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Python core.Lattice类代码示例

原作者: [db:作者] 来自: [db:来源] 收藏 邀请

本文整理汇总了Python中pymatgen.core.Lattice的典型用法代码示例。如果您正苦于以下问题:Python Lattice类的具体用法?Python Lattice怎么用?Python Lattice使用的例子?那么恭喜您, 这里精选的类代码示例或许可以为您提供帮助。



在下文中一共展示了Lattice类的20个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于我们的系统推荐出更棒的Python代码示例。

示例1: test_disordered_primitive_to_ordered_supercell

    def test_disordered_primitive_to_ordered_supercell(self):
        sm_atoms = StructureMatcher(ltol=0.2, stol=0.3, angle_tol=5,
                                    primitive_cell=False, scale=True,
                                    attempt_supercell=True,
                                    allow_subset=True,
                                    supercell_size = 'num_atoms',
                                    comparator=OrderDisorderElementComparator())
        sm_sites = StructureMatcher(ltol=0.2, stol=0.3, angle_tol=5,
                                    primitive_cell=False, scale=True,
                                    attempt_supercell=True,
                                    allow_subset=True,
                                    supercell_size = 'num_sites',
                                    comparator=OrderDisorderElementComparator())
        lp = Lattice.orthorhombic(10, 20, 30)
        pcoords = [[0,   0,   0],
                   [0.5, 0.5, 0.5]]
        ls = Lattice.orthorhombic(20,20,30)
        scoords = [[0,    0,   0],
                   [0.75, 0.5, 0.5]]
        prim = Structure(lp, [{'Na':0.5}, {'Cl':0.5}], pcoords)
        supercell = Structure(ls, ['Na', 'Cl'], scoords)
        supercell.make_supercell([[-1,1,0],[0,1,1],[1,0,0]])

        self.assertFalse(sm_sites.fit(prim, supercell))
        self.assertTrue(sm_atoms.fit(prim, supercell))

        self.assertRaises(ValueError, sm_atoms.get_s2_like_s1, prim, supercell)
        self.assertEqual(len(sm_atoms.get_s2_like_s1(supercell, prim)), 4)
开发者ID:eantono,项目名称:pymatgen,代码行数:28,代码来源:test_structure_matcher.py


示例2: test_ordered_primitive_to_disordered_supercell

    def test_ordered_primitive_to_disordered_supercell(self):
        sm_atoms = StructureMatcher(ltol=0.2, stol=0.3, angle_tol=5,
                                    primitive_cell=False, scale=True,
                                    attempt_supercell=True,
                                    allow_subset=True,
                                    supercell_size = 'num_atoms',
                                    comparator=OrderDisorderElementComparator())
        sm_sites = StructureMatcher(ltol=0.2, stol=0.3, angle_tol=5,
                                    primitive_cell=False, scale=True,
                                    attempt_supercell=True,
                                    allow_subset=True,
                                    supercell_size = 'num_sites',
                                    comparator=OrderDisorderElementComparator())
        lp = Lattice.orthorhombic(10, 20, 30)
        pcoords = [[0,   0,   0],
                   [0.5, 0.5, 0.5]]
        ls = Lattice.orthorhombic(20,20,30)
        scoords = [[0,    0,   0],
                   [0.5,  0,   0],
                   [0.25, 0.5, 0.5],
                   [0.75, 0.5, 0.5]]
        s1 = Structure(lp, ['Na', 'Cl'], pcoords)
        s2 = Structure(ls, [{'Na':0.5}, {'Na':0.5}, {'Cl':0.5}, {'Cl':0.5}], scoords)

        self.assertTrue(sm_sites.fit(s1, s2))
        self.assertFalse(sm_atoms.fit(s1, s2))
开发者ID:eantono,项目名称:pymatgen,代码行数:26,代码来源:test_structure_matcher.py


示例3: test_get_supercell_size

    def test_get_supercell_size(self):
        l = Lattice.cubic(1)
        l2 = Lattice.cubic(0.9)
        s1 = Structure(l, ['Mg', 'Cu', 'Ag', 'Cu', 'Ag'], [[0]*3]*5)
        s2 = Structure(l2, ['Cu', 'Cu', 'Ag'], [[0]*3]*3)

        sm = StructureMatcher(supercell_size='volume')
        self.assertEqual(sm._get_supercell_size(s1, s2),
                         (1, True))
        self.assertEqual(sm._get_supercell_size(s2, s1),
                         (1, True))

        sm = StructureMatcher(supercell_size='num_sites')
        self.assertEqual(sm._get_supercell_size(s1, s2),
                         (2, False))
        self.assertEqual(sm._get_supercell_size(s2, s1),
                         (2, True))

        sm = StructureMatcher(supercell_size='Ag')
        self.assertEqual(sm._get_supercell_size(s1, s2),
                         (2, False))
        self.assertEqual(sm._get_supercell_size(s2, s1),
                         (2, True))

        sm = StructureMatcher(supercell_size='wfieoh')
        self.assertRaises(ValueError, sm._get_supercell_size, s1, s2)
开发者ID:Lightslayer,项目名称:pymatgen,代码行数:26,代码来源:test_structure_matcher.py


示例4: test_fit

    def test_fit(self):
        """
        Take two known matched structures
            1) Ensure match
            2) Ensure match after translation and rotations
            3) Ensure no-match after large site translation
            4) Ensure match after site shuffling
            """
        sm = StructureMatcher()

        self.assertTrue(sm.fit(self.struct_list[0], self.struct_list[1]))

        # Test rotational/translational invariance
        op = SymmOp.from_axis_angle_and_translation([0, 0, 1], 30, False,
                                                    np.array([0.4, 0.7, 0.9]))
        self.struct_list[1].apply_operation(op)
        self.assertTrue(sm.fit(self.struct_list[0], self.struct_list[1]))

        #Test failure under large atomic translation
        self.struct_list[1].translate_sites([0], [.4, .4, .2],
                                            frac_coords=True)
        self.assertFalse(sm.fit(self.struct_list[0], self.struct_list[1]))

        self.struct_list[1].translate_sites([0], [-.4, -.4, -.2],
                                            frac_coords=True)
        # random.shuffle(editor._sites)
        self.assertTrue(sm.fit(self.struct_list[0], self.struct_list[1]))
        #Test FrameworkComporator
        sm2 = StructureMatcher(comparator=FrameworkComparator())
        lfp = self.get_structure("LiFePO4")
        nfp = self.get_structure("NaFePO4")
        self.assertTrue(sm2.fit(lfp, nfp))
        self.assertFalse(sm.fit(lfp, nfp))

        #Test anonymous fit.
        self.assertEqual(sm.fit_anonymous(lfp, nfp), True)
        self.assertAlmostEqual(sm.get_rms_anonymous(lfp, nfp)[0],
                               0.060895871160262717)

        #Test partial occupancies.
        s1 = Structure(Lattice.cubic(3),
                       [{"Fe": 0.5}, {"Fe": 0.5}, {"Fe": 0.5}, {"Fe": 0.5}],
                       [[0, 0, 0], [0.25, 0.25, 0.25],
                        [0.5, 0.5, 0.5], [0.75, 0.75, 0.75]])
        s2 = Structure(Lattice.cubic(3),
                       [{"Fe": 0.25}, {"Fe": 0.5}, {"Fe": 0.5}, {"Fe": 0.75}],
                       [[0, 0, 0], [0.25, 0.25, 0.25],
                        [0.5, 0.5, 0.5], [0.75, 0.75, 0.75]])
        self.assertFalse(sm.fit(s1, s2))
        self.assertFalse(sm.fit(s2, s1))
        s2 = Structure(Lattice.cubic(3),
                       [{"Mn": 0.5}, {"Mn": 0.5}, {"Mn": 0.5},
                        {"Mn": 0.5}],
                       [[0, 0, 0], [0.25, 0.25, 0.25],
                        [0.5, 0.5, 0.5], [0.75, 0.75, 0.75]])
        self.assertEqual(sm.fit_anonymous(s1, s2), True)

        self.assertAlmostEqual(sm.get_rms_anonymous(s1, s2)[0], 0)
开发者ID:eantono,项目名称:pymatgen,代码行数:58,代码来源:test_structure_matcher.py


示例5: setUp

 def setUp(self):
     c1 = [[0.5] * 3, [0.9] * 3]
     c2 = [[0.5] * 3, [0.9, 0.1, 0.1]]
     s1 = Structure(Lattice.cubic(5), ['Si', 'Si'], c1)
     s2 = Structure(Lattice.cubic(5), ['Si', 'Si'], c2)
     structs = []
     for s in s1.interpolate(s2, 3, pbc=True):
         structs.append(Structure.from_sites(s.sites, to_unit_cell=True))
     self.structures = structs
     self.vis = MITNEBSet(self.structures)
开发者ID:matk86,项目名称:pymatgen,代码行数:10,代码来源:test_sets.py


示例6: test_get_lattices

    def test_get_lattices(self):
        sm = StructureMatcher(ltol=0.2, stol=0.3, angle_tol=5, primitive_cell=True, scale=True, attempt_supercell=False)
        l1 = Lattice.from_lengths_and_angles([1, 2.1, 1.9], [90, 89, 91])
        l2 = Lattice.from_lengths_and_angles([1.1, 2, 2], [89, 91, 90])
        s1 = Structure(l1, [], [])
        s2 = Structure(l2, [], [])

        lattices = list(sm._get_lattices(s=s1, target_lattice=s2.lattice))
        self.assertEqual(len(lattices), 16)

        l3 = Lattice.from_lengths_and_angles([1.1, 2, 20], [89, 91, 90])
        s3 = Structure(l3, [], [])

        lattices = list(sm._get_lattices(s=s1, target_lattice=s3.lattice))
        self.assertEqual(len(lattices), 0)
开发者ID:dcossey014,项目名称:pymatgen,代码行数:15,代码来源:test_structure_matcher.py


示例7: test_subset

    def test_subset(self):
        sm = StructureMatcher(
            ltol=0.2,
            stol=0.3,
            angle_tol=5,
            primitive_cell=False,
            scale=True,
            attempt_supercell=False,
            allow_subset=True,
        )
        l = Lattice.orthorhombic(10, 20, 30)
        s1 = Structure(l, ["Si", "Si", "Ag"], [[0, 0, 0.1], [0, 0, 0.2], [0.7, 0.4, 0.5]])
        s2 = Structure(l, ["Si", "Ag"], [[0, 0.1, 0], [-0.7, 0.5, 0.4]])
        result = sm.get_s2_like_s1(s1, s2)

        self.assertEqual(len(find_in_coord_list_pbc(result.frac_coords, [0, 0, 0.1])), 1)
        self.assertEqual(len(find_in_coord_list_pbc(result.frac_coords, [0.7, 0.4, 0.5])), 1)

        # test with fewer species in s2
        s1 = Structure(l, ["Si", "Ag", "Si"], [[0, 0, 0.1], [0, 0, 0.2], [0.7, 0.4, 0.5]])
        s2 = Structure(l, ["Si", "Si"], [[0, 0.1, 0], [-0.7, 0.5, 0.4]])
        result = sm.get_s2_like_s1(s1, s2)
        mindists = np.min(s1.lattice.get_all_distances(s1.frac_coords, result.frac_coords), axis=0)
        self.assertLess(np.max(mindists), 1e-6)

        self.assertEqual(len(find_in_coord_list_pbc(result.frac_coords, [0, 0, 0.1])), 1)
        self.assertEqual(len(find_in_coord_list_pbc(result.frac_coords, [0.7, 0.4, 0.5])), 1)

        # test with not enough sites in s1
        # test with fewer species in s2
        s1 = Structure(l, ["Si", "Ag", "Cl"], [[0, 0, 0.1], [0, 0, 0.2], [0.7, 0.4, 0.5]])
        s2 = Structure(l, ["Si", "Si"], [[0, 0.1, 0], [-0.7, 0.5, 0.4]])
        self.assertEqual(sm.get_s2_like_s1(s1, s2), None)
开发者ID:dcossey014,项目名称:pymatgen,代码行数:33,代码来源:test_structure_matcher.py


示例8: test_writestring

 def test_writestring(self):
     # Test for the string export of s atructure into the exciting input xml schema
     input_string = (
         '<input xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" '
         'xsi:noNamespaceSchemaLocation="http://xml.exciting-code.org/excitinginput'
         '.xsd">\n  <title>Na4 Cl4</title>\n  <structure speciespath="./">\n    '
         '<crystal scale="1.8897543768634038">\n      <basevect>      5.62000000'
         '       0.00000000       0.00000000</basevect>\n      <basevect>      '
         '0.00000000       5.62000000       0.00000000</basevect>\n      '
         '<basevect>      0.00000000       0.00000000       5.62000000</basevect>'
         '\n    </crystal>\n    <species speciesfile="Na.xml">\n      <atom coord='
         '"      0.00000000       0.00000000       0.00000000" />\n      <atom coor'
         'd="      0.50000000       0.50000000       0.00000000" />\n      <atom co'
         'ord="      0.50000000       0.00000000       0.50000000" />\n      <atom '
         'coord="      0.00000000       0.50000000       0.50000000" />\n    </spec'
         'ies>\n    <species speciesfile="Cl.xml">\n      <atom coord="      0.5000'
         '0000       0.00000000       0.00000000" />\n      <atom coord="      0.00'
         '000000       0.50000000       0.00000000" />\n      <atom coord="      0.'
         '00000000       0.00000000       0.50000000" />\n      <atom coord="      '
         '0.50000000       0.50000000       0.50000000" />\n    </species>\n  </str'
         'ucture>\n</input>\n')
     lattice = Lattice.cubic('5.62')
     structure = Structure(lattice, ['Na', 'Na', 'Na', 'Na',
                                     'Cl', 'Cl', 'Cl', 'Cl'],
                           [[0, 0, 0], [0.5, 0.5, 0.0], [0.5, 0.0, 0.5],
                            [0.0, 0.5, 0.5],
                            [0.5, 0.0, 0.0], [0.0, 0.5, 0.0],
                            [0.0, 0.0, 0.5], [0.5, 0.5, 0.5]])
     excin = ExcitingInput(structure)
     for l1, l2 in zip(input_string.split("\n"),
                       excin.write_string('unchanged').split("\n")):
         if not l1.strip().startswith("<crystal scale"):
             self.assertEqual(l1, l2)
开发者ID:ExpHP,项目名称:pymatgen,代码行数:33,代码来源:test_exciting.py


示例9: pair

    def pair(self, element_a, element_b, potential, separations):
        max_r = np.max(separations)
        lattice = Lattice.from_parameters(10*max_r, 10*max_r, 10*max_r, 90, 90, 90)

        if self.calculator_type == 'lammps':
            kwargs = {'lammps_set': load_lammps_set('static')}
        elif self.calculator_type == 'lammps_cython':
            kwargs = {'lammps_additional_commands': ['run 0']}

        async def calculate():
            futures = []
            for sep in separations:
                coord_a = (lattice.a*0.5-(sep/2), lattice.b*0.5, lattice.c*0.5)
                coord_b = (lattice.a*0.5+(sep/2), lattice.b*0.5, lattice.c*0.5)
                structure = Structure(
                    lattice,
                    [element_a, element_b],
                    [coord_a, coord_b], coords_are_cartesian=True)
                futures.append(await self.calculator.submit(
                    structure, potential,
                    properties={'energy'},
                    **kwargs))
            return await asyncio.gather(*futures)
        results = self._run_async_func(calculate())
        return np.array([r['results']['energy'] for r in results])
开发者ID:costrouc,项目名称:dftfit,代码行数:25,代码来源:base.py


示例10: test_get_supercell_matrix

    def test_get_supercell_matrix(self):
        sm = StructureMatcher(ltol=0.1, stol=0.3, angle_tol=2,
                              primitive_cell=False, scale=True,
                              attempt_supercell=True)

        l = Lattice.orthorhombic(1, 2, 3)

        s1 = Structure(l, ['Si', 'Si', 'Ag'],
                       [[0,0,0.1],[0,0,0.2],[.7,.4,.5]])
        s1.make_supercell([2,1,1])
        s2 = Structure(l, ['Si', 'Si', 'Ag'],
                       [[0,0.1,0],[0,0.1,-0.95],[-.7,.5,.375]])
        result = sm.get_supercell_matrix(s1, s2)
        self.assertTrue((result == [[-2,0,0],[0,1,0],[0,0,1]]).all())

        s1 = Structure(l, ['Si', 'Si', 'Ag'],
                       [[0,0,0.1],[0,0,0.2],[.7,.4,.5]])
        s1.make_supercell([[1, -1, 0],[0, 0, -1],[0, 1, 0]])

        s2 = Structure(l, ['Si', 'Si', 'Ag'],
                       [[0,0.1,0],[0,0.1,-0.95],[-.7,.5,.375]])
        result = sm.get_supercell_matrix(s1, s2)
        self.assertTrue((result == [[-1,-1,0],[0,0,-1],[0,1,0]]).all())

        #test when the supercell is a subset
        sm = StructureMatcher(ltol=0.1, stol=0.3, angle_tol=2,
                              primitive_cell=False, scale=True,
                              attempt_supercell=True, allow_subset=True)
        del s1[0]
        result = sm.get_supercell_matrix(s1, s2)
        self.assertTrue((result == [[-1,-1,0],[0,0,-1],[0,1,0]]).all())
开发者ID:eantono,项目名称:pymatgen,代码行数:31,代码来源:test_structure_matcher.py


示例11: test_get_mapping

    def test_get_mapping(self):
        sm = StructureMatcher(ltol=0.2, stol=0.3, angle_tol=5,
                              primitive_cell=False, scale=True,
                              attempt_supercell=False,
                              allow_subset = True)
        l = Lattice.orthorhombic(1, 2, 3)
        s1 = Structure(l, ['Ag', 'Si', 'Si'],
                       [[.7,.4,.5],[0,0,0.1],[0,0,0.2]])
        s1.make_supercell([2,1,1])
        s2 = Structure(l, ['Si', 'Si', 'Ag'],
                       [[0,0.1,-0.95],[0,0.1,0],[-.7,.5,.375]])

        shuffle = [2,0,1,3,5,4]
        s1 = Structure.from_sites([s1[i] for i in shuffle])
        #test the mapping
        s2.make_supercell([2,1,1])
        #equal sizes
        for i, x in enumerate(sm.get_mapping(s1, s2)):
            self.assertEqual(s1[x].species_and_occu,
                             s2[i].species_and_occu)

        del s1[0]
        #s1 is subset of s2
        for i, x in enumerate(sm.get_mapping(s2, s1)):
            self.assertEqual(s1[i].species_and_occu,
                             s2[x].species_and_occu)
        #s2 is smaller than s1
        del s2[0]
        del s2[1]
        self.assertRaises(ValueError, sm.get_mapping, s2, s1)
开发者ID:eantono,项目名称:pymatgen,代码行数:30,代码来源:test_structure_matcher.py


示例12: test_out_of_cell_s2_like_s1

 def test_out_of_cell_s2_like_s1(self):
     l = Lattice.cubic(5)
     s1 = Structure(l, ["Si", "Ag", "Si"], [[0, 0, -0.02], [0, 0, 0.001], [0.7, 0.4, 0.5]])
     s2 = Structure(l, ["Si", "Ag", "Si"], [[0, 0, 0.98], [0, 0, 0.99], [0.7, 0.4, 0.5]])
     new_s2 = StructureMatcher(primitive_cell=False).get_s2_like_s1(s1, s2)
     dists = np.sum((s1.cart_coords - new_s2.cart_coords) ** 2, axis=-1) ** 0.5
     self.assertLess(np.max(dists), 0.1)
开发者ID:dcossey014,项目名称:pymatgen,代码行数:7,代码来源:test_structure_matcher.py


示例13: test_get_s2_large_s2

    def test_get_s2_large_s2(self):
        sm = StructureMatcher(ltol=0.2, stol=0.3, angle_tol=5,
                              primitive_cell=False, scale=False,
                              attempt_supercell=True, allow_subset=False,
                              supercell_size='volume')

        l = Lattice.orthorhombic(1, 2, 3)
        s1 = Structure(l, ['Ag', 'Si', 'Si'],
                       [[.7,.4,.5],[0,0,0.1],[0,0,0.2]])

        l2 = Lattice.orthorhombic(1.01, 2.01, 3.01)
        s2 = Structure(l2, ['Si', 'Si', 'Ag'],
                       [[0,0.1,-0.95],[0,0.1,0],[-.7,.5,.375]])
        s2.make_supercell([[0,-1,0],[1,0,0],[0,0,1]])

        result = sm.get_s2_like_s1(s1, s2)

        for x,y in zip(s1, result):
            self.assertLess(x.distance(y), 0.08)
开发者ID:eantono,项目名称:pymatgen,代码行数:19,代码来源:test_structure_matcher.py


示例14: test_get_supercells

    def test_get_supercells(self):
        sm = StructureMatcher(comparator=ElementComparator())
        l = Lattice.cubic(1)
        l2 = Lattice.cubic(0.5)
        s1 = Structure(l, ['Mg', 'Cu', 'Ag', 'Cu'], [[0]*3]*4)
        s2 = Structure(l2, ['Cu', 'Cu', 'Ag'], [[0]*3]*3)
        scs = list(sm._get_supercells(s1, s2, 8, False))
        for x in scs:
            self.assertAlmostEqual(abs(np.linalg.det(x[3])), 8)
            self.assertEqual(len(x[0]), 4)
            self.assertEqual(len(x[1]), 24)
        self.assertEqual(len(scs), 48)

        scs = list(sm._get_supercells(s2, s1, 8, True))
        for x in scs:
            self.assertAlmostEqual(abs(np.linalg.det(x[3])), 8)
            self.assertEqual(len(x[0]), 24)
            self.assertEqual(len(x[1]), 4)
        self.assertEqual(len(scs), 48)
开发者ID:eantono,项目名称:pymatgen,代码行数:19,代码来源:test_structure_matcher.py


示例15: test_nelect

    def test_nelect(self):
        coords = [[0] * 3, [0.5] * 3, [0.75] * 3]
        lattice = Lattice.cubic(4)
        s = Structure(lattice, ['Si', 'Si', 'Fe'], coords)
        self.assertAlmostEqual(MITRelaxSet(s).nelect, 16)

        # Check that it works even when oxidation states are present. Was a bug
        # previously.
        s = Structure(lattice, ['Si4+', 'Si4+', 'Fe2+'], coords)
        self.assertAlmostEqual(MITRelaxSet(s).nelect, 16)
        self.assertAlmostEqual(MPRelaxSet(s).nelect, 22)
开发者ID:matk86,项目名称:pymatgen,代码行数:11,代码来源:test_sets.py


示例16: test_get_supercell_size

    def test_get_supercell_size(self):
        l = Lattice.cubic(1)
        l2 = Lattice.cubic(0.9)
        s1 = Structure(l, ["Mg", "Cu", "Ag", "Cu", "Ag"], [[0] * 3] * 5)
        s2 = Structure(l2, ["Cu", "Cu", "Ag"], [[0] * 3] * 3)

        sm = StructureMatcher(supercell_size="volume")
        self.assertEqual(sm._get_supercell_size(s1, s2), (1, True))
        self.assertEqual(sm._get_supercell_size(s2, s1), (1, True))

        sm = StructureMatcher(supercell_size="num_sites")
        self.assertEqual(sm._get_supercell_size(s1, s2), (2, False))
        self.assertEqual(sm._get_supercell_size(s2, s1), (2, True))

        sm = StructureMatcher(supercell_size="Ag")
        self.assertEqual(sm._get_supercell_size(s1, s2), (2, False))
        self.assertEqual(sm._get_supercell_size(s2, s1), (2, True))

        sm = StructureMatcher(supercell_size="wfieoh")
        self.assertRaises(ValueError, sm._get_supercell_size, s1, s2)
开发者ID:dcossey014,项目名称:pymatgen,代码行数:20,代码来源:test_structure_matcher.py


示例17: test_get_mask

    def test_get_mask(self):
        sm = StructureMatcher(comparator=ElementComparator())
        l = Lattice.cubic(1)
        s1 = Structure(l, ['Mg', 'Cu', 'Ag', 'Cu'], [[0]*3]*4)
        s2 = Structure(l, ['Cu', 'Cu', 'Ag'], [[0]*3]*3)

        result = [[True, False, True, False],
                  [True, False, True, False],
                  [True, True, False, True]]
        m, inds, i = sm._get_mask(s1, s2, 1, True)
        self.assertTrue(np.all(m == result))
        self.assertTrue(i == 2)
        self.assertEqual(inds, [2])

        #test supercell with match
        result = [[1, 1, 0, 0, 1, 1, 0, 0],
                  [1, 1, 0, 0, 1, 1, 0, 0],
                  [1, 1, 1, 1, 0, 0, 1, 1]]
        m, inds, i = sm._get_mask(s1, s2, 2, True)
        self.assertTrue(np.all(m == result))
        self.assertTrue(i == 2)
        self.assertTrue(np.allclose(inds, np.array([4])))

        #test supercell without match
        result = [[1, 1, 1, 1, 1, 1],
                  [0, 0, 0, 0, 1, 1],
                  [1, 1, 1, 1, 0, 0],
                  [0, 0, 0, 0, 1, 1]]
        m, inds, i = sm._get_mask(s2, s1, 2, True)
        self.assertTrue(np.all(m == result))
        self.assertTrue(i == 0)
        self.assertTrue(np.allclose(inds, np.array([])))

        #test s2_supercell
        result = [[1, 1, 1], [1, 1, 1],
                  [0, 0, 1], [0, 0, 1],
                  [1, 1, 0], [1, 1, 0],
                  [0, 0, 1], [0, 0, 1]]
        m, inds, i = sm._get_mask(s2, s1, 2, False)
        self.assertTrue(np.all(m == result))
        self.assertTrue(i == 0)
        self.assertTrue(np.allclose(inds, np.array([])))

        #test for multiple translation indices
        s1 = Structure(l, ['Cu', 'Ag', 'Cu', 'Ag', 'Ag'], [[0]*3]*5)
        s2 = Structure(l, ['Ag', 'Cu', 'Ag'], [[0]*3]*3)
        result = [[1, 0, 1, 0, 0],
                  [0, 1, 0, 1, 1],
                  [1, 0, 1, 0, 0]]
        m, inds, i = sm._get_mask(s1, s2, 1, True)

        self.assertTrue(np.all(m == result))
        self.assertTrue(i == 1)
        self.assertTrue(np.allclose(inds, [0, 2]))
开发者ID:eantono,项目名称:pymatgen,代码行数:54,代码来源:test_structure_matcher.py


示例18: test_metal_check

    def test_metal_check(self):
        structure = Structure.from_spacegroup("Fm-3m", Lattice.cubic(3),
                                              ["Cu"], [[0, 0, 0]])

        with warnings.catch_warnings(record=True) as w:
            # Cause all warnings to always be triggered.
            warnings.simplefilter("always")
            # Trigger a warning.
            vis = MITRelaxSet(structure)
            incar = vis.incar
            # Verify some things
            self.assertIn("ISMEAR", str(w[-1].message))
开发者ID:blondegeek,项目名称:pymatgen,代码行数:12,代码来源:test_sets.py


示例19: test_get_supercell_size

    def test_get_supercell_size(self):
        l = Lattice.cubic(1)
        l2 = Lattice.cubic(0.9)
        s1 = Structure(l, ['Mg', 'Cu', 'Ag', 'Cu', 'Ag'], [[0]*3]*5)
        s2 = Structure(l2, ['Cu', 'Cu', 'Ag'], [[0]*3]*3)

        sm = StructureMatcher(supercell_size='volume')
        result = sm._get_supercell_size(s1, s2)
        self.assertEqual(result[0], 1)
        self.assertEqual(result[1], True)

        result = sm._get_supercell_size(s2, s1)
        self.assertEqual(result[0], 1)
        self.assertEqual(result[1], True)

        sm = StructureMatcher(supercell_size='num_sites')
        result = sm._get_supercell_size(s1, s2)
        self.assertEqual(result[0], 2)
        self.assertEqual(result[1], False)

        result = sm._get_supercell_size(s2, s1)
        self.assertEqual(result[0], 2)
        self.assertEqual(result[1], True)
开发者ID:eantono,项目名称:pymatgen,代码行数:23,代码来源:test_structure_matcher.py


示例20: test_find_match2

    def test_find_match2(self):
        sm = StructureMatcher(ltol=0.2, stol=0.3, angle_tol=5, primitive_cell=True, scale=True, attempt_supercell=False)
        l = Lattice.orthorhombic(1, 2, 3)
        s1 = Structure(l, ["Si", "Si"], [[0, 0, 0.1], [0, 0, 0.2]])
        s2 = Structure(l, ["Si", "Si"], [[0, 0.1, 0], [0, 0.1, -0.95]])

        s1, s2, fu, s1_supercell = sm._preprocess(s1, s2, False)

        match = sm._strict_match(s1, s2, fu, s1_supercell=False, use_rms=True, break_on_match=False)
        scale_matrix = match[2]
        s2.make_supercell(scale_matrix)
        s2.translate_sites(range(len(s2)), match[3])

        self.assertAlmostEqual(np.sum(s2.frac_coords), 0.3)
        self.assertAlmostEqual(np.sum(s2.frac_coords[:, :2]), 0)
开发者ID:dcossey014,项目名称:pymatgen,代码行数:15,代码来源:test_structure_matcher.py



注:本文中的pymatgen.core.Lattice类示例由纯净天空整理自Github/MSDocs等源码及文档管理平台,相关代码片段筛选自各路编程大神贡献的开源项目,源码版权归原作者所有,传播和使用请参考对应项目的License;未经允许,请勿转载。


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