htdocs/geoloc/globe.php

   1 <?php
   2 /***************************************************************************
   3  *  Copyright (C) 2003-2005 Polytechnique.org                              *
   4  *  http://opensource.polytechnique.org/                                   *
   5  *                                                                         *
   6  *  This program is free software; you can redistribute it and/or modify   *
   7  *  it under the terms of the GNU General Public License as published by   *
   8  *  the Free Software Foundation; either version 2 of the License, or      *
   9  *  (at your option) any later version.                                    *
  10  *                                                                         *
  11  *  This program is distributed in the hope that it will be useful,        *
  12  *  but WITHOUT ANY WARRANTY; without even the implied warranty of         *
  13  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the          *
  14  *  GNU General Public License for more details.                           *
  15  *                                                                         *
  16  *  You should have received a copy of the GNU General Public License      *
  17  *  along with this program; if not, write to the Free Software            *
  18  *  Foundation, Inc.,                                                      *
  19  *  59 Temple Place, Suite 330, Boston, MA  02111-1307  USA                *
  20  ***************************************************************************/
  21
  22 require_once('xorg.inc.php');
  23 new_nonhtml_page('', AUTH_COOKIE);
  24 header("Content-type: image/png");
  25
  26 $res = $globals->xdb->iterRow('SELECT lat, lon FROM geoloc_city AS gc LEFT JOIN adresses AS a ON(gc.id = a.cityid) WHERE a.cityid IS NOT NULL GROUP BY gc.id');
  27
  28 $img = imageCreateFromPng("../images/globe.png");
  29
  30 $coul = imagecolorallocate($img, 0, 0, 0);
  31
  32 while ($a = $res->next()) {
  33     $x = floor(($a[1]/100000 + 180 )/360*600);
  34     $y = floor((90 - $a[0]/100000)/180*300);
  35     imagefilledrectangle($img, $x, $y, $x+1, $y+1, $coul);
  36 }
  37
  38 imagePng($img);
  39 imagedestroy($img);
  40 // vim:set et sws=4 sw=4 sts=4:
  41 ?>