routing_collisions

routing_collisions(
    route: photonforge.Component,
    obstacles: photonforge.Rectangle
    | photonforge.Circle
    | photonforge.Polygon
    | photonforge.Path
    | photonforge.Component
    | photonforge.Reference
    | collections.abc.Sequence[
        photonforge.Rectangle
        | photonforge.Circle
        | photonforge.Polygon
        | photonforge.Path
        | photonforge.Component
        | photonforge.Reference
    ] = (),
    collision_layers: collections.abc.Sequence[tuple[int, int] | str]
    | None = None,
    collision_offset: float = 0,
) -> tuple[list[photonforge.Polygon], list[photonforge.Polygon]]

Find route collisions with obstacles and sibling route segments.

The route should be a component created by the internal parametric routing functions, or a net emitted by route_auto. Obstacles may be 2D structures, components, references, or sequences of those objects. Components and references are expanded through get_structures, optionally limited to collision_layers.

Args

• route: Route component to check.
• obstacles: Obstacles to test against the route geometry.
• collision_layers: Layers used to collect route and obstacle geometry. If None, all structure layers are used.
• collision_offset: Offset applied to route geometry before testing.

Returns

Tuple (obstacle_intersections, route_crossings). The first list contains route-obstacle intersection polygons. The second list contains intersections between route segments.