Suppose I have an orientation as roll, pitch, yaw. How can I transform it into quaternion?

quaternion

asked 2015-03-16 09:41:25 -0500

oogabooga

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updated 2015-03-16 09:42:28 -0500

I am trying to represent a point (x,y,theta) as a quaternion. What is the easiest way to do that?

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answered 2015-03-16 12:57:02 -0500

tfoote

58457 ●128 ●550 ●526 http://www.ros.org/

There are many libraries which can do that for you. Bullet, KDL, and Eigen all have methods. There's a summary of available methods here

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answered 2015-03-17 03:59:14 -0500

oogabooga

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Thanks. I am aware of those methods. So I am doing it something like this and I hope that this does the job of transforming RPY into Quaternion. Is there any other way to do this?

tf:: Quaternion rotation_rpy;
rotation_rpy.setRPY(x,y, theta);
geometry_msgs::Quaternion rotation_quat;
tf::quaternionTFToMsg(rotation_rpy, rotation_quat);

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Try this

geometry_msgs::Quaternion quat = tf::createQuaternionMsgFromRollPitchYaw(roll, pitch, yaw);

Chaos ( 2015-03-17 04:03:35 -0500 )edit

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Suppose I have an orientation as roll, pitch, yaw. How can I transform it into quaternion?

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Suppose I have an orientation as roll, pitch, yaw. How can I transform it into quaternion?