Name

find_inplane_to_match - Find the z rotation such that ZA RA is as close as possible to RB: the rotation ZA maximizes the trace of ( RB^T ZA RA) = trace(ZA RA RB^T)

Usage

• z-angle, tilt = find_inplane_to_match(phiA,thetaA,phiB,thetaB,psiA=0,psiB=0)

Input

phiA

first Euler of A rotation (z)

thetaA

second Euler of A rotation (y)

phiB

first Euler of B rotation (z)

thetaB

second Euler of B rotation (z)

psiA

optional

psiB

otpional

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Output

z-angle

the desired angle

tilt

the resulting tilt between the rotations

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Author / Maintainer

P. R. Baldwin

Keywords

category 1

UTILITIES

category 2

SPATIAL

Files

emdata_sparx.cpp (method symvol); utilities.py,

Maturity

stable

works for most people, has been tested.

Bugs

N one detected so far.