Maths - Conversion Quaternion to Euler

Maths - Conversion Quaternion to Euler - Forum

By: Nobody/Anonymous - nobody
Conversion Quaternion to Euler
2005-01-20 06:30

http://www.euclideanspace.com/maths/geometry/rotations/conversions/quaternionToEuler/index.htm

in the 2nd code example (non-normalised quaternion) these 4 lines need to be moved to beginning of function:

double sqw = q1.w*q1.w;
double sqx = q1.x*q1.x;
double sqy = q1.y*q1.y;
double sqz = q1.z*q1.z;

ie to above this line which references them:
double unit = sqx + sqy + sqz + sqw;
// if normalised is one, otherwise is correction factor

great site by the way, keep up the good work.

By: Martin Baker - martinbaker
RE: Conversion Quaternion to Euler
2005-01-20 08:58

Thanks again,

Martin

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