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what is a number in joint_states/positions[2] in rqt ?

asked 2017-01-19 11:23:09 -0600

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updated 2017-01-19 22:14:22 -0600

hi . For show plot of my robot I want use joint_states/positions[2]. what is 2 in command? The two refers to the third joint in URDF ?

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answered 2017-01-19 12:48:11 -0600

NEngelhard
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The two refers to the third joint, whose name you get at joints_states/name[2].

BTW: please invest some seconds in roughly correct spelling.

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The two refers to the third joint in URDF ??

zakizadeh ( 2017-01-19 22:13:35 -0600 )edit

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Yes. This is common in computer science and is referred to as 0-based indexing: https://en.wikipedia.org/wiki/Zero-ba...

ahendrix ( 2017-01-19 23:48:33 -0600 )edit

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Asked: 2017-01-19 11:23:09 -0600

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Last updated: Jan 19 '17

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