catkin_create_pkg ros_json_example rospy cd .. catkin_make ``` 接着,在`ros_json_example`包的`src`目录中创建一个名为`convert_to_json.py`的Python脚本文件,并将以下代码复制粘贴进去: ```python #!/usr/bin/env python import rospy import json from std_msgs.msg import String def callback(...
Python 需要调用的中间文件(.../工作空间/devel/lib/python3/dist-packages/包名/msg) 添加到$PYTHONPATH: C++ 是头文件 中间文件(.../工作空间/devel/include/包名/xxx.h) rosmsg show staff_msgs/staff 调用msg 在ROS中使用Python订阅novatel_msgs/INSPVAX.msg主题的基本步骤如下: 确保novatel_msgs已正确安装...
| livox_hub_msg.launch | 连接览沃中心板设备向外发布览沃自定义点云数据 | | lvx_to_rosbag.launch | 转换 lvx 文件为 rosbag 文件直接将 lvx 文件转换为 rosbag 文件 | | lvx_to_rosbag_rviz.launch | 转换 lvx 文件为 rosbag 文件从 lvx 文件中读取点云数据,并转换为 pointcloud2 格式向外发布 ...
importorg.rosbag.Message;publicvoidparseRosbagContent(Bagbag){for(Messagemsg:bag.getMessages()){Stringtopic=msg.getTopic();// 获取主题longtimestamp=msg.getTime();// 获取时间戳Stringdata=msg.getData();// 获取消息数据// 这里可以将提取的数据存储到某个数据结构中}} 1. 2. 3. 4. 5. 6. ...
from sensor_msgs.msg import Image import cv2 import numpy as np from cv_bridge import CvBridge, CvBridgeError import sys def webcamImagePub(): # init ros_node rospy.init_node('webcam_puber', anonymous=True) # queue_size should be small in order to make it 'real_time' ...
using RosPositon = RosMessageTypes.UnityRoboticsDemo.PosRotMsg; public class RosSubscriberExample : MonoBehaviour { public GameObject cube; private Vector3 end; void Start() { ROSConnection.GetOrCreateInstance().Subscribe<RosPositon>("position", PositionChange); ...
cJSON_Delete(root); free(data); if (res < 0) { return 1; } return 0; } 2、自定义话题消息 write_single_register (1)在rm_msgs文件夹中创建write_single_register.msg 文件,文件中消息类型定义如下: int8 port int32 address int16 data ...
{"op":"publish",(optional) "id": <string>,"topic":<string>,"msg":<json>} The publish command publishes a message on a topic. topic- the string name of the topic to publish to msg- the message to publish on the topic If the topic does not exist, then an error status message is...
msg import String message = String(data = 'Howdy') dictionary = message_converter.convert_ros_message_to_dictionary(message) Convert JSON to a ROS message from rospy_message_converter import json_message_converter from std_msgs.msg import String json_str = '{"data": "Hello"}' message = ...
YAML格式 JSON格式 ROSTemplateFormatVersion: '2015-09-01' Description: Test ECI ContainerGroup Parameters: VSwitch: AssociationProperty: ALIYUN::ECS::VSwitch::VSwitchId Type: String Label: zh-cn: 网络交换机ID en: VSwitch ID SecurityGroup: Type: String AssociationProperty: ALIYUN::ECS::SecurityGro...