Message format rosbridge v2.0

rosbridge

asked 2013-02-04 03:58:54 -0500

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Hi, I have to publish on topic \cmd_vel a message:'{"linear":{"x":1,"y":0,"z":0}, "angular":{"x":0,"y":0,"z":0}}', of the type geometry_msgs/Twist using rosbridge v2.0. I have written: connection = new ros.Connection("ws://localhost:9090"); connection.publish('/cmd_vel', 'geometry_msgs/Twist', '{"linear":{"x":1,"y":0,"z":0}, "angular":{"x":0,"y":0,"z":0}}'); But the format message is for rosbridge v1.0. What I can write to publish the same message in the correct format of rosbridge v2.0? Thanks a lot!
Chiara

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answered 2013-02-04 20:42:10 -0500

This post is a wiki. Anyone with karma >75 is welcome to improve it.

You could refer to the following rosjs example, https://github.com/RobotWebTools/keyboardteleopjs/blob/groovy-devel/keyboardteleop.js

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answered 2013-02-04 22:16:45 -0500

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Thank you, i tried with:

But the console of java script says me that in the line: var cmdVel = new ros.Topic({ there is: Uncaught TypeError: undefined is not a function Do you say what it means?