o3seespy.node

class o3seespy.command.node.Node(osi, x: float, y=None, z=None, vel=None, acc=None, mass: Optional[list] = None, x_mass=None, y_mass=None, z_mass=None, x_rot_mass=None, y_rot_mass=None, z_rot_mass=None, tag=None, build=1)[source]

Bases: OpenSeesObject

An OpenSees node

Parameters

  • osi (o3seespy.opensees_instance.OpenSeesInstance object) – An instance of OpenSees

  • x (float) – x-coordinate

  • y (float, optional) – y-coordinate

  • z (float, optional) – z-coordinate

  • vel (iterable object, optional) – nodal velocities (x, y, z)

  • acc (iterable object, optional) –

  • mass (iterable object, option) – nodal masses

op_base_type = 'node'
op_type = 'node'
o3seespy.command.node.build_node_tag_hash_dict_from_mesh(ndm, xs, ys, zs=None, active=None, init_tag=0, nsf=8)[source]

Creates an array of nodes that in vertical lines, but vary in height

The mesh has len(xs) nodes in the x-direction and len(ys[0]) in the y-direction. If zs is not None then has len(zs) in the z-direction.

Parameters

  • osi –

  • xs –

  • ys –

  • zs –

  • active –

Returns

axis-0 = x-direction axis-1 = y-direction axis-2 = z # not included if len(zs)=1 or zs=None

Return type

np.array

o3seespy.command.node.build_regular_node_mesh(osi, xs, ys, zs=None, active=None, tags=None)[source]

Creates an array of nodes that are in a regular mesh

The mesh has len(xs) nodes in the x-direction and len(ys) in the y-direction. If zs is not None then has len(zs) in the z-direction.

Parameters

  • osi –

  • xs –

  • ys –

  • zs –

  • active –

  • tags (array_like) – array of node tags

Returns

axis-0 = x-direction axis-1 = y-direction axis-2 = z # not included if len(zs)=1 or zs=None

Return type

np.array

o3seespy.command.node.build_varied_xy_node_mesh(osi, xs, ys, zs=None, active=None, tags=None)[source]

Creates an array of nodes that vary in both x and y but are still in a grid.

The mesh has len(xs)=ln(ys) nodes in the x-direction and len(ys[0]) in the y-direction. If zs is not None then has len(zs) in the z-direction.

Parameters

  • osi –

  • xs –

  • ys –

  • zs –

  • active –

Returns

axis-0 = x-direction axis-1 = y-direction axis-2 = z # not included if len(zs)=1 or zs=None

Return type

np.array

o3seespy.command.node.build_varied_y_node_mesh(osi, xs, ys, zs=None, active=None)[source]

Creates an array of nodes that in vertical lines, but vary in height

The mesh has len(xs)=ln(ys) nodes in the x-direction and len(ys[0]) in the y-direction. If zs is not None then has len(zs) in the z-direction.

Parameters

  • osi –

  • xs –

  • ys –

  • zs –

  • active –

Returns

axis-0 = x-direction axis-1 = y-direction axis-2 = z # not included if len(zs)=1 or zs=None

Return type

np.array

o3seespy.command.node.duplicate_node(osi, node)[source]

Copy a node to initialise in another processor in parallel mode

Note: It has the same node number

o3seespy.command.node.hash_coords(coords, nsf=8)[source]
o3seespy.command.node.repeat_node(osi, node, tag=None)[source]

Copy a node to initialise in another processor in parallel mode

Note: It has the same node number