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Why the dependencies in actionlib tutorial include "roslib"?

asked 2012-02-15 18:48:01 -0500

Mchaiiann gravatar image

In the introductary tutorial of actionlib package, the sand-box package is created with the dependency roslib. I check up the introduction of roslib package and realize that "roslib contains the definition of the ros::Time and ros::Duration objects used in roscpp and other ROS C++ libraries".

Then I opened a package, wrote a program, utilizing of the ros::Time and ros::Duration without the dependency of roslib. However it worked successfully.

Thus I'm wondering why the dependencies in actionlib tutorial include roslib.

Thanks for answering.

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answered 2012-02-15 22:51:02 -0500

dornhege gravatar image

roslib also contains python code.

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Is roslib not a library which implement ros::Time and ros::Duration? It seems we do not have to include that when we use ros::Time and ros::Duration. Thank you~

sam gravatar image sam  ( 2012-02-26 03:29:26 -0500 )edit

roslib is used for c++ and python. The wiki page explains this in more detail:

dornhege gravatar image dornhege  ( 2012-02-26 06:54:54 -0500 )edit

I have seen this page before, and I found that I didn't notice roscpp and rospy use different way to run roslib. Thank you for this hint.

sam gravatar image sam  ( 2012-02-26 13:31:03 -0500 )edit

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Asked: 2012-02-15 18:48:01 -0500

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Last updated: Feb 15 '12