Rl Left Exit Top Entry Overflow

Gallery / Inter-section Routing

An RL section with a LEFT exit and a TOP entry whose port sits left of its internal run: the drop is predicted to land right of the run, so the run shifts left to meet the port and the section bbox grows left to keep the trailing station contained (issue #1980).

Mermaid source

examples/topologies/rl_left_exit_top_entry_overflow.mmd

%%metro title: RL left-exit top-entry overflow
%%metro line: g | Green | #2db572
%%metro grid: a | 1,0
%%metro grid: b | 1,1
%%metro grid: e | 0,1

graph LR
    subgraph a [Alpha]
        %%metro direction: RL
        %%metro exit: left | g
        a1[A one]
        a2[A two]
        a1 -->|g| a2
    end
    subgraph b [Beta]
        %%metro direction: RL
        %%metro entry: top | g
        %%metro exit: left | g
        b1[B one]
        b2[B two]
        b1 -->|g| b2
    end
    subgraph e [Epsilon]
        %%metro direction: RL
        %%metro entry: right | g
        e1[E one]
        e2[E two]
        e1 -->|g| e2
    end
    a2 -->|g| b1
    b2 -->|g| e1

CLI command

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

Rendered map