Login   Register  
PHP Classes
elePHPant
Icontem

File: quadtree.php

Recommend this page to a friend!
Stumble It! Stumble It! Bookmark in del.icio.us Bookmark in del.icio.us
  Classes of Chi Hoang  >  Hilbert curve  >  quadtree.php  >  Download  
File: quadtree.php
Role: Example script
Content type: text/plain
Description: compute google maps quadtree
Class: Hilbert curve
Generate points of an Hilbert curve
Author: By
Last change: beautify code
Date: 4 years ago
Size: 3,191 bytes
 

Contents

Class file image Download
<?php
/***************************************************************
*      Hilbert curve
*      Version 0.2
*      Copyright (c) 2010 Chi Hoang (info@chihoang.de)
*      All rights reserved
*
*      http://www.chihoang.de
*
*      Permission is hereby granted, free of charge, to any person obtaining a
*    copy of this software and associated documentation files (the "Software"),
*    to deal in the Software without restriction, including without limitation
*    the rights to use, copy, modify, merge, publish, distribute, sublicense,
*    and/or sell copies of the Software, and to permit persons to whom the
*    Software is furnished to do so, subject to the following conditions:
*
*      Free for non-commercial use
*
*    The above copyright notice and this permission notice shall be included
*    in all copies or substantial portions of the Software.
*    
*    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
*    OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
*    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
*    THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
*    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
*    FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
*    DEALINGS IN THE SOFTWARE.
*
***************************************************************/
require_once("hilbert.php");
require_once(
"GlobalMapTiles.php");

define('MAXZOOM'21);

class 
db {
    var 
$connid;
    var 
$erg;

    function 
db ($host,$user,$passwort) {
        if(!
$this->connid mysql_connect($host$user$passwort)) {
            echo 
"Fehler beim Verbinden...";
        }
        return 
$this->connid;
    }

    function 
select_db($db) {
        if (!
mysql_select_db($db$this->connid)) {
            echo 
"Fehler beim Auswaehlen der DB...";
        }
    }

    function 
sql ($sql) {
        if (!
$this->erg mysql_query($sql$this->connid)) {
            echo 
"Fehler beim Senden der Abfrage...";
        }
        return 
$this->erg;
    }
}

class 
quadtree {

    function 
loop() {
        
        
$tree = new hilbert();
        
$mercator = new GlobalMercator();

        
$connection = new db("localhost""root""typo3" );
        
$connection->select_db("amici");
        
        
$q "SELECT uid, plz, laengengrad, breitengrad FROM tx_chhaendlersuche_plz";
        
        
$res $connection->sql($q);                                                                                                                                     
        
        while (
$row mysql_fetch_assoc($res)) {
            
            list(
$lng$lat) = array ($row['laengengrad'], $row['breitengrad']);

            list(
$mx$my) = $mercator->LatLonToMeters($lat$lng);
            list(
$tx$ty) = $mercator->MetersToTile($mx$myMAXZOOM);
            list(
$tx$ty) = array ($tx, ((<< MAXZOOM) - 1) - $ty );
            
            
//~ $string = $mercator->LatLonToQuadTree($lat, $lng, MAXZOOM);
            //~ $string = $mercator->QuadTree($tx, $ty, MAXZOOM);
            
$string $tree->point_to_quadtree$tx$typow(25) );
            
//~ $string = $tree->point_to_quadtree( $tx, $ty, 5, "moore" );
            
            
echo "$tx$ty ".$row["uid"].": $string\n";
            
            
mysql_query("UPDATE tx_chhaendlersuche_plz SET quadtree=".$string." WHERE uid=".$row['uid']); 
        }
    }
}

$main = new quadtree();
$main->loop();

?>