galaxy.inc.php 24.9 KB
Newer Older
Feu's avatar
Feu committed
1 2
<?php

Feu's avatar
test  
Feu committed
3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27
/* Copyright 2007
 *
 * - Julien Etelain < julien at pmad dot net >
 *
 * "AE Recherche & Developpement" : Galaxy
 *
 * Ce fichier fait partie du site de l'Association des étudiants
 * de l'UTBM, http://ae.utbm.fr.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License as
 * published by the Free Software Foundation; either version 2 of the
 * License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
 * 02111-1307, USA.
 */
 
Feu's avatar
Feu committed
28 29 30 31 32 33 34 35 36

class galaxy
{
  var $db;
  var $dbrw;
  
  var $width;
  var $height;
  
Feu's avatar
test  
Feu committed
37
  var $done_pre_cycle;
Feu's avatar
Feu committed
38 39 40 41 42
  
  function galaxy ( &$db, &$dbrw )
  {
    $this->db = $db;
    $this->dbrw = $dbrw;
Feu's avatar
test  
Feu committed
43
    $this->done_pre_cycle=false;
Feu's avatar
Feu committed
44 45
  }  
  
Feu's avatar
test  
Feu committed
46 47 48 49
  /**
   * Vérifie que des données puevent être montrés aux utilisateurs.
   * Pour cela vérifie qu'il existe des éléments avec des coordonnées en pixels.
   */
Feu's avatar
Feu committed
50 51 52 53 54 55 56
  function is_ready_public()
  {
    $req = new requete($this->db,"SELECT * FROM galaxy_star WHERE rx_star IS NOT NULL AND ry_star IS NOT NULL LIMIT 1");
    if ( $req->lines != 1 )
      return false;
    return true;
  }
Feu's avatar
fix  
Feu committed
57

Feu's avatar
Feu committed
58
  
Feu's avatar
fix  
Feu committed
59
  function scores ()
Feu's avatar
Feu committed
60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125
  {
    $liens = array();
    
    // 1- Cacul du score
    
    // a- Les photos : 1pt / photo ensemble
    $req = new requete($this->db, "SELECT COUNT( * ) as c, p1.id_utilisateur as u1, p2.id_utilisateur as u2 ".
    "FROM `sas_personnes_photos` AS `p1` ".
    "JOIN `sas_personnes_photos` AS `p2` ON ( p1.id_photo = p2.id_photo ".
    "AND p1.id_utilisateur != p2.id_utilisateur ) ".
    "GROUP BY p1.id_utilisateur, p2.id_utilisateur");
    
    while ( $row = $req->get_row() )
    {
      $a = min($row['u1'],$row['u2']);
      $b = max($row['u1'],$row['u2']);
      
      $liens[$a][$b] = $row['c'];
    }  
    
    // b- Parrainage : 15pt / relation parrain-fillot
    $req = new requete($this->db, "SELECT id_utilisateur as u1, id_utilisateur_fillot as u2 ".
    "FROM `parrains` ".
    "GROUP BY id_utilisateur, id_utilisateur_fillot");
    while ( $row = $req->get_row() )
    {
      $a = min($row['u1'],$row['u2']);
      $b = max($row['u1'],$row['u2']);    
      
      if ( isset($liens[$a][$b]) )
        $liens[$a][$b] += 15;
      else
        $liens[$a][$b] = 15;
    }  
    
    // c- associations et clubs : 1pt / 75 jours ensemble / assos
    $req = new requete($this->db,"SELECT a.id_utilisateur as u1,b.id_utilisateur as u2,
  SUM(DATEDIFF(LEAST(COALESCE(a.date_fin,NOW()),COALESCE(b.date_fin,NOW())),GREATEST(a.date_debut,b.date_debut))) AS together
  FROM asso_membre AS a
  JOIN asso_membre AS b ON
  ( 
  a.id_utilisateur < b.id_utilisateur  
  AND a.id_asso = b.id_asso
  AND DATEDIFF(LEAST(COALESCE(a.date_fin,NOW()),COALESCE(b.date_fin,NOW())),GREATEST(a.date_debut,b.date_debut)) > 74
  )
  GROUP BY a.id_utilisateur,b.id_utilisateur
  ORDER BY a.id_utilisateur,b.id_utilisateur");
  
    while ( $row = $req->get_row() )
    {
      $a = min($row['u1'],$row['u2']);
      $b = max($row['u1'],$row['u2']);    
      
      if ( isset($liens[$a][$b]) )
        $liens[$a][$b] += round($row['together']/75);
      else
        $liens[$a][$b] += round($row['together']/75);
    }    
    
    // 2- On vire les liens pas significatifs
    foreach ( $liens as $a => $data )
    {
      foreach ( $data as $b => $score )
        if ( $score < 10 )
          unset($liens[$a][$b]);
    }
Feu's avatar
fix  
Feu committed
126 127 128 129 130 131 132 133 134 135 136

    return $liens;
  }
  
  
  /**
   * Initialise une nouvelle galaxy, le "big bang" en quelque sorte
   */
  function init ( )
  {
    new requete($this->dbrw,"TRUNCATE `galaxy_link`");
    new requete($this->dbrw,"TRUNCATE `galaxy_star`");
Feu's avatar
Feu committed
137
    
Feu's avatar
fix  
Feu committed
138 139
    $liens = $this->scores();
        
Feu's avatar
Feu committed
140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176
    // 3- On crée les peronnes requises
    $stars = array();
    foreach ( $liens as $a => $data )
    {
      if ( !isset($stars[$a]) )
        $stars[$a] = $a;
      
      foreach ( $data as $b => $score )
        if ( !isset($stars[$b]) )
          $stars[$b] = $b;
    }
    
    $gx=0;
    $gy=0;
    
    $width = floor(sqrt(count($stars)));
    
    foreach ( $stars as $id )
    {
      new insert($this->dbrw,"galaxy_star",array( "id_star"=>$id, "x_star" => $gx, "y_star" => $gy ));
      $gx++;
      if ( $gx > $width )
      {
        $gx=0;
        $gy++;
      }
    } 
  
    // 4- On crée les liens
    foreach ( $liens as $a => $data )
      foreach ( $data as $b => $score )
        new insert($this->dbrw,"galaxy_link",array( "id_star_a"=>$a, "id_star_b"=>$b, "tense_link" => $score ));
      
    //fixe_star
    new requete($this->dbrw, "UPDATE galaxy_star SET max_tense_star = ( SELECT MAX(tense_link) FROM galaxy_link WHERE id_star_a=id_star OR id_star_b=id_star )");
    new requete($this->dbrw, "UPDATE galaxy_star SET sum_tense_star = ( SELECT SUM(tense_link) FROM galaxy_link WHERE id_star_a=id_star OR id_star_b=id_star )");
    new requete($this->dbrw, "UPDATE galaxy_star SET nblinks_star = ( SELECT COUNT(*) FROM galaxy_link WHERE id_star_a=id_star OR id_star_b=id_star )");
Feu's avatar
test  
Feu committed
177
    new requete($this->dbrw, "UPDATE galaxy_link SET max_tense_stars_link=( SELECT AVG(max_tense_star) FROM galaxy_star WHERE id_star=id_star_a OR id_star=id_star_b )");
Feu's avatar
Feu committed
178
    
Feu's avatar
test  
Feu committed
179
    new requete($this->dbrw, "UPDATE galaxy_link SET ideal_length_link=0.25+((1-(tense_link/max_tense_stars_link))*30)");
Feu's avatar
Feu committed
180 181
    new requete($this->dbrw, "DELETE FROM galaxy_star WHERE nblinks_star = 0");
  
Feu's avatar
fix  
Feu committed
182
  }
Feu's avatar
Feu committed
183
  
Feu's avatar
fix  
Feu committed
184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254
  function update()
  {
    $liens = $this->scores();
    
    $stars = array();
    foreach ( $liens as $a => $data )
    {
      if ( !isset($stars[$a]) )
        $stars[$a] = $a;
      
      foreach ( $data as $b => $score )
        if ( !isset($stars[$b]) )
          $stars[$b] = $b;
    }
    
    $prev_stars = array();
    $prev_liens = array();
    
    $req = new requete($this->dbrw, "SELECT id_star FROM galaxy_star");
    
    while ( list($id) = $req->get_row() )
      $prev_stars[$id] = $id;
    
    $req = new requete($this->dbrw, "SELECT id_star_a, id_star_b, tense_link FROM galaxy_link");
    
    while ( list($a,$b,$c) = $req->get_row() )
      $prev_liens[$a][$b] = $c;
      
    // enlève les anciennes étoiles
    foreach ( $prev_stars as $id )
      if ( !isset($stars[$id]) )
        new delete($this->dbrw,"galaxy_star",array( "id_star"=>$id) );
    
    // enlève les anciens liens
    foreach ( $prev_liens as $a => $data )
      foreach ( $data as $b => $score )
        if (!isset($liens[$a][$b]) )
          new delete($this->dbrw,"galaxy_link",array( "id_star_a"=>$a, "id_star_b"=>$b));
          
    list($x1,$y1,$x2,$y2) = $this->limits();
    $cw = max($x2-$x1,$y2-$y1);
    
    // ajoute les nouvelles étoiles
    foreach ( $stars as $id )
      if ( !isset($prev_stars[$id]) )
      {
        list($nx,$ny) = $this->find_low_density_point($x1,$y1,$cw);
        new insert($this->dbrw,"galaxy_star",array( "id_star"=>$id, "x_star" => $nx, "y_star" => $ny ));
      } 
        
    // ajoute les nouveaux liens  
    foreach ( $liens as $a => $data )
      foreach ( $data as $b => $score )
        if (!isset($prev_liens[$a][$b]) )
          new insert($this->dbrw,"galaxy_link",array( "id_star_a"=>$a, "id_star_b"=>$b, "tense_link" => $score ));
        
    // met à jour les anciens liens
    foreach ( $liens as $a => $data )
      foreach ( $data as $b => $score )
        if ( isset($prev_liens[$a][$b]) && $prev_liens[$a][$b] != $score )
          new update($this->dbrw,"galaxy_link",array("tense_link"=>$score),array("id_star_a"=>$a,"id_star_b"=>$b));
    
    // met à jour les champs calculés  
    new requete($this->dbrw, "UPDATE galaxy_star SET max_tense_star = ( SELECT MAX(tense_link) FROM galaxy_link WHERE id_star_a=id_star OR id_star_b=id_star )");
    new requete($this->dbrw, "UPDATE galaxy_star SET sum_tense_star = ( SELECT SUM(tense_link) FROM galaxy_link WHERE id_star_a=id_star OR id_star_b=id_star )");
    new requete($this->dbrw, "UPDATE galaxy_star SET nblinks_star = ( SELECT COUNT(*) FROM galaxy_link WHERE id_star_a=id_star OR id_star_b=id_star )");
    new requete($this->dbrw, "UPDATE galaxy_link SET max_tense_stars_link=( SELECT AVG(max_tense_star) FROM galaxy_star WHERE id_star=id_star_a OR id_star=id_star_b )");
    
    new requete($this->dbrw, "UPDATE galaxy_link SET ideal_length_link=0.25+((1-(tense_link/max_tense_stars_link))*30)");
    new requete($this->dbrw, "DELETE FROM galaxy_star WHERE nblinks_star = 0");
      
Feu's avatar
Feu committed
255 256
  }
  
Feu's avatar
fix  
Feu committed
257 258
  
  
Feu's avatar
test  
Feu committed
259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276
  /**
   * Préalable à une série de cycles.
   * Efface les coordonnées en pixels de tous les éléments.
   */
  function pre_cycle ()
  {
    // s'assure que is_ready_public() renverra false pendant les calculs
    // se débloquera après un appel à pre_render() (causé par render() ou mini_render())
    new requete($this->dbrw,"UPDATE `galaxy_star` SET rx_star = NULL, ry_star = NULL");
    $this->done_pre_cycle=true;
  }
  
  /**
   * Cycle.
   * Produit les mouvements des objets par le calculs des contraintes aux quels ils sont soumis.
   * Attention: Il n'y a pas de notion d'accélération ou d'intertie.
   * Provoque un appel de pre_cycle() s'il n'a pas eu lieu.
   */
Feu's avatar
Feu committed
277 278
  function cycle ( $detectcollision=false )
  {
Feu's avatar
test  
Feu committed
279 280
    if ( !$this->done_pre_cycle )
      $this->pre_cycle();
Feu's avatar
test  
Feu committed
281 282 283 284 285 286 287 288 289 290
    
    new requete($this->dbrw,"UPDATE galaxy_link, galaxy_star AS a, galaxy_star AS b SET ".
    "vx_link = b.x_star-a.x_star, ".
    "vy_link = b.y_star-a.y_star  ".
    "WHERE a.id_star = galaxy_link.id_star_a AND b.id_star = galaxy_link.id_star_b");
    new requete($this->dbrw,"UPDATE galaxy_link SET length_link = SQRT(POW(vx_link,2)+POW(vy_link,2))");
    new requete($this->dbrw,"UPDATE galaxy_link SET dx_link=vx_link/length_link, dy_link=vy_link/length_link WHERE length_link != 0");
    new requete($this->dbrw,"UPDATE galaxy_link SET dx_link=0, dy_link=0 WHERE length_link = ideal_length_link");
    new requete($this->dbrw,"UPDATE galaxy_link SET dx_link=RAND(), dy_link=RAND() WHERE length_link != ideal_length_link AND dx_link=0 AND dy_link=0");
    
Feu's avatar
test  
Feu committed
291
    $req = new requete($this->db,"SELECT MAX(length_link/ideal_length_link),AVG(length_link/ideal_length_link) FROM galaxy_link");
Feu's avatar
test  
Feu committed
292
    
Feu's avatar
test  
Feu committed
293
    $reducer=1000;
Feu's avatar
test  
Feu committed
294
    
Feu's avatar
test  
Feu committed
295 296
    if ( $req->lines > 0 )
    {
Feu's avatar
test  
Feu committed
297
      list($max,$avg) = $req->get_row();
Feu's avatar
test  
Feu committed
298 299 300 301 302
      if ( $max > 1000 )
      {
        echo "failed due to expension";
        exit();
      }
Feu's avatar
test  
Feu committed
303
      if ( !is_null($max) && $max > 0 )
Feu's avatar
test  
Feu committed
304
        $reducer = max(25,round($max)*3);  
Feu's avatar
test  
Feu committed
305
      echo $max." ".$avg." (".$reducer.") - ";
Feu's avatar
test  
Feu committed
306
    }    
Feu's avatar
test  
Feu committed
307 308
    
    new requete($this->dbrw,"UPDATE galaxy_link, galaxy_star AS a, galaxy_star AS b SET  ".
Feu's avatar
test  
Feu committed
309 310 311
    "delta_link_a=(length_link-ideal_length_link)/ideal_length_link/$reducer, ".
    "delta_link_b=(length_link-ideal_length_link)/ideal_length_link/$reducer*-1 ".
    "WHERE a.id_star = galaxy_link.id_star_a AND b.id_star = galaxy_link.id_star_b");
Feu's avatar
test  
Feu committed
312
    
Feu's avatar
Feu committed
313 314 315 316 317 318 319 320 321 322 323 324
    new requete($this->dbrw,"UPDATE galaxy_star SET ".
    "dx_star = COALESCE(( SELECT SUM( delta_link_a * dx_link ) FROM galaxy_link WHERE id_star_a = id_star ),0) + ".
      "COALESCE((SELECT SUM( delta_link_b * dx_link ) FROM galaxy_link WHERE id_star_b = id_star ),0), ".
    "dy_star = COALESCE(( SELECT SUM( delta_link_a * dy_link ) FROM galaxy_link WHERE id_star_a = id_star ),0) + ".
      "COALESCE((SELECT SUM( delta_link_b * dy_link ) FROM galaxy_link WHERE id_star_b = id_star ),0) WHERE fixe_star != 1");
    if ( $detectcollision )
    {
      new requete($this->dbrw,"UPDATE galaxy_star AS a, galaxy_star AS b SET a.dx_star=0, a.dy_star=0, b.dx_star=0, b.dy_star=0 WHERE a.id_star != b.id_star AND POW(a.x_star+a.dx_star-b.x_star-b.dx_star,2)+POW(a.y_star+a.dy_star-b.y_star-b.dy_star,2) < 0.05");
      new requete($this->dbrw,"UPDATE galaxy_star AS a, galaxy_star AS b SET a.dx_star=0, a.dy_star=0, b.dx_star=0, b.dy_star=0 WHERE a.id_star != b.id_star AND POW(a.x_star+a.dx_star-b.x_star-b.dx_star,2)+POW(a.y_star+a.dy_star-b.y_star-b.dy_star,2) < 0.05");
    }
    new requete($this->dbrw,"UPDATE galaxy_star SET x_star = x_star + dx_star, y_star = y_star + dy_star WHERE dx_star != 0 OR dy_star != 0 AND fixe_star != 1");
    
Feu's avatar
test  
Feu committed
325 326 327
    
  }
  
Feu's avatar
test  
Feu committed
328 329 330
  /**
   * Provoque un deplacement aleatoir de tous les éléments (+/- 5 sur x et y)
   */
Feu's avatar
test  
Feu committed
331 332 333
  function rand()
  {
    new requete($this->dbrw, "UPDATE `galaxy_star` SET x_star = x_star+5-( RAND( ) *10 ), y_star = y_star+5-( RAND( ) *10)");
Feu's avatar
Feu committed
334 335
  }
  
Feu's avatar
test  
Feu committed
336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356
  /**
   * Optimise le placement de certains éléments en les renvoyant dans des zones peu denses
   */
  function optimize()
  {
    
    $req = new requete($this->db,
    "SELECT a.id_star, b.x_star, b.y_star, l.ideal_length_link 
     FROM galaxy_star AS a
     INNER JOIN galaxy_link AS l ON ( l.id_star_a = a.id_star )
     INNER JOIN galaxy_star AS b ON ( l.id_star_b = b.id_star )
     WHERE a.nblinks_star=1 AND b.nblinks_star > 1
     UNION
     SELECT b.id_star, a.x_star, a.y_star, l.ideal_length_link
     FROM galaxy_star AS b
     INNER JOIN galaxy_link AS l ON ( l.id_star_b = b.id_star )
     INNER JOIN galaxy_star AS a ON ( l.id_star_a = a.id_star )
     WHERE b.nblinks_star=1 AND a.nblinks_star > 1");
     
    while ( list($id,$cx,$cy,$l) = $req->get_row() )
    {
Feu's avatar
fix  
Feu committed
357
      list($nx,$ny) = $this->find_low_density_point($cx-$l,$cy-$l,$l*2,$id); 
Feu's avatar
test  
Feu committed
358 359 360 361 362 363 364
      $nx = sprintf("%.f",$nx);
      $ny = sprintf("%.f",$ny);
      //echo "MOVE $id to ($nx, $ny)<br/>\n";
      new requete ( $this->dbrw, "UPDATE galaxy_star set x_star=$nx, y_star=$ny WHERE id_star=$id");
    }
      
    list($x1,$y1,$x2,$y2) = $this->limits();
Feu's avatar
fix  
Feu committed
365
    $cw = max($x2-$x1,$y2-$y1);
Feu's avatar
test  
Feu committed
366 367 368 369 370 371 372 373 374 375 376 377 378
    
    $req = new requete($this->db,
    "SELECT a.id_star, b.id_star, b.x_star, b.y_star 
     FROM galaxy_star AS a
     INNER JOIN galaxy_link AS l ON ( l.id_star_a = a.id_star )
     INNER JOIN galaxy_star AS b ON ( l.id_star_b = b.id_star )
     WHERE a.nblinks_star=1 AND b.nblinks_star=1");
     
    while ( list($ida,$idb,$x,$y) = $req->get_row() )
    {
      $d = $this->get_density ( $x-1, $y-1, $x+1, $y+1, "$ida,$idb" );
      if ( $d > 5 )
      {
Feu's avatar
fix  
Feu committed
379
        list($nx,$ny) = $this->find_low_density_point($x1,$y1,$cw,"$ida,$idb"); 
Feu's avatar
test  
Feu committed
380 381 382 383 384 385 386
        //echo "MOVE $ida,$idb to ($nx, $ny)<br/>\n";
        new requete ( $this->dbrw, "UPDATE galaxy_star set x_star=$nx, y_star=$ny WHERE id_star=$ida OR id_star=$idb");
      }
    }
    
  }
  
Feu's avatar
Feu committed
387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403
  function star_color ( $img, $i )
  {
    if ( $i > 800 )
      return imagecolorallocate($img, 255, 255, 255);
      
    if ( $i > 700 )
      return imagecolorallocate($img, (($i-700)*255/100), (($i-700)*255/100), 255);      
      
    if ( $i > 400 )
      return imagecolorallocate($img, 255 -(($i-400)*255/300), 255 -(($i-400)*255/300), ($i-400)*255/300);
      
    if ( $i > 35 )
      return imagecolorallocate($img, 255, ($i-35)*255/365, 0); 
    
    return imagecolorallocate($img, $i*255/36, 0, 0);   
  }
  
Feu's avatar
test  
Feu committed
404 405 406
  /**
   * Préalable au rendu: fixe les coordonnées en pixels de tous les éléments
   */
Feu's avatar
Feu committed
407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422
  function pre_render ($tx=100)
  {
    $req = new requete($this->db, "SELECT MIN(x_star), MIN(y_star), MAX(x_star), MAX(y_star) FROM  galaxy_star");
    list($top_x,$top_y,$bottom_x,$bottom_y) = $req->get_row();
    
    $top_x = floor($top_x);
    $top_y = floor($top_y);
    $bottom_x = ceil($bottom_x);
    $bottom_y = ceil($bottom_y);
      
    $this->width = ($bottom_x-$top_x)*$tx;
    $this->height = ($bottom_y-$top_y)*$tx;
    
    new requete($this->dbrw,"UPDATE galaxy_star SET rx_star = (x_star-".sprintf("%f",$top_x).") * $tx, ry_star = (y_star-".sprintf("%f",$top_y).") * $tx");    
  }
  
Feu's avatar
test  
Feu committed
423 424 425
  /**
   * Fait le rendu de la mignature de galaxy
   */
Feu's avatar
wip  
Feu committed
426 427 428 429 430
  function mini_render ( $mini_target="mini_galaxy_temp.png")
  {
    if ( empty($this->width) || empty($this->height) )
      $this->pre_render();
    
Feu's avatar
test  
Feu committed
431
    $img = imagecreatetruecolor($this->width/50,$this->height/50);
Feu's avatar
wip  
Feu committed
432 433
    $bg = imagecolorallocate($img, 0, 0, 0);
    imagefill($img, 0, 0, $bg);
Feu's avatar
test  
Feu committed
434
    $req = new requete($this->db, "SELECT FLOOR(rx_star/50),FLOOR(ry_star/50),SUM(sum_tense_star) FROM  galaxy_star GROUP BY FLOOR(rx_star/50),FLOOR(ry_star/50)");
Feu's avatar
wip  
Feu committed
435 436
    
    while ( list($x,$y,$d) = $req->get_row() )
Feu's avatar
wip  
Feu committed
437
      imagesetpixel($img,$x,$y,$this->star_color($img,$d));
Feu's avatar
wip  
Feu committed
438
    
Feu's avatar
test  
Feu committed
439 440 441 442
    $img2 = imagecreatetruecolor($this->width/100,$this->height/100);
    imagecopyresampled($img2,$img,0,0,0,0,$this->width/100,$this->height/100,$this->width/50,$this->height/50);
    imagepng($img2,$mini_target);
    imagedestroy($img2); 
Feu's avatar
wip  
Feu committed
443 444 445
    imagedestroy($img); 
  }
  
Feu's avatar
test  
Feu committed
446 447 448
  /**
   * Fait le rendu de l'image globale de galaxy
   */
Feu's avatar
wip  
Feu committed
449
  function render ($target="galaxy_temp.png") 
Feu's avatar
Feu committed
450 451 452 453 454 455 456 457 458 459 460 461 462 463
  {
    if ( empty($this->width) || empty($this->height) )
      $this->pre_render();
    
    $img = imagecreatetruecolor($this->width,$this->height);
  
    if ( $img === false )
    {
      echo "failed imagecreatetruecolor($width,$height);";
      exit();
    }
    
    $bg = imagecolorallocate($img, 0, 0, 0);
    $textcolor = imagecolorallocate($img, 255, 255, 255);
Feu's avatar
test  
Feu committed
464
    $wirecolor = imagecolorallocate($img, 32, 32, 32);
Feu's avatar
Feu committed
465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511
    
    imagefill($img, 0, 0, $bg);
    
    imagestring($img, 1, 0, 0, "AE R&D - GALAXY", $textcolor);
    
    for($i=0;$i<820;$i++)
    {
      imageline($img,$i,10,$i,20,$this->star_color($img,$i));
      
      if ( $i %100 == 0)
        imagestring($img, 1, $i, 22, $i, $textcolor);
    }
    
    $req = new requete($this->db, "SELECT ABS(length_link-ideal_length_link) as ex, ".
    "a.rx_star as x1, a.ry_star as y1, b.rx_star as x2, b.ry_star as y2 ".
    "FROM  galaxy_link ".
    "INNER JOIN galaxy_star AS a ON (a.id_star=galaxy_link.id_star_a) ".
    "INNER JOIN galaxy_star AS b ON (b.id_star=galaxy_link.id_star_b)");
    
    while ( $row = $req->get_row() )
    {
      imageline ($img, $row['x1'], $row['y1'], $row['x2'], $row['y2'], $wirecolor );    
    } 
  
    $req = new requete($this->db, "SELECT ".
    "rx_star, ry_star, sum_tense_star  ".
    "FROM  galaxy_star");
    
    while ( $row = $req->get_row() )
    {
      imagefilledellipse ($img, $row['rx_star'], $row['ry_star'], 5, 5, $this->star_color($img,$row['sum_tense_star']) ); 
    }
    
    $req = new requete($this->db, "SELECT ".
    "rx_star, ry_star, COALESCE(alias_utl,CONCAT(prenom_utl,' ',nom_utl)) AS nom ".
    "FROM  galaxy_star ".
    "INNER JOIN utilisateurs ON (utilisateurs.id_utilisateur=galaxy_star.id_star)");  
    
    while ( $row = $req->get_row() )
    {
      imagestring($img, 1, $row['rx_star']+5, $row['ry_star']-3,  utf8_decode($row['nom']), $textcolor);
    }
    
    if ( is_null($target) )
      imagepng($img);
    else
      imagepng($img,$target);
Feu's avatar
wip  
Feu committed
512

Feu's avatar
Feu committed
513 514 515 516
    imagedestroy($img);
    
  }
  
Feu's avatar
test  
Feu committed
517 518 519
  /**
   * Fait le rendu d'une zone de galaxy
   */
Feu's avatar
Feu committed
520
  function render_area ( $tx, $ty, $w, $h, $target=null, $highlight=null )
Feu's avatar
Feu committed
521
  {
Feu's avatar
Feu committed
522
    $x1 = $tx-100; // Pour les textes
Feu's avatar
Feu committed
523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545
    $y1 = $ty-3;
    $x2 = $tx+$w+3;
    $y2 = $ty+$h+3;
  
    $img = imagecreatetruecolor($w,$h);
     
    $bg = imagecolorallocate($img, 0, 0, 0);
    $textcolor = imagecolorallocate($img, 255, 255, 255);
    $wirecolor = imagecolorallocate($img, 32, 32, 32);
    
    imagefill($img, 0, 0, $bg);  
    
    $req = new requete($this->db, "SELECT ABS(length_link-ideal_length_link) as ex, ".
    "a.rx_star as x1, a.ry_star as y1, b.rx_star as x2, b.ry_star as y2 ".
    "FROM  galaxy_link ".
    "INNER JOIN galaxy_star AS a ON (a.id_star=galaxy_link.id_star_a) ".
    "INNER JOIN galaxy_star AS b ON (b.id_star=galaxy_link.id_star_b)");
    
    while ( $row = $req->get_row() )
    {
      imageline ($img, $row['x1']-$tx, $row['y1']-$ty, $row['x2']-$tx, $row['y2']-$ty, $wirecolor );    
    } 
  
Feu's avatar
Feu committed
546
    if ( is_null($highlight ) ) // Normal render
Feu's avatar
Feu committed
547
    {
Feu's avatar
Feu committed
548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564
      $req = new requete($this->db, "SELECT ".
      "rx_star, ry_star, sum_tense_star  ".
      "FROM  galaxy_star ".
      "WHERE rx_star >= $x1 AND rx_star <= $x2 AND ry_star >= $y1 AND ry_star <= $y2");
      
      while ( $row = $req->get_row() )
        imagefilledellipse ($img, $row['rx_star']-$tx, $row['ry_star']-$ty, 5, 5, $this->star_color($img,$row['sum_tense_star']) ); 
      
      $req = new requete($this->db, "SELECT ".
      "rx_star, ry_star, COALESCE(alias_utl,CONCAT(prenom_utl,' ',nom_utl)) AS nom ".
      "FROM  galaxy_star ".
      "INNER JOIN utilisateurs ON (utilisateurs.id_utilisateur=galaxy_star.id_star) ".
      "WHERE rx_star >= $x1 AND rx_star <= $x2 AND ry_star >= $y1 AND ry_star <= $y2" );  
      
      while ( $row = $req->get_row() )
        imagestring($img, 1, $row['rx_star']+5-$tx, $row['ry_star']-3-$ty,  utf8_decode($row['nom']), $textcolor);
      
Feu's avatar
Feu committed
565
    }
Feu's avatar
Feu committed
566
    else
Feu's avatar
Feu committed
567
    {
Feu's avatar
Feu committed
568
      $ids = implode(",",$highlight);
Feu's avatar
Feu committed
569
      
Feu's avatar
test  
Feu committed
570
      $wirecolor = imagecolorallocate($img, 64, 64, 64);
Feu's avatar
Feu committed
571 572 573 574 575 576

      $req = new requete($this->db, "SELECT ABS(length_link-ideal_length_link) as ex, ".
      "a.rx_star as x1, a.ry_star as y1, b.rx_star as x2, b.ry_star as y2 ".
      "FROM  galaxy_link ".
      "INNER JOIN galaxy_star AS a ON (a.id_star=galaxy_link.id_star_a) ".
      "INNER JOIN galaxy_star AS b ON (b.id_star=galaxy_link.id_star_b) ".
Feu's avatar
test  
Feu committed
577
      "WHERE a.id_star = ".$highlight[0]." OR b.id_star = ".$highlight[0]."");
Feu's avatar
Feu committed
578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619
      
      while ( $row = $req->get_row() )
        imageline ($img, $row['x1']-$tx, $row['y1']-$ty, $row['x2']-$tx, $row['y2']-$ty, $wirecolor );    
      
      $textcolor = imagecolorallocate($img, 128, 128, 128);
      
       $req = new requete($this->db, "SELECT ".
      "rx_star, ry_star, sum_tense_star  ".
      "FROM  galaxy_star ".
      "WHERE id_star NOT IN ($ids) AND rx_star >= $x1 AND rx_star <= $x2 AND ry_star >= $y1 AND ry_star <= $y2");
      
      while ( $row = $req->get_row() )
        imagefilledellipse ($img, $row['rx_star']-$tx, $row['ry_star']-$ty, 5, 5, $this->star_color($img,$row['sum_tense_star']) ); 
      
      $req = new requete($this->db, "SELECT ".
      "rx_star, ry_star, COALESCE(alias_utl,CONCAT(prenom_utl,' ',nom_utl)) AS nom ".
      "FROM  galaxy_star ".
      "INNER JOIN utilisateurs ON (utilisateurs.id_utilisateur=galaxy_star.id_star) ".
      "WHERE id_star NOT IN ($ids) AND rx_star >= $x1 AND rx_star <= $x2 AND ry_star >= $y1 AND ry_star <= $y2" );  
      
      while ( $row = $req->get_row() )
        imagestring($img, 1, $row['rx_star']+5-$tx, $row['ry_star']-3-$ty,  utf8_decode($row['nom']), $textcolor);
      
      $textcolor = imagecolorallocate($img, 255, 255, 255);
      
       $req = new requete($this->db, "SELECT ".
      "rx_star, ry_star, sum_tense_star  ".
      "FROM  galaxy_star ".
      "WHERE id_star IN ($ids) AND rx_star >= $x1 AND rx_star <= $x2 AND ry_star >= $y1 AND ry_star <= $y2");
      
      while ( $row = $req->get_row() )
        imagefilledellipse ($img, $row['rx_star']-$tx, $row['ry_star']-$ty, 5, 5, $this->star_color($img,$row['sum_tense_star']) ); 
      
      $req = new requete($this->db, "SELECT ".
      "rx_star, ry_star, COALESCE(alias_utl,CONCAT(prenom_utl,' ',nom_utl)) AS nom ".
      "FROM  galaxy_star ".
      "INNER JOIN utilisateurs ON (utilisateurs.id_utilisateur=galaxy_star.id_star) ".
      "WHERE id_star IN ($ids) AND rx_star >= $x1 AND rx_star <= $x2 AND ry_star >= $y1 AND ry_star <= $y2" );  
      
      while ( $row = $req->get_row() )
        imagestring($img, 1, $row['rx_star']+5-$tx, $row['ry_star']-3-$ty,  utf8_decode($row['nom']), $textcolor);
            
Feu's avatar
Feu committed
620
    }
Feu's avatar
Feu committed
621

Feu's avatar
Feu committed
622 623 624 625
    if ( is_null($target) )
      imagepng($img);
    else
      imagepng($img,$target);
Feu's avatar
wip  
Feu committed
626
      
Feu's avatar
Feu committed
627 628 629 630
    imagedestroy($img);  
        
  }

Feu's avatar
test  
Feu committed
631 632 633
  /**
   * Calcule le nombre d'objet dans la zone donnée.
   */
Feu's avatar
Feu committed
634 635 636 637 638 639 640
  function get_density ( $x1, $y1, $x2, $y2, $except=null )
  {
    $x1 = sprintf("%.f",$x1);
    $y1 = sprintf("%.f",$y1);
    $x2 = sprintf("%.f",$x2);
    $y2 = sprintf("%.f",$y2);
    
Feu's avatar
test  
Feu committed
641
    //echo "get_density($x1,$y1,$x2,$y2) = ";
Feu's avatar
Feu committed
642 643 644 645 646 647 648 649 650 651
    
    if (is_null($except) )
      $req = new requete($this->db, "SELECT ".
        "COUNT(*)  ".
        "FROM  galaxy_star ".
        "WHERE x_star >= $x1 AND x_star < $x2 AND y_star >= $y1 AND y_star < $y2");
    else
      $req = new requete($this->db, "SELECT ".
        "COUNT(*)  ".
        "FROM  galaxy_star ".
Feu's avatar
Feu committed
652
        "WHERE id_star NOT IN (".$except.") AND x_star >= $x1 AND x_star < $x2 AND y_star >= $y1 AND y_star < $y2");
Feu's avatar
Feu committed
653 654 655
        
    list($count) = $req->get_row();
    
Feu's avatar
test  
Feu committed
656
    //echo $count."<br/>\n";
Feu's avatar
Feu committed
657 658 659
    
    return $count;
  }
Feu's avatar
test  
Feu committed
660 661 662 663
  
  /**
   * Cherche un point où la densité est faible dans la zone donnée.
   */
Feu's avatar
Feu committed
664 665 666 667 668 669 670 671 672 673 674 675 676
  function find_low_density_point ( $x, $y, $s, $except=null )
  {
    $ld = null;
    $lx = null;
    $ly = null;
    
    $cx = $x;
    $cy = $y;
    
    for($cx=$x;$cx<$x+$s;$cx+=$s/3)
    {
      for($cy=$y;$cy<$y+$s;$cy+=$s/3)
      {
Feu's avatar
Feu committed
677
        $d = $this->get_density($cx,$cy,$cx+($s/3),$cy+($s/3), $except);
Feu's avatar
Feu committed
678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694
        if ( $d == 0 )
          return array($cx+($s/6),$cy+($s/6));  
        
        if ( is_null($ld) || $ld > $d )
        {
          $lx = $cx;  
          $ly = $cy;
          $ld = $d;
        }
      }
    }
    
    if ( $s < 0.001 )
      return array($lx+($s/6),$ly+($s/6)); 
    
    return $this->find_low_density_point($lx,$ly,$s/3, $except);
  }
Feu's avatar
Feu committed
695
  
Feu's avatar
Feu committed
696 697 698 699 700
  function limits()
  {
    $req = new requete($this->db, "SELECT MIN(x_star), MIN(y_star), MAX(x_star), MAX(y_star) FROM  galaxy_star");
    return $req->get_row();
  }
Feu's avatar
Feu committed
701 702 703 704 705 706 707
  
}




?>