decompress Decompress one or more bag files. filter Filter the contents of the bag. fix Repair the messagesina bag file so that it can be playedinthe current system. help info Summarize the contents of one or more bag files. play Play back the contents of one or more bag filesina time-...
使用message_filter 同步时,回调函数不需要占位符,可如下使用: gray_sync_sub_=newmessage_filters::Subscriber<MsgImage>(nh,gray_topic_);raw_sync_sub_=newmessage_filters::Subscriber<MsgImage>(nh,raw_topic_);sync_raw_gray_=newmessage_filters::Synchronizer<RawGraySync>(RawGraySync(100),*raw_sync_...
replay and manipulate bags.Available subcommands:check Determine whether a bag is playableinthe current system,orifit can be migrated.compress Compress one or more bag files.decompress Decompress one or more bag files.filter Filter the contentsofthe bag.fix Repair...
接下来,我们使用rospy.Subscriber订阅了两个主题,并创建了一个发布器merged_pub用于发布合并后的消息。然后,我们使用rospy.Subscriber创建了一个消息过滤器message_filter,并通过registerCallback方法将两个回调函数和合并回调函数注册到消息过滤器中。 最后,我们使用rospy.spin()来保持节点的运行,等待消息的到来和处理。
ros2 ros2中的订阅者类明和创建方式如下: (注意名字)订阅回调为成员变量时 ,参考 https://github.com/ros2/examples/blob/master/rclcpp/minimal_subscriber/member_function.cpp 另外回调函数如下,可以使用ptr,但不支持ptr引用传值 使用message_filter 同步时,回调函数不需要占位符,可如下使用:
*/}intmain(intargc,char** argv){// 需要用message_filter容器对两个话题的数据发布进行初始化,这里不能指定回调函数message_filters::Subscriber<sensor_msgs::Imu>sub_imu_accel(n,IMU_TOPIC_ACCEL,2000,ros::TransportHints().tcpNoDelay());message_filters::Subscriber<sensor_msgs::Imu>sub_imu_gyro(n,...
"My conditional INFO stream message; val ("<<val<<") < 0" ); 1. 2. 3. 4. 5. 过滤(Filtered)信息在本质上与按条件显示信息类似,但它允许指定一个用户自定义的过滤器。这个自定义过滤器继承自ros::console::FilterBase结构体。必须将过滤器作为指针传递给以ROS_<LEVEL>[_STREAM]_FILTER [_NAMED]...
Using Stamped datatypes with tf::MessageFilter This tutorial describes how to use tf::MessageFIlter to process Stamped datatypes.Setting up your robot with tfSetting up your robot using tf This tutorial provides a guide to set up your robot to start using tf. Using the robot state publisher ...
message(STATUS "PCL_INCLUDE_DIRS:" ${PCL_INCLUDE_DIRS}) message(STATUS "PCL_LIBRARY_DIRS:" ${PCL_LIBRARY_DIRS}) message(STATUS "PCL_DEFINITIONS:" ${PCL_DEFINITIONS}) // 打印如下: -- PCL_INCLUDE_DIRS:/usr/local/include/pcl-1.12
Topic 一般拥有很强的类型定义:一种类型的topic只能接受/ 发送特定数据类型(message type)的message。Publisher 没有被要求类型一致性,但是接受时subscriber会检查类型 的md5,进而报错。1.3.2、Service service 用于处理ros通讯中的同步通讯,采用server/client 语义。每个service type拥 有 request 与 response两部分,...