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You entered the OD groupoid family symbol: p(-4)11 { (-4^-) - -} [r,s]

The OD groupoid family parsed fine.

General OD Family Symbol

p (4) 11 
22--
4+
4-
 [r',s']   

Reduced general OD Family Symbol

p (4) 11 
22--
4+
4-
 [r',s']   

General Data

OD family of layers

Kinds of layers:N=1
Category:I (single)
Pointgroup:4 (S4)
Crystal system:tetragonal
Layer system:square
Common lattice:same
Common lattice size (rel. to global):1
Layer planes:(001)
c0(0,0,1)
Global lattice restriction:ab=0, |b|=|a|
User supplied lattice restriction:none
Lattice restriction derived from layers:ab=0, |b|=|a|

Layer Data

Layer 0:

Type:Layer group
Symbol:p(4)11
Crystal system:tetragonal
Layer system:square
Polarity:non-polar
Lattice restriction (instrinsic):ab=0, |b|=|a|
Lattice restriction (extrinsic):ab=0, |b|=|a|
Lattice (rel. to global):same
Lattice (rel. to common):same
Lattice size (rel. to global):1
Lattice size (rel. to common):1
Order (modulo lattice):4
Order (modulo global lattice):4
Order (modulo common lattice):4
Floating origin:0,0,0

Symmetry operations:

x,y,z1
y,-x,-z4+
-x,-y,z2
-y,x,-z4-

Special positions:

x,y,z
0,0,0
0,0,z

Centring vectors:

none

Special parameters

Special parameters for σ-POs (right)

  1. (general, reduced)
    Codes: general, reduced
    1. No subparameters.
  2. r'=r, s'=s (user)
    Codes: user-1
    1. No subparameters.
  3. r'=m/2, s'=n/2, m,n∈ℤ (special)
    Codes: nfz1-3-3 (2 [001] 0,0,z)
    1. m=0, n=0
    2. m=1, n=0
    3. m=0, n=1
    4. m=1, n=1
  4. r'=-m/2+n/2, s'=m/2+n/2, m,n∈ℤ (special)
    Codes: nfz2-3-3 (4+ [001] r'/2+s'/2,-r'/2+s'/2,1/2), nfz2-4-3 (4- [001] r'/2-s'/2,r'/2+s'/2,1/2)
    1. m=0, n=0
    2. m=0, n=1