Create layer

Description

This function creates a layer of components, specifically a monolayer, meaning the geometric center of each added copy of the parent systems will lie on the same surface.

The layer can either be spherical or flat, with the points evenly distributed across the surface. For spherical surfaces, the golden spiral method is used, while for flat surfaces, the space-filling curve is applied.

The density of points is determined by the combination of the cell size and the number of systems to insert. However, to prevent overlap due to random orientations of molecules, we ensure that no molecules are closer than the specified minimum distance input.

Periodic boundary conditions (PBCs) can be considered when calculating the distance between atoms.

Latest version

Allowed number of parents: 1 or 2

  1. System to be placed in layer

  2. System to be placed in layer

Parameter Description Value type Value restrictions Default value Units

Cell dimensions

The three cell lengths (x, y, z)

float

>0

[0.0, 0.0, 0.0]

Angstrom

The number of components

Total to insert. We have one entry number of for each parent component components (max 2)

int

≥0

0

N/A

Orientation

The orientation of the components to be inserted

selector

random, regular

regular

N/A

Curvature of the surface

The curvature of the surface. Can be either flat or spherical.

selector

flat, spherical

flat

N/A

Surface normal

Indicate the direction normal to the surface

selector

x, y, z

z

N/A

Surface radius

Indicate the radius of the spherical surface where the components will be placed

float

>0

0.0

Angstrom

Surface center

Indicate the center of the spherical surface where the components will be placed

float

any float

[0.0, 0.0, 0.0]

Angstrom

Minimal distance between atoms

Minimal distance between two inserted components.

float

>0

2.0

Angstrom

Periodic boundary conditions

Indicates whether we have periodic boundary conditions in x,y and z

boolean

True, False

[True, True, True]

N/A

Seed for random generation

The seed used in the random generator,-1 can be selected for a random seed

int

>-1

123

N/A