YAML / RosLaunch debug suggestion

Question

For some complicated Roslaunch setups, it can be tough to figure out where a parameter came from. I've added the following line to each YAML file and it helps me tremendously. The tag is "source" and the value is the YAML file name:

For example in arm.yaml: source: arm.yaml

When ROSLaunch executes, you'll see the parameters print out something like this and you can immediately tell where the params came from.

• /arbotix/joints/gripper_joint/max_angle: 0
• /arbotix/joints/gripper_joint/max_speed: 50
• /arbotix/source: arm.yaml
• /arbotix/write_rate: 25

Does anyone see a downside to this or better approach?

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Originally posted by corb on ROS Answers with karma: 339 on 2014-12-04

Post score: 0

Answer 1

I'd suggest bringing this up with the roslaunch SIG, where it can be discussed in detail. It may be possible to build a feature like this into roslaunch - a few other additions have been made recently to make launch files easier to understand and debug.

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Originally posted by Dan Lazewatsky with karma: 9115 on 2014-12-05

This answer was ACCEPTED on the original site

Post score: 1

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Original comments

Comment by corb on 2014-12-05:
Thanks - will do