# POINT

Section can be repeated.

Enables the possibility to use geometrical centers instead of single atoms to define colvars [Edit on GitHub]

## Keywords

- ATOMS

- TYPE

- WEIGHTS

- XYZ

## Keyword descriptions

ATOMS: integer[ ]

  Keyword can be repeated.

  Usage: ATOMS {integer} {integer} {integer} {integer}

  Specifies the indexes of atoms defining the geometrical center [Edit on GitHub]

TYPE: enum = GEO_CENTER

  Usage: type (GEO_CENTER|FIX_POINT)

  Valid values:

  - `GEO_CENTER` Computes the geometrical center of the listed atoms

  - `FIX_POINT` Defines a fixed point in space

  Chooses the type of geometrical point [Edit on GitHub]

WEIGHTS: real[ ]

  Keyword can be repeated.

  Usage: WEIGHTS {real} {real} {real} {real}

  Specifies the weights for a weighted geometrical center. Default is 1/natoms for every atom [Edit on GitHub]

XYZ: real[3] = [bohr]

  Usage: XYZ {real} {real} {real}

  Specifies the xyz of the fixed point (if the case) [Edit on GitHub]