ros2 interface show <type_name> 要对/clear服务的Empty类型运行此命令,请执行以下操作: ros2 interface show std_srvs/srv/Empty 这将返回: --- ---将请求结构(上面)与响应结构(下面)分开。 但是,正如您前面所了解的,Empty类型不发送或接收任何数据。 所以,自然,它的结构是空白的。 让我们回顾一个具有发...
msgs are just simple text files with a field type and field name per line. The field types you can use are: msgs只是简单的文本文件,每行有一个字段类型和字段名称。可以使用的字段类型是: int8, int16, int32, int64 (plus uint*) float32, float64 string other msg files variable-length array...
/parameter_events[rcl_interfaces/msg/ParameterEvent]/rosout[rcl_interfaces/msg/Log]/turtle1/cmd_vel[geometry_msgs/msg/Twist]/turtle1/color_sensor[turtlesim/msg/Color]/turtle1/pose[turtlesim/msg/Pose]➜ ros2servicelist-t#前面为通讯方式的名称,中括号内为通讯类型/clear[std_srvs/srv/Empty]/kill...
ros2 topic pub --once /turtle1/cmd_vel geometry_msgs/msg/Twist "{linear: {x: 2.0, y: 0.0, z: 0.0}, angular: {x: 0.0, y: 0.0, z: 1.8}}"publisher: beginning loop publishing #1: geometry_msgs.msg.Twist(linear=geometry_msgs.msg.Vector3(x=2.0, y=0.0, z=0.0), angular=geometry...
)target_compile_features(radar_component PUBLIC c_std_99 cxx_std_17) ament_target_dependencies(radar_component"rclcpp_components""rclcpp""message_filters""pcl_msgs""PCL")target_link_libraries(radar_component glog ) rclcpp_components_register_node(radar_component ...
/turtle1/cmd_vel: geometry_msgs/msg/Twist Publishers: /parameter_events: rcl_interfaces/msg/ParameterEvent /rosout: rcl_interfaces/msg/Log /turtle1/color_sensor: turtlesim/msg/Color /turtle1/pose: turtlesim/msg/Pose Services: /clear: std_srvs/srv/Empty ...
publisher=simROS2.advertise('/simulationTime','std_msgs/Float32') subscriber=simROS2.subscribe('/simulationTime','std_msgs/Float32','subscriber_callback') end end functionsysCall_actuation() --Send an updated simulation time message, and send the transform of the object attached to this script...
_msgs/SelfTestResponse example_a_msgs/DependsOnB example_b_msgs/Standalone example_c_msgs/DependsOnB example_interfaces/AddTwoIntsRequest example_interfaces/AddTwoIntsResponse example_interfaces/Bool example_interfaces/Byte example_interfaces/ByteMultiArray example_interfaces/Char example_interfaces/Empty...
_msgs/SelfTestResponse example_a_msgs/DependsOnB example_b_msgs/Standalone example_c_msgs/DependsOnB example_interfaces/AddTwoIntsRequest example_interfaces/AddTwoIntsResponse example_interfaces/Bool example_interfaces/Byte example_interfaces/ByteMultiArray example_interfaces/Char example_interfaces/Empty...
std_msgs/Header header # timestamp in the header is the acquisition time of builtin_interfaces/Time stamp int32 sec uint32 nanosec string frame_id # the first ray in the scan. # # in frame frame_id, angles are measured around