Quaternion to pitch yaw and roll

Dazzid

Hi All, I need to convert quaternion values to x-y-z coordinates of the object. I get the quaternion form Myo sensor, I know in the sdk they have the translation of quaternions, but I have the raw data recorded on a csv file, so I need to translate it. Any suggestion of the different transformation I can apply to quaternion, and extract for example rotation? I think if I can define pitch, yaw and roll then I can add acceleration values to a origin coordinate and then I will know how the object is moving and rotating. Thanks for the help. David

Chrisir

Can't you use the sdk in processing on the csv? Or is it more restricted?

jeremydouglass

@Dazzid -- If you need to do your own conversion, these resources might help:

• Previously written Processing quaternion class and a discussion of using it.
• There is also a Toxiclibs Quaternion class
• Previous forum posts: "quaternion"