Index: gmap_plugin_style_gmap.inc
===================================================================
RCS file: /cvs/drupal-contrib/contributions/modules/gmap/gmap_plugin_style_gmap.inc,v
retrieving revision 1.9
diff -u -p -r1.9 gmap_plugin_style_gmap.inc
--- gmap_plugin_style_gmap.inc	3 Apr 2009 15:34:50 -0000	1.9
+++ gmap_plugin_style_gmap.inc	12 May 2009 23:04:12 -0000
@@ -29,6 +29,8 @@ class gmap_plugin_style_gmap extends vie
     $options['markers'] = array('default' => 'static');
     $options['markertype'] = array('default' => 'drupal');
 
+    $options['center_on_nodearg'] = array('default' => '0');
+
     $options['latfield'] = array('default' => '');
     $options['lonfield'] = array('default' => '');
     $options['markerfield'] = array('default' => '');
@@ -139,6 +141,14 @@ class gmap_plugin_style_gmap extends vie
       }
       if (!empty($markers)) { // Don't draw empty maps.
         $map = gmap_parse_macro($this->options['macro']);
+        if ($this->options['center_on_nodearg'] && $nodehandler = $this->view->display_handler->get_handler('argument', 'nid')) {
+          $nid = $nodehandler->get_value();
+          if ($nid && $tempnode = node_load(array('nid' => $nid))) {
+            $map['longitude'] = $tempnode->location['longitude'];
+            $map['latitude'] = $tempnode->location['latitude'];
+          }
+        }
+
         $map['markers'] = $markers;
         $output .= theme($this->theme_functions(), $this->view, $this->options, $map, $title);
       }
@@ -151,6 +161,13 @@ class gmap_plugin_style_gmap extends vie
    */
   function options_form(&$form, &$form_state) {
     parent::options_form($form, $form_state);
+    $form['center_on_nodearg'] = array(
+      '#type' => 'checkbox',
+      '#title' => t('Center on node argument'),
+      '#default_value' => $this->options['center_on_nodearg'],
+      '#description' => t('Note: The view must contain a node by node id as an argument'),
+    );
+
     $form['macro'] = array(
       '#type' => 'textfield',
       '#title' => t('Macro'),