Exit Lane Swap Shared Exit Port

Gallery / Multi-line Bundles

A locally-born line leaves through the same exit port as an arriving wrap line, so the lane the swap holder claims is the one the wrap line is already leaving by. Settling the exit frame has to exchange the two lanes in place rather than reorder the bundle around them.

Mermaid source

%%metro title: Exit Lane Swap Through A Shared Exit Port
%%metro line: lower | Lower branch | #3779b1
%%metro line: straight | Straight branch | #156075
%%metro line: ends | Swap holder | #dde6c4
%%metro line: wrap | Wrap branch | #6ef362
%%metro line: drop | Aligned drop | #e76f51
%%metro grid: drop_target | 0,0
%%metro grid: feeder | 0,1
%%metro grid: source | 1,1
%%metro grid: straight_target | 2,1
%%metro grid: lower_target | 0,2

graph LR
    subgraph drop_target [Aligned target]
        %%metro entry: bottom | drop
        drop_in[Drop]
    end
    subgraph feeder [Feeder]
        feed[Feed]
    end
    subgraph source [Settlement source]
        before[Before]
        split[Split]
        before -->|lower,straight,ends,wrap| split
    end
    subgraph straight_target [Straight]
        straight_in[Straight]
    end
    subgraph lower_target [Lower target]
        %%metro entry: right | wrap
        lower_in[Lower]
    end

    feed -->|lower,straight,wrap| before
    feed -->|drop| drop_in
    split -->|lower,straight,ends| straight_in
    split -->|wrap| lower_in

CLI command

nf-metro render examples/topologies/exit_lane_swap_shared_exit_port.mmd -o exit_lane_swap_shared_exit_port.svg

Rendered map