Difference between revisions of "Rotations using quaternions"

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{{Navigation|before=[[Multiplication of quaternions]]|overview=[[Quaternions]]|next=[[Realization of transformations]]}}
 
{{Navigation|before=[[Multiplication of quaternions]]|overview=[[Quaternions]]|next=[[Realization of transformations]]}}
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[[File:quaternion-rpy.png|right|350px]]
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Usually rotations are defined by 3 angles, either [[Euler angles|Euler]] or [[Roll-Pitch-Yaw]] angles. So three successive rotations around three different axes lead to a combined rotation, that can be described by a single rotation matrix. Such a combined rotation is equal to a rotation around a certain axis in three-dimensional space about a certain angle. This is shown in the figure on the right. Using quaternions, a rotation
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Revision as of 14:28, 2 September 2015

← Back: Multiplication of quaternions Overview: Quaternions Next: Realization of transformations
Quaternion-rpy.png

Usually rotations are defined by 3 angles, either Euler or Roll-Pitch-Yaw angles. So three successive rotations around three different axes lead to a combined rotation, that can be described by a single rotation matrix. Such a combined rotation is equal to a rotation around a certain axis in three-dimensional space about a certain angle. This is shown in the figure on the right. Using quaternions, a rotation