:param timestamp: 13 位整数的毫秒时间戳 (1456402864242) :return: 返回字符串格式 {str}'2016-02-25 20:21:04.242000' """ local_str_time = datetime.fromtimestamp(timestamp / 1000.0).strftime('%Y-%m-%d %H:%M:%S.%f') return local_str_time def timestamp_to_datetime(timestamp): """将 ...
以下是如何在 ROS 2 Python 中获取当前时间戳的示例: importrclpyfromrclpy.nodeimportNodefrombuiltin_interfaces.msgimportTimeclassTimestampNode(Node):def__init__(self):super().__init__('timestamp_node')self.timer=self.create_timer(1.0,self.timer_callback)deftimer_callback(self):now=self.get_cl...
/opt/ros/noetic/include/message_filters/sync_policies/approximate_time.h:181:86: error: ‘value’ is not a member of ‘ros::message_traits::TimeStamp<rfid_reader::DataDev_<std::allocator<void>>, void>’181|previous_msg_time=mt::TimeStamp<typename mpl::at_c<Messages, i>::type>::valu...
CREATE TABLEsensor_messages(id INT AUTO_INCREMENT PRIMARY KEY,topic VARCHAR(100),message TEXT,received_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP); 这将创建一个名为sensor_messages的表,其中包括id,topic,message和received_at字段。 第三步:编写P...
timestamp,topic,message1690772100.010,/robot/odom,"{x: 0.0, y: 0.0, theta: 0.0}"1690772100.015,/lidar/scan,"[1.0, 0.9, 1.2, ...]"1690772100.020,/camera/image,"image_binary_data" 导出的数据可用于外部工具(如 Excel、Python)进一步分析。
timestamp: 0 transition: id: 0 label: '' start_state: id: 10 label: configuring goal_state: id: 2 label: inactive --- managed_scan话题也能用ros2 topic list看到了。 如果需要重新启动一个节点,可以按下面的步骤进行操作: 将节点切换到inactive状态 ...
文章目录 nocopyable Logger Timestamp InetAddr nocopyable //以前的那种是语言级别的,这个是编译器级别的 #pragma once /* 原理:派生类的拷贝构造和赋值,肯定要先调用基类的拷贝构造跟赋值采用这种方式,可以让派生类直接无法拷贝构造跟赋值 为什么不在子类里面自己delete呢?优雅呗哈哈哈 */ //作为一个没有拷贝构造...
rostopic delay display delay of topic from timestampinheader rostopicechoprint messages to screen rostopicfindfindtopics by type rostopic hz display publishing rate of topic rostopicinfoprint information about active topic rostopic list list active topics ...
新建一个终端,执行jupyter-notebook命令,打开 Jupyter Notebook 浏览器界面。然后点击 “新建”,选择 Python3,开始编写 Python 代码。 程序的流程大致如下: 读取文件内容,并将其中的 sec 和 nanosec 字段信息重新组合成一个完整的 timestamp 时间戳,保存到列表 timestamps 中(这里保存 800 组数据)。
Commands: rostopic bw display bandwidth used by topic rostopic delay display delay of topic from timestamp in header rostopic echo print messages to screen rostopic find find topics by type rostopic hz display publishing rate of topic rostopic info print information about active topic ros...