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what is xmlns tag for xacro?

asked 2017-01-12 07:14:55 -0600

shawnysh
339 ●10 ●14 ●26

updated 2017-01-12 07:18:49 -0600

what is xmlns tag for xacro?

Here is the tutorial of xacro

It is confusing for me to see the below code

<robot xmlns:sensor="http://playerstage.sourceforge.net/gazebo/xmlschema/#sensor"
       xmlns:controller="http://playerstage.sourceforge.net/gazebo/xmlschema/#controller"
       xmlns:interface="http://playerstage.sourceforge.net/gazebo/xmlschema/#interface"
       xmlns:xacro="http://playerstage.sourceforge.net/gazebo/xmlschema/#interface"
       name="pr2" >

Why linking to those paths?

When should I use this?

How should I write this?

I need a detailed explanation to it. I do not know what xmlns value I should assign to.

Thanks

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1 Answer

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answered 2017-01-12 07:38:07 -0600

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Some help: http://stackoverflow.com/questions/11... , http://www.w3schools.com/TAGs/att_htm...

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Comments

This is basically the answer.

xmlns is short for "XML NameSpace", and is a special XML construct that is expained in the links @VictorLamoine posted. @shawnysh: you can essentially consider them like import statements in the example you posted. But it's really an XML thing, not ROS specific.

gvdhoorn ( 2017-01-12 13:23:22 -0600 )edit

Thank @VictorLamoine and @gvdhoorn!!!

shawnysh ( 2017-01-14 05:08:14 -0600 )edit

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Asked: 2017-01-12 07:14:55 -0600

Seen: 2,776 times

Last updated: Jan 12 '17

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