當前位置: 首頁>>代碼示例>>Python>>正文


Python Domain.set_quantities_to_be_stored方法代碼示例

本文整理匯總了Python中anuga.shallow_water.shallow_water_domain.Domain.set_quantities_to_be_stored方法的典型用法代碼示例。如果您正苦於以下問題:Python Domain.set_quantities_to_be_stored方法的具體用法?Python Domain.set_quantities_to_be_stored怎麽用?Python Domain.set_quantities_to_be_stored使用的例子?那麽, 這裏精選的方法代碼示例或許可以為您提供幫助。您也可以進一步了解該方法所在anuga.shallow_water.shallow_water_domain.Domain的用法示例。


在下文中一共展示了Domain.set_quantities_to_be_stored方法的2個代碼示例,這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚,您的評價將有助於係統推薦出更棒的Python代碼示例。

示例1: test_read_sww

# 需要導入模塊: from anuga.shallow_water.shallow_water_domain import Domain [as 別名]
# 或者: from anuga.shallow_water.shallow_water_domain.Domain import set_quantities_to_be_stored [as 別名]
    def test_read_sww(self):
        """
        Save to an sww file and then read back the info.
        Here we store the info "uniquely"
        """

        # ---------------------------------------------------------------------
        # Import necessary modules
        # ---------------------------------------------------------------------
        from anuga.abstract_2d_finite_volumes.mesh_factory import rectangular_cross
        from anuga.shallow_water.shallow_water_domain import Domain
        from anuga import Reflective_boundary
        from anuga.abstract_2d_finite_volumes.generic_boundary_conditions import Dirichlet_boundary, Time_boundary

        # ---------------------------------------------------------------------
        # Setup computational domain
        # ---------------------------------------------------------------------
        length = 8.0
        width = 4.0
        dx = dy = 2  # Resolution: Length of subdivisions on both axes

        inc = 0.05  # Elevation increment

        points, vertices, boundary = rectangular_cross(int(length / dx), int(width / dy), len1=length, len2=width)
        domain = Domain(points, vertices, boundary)
        domain.set_name("read_sww_test" + str(domain.processor))  # Output name
        domain.set_quantities_to_be_stored({"elevation": 2, "stage": 2, "xmomentum": 2, "ymomentum": 2, "friction": 1})

        domain.set_store_vertices_uniquely(True)

        # ---------------------------------------------------------------------
        # Setup initial conditions
        # ---------------------------------------------------------------------
        domain.set_quantity("elevation", 0.0)  # Flat bed initially
        domain.set_quantity("friction", 0.01)  # Constant friction
        domain.set_quantity("stage", 0.0)  # Dry initial condition

        # ------------------------------------------------------------------
        # Setup boundary conditions
        # ------------------------------------------------------------------
        Bi = Dirichlet_boundary([0.4, 0, 0])  # Inflow
        Br = Reflective_boundary(domain)  # Solid reflective wall
        Bo = Dirichlet_boundary([-5, 0, 0])  # Outflow

        domain.set_boundary({"left": Bi, "right": Bo, "top": Br, "bottom": Br})

        # -------------------------------------------------------------------
        # Evolve system through time
        # -------------------------------------------------------------------

        for t in domain.evolve(yieldstep=1, finaltime=4.0):
            pass

        # Check that quantities have been stored correctly
        source = domain.get_name() + ".sww"

        # x = fid.variables['x'][:]
        # y = fid.variables['y'][:]
        # stage = fid.variables['stage'][:]
        # elevation = fid.variables['elevation'][:]
        # fid.close()

        # assert len(stage.shape) == 2
        # assert len(elevation.shape) == 2

        # M, N = stage.shape

        sww_file = sww.Read_sww(source)

        # print 'last frame number',sww_file.get_last_frame_number()

        assert num.allclose(sww_file.x, domain.get_vertex_coordinates()[:, 0])
        assert num.allclose(sww_file.y, domain.get_vertex_coordinates()[:, 1])

        assert num.allclose(sww_file.time, [0.0, 1.0, 2.0, 3.0, 4.0])

        M = domain.get_number_of_triangles()

        assert num.allclose(num.reshape(num.arange(3 * M), (M, 3)), sww_file.vertices)

        last_frame_number = sww_file.get_last_frame_number()
        assert last_frame_number == 4

        assert num.allclose(sww_file.get_bounds(), [0.0, length, 0.0, width])

        assert "stage" in sww_file.quantities.keys()
        assert "friction" in sww_file.quantities.keys()
        assert "elevation" in sww_file.quantities.keys()
        assert "xmomentum" in sww_file.quantities.keys()
        assert "ymomentum" in sww_file.quantities.keys()

        for qname, q in sww_file.read_quantities(last_frame_number).items():

            # print qname
            # print num.linalg.norm(num.abs((domain.get_quantity(qname).get_values()-q).flatten()), ord=1)

            assert num.allclose(domain.get_quantity(qname).get_values(), q)

        # -----------------------------------------
        # Start the evolution off again at frame 3
#.........這裏部分代碼省略.........
開發者ID:xuexianwu,項目名稱:anuga_core,代碼行數:103,代碼來源:test_read_sww.py

示例2: test_get_flow_through_cross_section_with_geo

# 需要導入模塊: from anuga.shallow_water.shallow_water_domain import Domain [as 別名]
# 或者: from anuga.shallow_water.shallow_water_domain.Domain import set_quantities_to_be_stored [as 別名]
    def test_get_flow_through_cross_section_with_geo(self):
        """test_get_flow_through_cross_section(self):

        Test that the total flow through a cross section can be
        correctly obtained at run-time from the ANUGA domain.

        This test creates a flat bed with a known flow through it and tests
        that the function correctly returns the expected flow.

        The specifics are
        e = -1 m
        u = 2 m/s
        h = 2 m
        w = 3 m (width of channel)

        q = u*h*w = 12 m^3/s

        This run tries it with georeferencing and with elevation = -1
        """

        # Create basic mesh (20m x 3m)
        width = 3
        length = 20
        t_end = 1
        points, vertices, boundary = rectangular(length, width, length, width)

        # Create shallow water domain
        domain = Domain(points, vertices, boundary,
                        geo_reference=Geo_reference(56, 308500, 6189000))

        domain.default_order = 2
        domain.set_quantities_to_be_stored(None)

        e = -1.0
        w = 1.0
        h = w-e
        u = 2.0
        uh = u*h

        Br = Reflective_boundary(domain)     # Side walls
        Bd = Dirichlet_boundary([w, uh, 0])  # 2 m/s across the 3 m inlet: 


        # Initial conditions
        domain.set_quantity('elevation', e)
        domain.set_quantity('stage', w)
        domain.set_quantity('xmomentum', uh)
        domain.set_boundary({'left': Bd, 'right': Bd, 'top': Br, 'bottom': Br})

        # Interpolation points down the middle
        I = [[0, width/2.],
             [length/2., width/2.],
             [length, width/2.]]
        interpolation_points = domain.geo_reference.get_absolute(I)

        for t in domain.evolve(yieldstep=0.1, finaltime=0.5):
            # Shortcuts to quantites
            stage = domain.get_quantity('stage')
            xmomentum = domain.get_quantity('xmomentum')
            ymomentum = domain.get_quantity('ymomentum')

            # Check that quantities are they should be in the interior
            w_t = stage.get_values(interpolation_points)
            uh_t = xmomentum.get_values(interpolation_points)
            vh_t = ymomentum.get_values(interpolation_points)

            assert num.allclose(w_t, w)
            assert num.allclose(uh_t, uh)
            assert num.allclose(vh_t, 0.0, atol=1.0e-6)

            # Check flows through the middle
            for i in range(5):
                x = length/2. + i*0.23674563    # Arbitrary
                cross_section = [[x, 0], [x, width]]

                cross_section = domain.geo_reference.get_absolute(cross_section)
                Q = domain.get_flow_through_cross_section(cross_section,
                                                          verbose=False)

                assert num.allclose(Q, uh*width)

        import cPickle        
        cPickle.dump(domain, open('domain_pickle.pickle', 'w'))
        domain_restored = cPickle.load(open('domain_pickle.pickle'))

        
        for t in domain_restored.evolve(yieldstep=0.1, finaltime=1.0):
            # Shortcuts to quantites
            stage = domain_restored.get_quantity('stage')
            xmomentum = domain_restored.get_quantity('xmomentum')
            ymomentum = domain_restored.get_quantity('ymomentum')
            
            # Check that quantities are they should be in the interior
            w_t = stage.get_values(interpolation_points)
            uh_t = xmomentum.get_values(interpolation_points)
            vh_t = ymomentum.get_values(interpolation_points)

            assert num.allclose(w_t, w)
            assert num.allclose(uh_t, uh)
            assert num.allclose(vh_t, 0.0, atol=1.0e-6)
#.........這裏部分代碼省略.........
開發者ID:MattAndersonPE,項目名稱:anuga_core,代碼行數:103,代碼來源:test_loadsave.py


注:本文中的anuga.shallow_water.shallow_water_domain.Domain.set_quantities_to_be_stored方法示例由純淨天空整理自Github/MSDocs等開源代碼及文檔管理平台,相關代碼片段篩選自各路編程大神貢獻的開源項目,源碼版權歸原作者所有,傳播和使用請參考對應項目的License;未經允許,請勿轉載。