Jo Hartingh

 

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euler angle

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Updated		File	Tags	Downloads (last 30 days)	Comments	Rating
05 Jan 2011		Function to Convert between DCM, Euler angles, Quaternions, and Euler vectors Function to convert rotation data between 4 types: DCM, Euler Angles, Quaternions, and Euler Param. Author: John Fuller	aerospace, 3d, euler angle, rotation, direction cosines, coordinate rotation	80	20	4.44444 4.4 | 9 ratings

Files Matching Jo's Watch List					1 - 1 of 1
Updated		File	Tags	Downloads (last 30 days)	Comments	Rating
05 Jan 2011		Function to Convert between DCM, Euler angles, Quaternions, and Euler vectors Function to convert rotation data between 4 types: DCM, Euler Angles, Quaternions, and Euler Param. Author: John Fuller	aerospace, 3d, euler angle, rotation, direction cosines, coordinate rotation	80	20	4.44444 4.4 | 9 ratings

Comments and Ratings Matching Jo's Watch List			1-5 of 24
Date	File	Comment by	Comments	Rating
17 Nov 2011	Function to Convert between DCM, Euler angles, Quaternions, and Euler vectors Function to convert rotation data between 4 types: DCM, Euler Angles, Quaternions, and Euler Param.	zhaopeng QIU		4
10 Oct 2011	Function to Convert between DCM, Euler angles, Quaternions, and Euler vectors Function to convert rotation data between 4 types: DCM, Euler Angles, Quaternions, and Euler Param.	Paul Koppen	Thanks for the code, it works great. Funny fact: the rotation matrix returned by the procrustes function in the Statistics Toolbox is quite often not orthogonal to eps.	5
05 Jan 2011	Function to Convert between DCM, Euler angles, Quaternions, and Euler vectors Function to convert rotation data between 4 types: DCM, Euler Angles, Quaternions, and Euler Param.	Paolo de Leva	This is even better: "DCM - 3x3xN multidimensional direction cosine matrix which performs coordinate system rotations by pre-multiplying column vectors (V_rot = DCM * V, where V_rot is V resolved in the rotated coordinate system)." Paolo de Leva	Comment only
05 Jan 2011	Function to Convert between DCM, Euler angles, Quaternions, and Euler vectors Function to convert rotation data between 4 types: DCM, Euler Angles, Quaternions, and Euler Param.	Paolo de Leva	I suggest this help text: "All rotation representations used by SpinCalc represent the rotation of the coordinate system." "DCM - 3x3xN multidimensional matrix which pre-multiplies column vectors to rotate the reference system in which they are represented." Paolo de Leva Paolo de Leva	Comment only
05 Jan 2011	Function to Convert between DCM, Euler angles, Quaternions, and Euler vectors Function to convert rotation data between 4 types: DCM, Euler Angles, Quaternions, and Euler Param.	John Fuller	Alright, I don't really have the time to go over semantics in the help text of my code. I can agree that the following block % DCM - 3x3xN multidimensional matrix which pre-multiplies a coordinate % frame column vector to rotate it to the desired new frame. might be better as % DCM - 3x3xN multidimensional matrix which pre-multiplies a coordinate % frame column vector to calculate its coordinates in the desired % new frame. But the fact still remains that the input DCM data remains the same. I wouldn't say it is highly misleading, but that it also can't be expected to teach every user the nuances of rotation linear algebra as you have illustrated. The code uses input and output in an accepted convention that 'most' serious users in my industry follow and understand, and it stands simply as that. As with all Matlab FEX code it is very important that the user vets code cautiously before use and knows what goes in and out by external testing. I will update the commenting above, but I'm not pursuing further modifications to SpinCalc because I believe it is well-accepted, heavily tested, and straightforward as it is. If you don't like that, rate it badly and don't use it. Thanks, John	Comment only