vectorToFieldAngle#
- lsst.cbp.coordUtils.vectorToFieldAngle(vec, flipX)#
Convert a vector to a pupil field angle.
Parameters#
- vecsequence of 3
float 3-dimensional vector in the pupil frame; the magnitude is ignored, but must be large enough to compute an accurate unit vector.
- flipXbool
Set True if the x axis of the focal plane is flipped with respect to the pupil.
Returns#
- fieldAngle
tupleof 2float x,y pupil field angle (radians).
- vecsequence of 3