Configuration for design checks.

Import with from rosette.checks import ChecksConfig.

Controls tolerances for port connectivity checks (position, angle, width) and bend radius validation. Pass to run_checks() to customize checking behavior.

config = ChecksConfig(
    position_tolerance=0.001,
    angle_tolerance=0.1,
    width_tolerance=1e-6,
    check_widths=True,
    min_bend_radius=5.0,
    severity="error",
)
result = run_checks(cell, config=config)

Methods

func__init__

(position_tolerance=0.001, angle_tolerance=0.1, width_tolerance=1e-6, check_widths=True, min_bend_radius=None, severity='error') -> None

Create a new checks configuration.

paramposition_tolerancefloat

= 0.001

Maximum gap between port centres (in design units) to count as connected. Ports closer than this distance are considered a valid connection. Must be finite and nonnegative.

paramangle_tolerancefloat

= 0.1

Maximum angular deviation from anti-parallel (in degrees) to count as a valid connection. Two ports must face each other within this tolerance. Must be finite and between 0 and 180 degrees.

paramwidth_tolerancefloat

= 1e-6

Maximum absolute width difference, in design units, before connected ports produce a width-mismatch violation. Must be finite and nonnegative.

paramcheck_widthsbool

= True

Whether to flag width mismatches between connected ports. When enabled, connected ports with different widths generate a violation.

parammin_bend_radiusfloat | None

= None

Minimum allowed bend radius in design units. Set to None to skip bend radius checking. When set, bend diagnostics produced by Route are validated against this limit. Rosette retains those diagnostics privately alongside Cells created by Route.to_cell() and in rosette-layout JSON; generic Cell metadata is not inspected.

The value must be finite and positive. Cells with local polygon or path geometry must have an explicit route-annotation entry while this check is enabled; an empty entry means that the cell is known to contain no annotated bends.

paramseveritystr

= "error"

Default severity for configurable violations: "error" or "warning". Warning-only results still pass.

Returns

None

ChecksConfig

Methods

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