gdsfactory.technology.LayerLevel

class gdsfactory.technology.LayerLevel(*, name: str | None = None, layer: ~gdsfactory.technology.layer_stack.LogicalLayer | ~gdsfactory.technology.layer_stack.DerivedLayer | int | str | tuple[int, int] | ~kfactory.layer.LayerEnum, derived_layer: ~gdsfactory.technology.layer_stack.LogicalLayer | None = None, thickness: float, thickness_tolerance: float | None = None, width_tolerance: float | None = None, zmin: float, zmin_tolerance: float | None = None, sidewall_angle: float = 0.0, sidewall_angle_tolerance: float | None = None, width_to_z: float = 0.0, z_to_bias: tuple[list[float], list[float]] | None = None, bias: tuple[float, float] | float | None = None, mesh_order: int = 3, material: str | None = None, info: dict[str, ~typing.Any] = <factory>)

Level for 3D LayerStack.

Parameters

name – str
layer – LogicalLayer or DerivedLayer. DerivedLayers can be composed of operations consisting of multiple other GDSLayers or other DerivedLayers.
derived_layer – if the layer is derived, LogicalLayer to assign to the derived layer.
thickness – layer thickness in um.
thickness_tolerance – layer thickness tolerance in um.
width_tolerance – layer width tolerance in um.
zmin – height position where material starts in um.
zmin_tolerance – layer height tolerance in um.
sidewall_angle – in degrees with respect to normal.
sidewall_angle_tolerance – in degrees.
width_to_z – if sidewall_angle, reference z-position (0 –> zmin, 1 –> zmin + thickness, 0.5 in the middle).
bias – shrink/grow of the level compared to the mask
z_to_bias – most generic way to specify an extrusion. Two tuples of the same length specifying the shrink/grow (float) to apply between zmin (0) and zmin + thickness (1) I.e. [[z1, z2, …, zN], [bias1, bias2, …, biasN]] Defaults no buffering [[0, 1], [0, 0]]. NOTE: A dict might be more expressive.
mesh_order – lower mesh order (e.g. 1) will have priority over higher mesh order (e.g. 2) in the regions where materials overlap.
material – used in the klayout script
info – all other rendering and simulation metadata should go here.

__init__(**data: Any)None

Create a new model by parsing and validating input data from keyword arguments.

Raises [ValidationError][pydantic_core.ValidationError] if the input data cannot be validated to form a valid model.

self is explicitly positional-only to allow self as a field name.

Methods

`__init__`(**data)	Create a new model by parsing and validating input data from keyword arguments.
`check_layer`(layer)
`construct`([_fields_set])
`copy`(*[, include, exclude, update, deep])	Returns a copy of the model.
`dict`(*[, include, exclude, by_alias, ...])
`from_orm`(obj)
`json`(*[, include, exclude, by_alias, ...])
`model_construct`([_fields_set])	Creates a new instance of the Model class with validated data.
`model_copy`(*[, update, deep])	!!! abstract "Usage Documentation"
`model_dump`(*[, mode, include, exclude, ...])	!!! abstract "Usage Documentation"
`model_dump_json`(*[, indent, include, ...])	!!! abstract "Usage Documentation"
`model_json_schema`([by_alias, ref_template, ...])	Generates a JSON schema for a model class.
`model_parametrized_name`(params)	Compute the class name for parametrizations of generic classes.
`model_post_init`(context, /)	Override this method to perform additional initialization after __init__ and model_construct.
`model_rebuild`(*[, force, raise_errors, ...])	Try to rebuild the pydantic-core schema for the model.
`model_validate`(obj, *[, strict, ...])	Validate a pydantic model instance.
`model_validate_json`(json_data, *[, strict, ...])	!!! abstract "Usage Documentation"
`model_validate_strings`(obj, *[, strict, ...])	Validate the given object with string data against the Pydantic model.
`parse_file`(path, *[, content_type, ...])
`parse_obj`(obj)
`parse_raw`(b, *[, content_type, encoding, ...])
`schema`([by_alias, ref_template])
`schema_json`(*[, by_alias, ref_template])
`update_forward_refs`(**localns)
`validate`(value)

Attributes

`bounds`	Calculates and returns the bounds of the layer level in the z-direction.
`model_computed_fields`
`model_config`	Configuration for the model, should be a dictionary conforming to [ConfigDict][pydantic.config.ConfigDict].
`model_extra`	Get extra fields set during validation.
`model_fields`
`model_fields_set`	Returns the set of fields that have been explicitly set on this model instance.
`name`
`layer`
`derived_layer`
`thickness`
`thickness_tolerance`
`width_tolerance`
`zmin`
`zmin_tolerance`
`sidewall_angle`
`sidewall_angle_tolerance`
`width_to_z`
`z_to_bias`
`bias`
`mesh_order`
`material`
`info`

Reference

gdsfactory.technology.DerivedLayer

Reference

gdsfactory.technology.LayerMap