How to locate the source file of certain nodes?

asked 2016-08-01 07:39:04 -0500

I am working on TurtleBot now, and I want to get the motor data which is deeper than the published topic. So I need to find the source file of node "model_base_nodelet_manager". How can I find the package of this node? And how can I find the source file of it?

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