ros::Time right_now = ros::Time::now();//将当前时刻封装成对象 1. 查看指令: ROS_INFO("当前时刻:%d",right_now.sec); 1. 2. 设置时刻 //第一种 ros::Time someTime(param2,param2);// 参数1:秒数 参数2:纳秒 //第二种 ros::Time someTime2(100.3); //直接传入 double 类型的秒数 1...
/opt/ros/noetic/include/message_filters/sync_policies/approximate_time.h:187:87: error: ‘value’ is not a member of ‘ros::message_traits::TimeStamp<rfid_reader::DataDev_<std::allocator<void> >, void>’ 187 | previous_msg_time = mt::TimeStamp<typename mpl::at_c<Messages, i>::typ...
2. 遇见的问题:(Header header 的缺失) 主要报错如下: ###最开始显示的信息:/opt/ros/noetic/include/message_filters/sync_policies/approximate_time.h: In instantiation of ‘bool message_filters::sync_policies::ApproximateTime<M0, M1, M2, M3, M4, M5, M6, M7, M8>::checkInterMessageBound()[wi...
\033[0m"<<endl;// 打印同步信息syn_pointcloud = *ori_pointcloud;// 保存同步后的点云syn_image = *ori_image;// 保存同步后的图像cout<<"syn pointcloud's timestamp : "<< syn_pointcloud.header.stamp <<endl;// 打印点云时间戳cout<<"syn...
message = 'Battery very low! Cozmo will power off soon!' # update message stamp and publish self._diag_array.header.stamp = rospy.Time.now() self._diag_pub.publish(self._diag_array) def _move_head(self, cmd): """ Move head to given angle. :type cmd: Float64 :param cmd: The ...
pub_msg.header.frame_id = micro_ros_string_utilities_set(pub_msg.header.frame_id,"laser");//初始化消息内容int64_t current_time =rmw_uros_epoch_millis(); pub_msg.header.stamp.sec= current_time * 1e-3; pub_msg.header.stamp.nanosec= current_time - pub_msg.header.stamp.sec *1000; ...
std msgs/Header header # timestampinthe header is the acquisition timeof# the first rayinthe scan.##inframe frame id,angles are measured around # the positiveZaxis(counterclockwise,ifZis up)#withzero angle being forward along the x axis ...
if(tf_broadcast_ ==true){// We want to send a transform that is good up until a// tolerance time so that odom can be usedros::Time transform_expiration = (laser_scan->header.stamp + transform_tolerance_);geometry_msgs::TransformStamp...
首先我们先来看一下sensor_msgs::msg::Image的数据结构: std_msgs/Header header # Header timestamp should be acquisition time of image # Header frame_id should be optical frame of camera # origin of frame should be optical center of cameara # +x should point to the right in the image # ...
pub_msg.header.frame_id = micro_ros_string_utilities_set(pub_msg.header.frame_id, "laser"); // 初始化消息内容 int64_t current_time = rmw_uros_epoch_millis(); pub_msg.header.stamp.sec = current_time * 1e-3; pub_msg.header.stamp.nanosec = current_time - pub_msg.header.stamp.sec...