ThickShell¶

class ThickShell(init_xyz, normals, width_points, n_layers=2, shift=0.0)[source]¶

Bases: kokiy.shell.Shell

A 3D shell object build by extruding a xyz mesh in the normals direction.

Parameters

init_xyz (numpy.ndarray) – 2d mesh (e.g. from Shell2D).
normals (numpy.ndarray) – 2d mesh normals with same shame as init_xyz.
width_points (numpy.ndarray) – Width profile or width matrix.
n_layers (int) – Number of layers.
shift (float) – Additional depth.

shape¶

Shape of the shell.

Type: array-like

Methods

`__init__`(init_xyz, normals, width_points[, ...])
`bake_from_shell`(shell, width_points[, ...])
`dump`([filename, fields])	Dump shell geometrical and physical properties into hdf file.
`dump_shell`([name, fields])	Dump shell geometrical properties into hdf file.
`export_geo`(filename[, show_all])	Exports simplified boundary representation for visualization.
`export_mesh`(filename, elem_type, **kwargs)	Exports mesh.
`get_mesh`(elem_type)	Returns a yamio.Mesh.
`replicate`(shape)	Creates a similar instance, but possibly with different shape.
`set_mask_on_shell`(point_cloud, tol)	Create a mask on the shell from a point cloud.

Attributes

`dz`	z-direction spacing matrix of shape self.shape.
`geom_type`
`xyz`	xyz matrix of shape (*self.shape, 3).

Methods¶

ThickShell.__init__(init_xyz, normals, width_points, n_layers=2, shift=0.0)[source]¶

classmethod ThickShell.bake_from_shell(shell, width_points, n_layers=1, shift=0.0)[source]¶

ThickShell.dump(filename='shell', fields=None)[source]¶

Dump shell geometrical and physical properties into hdf file.

Parameters

filename (str) – Name of the file to dump.

fields (dict) – Additional fields to dump. (key, np.array).

ThickShell.dump_shell(name='shell', fields=None)[source]¶

Dump shell geometrical properties into hdf file.

Parameters

name (str) – Name of the file to dump. Default ‘shell’.

fields (dict) – Additional fields to dump. (key, np.array).

Deprecated since version 0.2.0: Use dump instead.

ThickShell.export_geo(filename, show_all=False, **kwargs)¶

Exports simplified boundary representation for visualization.

Uses ensight gold format.

Parameters

show_all (bool) – Show all boundary edges?

kwargs – will be passed to writer.write method.

Notes

If goal is to proper export original mesh use export_mesh.

ThickShell.export_mesh(filename, elem_type, **kwargs)¶

Exports mesh.

Parameters

filename (str) – file name. Extension guides file type (any acceptable by yamio).

elem_type (str) – ‘tri’, ‘quad’, ‘tetra’, ‘hexahedron’.

kwargs – will be passed to writer.write method.

Notes

hip does not allow 3d surface meshes.

ThickShell.get_mesh(elem_type)¶

Returns a yamio.Mesh.

ThickShell.replicate(shape)[source]¶

Creates a similar instance, but possibly with different shape.

ThickShell.set_mask_on_shell(point_cloud, tol)¶

Create a mask on the shell from a point cloud.

Parameters

point_cloud (numpy.ndarray) – Coordinates with shape (n, 3).

tol (float) – Tolerance.

Notes

The mask value is 0 for shell points located near cloud points. Otherwise the mask value is 1.

CakeDict

frustum_shell