no_op (NoOpSolver)#

Caution

work-in-progress

Backend: no_op ("no_op")

no reciprocal-space conversions

Example:

import hklpy2
SolverClass = hklpy2.get_solver("no_op")
noop_solver = SolverClass()

NoOpSolver(geometry, **kwargs)

"no_op" (any OS) no transformations.

class hklpy2.backends.no_op.NoOpSolver(geometry: str, **kwargs)[source]#

Bases: SolverBase

"no_op" (any OS) no transformations.

Solver that has no reciprocal space transformations.

Python Methods

`addReflection`(reflection)	Add coordinates of a diffraction condition (a reflection).
`calculate_UB`(r1, r2)	Calculate the UB (orientation) matrix with two reflections.
`extra_axis_names`	Ordered list of any extra axis names (such as x, y, z).
`forward`(pseudos)	Compute list of solutions(reals) from pseudos (hkl -> [angles]).
`geometries`()	Ordered list of the geometry names.
`inverse`(reals)	Compute tuple of pseudos from reals (angles -> hkl).
`pseudo_axis_names`	Ordered list of the pseudo axis names (such as h, k, l).
`real_axis_names`	Ordered list of the real axis names (such as th, tth).
`refineLattice`(reflections)	No refinement.
`removeAllReflections`()	Remove all reflections.

Python Properties

`geometry`	Diffractometer geometry.
`lattice`	Crystal lattice parameters.
`mode`	Diffractometer geometry operation mode for `forward()`.
`modes`	List of the geometry operating modes.
`sample`	Crystalline sample.

property UB#: Orientation matrix (3x3).

addReflection(reflection: Reflection)[source]#: Add coordinates of a diffraction condition (a reflection).

calculate_UB(r1, r2)[source]#

Calculate the UB (orientation) matrix with two reflections.

The method of Busing & Levy, Acta Cryst 22 (1967) 457.

property extra_axis_names#: Ordered list of any extra axis names (such as x, y, z).

forward(pseudos: dict) → list[dict[str, float]][source]#: Compute list of solutions(reals) from pseudos (hkl -> [angles]).

classmethod geometries()[source]#

Ordered list of the geometry names.

EXAMPLES:

>>> from hklpy2 import get_solver
>>> Solver = get_solver("no_op")
>>> Solver.geometries()
[]
>>> solver = Solver("TH TTH Q")
>>> solver.geometries()
[]

property geometry: str#: Diffractometer geometry.

inverse(reals: dict)[source]#: Compute tuple of pseudos from reals (angles -> hkl).

property lattice: object#: Crystal lattice parameters. (Not used by this Solver.)

property mode: str#

Diffractometer geometry operation mode for forward().

A mode defines which axes will be modified by the forward() computation.

property modes#: List of the geometry operating modes.

name = 'no_op'#: Name of this Solver.

property pseudo_axis_names#: Ordered list of the pseudo axis names (such as h, k, l).

property real_axis_names#: Ordered list of the real axis names (such as th, tth).

refineLattice(reflections: list[Reflection]) → None[source]#: No refinement.

removeAllReflections()[source]#: Remove all reflections.

property sample: object#: Crystalline sample.

version = '0.0.25.dev83+gf26812c'#: Version of this Solver.