View source for ADF symmetry options

== Square prism ==

<u>Notes:</u>

*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 6 were added in version 2.1.32.

{|class="wikitable" style="text-align: left;"
! Symmetry option
! Equivalent surfaces
! Equivalent corners
! Equivalent sign moments
! Zero sign moments
! Symmetry axis
|-  
| <tt>0, NO, NONE</tt>
| -
| -
| -
| -
| -
|-  
| <tt>1, FULL</tt>
| W-S-E-N
| NW-NE-SE-SW
| -
| N, W, S, E
| -
|- 
| <tt>2, NS, SN</tt>
| N-S 
| NW-SW, NE-SE
| N-S
| W, E
| from side E to side W
|- 
| <tt>3, NESW, SWNE</tt>
| N-E, S-W 
| SE-NW
| N-E, S-W
| -
| from corner NE to corner SW
|- 
| <tt>4, EW, WE</tt>
| E-W 
| SW-SE, NW-NE
| E-W
| N, S
| from side N to side S
|- 
| <tt>5, NWSE, SENW</tt>
| N-W, S-E 
| NE-SW
| N-W, S-E
| -
| from corner NW to SE
|- 
| <tt>6, NSEW, EWNS</tt>
| N-S, E-W
| NW-NE-SE-SW
| N-S, E-W
| -
| -
|}

== Hexagonal prisms ==

<u>Notes:</u>

*The face and corner directions are listed in [[Output_parameters#Assembly_discontinuity_factors|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.
*Options 2-7 can be understood as mirror symmetries.
*Sign moments are only scored for [[Surface_types#Regular_prisms|X-type infinite/truncated hexagonal prisms]] (not Y-type).

{|class="wikitable" style="text-align: left;"
! Symmetry option
! Equivalent surfaces
! Equivalent corners
! Equivalent sign moments
! Zero sign moments
! Symmetry axis
! Note
|-  
| <tt>0, NO, NONE</tt>
| -
| -
| -
| -
| -
|
|-  
| <tt>1, FULL, 30</tt>
| 1-2-3-4-5-6
| 1-2-3-4-5-6
| -
| 1, 2, 3, 4, 5, 6
| -
| useful for 30 degree reflective symmetric hexagonal lattices
|-
| <tt>2</tt>
| 2-6, 3-5
| 1-4, 2-3, 5-6
| 2-6, 3-5
| 1, 4
| from side 1 to side 4
|
|-
| <tt>3</tt>
| 1-2, 3-6, 4-5
| 1-3, 4-6
| 1-2, 3-6, 4-5
| -
| from corner 2 to corner 5
|
|-
| <tt>4</tt>
| 1-3, 4-6
| 1-2, 3-6, 4-5
| 1-3, 4-6
| 2, 5
| from side 2 to side 5
|
|-
| <tt>5</tt>
| 1-4, 2-3, 5-6
| 2-6, 3-5
| 1-4, 2-3, 5-6
| -
| from corner 1 to corner 4
|
|-
| <tt>6</tt>
| 2-4, 1-5
| 1-6, 2-5, 3-4
| 2-4, 1-5
| 3, 6
| from side 3 to side 6
|
|-
| <tt>7</tt>
| 1-6, 2-5, 3-4
| 1-5, 2-4
| 1-6, 2-5, 3-4
| -
| from corner 3 to corner 6
|
|-
| <tt>8, 60</tt>
| 1-2-3-4-5-6
| 1-2-3-4-5-6
| 1-2-3-4-5-6
| -
| -
| useful for 60 degree periodic symmetric hexagonal lattices
|-
| <tt>9, 120</tt>
| 1-3-5, 2-4-6
| 1-3-5, 2-4-6
| 1-3-5, 2-4-6
| -
| -
| useful for 120 degree periodic symmetric hexagonal lattices
|}

[[Category:Input]]