tagadelic et tagadelic.level1

En regardant dans le .module

<?php
/**
 * API that returns an array with weighted tags
 * This is the hard part. People with better ideas are very very welcome to send these to <a href="mailto:ber@webschuur.com" rel="nofollow">ber@webschuur.com</a>. Distribution is one thing that needs attention.
 * @param $result. a query result, any query result that contains an <em>object</em> with the following attributes: $tag->count, $tag->tid, $tag->name and $tag->vid. Refer to tagadelic_get_weighted_tags() for an example."
 * @param $steps. The amount of tag-sizes you will be using. If you give "12" you sill get six different "weights". Defaults to 6 and is optional.
 * @return An <em>unordered</em> array with tags-objects, containing the attribute $tag->weight;
 */
function tagadelic_build_weighted_tags($result, $steps = 6) {
  // Find minimum and maximum log-count. By our MatheMagician Steven Wittens aka UnConeD.
  $tags = array();
  $min = 1e9;
  $max = -1e9;
  while ($tag = db_fetch_object($result)) {
    $tag->number_of_posts = $tag->count;
    $tag->count = log($tag->count);
    $min = min($min, $tag->count);
    $max = max($max, $tag->count);
    $tags[$tag->tid] = $tag;
  }
  // Note: we need to ensure the range is slightly too large to make sure even
  // the largest element is rounded down.
  $range = max(.01, $max - $min) * 1.0001;

  foreach ($tags as $key => $value) {
    $tags[$key]->weight = 1 + floor($steps * ($value->count - $min) / $range);
  }
  return $tags;
}
?>

Apres, c'est un probleme de math si tu ne comprends pas .. :P

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Tagadelic et tagadelic.level1