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ros 2 parameter design

asked 2018-05-28 06:54:47 -0500

Skyking gravatar image

HI,

How will a ros 2 node using parameters, be notified regarding any change in its parameters values ? Will it be through using the register_param_change_callback(callback T) funtion ? Is there any demo examples using this ?

Thank you for your help.

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answered 2018-05-29 01:56:19 -0500

tfoote gravatar image

updated 2018-05-29 01:59:09 -0500

There's a similar API on the parameter clients method 'on_parameter_event' that I'd recommend looking at for subscribing to parameter events.

You can see an example of using it in conjunction with the ParameterEventsFilter helper class in the TimeSource implementation

The register_param_change_callback should also work directly on the node object.

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Asked: 2018-05-28 06:54:47 -0500

Seen: 299 times

Last updated: May 29 '18