Fix some bugs in Geometry class.

Author: Pol Dell'Aiera

lib/adapters/GPX.class.php

@@ -128,6 +128,7 @@ protected function parseTracks() {
       if ($components) {
         $line = new LineString($components);
         $line->registerMetadataProvider($tmd_provider);
+        $line->registerMetadataProvider($ele_provider);
         $lines[] = $line;
       }
     }

lib/geometry/Collection.class.php

@@ -290,5 +290,14 @@ public function exteriorRing()     { return NULL; }
   public function numInteriorRings() { return NULL; }
   public function interiorRingN($n)  { return NULL; }
   public function pointOnSurface()   { return NULL; }
+
+  public function metadata($key) {
+    $metadatas = array();
+    foreach ($this->components as $component) {
+      $metadatas[] = $component->metadata($key);
+    }
+    return $metadatas;
+  }
+
 }
 

lib/geometry/ElevationMetadataProvider.class.php

@@ -13,8 +13,11 @@ public function get($target, $key) {
   }
 
   public function set($target, $key, $value) {
-    $target->metadata[__CLASS__][$key] = $value;
-    return TRUE;
+    if ($key === 'ele') {
+      $target->metadata[__CLASS__][$key] = $value;
+      return TRUE;
+    }
+    return FALSE;
   }
 
   public function id() {

lib/geometry/Geometry.class.php

@@ -356,8 +356,8 @@ public function metadata($key) {
         if ($metadata_provider->set($this, $key, $value)) {
           return TRUE;
         }
-        return FALSE;
       }
+      return FALSE;
     }
   }
 }

lib/geometry/TimeMetadataProvider.class.php

@@ -13,8 +13,11 @@ public function get($target, $key) {
   }
 
   public function set($target, $key, $value) {
-    $target->metadata[__CLASS__][$key] = $value;
-    return TRUE;
+    if ($key === 'time') {
+      $target->metadata[__CLASS__][$key] = $value;
+      return TRUE;
+    }
+    return FALSE;
   }
 
   public function id() {