Changeset 1236 for g-map/files/lib/data/gmap/GmapCluster.class.php

Timestamp:

10/09/10 19:41:52 (3 years ago)

Author:

d0nut

Message:

may finish gmap 2.0.0 RC 3

Files:

• g-map/files/lib/data/gmap/GmapCluster.class.php (modified) (4 diffs)

g-map/files/lib/data/gmap/GmapCluster.class.php

@@ -48 +48 @@
          * @return   object Google_Maps_Coordinate
          */
-        protected function getCluster(array $markers) {
+        protected function getCluster(array $markers, $return_ids = false) {
                 $count = count($markers);
+                $ids = array();
 
                 /* Calculate average lat and lon of markers. */
@@ -56 +57 @@
                    $lat_sum += $marker['lat'];
                    $lon_sum += $marker['lon'];
+                   if($return_ids) {
+                        $ids[] = $marker['id'];
+                   }
                 }
                 $lat_avg = $lat_sum / $count;
                 $lon_avg = $lon_sum / $count;
                 
-                return array(
+                $data = array(
                         'count' => $count,
                         'lat' => $lat_avg,
                         'lon' => $lon_avg
                 );
+                if(count($ids)) {
+                        $data['ids'] = $ids;
+                }
+                
+                return $data;
         }
 
@@ -71 +80 @@
          * @param       $markers        Array of lat and lon locations.
          */
-        public function getMarkers(array $markers) {
+        public function getMarkers(array $markers, $pick = array()) {
                 $clustered = array();
 
@@ -102 +111 @@
                 return $clustered;
         }
+
+        /**
+         *
+         * @param       $markers        Array of lat and lon locations.
+         */
+        public function getIDs(array $markers, $lat, $lon) {
+
+                /* Loop until all markers have been compared. */
+                while (count($markers)) {
+                        $marker  = array_pop($markers);
+                        $cluster = array();
+
+                        /* Compare against all markers which are left. */
+                        foreach ($markers as $key => $target) {
+                                $pixels = $this->pixelDistance($marker['lat'], $marker['lon'], $target['lat'], $target['lon'], $this->zoom);
+
+                                /* If two markers are closer than given distance remove */
+                                /* target marker from array and add it to cluster.        */
+                                if ($this->distance > $pixels) {
+                                        unset($markers[$key]);
+                                        $cluster[] = $target;
+                                }
+                        }
+
+                        /* If a marker has been added to cluster, add also the one  */
+                        /* we were comparing to and remove the original from array. */
+                        if (count($cluster) > 0) {
+                                $cluster[] = $marker;
+                                $cluster = $this->getCluster($cluster, true);
+                                if(abs($cluster['lat'] - $lat) < 0.000000001 && abs($cluster['lon'] - $lon) < 0.000000001) {
+                                        return $cluster['ids'];
+                                }
+                        } else {
+                                if(abs($marker['lat'] - $lat) < 0.000000001 && abs($marker['lon'] - $lon) < 0.000000001) {
+                                        return array($marker['id']);
+                                }
+                        }
+                }
+                return null;
+        }
 }