Sphere

Defines a spherical domain and a predicate whether a given position is inside or outside of the domain.

class halmd.mdsim.geometries.sphere(args)

Construct sphere geometry instance.

Parameters:

• args (table) – keyword arguments
• args.centre (table) – sphere centre
• args.radius (number) – sphere radius
• args.precision (string) –

  floating point precision (optional)

  The supported values for precision are single and double. If precision is not specified, the precision is selected according to the compute device: single for GPU computing and double otherwise.

Note

This module does not perform a validation of the meaningfulness of the domain, i.e. it does not test whether the geometry is placed outside the simulation domain.

centre

Coordinates of sphere centre.

radius

Sphere radius.