added call to setLastStamp

src/subscriber_laser2d.cpp

@@ -20,6 +20,7 @@ void SubscriberLaser2d::initialize(ros::NodeHandle& nh, const std::string& topic
 
 void SubscriberLaser2d::callback(const sensor_msgs::LaserScan::ConstPtr& msg)
 {
+    setLastStamp(msg->header.stamp);
 
     CaptureLaser2dPtr new_capture = std::make_shared<CaptureLaser2d>(TimeStamp(msg->header.stamp.sec, msg->header.stamp.nsec), sensor_ptr_, msg->ranges);
     // auto n = std::min(msg->ranges.size(), new_capture->getScan().ranges_raw_.size());