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math/
matrix2quaternion.pro
top source matrix2quaternion
Math
result = matrix2quaternion(rotmatrix)
Transforms a rotation matrix into a quaternion.
Return value
The function returns the quaternion corresponding to the rotation specified by the rotation matrix.
Parameters
- rotmatrix in
A 3x3 rotation matrix.
Examples
IDL> theta=!PI/3.
IDL> rm = [[COS(theta),0,-SIN(theta)],[0,1,0],[SIN(theta),0,COS(theta)]]
IDL> quat = MATRIX2QUATERNION(rm)
IDL> PRINT, quat
0.00000 -0.50000 0.00000 0.866025
Author information
- History:
Written by: Jeremy Bailin 27 Nov 2008 Released in JBIU
File attributes
| Modification date: | Wed Apr 15 16:08:03 2009 |
| Lines: | 66 |