galaxy.inc.php 25.3 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
define("GALAXY_SCORE_1PTPHOTO",1);
define("GALAXY_SCORE_PARRAINAGE",15);
define("GALAXY_SCORE_1PTJOURSASSO",75);
define("GALAXY_MINSCORE",10);
Feu's avatar
Feu committed
32 33 34 35 36 37 38 39 40

class galaxy
{
  var $db;
  var $dbrw;
  
  var $width;
  var $height;
  
Feu's avatar
test  
Feu committed
41
  var $done_pre_cycle;
Feu's avatar
Feu committed
42 43 44 45 46
  
  function galaxy ( &$db, &$dbrw )
  {
    $this->db = $db;
    $this->dbrw = $dbrw;
Feu's avatar
test  
Feu committed
47
    $this->done_pre_cycle=false;
Feu's avatar
Feu committed
48 49
  }  
  
Feu's avatar
test  
Feu committed
50 51 52 53
  /**
   * 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
54 55 56 57 58 59 60
  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
61

Feu's avatar
Feu committed
62
  
Feu's avatar
fix  
Feu committed
63
  function scores ()
Feu's avatar
Feu committed
64 65 66 67 68
  {
    $liens = array();
    
    // 1- Cacul du score
    
Feu's avatar
Feu committed
69
    // a- Les photos : 1pt / n photo ensemble
Feu's avatar
Feu committed
70 71 72 73 74 75 76 77 78 79 80
    $req = new requete($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']);
      
Feu's avatar
Feu committed
81
      $liens[$a][$b] = round($row['c']/GALAXY_SCORE_1PTPHOTO);
Feu's avatar
Feu committed
82 83
    }  
    
Feu's avatar
Feu committed
84
    // b- Parrainage : n pt / relation parrain-fillot
Feu's avatar
Feu committed
85 86 87 88 89 90 91 92 93
    $req = new requete($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]) )
Feu's avatar
Feu committed
94
        $liens[$a][$b] += GALAXY_SCORE_PARRAINAGE;
Feu's avatar
Feu committed
95
      else
Feu's avatar
Feu committed
96
        $liens[$a][$b] = GALAXY_SCORE_PARRAINAGE;
Feu's avatar
Feu committed
97 98
    }  
    
Feu's avatar
Feu committed
99
    // c- associations et clubs : 1pt / n jours ensemble / assos
Feu's avatar
Feu committed
100 101 102 103 104 105 106
    $req = new requete($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
Feu's avatar
Feu committed
107
  AND DATEDIFF(LEAST(COALESCE(a.date_fin,NOW()),COALESCE(b.date_fin,NOW())),GREATEST(a.date_debut,b.date_debut)) >= ".GALAXY_SCORE_1PTJOURSASSO."
Feu's avatar
Feu committed
108 109 110 111 112 113 114 115 116 117
  )
  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]) )
Feu's avatar
Feu committed
118
        $liens[$a][$b] += round($row['together']/GALAXY_SCORE_1PTJOURSASSO);
Feu's avatar
Feu committed
119
      else
Feu's avatar
Feu committed
120
        $liens[$a][$b] = round($row['together']/GALAXY_SCORE_1PTJOURSASSO);
Feu's avatar
Feu committed
121 122 123 124 125 126
    }    
    
    // 2- On vire les liens pas significatifs
    foreach ( $liens as $a => $data )
    {
      foreach ( $data as $b => $score )
Feu's avatar
Feu committed
127
        if ( $score < GALAXY_MINSCORE )
Feu's avatar
Feu committed
128 129
          unset($liens[$a][$b]);
    }
Feu's avatar
fix  
Feu committed
130 131 132 133 134 135 136 137 138 139 140

    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
141
    
Feu's avatar
fix  
Feu committed
142 143
    $liens = $this->scores();
        
Feu's avatar
Feu committed
144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180
    // 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($this->dbrw, "UPDATE galaxy_star SET nblinks_star = ( SELECT COUNT(*) FROM galaxy_link WHERE id_star_a=id_star OR id_star_b=id_star )");
Feu's avatar
test  
Feu committed
181
    new requete($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
182
    
Feu's avatar
test  
Feu committed
183
    new requete($this->dbrw, "UPDATE galaxy_link SET ideal_length_link=0.25+((1-(tense_link/max_tense_stars_link))*30)");
Feu's avatar
Feu committed
184 185
    new requete($this->dbrw, "DELETE FROM galaxy_star WHERE nblinks_star = 0");
  
Feu's avatar
fix  
Feu committed
186
  }
Feu's avatar
Feu committed
187
  
Feu's avatar
fix  
Feu committed
188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258
  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
259 260
  }
  
Feu's avatar
fix  
Feu committed
261 262
  
  
Feu's avatar
test  
Feu committed
263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280
  /**
   * 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
281 282
  function cycle ( $detectcollision=false )
  {
Feu's avatar
test  
Feu committed
283 284
    if ( !$this->done_pre_cycle )
      $this->pre_cycle();
Feu's avatar
test  
Feu committed
285 286 287 288 289 290 291 292 293 294
    
    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
295
    $req = new requete($this->db,"SELECT MAX(length_link/ideal_length_link),AVG(length_link/ideal_length_link) FROM galaxy_link");
Feu's avatar
test  
Feu committed
296
    
Feu's avatar
test  
Feu committed
297
    $reducer=1000;
Feu's avatar
test  
Feu committed
298
    
Feu's avatar
test  
Feu committed
299 300
    if ( $req->lines > 0 )
    {
Feu's avatar
test  
Feu committed
301
      list($max,$avg) = $req->get_row();
Feu's avatar
test  
Feu committed
302 303 304 305 306
      if ( $max > 1000 )
      {
        echo "failed due to expension";
        exit();
      }
Feu's avatar
test  
Feu committed
307
      if ( !is_null($max) && $max > 0 )
Feu's avatar
test  
Feu committed
308
        $reducer = max(25,round($max)*3);  
Feu's avatar
Feu committed
309
      //echo $max." ".$avg." (".$reducer.") - ";
Feu's avatar
test  
Feu committed
310
    }    
Feu's avatar
test  
Feu committed
311 312
    
    new requete($this->dbrw,"UPDATE galaxy_link, galaxy_star AS a, galaxy_star AS b SET  ".
Feu's avatar
test  
Feu committed
313 314 315
    "delta_link_a=(length_link-ideal_length_link)/ideal_length_link/$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
316
    
Feu's avatar
Feu committed
317 318 319 320 321 322 323 324 325 326 327 328
    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
329 330 331
    
  }
  
Feu's avatar
test  
Feu committed
332 333 334
  /**
   * Provoque un deplacement aleatoir de tous les éléments (+/- 5 sur x et y)
   */
Feu's avatar
test  
Feu committed
335 336 337
  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
338 339
  }
  
Feu's avatar
test  
Feu committed
340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360
  /**
   * 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) = $req->get_row() )
    {
Feu's avatar
fix  
Feu committed
361
      list($nx,$ny) = $this->find_low_density_point($cx-$l,$cy-$l,$l*2,$id); 
Feu's avatar
test  
Feu committed
362 363 364 365 366 367 368
      $nx = sprintf("%.f",$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
369
    $cw = max($x2-$x1,$y2-$y1);
Feu's avatar
test  
Feu committed
370 371 372 373 374 375 376 377 378 379 380 381 382
    
    $req = new requete($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 ( $d > 5 )
      {
Feu's avatar
fix  
Feu committed
383
        list($nx,$ny) = $this->find_low_density_point($x1,$y1,$cw,"$ida,$idb"); 
Feu's avatar
test  
Feu committed
384 385 386 387 388 389 390
        //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
391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407
  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
408 409 410
  /**
   * Préalable au rendu: fixe les coordonnées en pixels de tous les éléments
   */
Feu's avatar
Feu committed
411 412 413 414 415 416 417 418 419 420 421 422 423
  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;
    
Feu's avatar
Feu committed
424
    $req=new requete($this->dbrw,"UPDATE galaxy_star SET rx_star = (x_star-".sprintf("%.f",$top_x).") * $tx, ry_star = (y_star-".sprintf("%.f",$top_y).") * $tx");   
Feu's avatar
Feu committed
425
    print_r($req); 
Feu's avatar
Feu committed
426 427
  }
  
Feu's avatar
test  
Feu committed
428 429
  /**
   * Fait le rendu de la mignature de galaxy
Feu's avatar
Feu committed
430
   */</>
Feu's avatar
wip  
Feu committed
431 432 433 434 435
  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
436
    $img = imagecreatetruecolor($this->width/50,$this->height/50);
Feu's avatar
wip  
Feu committed
437 438
    $bg = imagecolorallocate($img, 0, 0, 0);
    imagefill($img, 0, 0, $bg);
Feu's avatar
test  
Feu committed
439
    $req = new requete($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
440 441
    
    while ( list($x,$y,$d) = $req->get_row() )
Feu's avatar
wip  
Feu committed
442
      imagesetpixel($img,$x,$y,$this->star_color($img,$d));
Feu's avatar
wip  
Feu committed
443
    
Feu's avatar
test  
Feu committed
444 445 446 447
    $img2 = imagecreatetruecolor($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
448 449 450
    imagedestroy($img); 
  }
  
Feu's avatar
test  
Feu committed
451 452 453
  /**
   * Fait le rendu de l'image globale de galaxy
   */
Feu's avatar
wip  
Feu committed
454
  function render ($target="galaxy_temp.png") 
Feu's avatar
Feu committed
455 456 457 458 459 460 461 462 463 464 465 466 467 468
  {
    if ( empty($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
469
    $wirecolor = imagecolorallocate($img, 32, 32, 32);
Feu's avatar
Feu committed
470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516
    
    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
517

Feu's avatar
Feu committed
518 519 520 521
    imagedestroy($img);
    
  }
  
Feu's avatar
test  
Feu committed
522 523 524
  /**
   * Fait le rendu d'une zone de galaxy
   */
Feu's avatar
Feu committed
525
  function render_area ( $tx, $ty, $w, $h, $target=null, $highlight=null )
Feu's avatar
Feu committed
526
  {
Feu's avatar
Feu committed
527
    $x1 = $tx-100; // Pour les textes
Feu's avatar
Feu committed
528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550
    $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
551
    if ( is_null($highlight ) ) // Normal render
Feu's avatar
Feu committed
552
    {
Feu's avatar
Feu committed
553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569
      $req = new requete($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
570
    }
Feu's avatar
Feu committed
571
    else
Feu's avatar
Feu committed
572
    {
Feu's avatar
Feu committed
573
      $ids = implode(",",$highlight);
Feu's avatar
Feu committed
574
      
Feu's avatar
test  
Feu committed
575
      $wirecolor = imagecolorallocate($img, 64, 64, 64);
Feu's avatar
Feu committed
576 577 578 579 580 581

      $req = new requete($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
582
      "WHERE a.id_star = ".$highlight[0]." OR b.id_star = ".$highlight[0]."");
Feu's avatar
Feu committed
583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624
      
      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
625
    }
Feu's avatar
Feu committed
626

Feu's avatar
Feu committed
627 628 629 630
    if ( is_null($target) )
      imagepng($img);
    else
      imagepng($img,$target);
Feu's avatar
wip  
Feu committed
631
      
Feu's avatar
Feu committed
632 633 634 635
    imagedestroy($img);  
        
  }

Feu's avatar
test  
Feu committed
636 637 638
  /**
   * Calcule le nombre d'objet dans la zone donnée.
   */
Feu's avatar
Feu committed
639 640 641 642 643 644 645
  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
646
    //echo "get_density($x1,$y1,$x2,$y2) = ";
Feu's avatar
Feu committed
647 648 649 650 651 652 653 654 655 656
    
    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
657
        "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
658 659 660
        
    list($count) = $req->get_row();
    
Feu's avatar
test  
Feu committed
661
    //echo $count."<br/>\n";
Feu's avatar
Feu committed
662 663 664
    
    return $count;
  }
Feu's avatar
test  
Feu committed
665 666 667 668
  
  /**
   * Cherche un point où la densité est faible dans la zone donnée.
   */
Feu's avatar
Feu committed
669 670 671 672 673 674 675 676 677 678 679 680 681
  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
682
        $d = $this->get_density($cx,$cy,$cx+($s/3),$cy+($s/3), $except);
Feu's avatar
Feu committed
683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699
        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
700
  
Feu's avatar
Feu committed
701 702 703 704 705
  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
706 707 708 709 710 711 712
  
}




?>