rigid_body_motion.ros.play_publisher

rigid_body_motion.ros.play_publisher(publisher, step=1, speed=1.0, skip=None, timestamps=None)

Interactive widget for playing back messages from a publisher.

Parameters

publisher: object

Any object with a publish method that accepts an idx parameter and publishes a message corresponding to that index.

step: int, default 1

Difference in indexes between consecutive messages, e.g. if step=2 every second message will be published.

speed: float, default 1.0

Playback speed.

skip: int, optional

Number of messages to skip with the forward and backward buttons.

timestamps: array_like, datetime64 dtype, optional

Timestamps of publisher messages that determine time difference between messages and total number of messages. The time difference is calculated as the mean difference between the timestamps, i.e. it assumes that the timestamps are more or less regular. If not provided, the publisher must have a timestamps attribute which will be used instead.