ADF symmetry options

Square prism

Notes:

• Faces and corners are referred to using compass directions, with north oriented in the direction of positive y-axis.
• Options 2-5 can be understood as mirror symmetries.
• Symmetry options of sign moments were added in version 2.1.32.

Symmetry option	Equivalent surfaces	Equivalent corners	Symmetry axis
0, NO, NONE	-	-	-
1, ALL	W-S-E-N	NW-NE-SE-SW	-
2, NS, SN	N-S	NW-SW, NE-SE	from side E to side W
3, NESW, SWNE	N-E, S-W	SE-NW	from corner NE to corner SW
4, EW, WE	E-W	SW-SE, NW-NE	from side N to side S
5, NWSE, SWNE	N-W, S-E	NE-SW	from corner NW to SE

Hexagonal prisms

Notes:

• The face and corner directions are listed in Assembly discontinuity factors.
• The corner symmetries have been wrong prior to version 2.1.32. The list below corresponds to the correct values used since version 2.1.32.
• Symmetry options 8 and 9 were added in version 2.1.32.

Symmetry option	Equivalent surfaces	Equivalent corners	Symmetry axis	Note
0, NO, NONE	-	-	-
1, ALL, 30	1-2-3-4-5-6	1-2-3-4-5-6	-	useful for 30 degree periodic symmetric hexagonal lattices
2	2-6, 3-5	1-4, 2-3, 5-6	from side 1 to side 4
3	1-2, 3-6, 4-5	1-3, 4-6	from corner 2 to corner 5
4	1-3, 4-6	1-2, 3-6, 4-5	from side 2 to side 5
5	1-4, 2-3, 5-6	2-6, 3-5	from corner 1 to corner 4
6	2-4, 1-5	1-6, 2-5, 3-4	from side 3 to side 6
7	1-6, 2-5, 3-4	1-5, 2-4	from corner 3 to corner 6
8, 60	1-2-3-4-5-6	1-3-5, 2-4-6	-	useful for 60 degree periodic symmetric hexagonal lattices
9, 120	1-3-5, 2-4-6	1-3-5, 2-4-6	-	useful for 120 degree periodic symmetric hexagonal lattices