- gdsfactory.cross_section.cross_section(width: float = 0.5, offset: float = 0, layer: tuple[int, int] | str | int | LayerEnum = 'WG', sections: tuple[Section, ...] | None = None, port_names: tuple[str, str] = ('o1', 'o2'), port_types: tuple[str, str] = ('optical', 'optical'), bbox_layers: Sequence[tuple[int, int] | str | int | LayerEnum] | None = None, bbox_offsets: Sequence[float] | None = None, cladding_layers: Sequence[tuple[int, int] | str | int | LayerEnum] | None = None, cladding_offsets: Sequence[float] | None = None, cladding_simplify: Sequence[float] | None = None, cladding_centers: Sequence[float] | None = None, radius: float | None = 10.0, radius_min: float | None = None, main_section_name: str = '_default')CrossSection
Return CrossSection.
- Parameters
width– main Section width (um).offset– main Section center offset (um).layer– main section layer.sections– list of Sections(width, offset, layer, ports).port_names– for input and output (‘o1’, ‘o2’).port_types– for input and output: electrical, optical, vertical_te …bbox_layers– list of layers bounding boxes to extrude.bbox_offsets– list of offset from bounding box edge.cladding_layers– list of layers to extrude.cladding_offsets– list of offset from main Section edge.cladding_simplify– Optional Tolerance value for the simplification algorithm. All points that can be removed without changing the resulting. polygon by more than the value listed here will be removed.cladding_centers– center offset for each cladding layer. Defaults to 0.radius– routing bend radius (um).radius_min– min acceptable bend radius.main_section_name– name of the main section. Defaults to _default
import gdsfactory as gf xs = gf.cross_section.cross_section(width=0.5, offset=0, layer='WG') p = gf.path.arc(radius=10, angle=45) c = p.extrude(xs) c.plot()
┌────────────────────────────────────────────────────────────┐ │ │ │ │ │ boox_layer │ │ │ │ ┌──────────────────────────────────────┐ │ │ │ ▲ │bbox_offset│ │ │ │ ├──────────►│ │ │ cladding_offset │ │ │ │ │ │ │ │ │ ├─────────────────────────▲──┴─────────┤ │ │ │ │ │ │ ─ ─┤ │ core width │ │ ├─ ─ center │ │ │ │ │ │ ├─────────────────────────▼────────────┤ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ └──────────────────────────────────────┘ │ │ │ │ │ │ │ └────────────────────────────────────────────────────────────┘