def __init__(self,
length=10.0,
radius=1.0,
center=(0, 0, 0),
nx=10,
ntheta=10,
nr=2,
clever=True,
name=None):
self.length = length
self.radius = radius
self.geometric_center = np.asarray(center, dtype=float)
if name is None:
name = f"cylinder_{next(Mesh._ids)}"
ntheta = 2 * (ntheta // 2) # Temporary fix to avoid mismatch in mesh
# When symmetries are used, one needs an even number of panels.
# TODO: When symmetries are not used, implement the odd case.
open_cylinder = self._generate_open_cylinder_mesh(
nx, ntheta, f"body_of_{name}")
if nr > 0:
side = Disk(radius=radius,
center=(-np.array([length / 2, 0, 0])),
normal=(-1, 0, 0),
resolution=(nr, ntheta),
name=f"side_of_{name}").mesh
other_side = side.copy(name=f"other_side_of_{name}_mesh")
other_side.mirror(yOz_Plane)
mesh = CollectionOfMeshes((open_cylinder, side, other_side))
else:
mesh = open_cylinder
if not clever:
mesh = mesh.merged()
mesh.merge_duplicates()
mesh.heal_triangles()
mesh.translate(self.geometric_center)
mesh.name = f"{name}_mesh"
FloatingBody.__init__(self, mesh=mesh, name=name)
def __init__(self,
length=10.0,
radius=1.0,
center=(0, 0, 0),
nx=10,
ntheta=10,
nr=2,
clever=True,
name=None):
self.length = length
self.radius = radius
self.geometric_center = np.asarray(center, dtype=np.float)
if name is None:
name = f"cylinder_{next(Mesh._ids)}"
open_cylinder = self._generate_open_cylinder_mesh(
nx, ntheta, f"body_of_{name}")
if nr > 0:
side = Disk(radius=radius,
center=(-np.array([length / 2, 0, 0])),
normal=(-1, 0, 0),
resolution=(nr, ntheta),
name=f"side_of_{name}").mesh
other_side = side.copy(name=f"other_side_of_{name}_mesh")
other_side.mirror(yOz_Plane)
mesh = CollectionOfMeshes((open_cylinder, side, other_side))
else:
mesh = open_cylinder
if not clever:
mesh = mesh.merged()
mesh.merge_duplicates()
mesh.heal_triangles()
mesh.translate(self.geometric_center)
mesh.name = f"{name}_mesh"
FloatingBody.__init__(self, mesh=mesh, name=name)
def __init__(self,
length=10.0,
radius=1.0,
center=(0, 0, 0),
nx=10,
ntheta=10,
nr=2,
clever=True,
name=None):
"""Generate the mesh of an horizontal cylinder.
Parameters
----------
length : float, optional
length of the cylinder
radius : float, optional
radius of the cylinder
center : 3-ple or array of shape (3,), optional
position of the geometric center of the cylinder
nx : int, optional
number of circular slices
ntheta : int, optional
number of panels along a circular slice of the cylinder
nr : int, optional
number of panels along a radius on the extremities of the cylinder
clever : bool, optional
if True, uses the mesh symmetries
name : str, optional
a string naming the floating body
"""
self.length = length
self.radius = radius
self.geometric_center = np.asarray(center, dtype=np.float)
if name is None:
name = f"cylinder_{next(Mesh._ids)}"
open_cylinder = self._generate_open_cylinder_mesh(
nx, ntheta, f"body_of_{name}")
if nr > 0:
side = Disk(radius=radius,
center=(-np.array([length / 2, 0, 0])),
normal=(-1, 0, 0),
resolution=(nr, ntheta),
name=f"side_of_{name}").mesh
other_side = side.copy(name=f"other_side_of_{name}_mesh")
other_side.mirror(yOz_Plane)
mesh = CollectionOfMeshes((open_cylinder, side, other_side))
else:
mesh = open_cylinder
if not clever:
mesh = mesh.merged()
mesh.merge_duplicates()
mesh.heal_triangles()
mesh.translate(self.geometric_center)
mesh.name = f"{name}_mesh"
FloatingBody.__init__(self, mesh=mesh, name=name)