class picazzo3.container.container_waveguides.ContainerWithRoundedWaveguides(*args, **kwargs)

Container with waveguides (picazzo3.container.container.ContainerWithWaveguides) which generates its waveguides from a given waveguide_template and routes. You can specify a bend radius and rounding algorithm for the waveguides in the Layout view.


trace_template: ( PCell and _WaveguideTemplate ), *None allowed*

Template for all ports, defaults to TECH.PCELLS.WG.DEFAULT.When set to None, the waveguide templates of the ports will be used.

auto_transition: ( bool, bool_, bool or int )

If True, automatically transition all ports of contents to the given trace template. If False, no transitions are applied, which might lead to a discontinuity in the waveguide. Also, if trace_template is None, no transitions are applied.

port_labels: ( List with type restriction, allowed types: <type ‘str’> ), *None allowed*

Labels of the ports to be processed. Set to None to process all ports.

contents: PCell

the contents of the container: the child cell


Dictionary for remapping of the port names of the contents to the external ports


The unique name of the pcell

Other Parameters:

trace_templates: List with type restriction, allowed types: <class ‘ipkiss3.pcell.cell.pcell.PCell’>, locked

list of templates to apply to all ports

waveguides: List with type restriction, allowed types: <class ‘ipkiss3.pcell.cell.pcell.PCell’>, locked


import technologies.silicon_photonics
from picazzo3.filters.ring import RingRect180DropFilter
from picazzo3.container.container_waveguides import ContainerWithRoundedWaveguides
from ipkiss3 import all as i3

my_ring = RingRect180DropFilter(name="my_ring3")
my_ring_layout = my_ring.Layout()

port_labels = ['E1', 'W0']

shapes = []
for pl in port_labels:
    p = my_ring_layout.ports[pl]
    shape = i3.Shape(points=[p.position])
    shape.add_polar(15.0, p.angle_deg)
    shape.add_polar(15.0, p.angle_deg + 90.0)

my_container = ContainerWithRoundedWaveguides(name="my_waveguide_container3",
layout = my_container.Layout(routes=shapes,




angle_step: float and number > 0

Angle step for rounding.

manhattan: ( bool, bool_, bool or int )

Adds rectangular blocks in the bends to avoid as much as possible non-manhattan angles.

view_name: str and ( Alphanumeric string or Contains _$ )

The name of the view


routes along which the waveguides will be generated

contents_transformation: GenericNoDistortTransform

flatten_contents: ( bool, bool_, bool or int )

if True, it will insert the contents as elements in the layout, rather than as an Instance

bend_radius: float and number > 0

Bend radius for the auto-generated bends.


Rounding algorithm used to generate the bends. Can be circular, spline, ….