TUBERS
Tilting Using Basic Equation Relationship Software (TUBERS).
Calculation of tilt angle based on fractional coordinate for tilt a-a-b+ (Pnma), a-a-b+ (P21/n, 1:1 M), a0b-b- (I2/m, 1:1 M), and a0a0c- (I4/mcm) is available using
TUBERS. Calculates the octahedral tilt angle(s) based on bond distances and fractional coordinates.
See the SPuDS instruction manual for more details.