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dxtbx.model.crystal

class dxtbx.model.Crystal

Bases: dxtbx_model_ext.CrystalBase

as_str(show_scan_varying=False)

static from_dict(d)

Convert the dictionary to a crystal model

Params:

d The dictionary of parameters

Returns:The crystal model

get_crystal_symmetry(assert_is_compatible_unit_cell=True)

show(show_scan_varying=False, out=None)

to_dict()

Convert the crystal model to a dictionary

Returns:A dictionary of the parameters

class dxtbx.model.MosaicCrystalKabsch2010

Bases: dxtbx_model_ext.Crystal

as_str(show_scan_varying=False)

classmethod from_dict(d)

Convert the dictionary to a crystal model

Params:

d The dictionary of parameters

Returns:The crystal model

get_mosaicity((MosaicCrystalKabsch2010)arg1[, (object)deg=True]) → float :

C++ signature :

double get_mosaicity(dxtbx::model::MosaicCrystalKabsch2010 {lvalue} [,bool=True])

is_similar_to((MosaicCrystalKabsch2010)arg1, (CrystalBase)other[, (object)angle_tolerance=0.01[, (object)uc_rel_length_tolerance=0.01[, (object)uc_abs_angle_tolerance=1.0[, (object)mosaicity_tolerance=0.8]]]]) → bool :

C++ signature :

bool is_similar_to(dxtbx::model::MosaicCrystalKabsch2010 {lvalue},dxtbx::model::CrystalBase [,double=0.01 [,double=0.01 [,double=1.0 [,double=0.8]]]])

set_mosaicity((MosaicCrystalKabsch2010)arg1, (object)mosaicity[, (object)deg=True]) → None :

C++ signature :

void set_mosaicity(dxtbx::model::MosaicCrystalKabsch2010 {lvalue},double [,bool=True])

to_dict()

Convert the crystal model to a dictionary

Returns:A dictionary of the parameters

class dxtbx.model.MosaicCrystalSauter2014

Bases: dxtbx_model_ext.Crystal

as_str(show_scan_varying=False)

classmethod from_dict(d)

Convert the dictionary to a crystal model

Params:

d The dictionary of parameters

Returns:The crystal model

get_A_as_sqr()

get_A_inverse_as_sqr()

get_domain_size_ang((MosaicCrystalSauter2014)arg1) → float :

C++ signature :

double get_domain_size_ang(dxtbx::model::MosaicCrystalSauter2014 {lvalue})

get_half_mosaicity_deg((MosaicCrystalSauter2014)arg1) → float :

C++ signature :

double get_half_mosaicity_deg(dxtbx::model::MosaicCrystalSauter2014 {lvalue})

is_similar_to((MosaicCrystalSauter2014)arg1, (CrystalBase)other[, (object)angle_tolerance=0.01[, (object)uc_rel_length_tolerance=0.01[, (object)uc_abs_angle_tolerance=1.0[, (object)half_mosaicity_tolerance=0.4[, (object)domain_size_tolerance=1.0]]]]]) → bool :

C++ signature :

bool is_similar_to(dxtbx::model::MosaicCrystalSauter2014 {lvalue},dxtbx::model::CrystalBase [,double=0.01 [,double=0.01 [,double=1.0 [,double=0.4 [,double=1.0]]]]])

set_domain_size_ang((MosaicCrystalSauter2014)arg1, (object)domain_size_ang) → None :

C++ signature :

void set_domain_size_ang(dxtbx::model::MosaicCrystalSauter2014 {lvalue},double)

set_half_mosaicity_deg((MosaicCrystalSauter2014)arg1, (object)half_mosaicity_deg) → None :

C++ signature :

void set_half_mosaicity_deg(dxtbx::model::MosaicCrystalSauter2014 {lvalue},double)

to_dict()

Convert the crystal model to a dictionary

Returns:A dictionary of the parameters

class dxtbx.model.crystal.CrystalFactory

Bases: object

static from_dict(d, t=None)

Convert the dictionary to a crystal model

Params:

d The dictionary of parameters t The template dictionary to use

Returns:The crystal model

static from_mosflm_matrix(mosflm_A_matrix, unit_cell=None, wavelength=None, space_group=None)

Create a crystal_model from a Mosflm A matrix (a*, b*, c*); N.B. assumes the mosflm coordinate frame:

                                   /!
      Y-axis                      / !
        ^                        /  !
        !                       /   !
        !                      /    !
        !   /                 /  Xd !
        !  /                 / * ^  !
        ! /                  ! 3 !  !
        !/      X-ray beam   !   !  !
        /------------------------/--!---->X-axis
       /                     !  / *1!
    <-/-                     ! /    !
     / \+ve phi             ! Yd  /
    /   /                    ! 2  /
   /                         ! * /
  Z-axis                  Ys ^ _/
Rotation                     ! /| Xs
 axis                        !/
                             O

Also assume that the mosaic spread is 0.

Parameters:

• mosflm_A_matrix (tuple of floats) – The A matrix in Mosflm convention.
• unit_cell (cctbx.uctbx.unit_cell) – The unit cell parameters which are used to determine the wavelength from the Mosflm A matrix.
• wavelength (float) – The wavelength to scale the A matrix
• space_group (cctbx.sgtbx.space_group) – If the space group is None then the space_group will be assigned as P1

Returns:

A crystal model derived from the given Mosflm A matrix

Return type:

crystal_model