' => 'Halt', 'frequency' => 135, 'icon' => ''),
            'railway:platform' => array('label' => 'Platform', 'frequency' => 134, 'icon' => ''),
            'railway:tram' => array('label' => 'Tram', 'frequency' => 130, 'icon' => 'transport_tram_stop'),
            'amenity:courthouse' => array('label' => 'Courthouse', 'frequency' => 129, 'icon' => 'amenity_court'),
            'amenity:recycling' => array('label' => 'Recycling', 'frequency' => 126, 'icon' => 'amenity_recycling'),
            'amenity:dentist' => array('label' => 'Dentist', 'frequency' => 124, 'icon' => 'health_dentist'),
            'natural:beach' => array('label' => 'Beach', 'frequency' => 121, 'icon' => 'tourist_beach'),
            'place:moor' => array('label' => 'Moor', 'frequency' => 118, 'icon' => ''),
            'amenity:grave_yard' => array('label' => 'Grave Yard', 'frequency' => 110, 'icon' => ''),
            'waterway:drain' => array('label' => 'Drain', 'frequency' => 108, 'icon' => ''),
            'landuse:grass' => array('label' => 'Grass', 'frequency' => 106, 'icon' => ''),
            'landuse:village_green' => array('label' => 'Village Green', 'frequency' => 106, 'icon' => ''),
            'natural:bay' => array('label' => 'Bay', 'frequency' => 102, 'icon' => ''),
            'railway:tram_stop' => array('label' => 'Tram Stop', 'frequency' => 101, 'icon' => 'transport_tram_stop'),
            'leisure:marina' => array('label' => 'Marina', 'frequency' => 98, 'icon' => ''),
            'highway:stile' => array('label' => 'Stile', 'frequency' => 97, 'icon' => ''),
            'natural:moor' => array('label' => 'Moor', 'frequency' => 95, 'icon' => ''),
            'railway:light_rail' => array('label' => 'Light Rail', 'frequency' => 91, 'icon' => ''),
            'railway:narrow_gauge' => array('label' => 'Narrow Gauge', 'frequency' => 90, 'icon' => ''),
            'natural:land' => array('label' => 'Land', 'frequency' => 86, 'icon' => ''),
            'amenity:village_hall' => array('label' => 'Village Hall', 'frequency' => 82, 'icon' => ''),
            'waterway:dock' => array('label' => 'Dock', 'frequency' => 80, 'icon' => ''),
            'amenity:veterinary' => array('label' => 'Veterinary', 'frequency' => 79, 'icon' => ''),
            'landuse:brownfield' => array('label' => 'Brownfield', 'frequency' => 77, 'icon' => ''),
            'leisure:track' => array('label' => 'Track', 'frequency' => 76, 'icon' => ''),
            'railway:historic_station' => array('label' => 'Historic Station', 'frequency' => 74, 'icon' => ''),
            'landuse:construction' => array('label' => 'Construction', 'frequency' => 72, 'icon' => ''),
            'amenity:prison' => array('label' => 'Prison', 'frequency' => 71, 'icon' => 'amenity_prison'),
            'landuse:quarry' => array('label' => 'Quarry', 'frequency' => 71, 'icon' => ''),
            'amenity:telephone' => array('label' => 'Telephone', 'frequency' => 70, 'icon' => ''),
            'highway:traffic_signals' => array('label' => 'Traffic Signals', 'frequency' => 66, 'icon' => ''),
            'natural:heath' => array('label' => 'Heath', 'frequency' => 62, 'icon' => ''),
            'historic:house' => array('label' => 'House', 'frequency' => 61, 'icon' => ''),
            'amenity:social_club' => array('label' => 'Social Club', 'frequency' => 61, 'icon' => ''),
            'landuse:military' => array('label' => 'Military', 'frequency' => 61, 'icon' => ''),
            'amenity:health_centre' => array('label' => 'Health Centre', 'frequency' => 59, 'icon' => ''),
            'historic:building' => array('label' => 'Building', 'frequency' => 58, 'icon' => ''),
            'amenity:clinic' => array('label' => 'Clinic', 'frequency' => 57, 'icon' => ''),
            'highway:services' => array('label' => 'Services', 'frequency' => 56, 'icon' => ''),
            'amenity:ferry_terminal' => array('label' => 'Ferry Terminal', 'frequency' => 55, 'icon' => ''),
            'natural:marsh' => array('label' => 'Marsh', 'frequency' => 55, 'icon' => ''),
            'natural:hill' => array('label' => 'Hill', 'frequency' => 54, 'icon' => ''),
            'highway:raceway' => array('label' => 'Raceway', 'frequency' => 53, 'icon' => ''),
            'amenity:taxi' => array('label' => 'Taxi', 'frequency' => 47, 'icon' => ''),
            'amenity:take_away' => array('label' => 'Take Away', 'frequency' => 45, 'icon' => ''),
            'amenity:car_rental' => array('label' => 'Car Rental', 'frequency' => 44, 'icon' => ''),
            'place:islet' => array('label' => 'Islet', 'frequency' => 44, 'icon' => ''),
            'amenity:nursery' => array('label' => 'Nursery', 'frequency' => 44, 'icon' => ''),
            'amenity:nursing_home' => array('label' => 'Nursing Home', 'frequency' => 43, 'icon' => ''),
            'amenity:toilets' => array('label' => 'Toilets', 'frequency' => 38, 'icon' => ''),
            'amenity:hall' => array('label' => 'Hall', 'frequency' => 38, 'icon' => ''),
            'waterway:boatyard' => array('label' => 'Boatyard', 'frequency' => 36, 'icon' => ''),
            'highway:mini_roundabout' => array('label' => 'Mini Roundabout', 'frequency' => 35, 'icon' => ''),
            'historic:manor' => array('label' => 'Manor', 'frequency' => 35, 'icon' => ''),
            'tourism:chalet' => array('label' => 'Chalet', 'frequency' => 34, 'icon' => ''),
            'amenity:bicycle_parking' => array('label' => 'Bicycle Parking', 'frequency' => 34, 'icon' => ''),
            'amenity:hotel' => array('label' => 'Hotel', 'frequency' => 34, 'icon' => ''),
            'waterway:weir' => array('label' => 'Weir', 'frequency' => 33, 'icon' => ''),
            'natural:wetland' => array('label' => 'Wetland', 'frequency' => 33, 'icon' => ''),
            'natural:cave_entrance' => array('label' => 'Cave Entrance', 'frequency' => 32, 'icon' => ''),
            'amenity:crematorium' => array('label' => 'Crematorium', 'frequency' => 31, 'icon' => ''),
            'tourism:picnic_site' => array('label' => 'Picnic Site', 'frequency' => 31, 'icon' => ''),
            'landuse:wood' => array('label' => 'Wood', 'frequency' => 30, 'icon' => ''),
            'landuse:basin' => array('label' => 'Basin', 'frequency' => 30, 'icon' => ''),
            'natural:tree' => array('label' => 'Tree', 'frequency' => 30, 'icon' => ''),
            'leisure:slipway' => array('label' => 'Slipway', 'frequency' => 29, 'icon' => ''),
            'landuse:meadow' => array('label' => 'Meadow', 'frequency' => 29, 'icon' => ''),
            'landuse:piste' => array('label' => 'Piste', 'frequency' => 28, 'icon' => ''),
            'amenity:care_home' => array('label' => 'Care Home', 'frequency' => 28, 'icon' => ''),
            'amenity:club' => array('label' => 'Club', 'frequency' => 28, 'icon' => ''),
            'amenity:medical_centre' => array('label' => 'Medical Centre', 'frequency' => 27, 'icon' => ''),
            'historic:roman_road' => array('label' => 'Roman Road', 'frequency' => 27, 'icon' => ''),
            'historic:fort' => array('label' => 'Fort', 'frequency' => 26, 'icon' => ''),
            'railway:subway_entrance' => array('label' => 'Subway Entrance', 'frequency' => 26, 'icon' => ''),
            'historic:yes' => array('label' => 'Historic', 'frequency' => 25, 'icon' => ''),
            'highway:gate' => array('label' => 'Gate', 'frequency' => 25, 'icon' => ''),
            'leisure:fishing' => array('label' => 'Fishing', 'frequency' => 24, 'icon' => ''),
            'historic:museum' => array('label' => 'Museum', 'frequency' => 24, 'icon' => ''),
            'amenity:car_wash' => array('label' => 'Car Wash', 'frequency' => 24, 'icon' => ''),
            'railway:level_crossing' => array('label' => 'Level Crossing', 'frequency' => 23, 'icon' => ''),
            'leisure:bird_hide' => array('label' => 'Bird Hide', 'frequency' => 23, 'icon' => ''),
            'natural:headland' => array('label' => 'Headland', 'frequency' => 21, 'icon' => ''),
            'tourism:apartments' => array('label' => 'Apartments', 'frequency' => 21, 'icon' => ''),
            'amenity:shopping' => array('label' => 'Shopping', 'frequency' => 21, 'icon' => ''),
            'natural:scrub' => array('label' => 'Scrub', 'frequency' => 20, 'icon' => ''),
            'natural:fen' => array('label' => 'Fen', 'frequency' => 20, 'icon' => ''),
            'building:yes' => array('label' => 'Building', 'frequency' => 200, 'icon' => ''),
            'mountain_pass:yes' => array('label' => 'Mountain Pass', 'frequency' => 200, 'icon' => ''),

            'amenity:parking' => array('label' => 'Parking', 'frequency' => 3157, 'icon' => ''),
            'highway:bus_stop' => array('label' => 'Bus Stop', 'frequency' => 35777, 'icon' => 'transport_bus_stop2'),
            'place:postcode' => array('label' => 'Postcode', 'frequency' => 27267, 'icon' => ''),
            'amenity:post_box' => array('label' => 'Post Box', 'frequency' => 9613, 'icon' => ''),

            'place:houses' => array('label' => 'Houses', 'frequency' => 85, 'icon' => ''),
            'railway:preserved' => array('label' => 'Preserved', 'frequency' => 227, 'icon' => ''),
            'waterway:derelict_canal' => array('label' => 'Derelict Canal', 'frequency' => 21, 'icon' => ''),
            'amenity:dead_pub' => array('label' => 'Dead Pub', 'frequency' => 20, 'icon' => ''),
            'railway:disused_station' => array('label' => 'Disused Station', 'frequency' => 114, 'icon' => ''),
            'railway:abandoned' => array('label' => 'Abandoned', 'frequency' => 641, 'icon' => ''),
            'railway:disused' => array('label' => 'Disused', 'frequency' => 72, 'icon' => ''),
           );
}


function getClassTypesWithImportance()
{
    $aOrders = getClassTypes();
    $i = 1;
    foreach ($aOrders as $sID => $a) {
        $aOrders[$sID]['importance'] = $i++;
    }
    return $aOrders;
}

function getResultDiameter($aResult)
{
    $aClassType = getClassTypes();

    $fDiameter = 0.0001;

    if (isset($aResult['class'])
        && isset($aResult['type'])
        && isset($aResult['admin_level'])
        && isset($aClassType[$aResult['class'].':'.$aResult['type'].':'.$aResult['admin_level']]['defdiameter'])
        && $aClassType[$aResult['class'].':'.$aResult['type'].':'.$aResult['admin_level']]['defdiameter']
    ) {
        $fDiameter = $aClassType[$aResult['class'].':'.$aResult['type'].':'.$aResult['admin_level']]['defdiameter'];
    } elseif (isset($aResult['class'])
        && isset($aResult['type'])
        && isset($aClassType[$aResult['class'].':'.$aResult['type']]['defdiameter'])
        && $aClassType[$aResult['class'].':'.$aResult['type']]['defdiameter']
    ) {
        $fDiameter = $aClassType[$aResult['class'].':'.$aResult['type']]['defdiameter'];
    }

    return $fDiameter;
}


function javascript_renderData($xVal, $iOptions = 0)
{
    $iOptions |= JSON_UNESCAPED_UNICODE;
    if (isset($_GET['pretty']) && in_array(strtolower($_GET['pretty']), array('1', 'true'))) {
        $iOptions |= JSON_PRETTY_PRINT;
    }

    $jsonout = json_encode($xVal, $iOptions);

    if (!isset($_GET['json_callback'])) {
        header("Content-Type: application/json; charset=UTF-8");
        echo $jsonout;
    } else {
        if (preg_match('/^[$_\p{L}][$_\p{L}\p{Nd}.[\]]*$/u', $_GET['json_callback'])) {
            header("Content-Type: application/javascript; charset=UTF-8");
            echo $_GET['json_callback'].'('.$jsonout.')';
        } else {
            header('HTTP/1.0 400 Bad Request');
        }
    }
}


function _debugDumpGroupedSearches($aData, $aTokens)
{
    $aWordsIDs = array();
    if ($aTokens) {
        foreach ($aTokens as $sToken => $aWords) {
            if ($aWords) {
                foreach ($aWords as $aToken) {
                    $aWordsIDs[$aToken['word_id']] =
                        '#'.$sToken.'('.$aToken['word_id'].')#';
                }
            }
        }
    }
    echo "<table border=\"1\">";
    echo "<tr><th>rank</th><th>Name Tokens</th><th>Name Not</th>";
    echo "<th>Address Tokens</th><th>Address Not</th><th>country</th><th>operator</th>";
    echo "<th>class</th><th>type</th><th>postcode</th><th>housenumber</th></tr>";
    foreach ($aData as $iRank => $aRankedSet) {
        foreach ($aRankedSet as $aRow) {
            $aRow->dumpAsHtmlTableRow($aWordsIDs);
        }
    }
    echo "</table>";
}


function getAddressDetails(&$oDB, $sLanguagePrefArraySQL, $iPlaceID, $sCountryCode = false, $housenumber = -1, $bRaw = false)
{
    $sSQL = "select *,get_name_by_language(name,$sLanguagePrefArraySQL) as localname from get_addressdata($iPlaceID, $housenumber)";
    if (!$bRaw) $sSQL .= " WHERE isaddress OR type = 'country_code'";
    $sSQL .= " order by rank_address desc,isaddress desc";

    $aAddressLines = chksql($oDB->getAll($sSQL));
    if ($bRaw) return $aAddressLines;
    //echo "<pre>";
    //var_dump($aAddressLines);
    $aAddress = array();
    $aFallback = array();
    $aClassType = getClassTypes();
    foreach ($aAddressLines as $aLine) {
        $bFallback = false;
        $aTypeLabel = false;
        if (isset($aClassType[$aLine['class'].':'.$aLine['type'].':'.$aLine['admin_level']])) {
            $aTypeLabel = $aClassType[$aLine['class'].':'.$aLine['type'].':'.$aLine['admin_level']];
        } elseif (isset($aClassType[$aLine['class'].':'.$aLine['type']])) {
            $aTypeLabel = $aClassType[$aLine['class'].':'.$aLine['type']];
        } elseif (isset($aClassType['boundary:administrative:'.((int)($aLine['rank_address']/2))])) {
            $aTypeLabel = $aClassType['boundary:administrative:'.((int)($aLine['rank_address']/2))];
            $bFallback = true;
        } else {
            $aTypeLabel = array('simplelabel' => 'address'.$aLine['rank_address']);
            $bFallback = true;
        }
        if ($aTypeLabel && ((isset($aLine['localname']) && $aLine['localname']) || (isset($aLine['housenumber']) && $aLine['housenumber']))) {
            $sTypeLabel = strtolower(isset($aTypeLabel['simplelabel'])?$aTypeLabel['simplelabel']:$aTypeLabel['label']);
            $sTypeLabel = str_replace(' ', '_', $sTypeLabel);
            if (!isset($aAddress[$sTypeLabel]) || (isset($aFallback[$sTypeLabel]) && $aFallback[$sTypeLabel]) || $aLine['class'] == 'place') {
                $aAddress[$sTypeLabel] = $aLine['localname']?$aLine['localname']:$aLine['housenumber'];
            }
            $aFallback[$sTypeLabel] = $bFallback;
        }
    }
    return $aAddress;
}


function addQuotes($s)
{
    return "'".$s."'";
}

function parseLatLon($sQuery)
{
    $sFound    = null;
    $fQueryLat = null;
    $fQueryLon = null;

    if (preg_match('/\\s*([NS])[ ]+([0-9]+[0-9.]*)[° ]+([0-9.]+)?[′\']*[, ]+([EW])[ ]+([0-9]+)[° ]+([0-9]+[0-9.]*)[′\']*\\s*/', $sQuery, $aData)) {
        /*               1         2                   3                    4         5            6
         * degrees decimal minutes
         * N 40 26.767, W 79 58.933
         * N 40°26.767′, W 79°58.933′
         */
        $sFound    = $aData[0];
        $fQueryLat = ($aData[1]=='N'?1:-1) * ($aData[2] + $aData[3]/60);
        $fQueryLon = ($aData[4]=='E'?1:-1) * ($aData[5] + $aData[6]/60);
    } elseif (preg_match('/\\s*([0-9]+)[° ]+([0-9]+[0-9.]*)?[′\']*[ ]+([NS])[, ]+([0-9]+)[° ]+([0-9]+[0-9.]*)?[′\' ]+([EW])\\s*/', $sQuery, $aData)) {
        /*                     1            2                         3          4            5                      6
         * degrees decimal minutes
         * 40 26.767 N, 79 58.933 W
         * 40° 26.767′ N 79° 58.933′ W
         */
        $sFound    = $aData[0];
        $fQueryLat = ($aData[3]=='N'?1:-1) * ($aData[1] + $aData[2]/60);
        $fQueryLon = ($aData[6]=='E'?1:-1) * ($aData[4] + $aData[5]/60);
    } elseif (preg_match('/\\s*([NS])[ ]([0-9]+)[° ]+([0-9]+)[′\' ]+([0-9]+)[″"]*[, ]+([EW])[ ]([0-9]+)[° ]+([0-9]+)[′\' ]+([0-9]+)[″"]*\\s*/', $sQuery, $aData)) {
        /*                     1        2            3              4                 5        6            7              8
         * degrees decimal seconds
         * N 40 26 46 W 79 58 56
         * N 40° 26′ 46″, W 79° 58′ 56″
         */
        $sFound    = $aData[0];
        $fQueryLat = ($aData[1]=='N'?1:-1) * ($aData[2] + $aData[3]/60 + $aData[4]/3600);
        $fQueryLon = ($aData[5]=='E'?1:-1) * ($aData[6] + $aData[7]/60 + $aData[8]/3600);
    } elseif (preg_match('/\\s*([0-9]+)[° ]+([0-9]+)[′\' ]+([0-9]+)[″" ]+([NS])[, ]+([0-9]+)[° ]+([0-9]+)[′\' ]+([0-9]+)[″" ]+([EW])\\s*/', $sQuery, $aData)) {
        /*                     1            2              3             4          5            6              7             8
         * degrees decimal seconds
         * 40 26 46 N 79 58 56 W
         * 40° 26′ 46″ N, 79° 58′ 56″ W
         */
        $sFound    = $aData[0];
        $fQueryLat = ($aData[4]=='N'?1:-1) * ($aData[1] + $aData[2]/60 + $aData[3]/3600);
        $fQueryLon = ($aData[8]=='E'?1:-1) * ($aData[5] + $aData[6]/60 + $aData[7]/3600);
    } elseif (preg_match('/\\s*([NS])[ ]([0-9]+[0-9]*\\.[0-9]+)[°]*[, ]+([EW])[ ]([0-9]+[0-9]*\\.[0-9]+)[°]*\\s*/', $sQuery, $aData)) {
        /*                     1        2                               3        4
         * degrees decimal
         * N 40.446° W 79.982°
         */
        $sFound    = $aData[0];
        $fQueryLat = ($aData[1]=='N'?1:-1) * ($aData[2]);
        $fQueryLon = ($aData[3]=='E'?1:-1) * ($aData[4]);
    } elseif (preg_match('/\\s*([0-9]+[0-9]*\\.[0-9]+)[° ]+([NS])[, ]+([0-9]+[0-9]*\\.[0-9]+)[° ]+([EW])\\s*/', $sQuery, $aData)) {
        /*                     1                           2          3                           4
         * degrees decimal
         * 40.446° N 79.982° W
         */
        $sFound    = $aData[0];
        $fQueryLat = ($aData[2]=='N'?1:-1) * ($aData[1]);
        $fQueryLon = ($aData[4]=='E'?1:-1) * ($aData[3]);
    } elseif (preg_match('/(\\s*\\[|^\\s*|\\s*)(-?[0-9]+[0-9]*\\.[0-9]+)[, ]+(-?[0-9]+[0-9]*\\.[0-9]+)(\\]\\s*|\\s*$|\\s*)/', $sQuery, $aData)) {
        /*                 1                   2                             3                        4
         * degrees decimal
         * 12.34, 56.78
         * 12.34 56.78
         * [12.456,-78.90]
         */
        $sFound    = $aData[0];
        $fQueryLat = $aData[2];
        $fQueryLon = $aData[3];
    } else {
        return false;
    }

    return array($sFound, $fQueryLat, $fQueryLon);
}


function geometryText2Points($geometry_as_text, $fRadius)
{
    $aPolyPoints = null;
    if (preg_match('#POLYGON\\(\\(([- 0-9.,]+)#', $geometry_as_text, $aMatch)) {
        //
        preg_match_all('/(-?[0-9.]+) (-?[0-9.]+)/', $aMatch[1], $aPolyPoints, PREG_SET_ORDER);
        //
    } elseif (preg_match('#LINESTRING\\(([- 0-9.,]+)#', $geometry_as_text, $aMatch)) {
        //
        preg_match_all('/(-?[0-9.]+) (-?[0-9.]+)/', $aMatch[1], $aPolyPoints, PREG_SET_ORDER);
        //
    } elseif (preg_match('#MULTIPOLYGON\\(\\(\\(([- 0-9.,]+)#', $geometry_as_text, $aMatch)) {
        //
        preg_match_all('/(-?[0-9.]+) (-?[0-9.]+)/', $aMatch[1], $aPolyPoints, PREG_SET_ORDER);
        //
    } elseif (preg_match('#POINT\\((-?[0-9.]+) (-?[0-9.]+)\\)#', $geometry_as_text, $aMatch)) {
        //
        $aPolyPoints = createPointsAroundCenter($aMatch[1], $aMatch[2], $fRadius);
        //
    }

    if (isset($aPolyPoints)) {
        $aResultPoints = array();
        foreach ($aPolyPoints as $aPoint) {
            $aResultPoints[] = array($aPoint[1], $aPoint[2]);
        }
        return $aResultPoints;
    }

    return;
}

function createPointsAroundCenter($fLon, $fLat, $fRadius)
{
    $iSteps = max(8, min(100, ($fRadius * 40000)^2));
    $fStepSize = (2*pi())/$iSteps;
    $aPolyPoints = array();
    for ($f = 0; $f < 2*pi(); $f += $fStepSize) {
        $aPolyPoints[] = array('', $fLon+($fRadius*sin($f)), $fLat+($fRadius*cos($f)) );
    }
    return $aPolyPoints;
}