コード例 #1
0
ファイル: modulation.py プロジェクト: mgtekns/cogue
    def _run(self):
        self._set_best_arguments_of_vectors_and_supercell()
        max_num_op = 0
        best_cells = []
        points_on_sphere = []
        for i, point in enumerate(self._get_all_points_on_sphere()):
            modcell = self._get_cell_with_modulation(
                self._get_modulation(point))
            symmetry = get_symmetry_dataset(modcell,
                                            tolerance=self._symmetry_tolerance)

            if self._store_all:
                self._all_cells.append(modcell)

            refined_cell = get_crystallographic_cell(
                modcell, tolerance=self._symmetry_tolerance)
            num_op = len(symmetry['rotations'])
            if num_op > max_num_op:
                max_num_op = num_op
                best_cells = [refined_cell]
                points_on_sphere = [point.copy()]
            if num_op == max_num_op:
                is_found = True
                for bc in best_cells:
                    if xtal_compare(bc,
                                    refined_cell,
                                    tolerance=self._symmetry_tolerance,
                                    angle_tolerance=1.0):
                        is_found = False
                        break
                if is_found:
                    best_cells.append(refined_cell)
                    points_on_sphere.append(point.copy())

        self._points_on_sphere = points_on_sphere
コード例 #2
0
 def _find_equivalent_crystal_structure(self, cell):
     for tid in self._ancestral_cells:
         if xtal_compare(self._ancestral_cells[tid],
                         cell,
                         tolerance=self._symmetry_tolerance,
                         angle_tolerance=1.0):
             return tid
     return 0
コード例 #3
0
ファイル: phonon_relax.py プロジェクト: mgtekns/cogue
 def _find_equivalent_crystal_structure(self, cell):
     for tid in self._ancestral_cells:
         if xtal_compare(self._ancestral_cells[tid],
                         cell,
                         tolerance=self._symmetry_tolerance,
                         angle_tolerance=1.0):
             return tid
     return 0
コード例 #4
0
ファイル: modulation.py プロジェクト: mgtekns/cogue
    def _run(self):
        self._set_vectors_and_supercell()
        max_num_op = 0
        best_cells = []
        best_spacegroup_types = []
        points_on_sphere = []
        phase_shifts = self._get_phase_shifts_at_lattice_points()
        for point in self._get_phases():
            modulation = self._get_modulation(point)
            for phase in phase_shifts:
                amplitude = self._get_normalize_amplitude(modulation / phase)
                modcell = self._get_cell_with_modulation(
                    modulation / phase * amplitude)
                symmetry = get_symmetry_dataset(
                    modcell, tolerance=self._symmetry_tolerance)
    
                num_op = len(symmetry['rotations'])
                if num_op > max_num_op:
                    max_num_op = num_op
                    best_cells = [modcell]
                    best_spacegroup_types = [symmetry['number']]
                    points_on_sphere = [[point, phase, amplitude]]
    
                elif num_op == max_num_op:
                    if symmetry['number'] in best_spacegroup_types:
                        cell_in_best_cells = False
                        for bc in best_cells:
                            if xtal_compare(
                                bc,
                                modcell,
                                tolerance=self._symmetry_tolerance,
                                angle_tolerance=1.0):
                                cell_in_best_cells = True
                                break
                                
                        if not cell_in_best_cells:
                            best_cells.append(modcell)
                            points_on_sphere.append([point, phase, amplitude])
                    else:
                        best_cells.append(modcell)
                        points_on_sphere.append([point, phase, amplitude])
                        best_spacegroup_types.append(symmetry['number'])

        self._points_on_sphere = points_on_sphere
コード例 #5
0
ファイル: modulation.py プロジェクト: mgtekns/cogue
    def _run(self):
        self._set_vectors_and_supercell()
        max_num_op = 0
        best_cells = []
        best_spacegroup_types = []
        points_on_sphere = []
        phase_shifts = self._get_phase_shifts_at_lattice_points()
        for point in self._get_phases():
            modulation = self._get_modulation(point)
            for phase in phase_shifts:
                amplitude = self._get_normalize_amplitude(modulation / phase)
                modcell = self._get_cell_with_modulation(modulation / phase *
                                                         amplitude)
                symmetry = get_symmetry_dataset(
                    modcell, tolerance=self._symmetry_tolerance)

                num_op = len(symmetry['rotations'])
                if num_op > max_num_op:
                    max_num_op = num_op
                    best_cells = [modcell]
                    best_spacegroup_types = [symmetry['number']]
                    points_on_sphere = [[point, phase, amplitude]]

                elif num_op == max_num_op:
                    if symmetry['number'] in best_spacegroup_types:
                        cell_in_best_cells = False
                        for bc in best_cells:
                            if xtal_compare(bc,
                                            modcell,
                                            tolerance=self._symmetry_tolerance,
                                            angle_tolerance=1.0):
                                cell_in_best_cells = True
                                break

                        if not cell_in_best_cells:
                            best_cells.append(modcell)
                            points_on_sphere.append([point, phase, amplitude])
                    else:
                        best_cells.append(modcell)
                        points_on_sphere.append([point, phase, amplitude])
                        best_spacegroup_types.append(symmetry['number'])

        self._points_on_sphere = points_on_sphere
コード例 #6
0
ファイル: modulation.py プロジェクト: mgtekns/cogue
    def _run(self):
        self._set_best_arguments_of_vectors_and_supercell()
        max_num_op = 0
        best_cells = []
        points_on_sphere = []
        for i, point in enumerate(self._get_all_points_on_sphere()):
            modcell = self._get_cell_with_modulation(
                self._get_modulation(point))
            symmetry = get_symmetry_dataset(
                modcell, tolerance=self._symmetry_tolerance)

            if self._store_all:
                self._all_cells.append(modcell)

            refined_cell = get_crystallographic_cell(
                modcell,
                tolerance=self._symmetry_tolerance)
            num_op = len(symmetry['rotations'])
            if num_op > max_num_op:
                max_num_op = num_op
                best_cells = [refined_cell]
                points_on_sphere = [point.copy()]
            if num_op == max_num_op:
                is_found = True
                for bc in best_cells:
                    if xtal_compare(bc,
                                    refined_cell,
                                    tolerance=self._symmetry_tolerance,
                                    angle_tolerance=1.0):
                        is_found = False
                        break
                if is_found:
                    best_cells.append(refined_cell)
                    points_on_sphere.append(point.copy())

        self._points_on_sphere = points_on_sphere