function defaultDataSetAttrs($uuid, $name, $derive, $attrs)
 {
     if (!isset($attrs['gid'])) {
         $attrs['gid'] = "{$uuid}-{$name}";
     }
     if (!isset($attrs['title'])) {
         $attrs['title'] = "{$uuid}-{$name}";
     }
     if (!isset($attrs['fill_alpha'])) {
         $attrs['fill_alpha'] = "20";
     }
     if (!isset($attrs['selected'])) {
         $attrs['selected'] = "false";
     }
     return parent::defaultDataSetAttrs($uuid, $name, $derive, $attrs);
 }
 function defaultDataSetAttrs($uuid, $name, $derive, $attrs)
 {
     return parent::defaultDataSetAttrs($uuid, $name, $derive, $attrs);
 }