Rail Boundary Bundle Fan
A bundled section feeding a per-section `%%metro line_spread: rails` section across the boundary. The three lines arrive at the rail section's entry port as one lane stack and fan out to their own rails on the leg inward, so each meets its own dot on the interchange pill instead of the whole bundle diving into the pill's centre (issue #1624).
Mermaid source
%%metro title: Rail boundary bundle fan%%metro line_spread: rails | calling%%metro label_angle: 45%%metro grid: prep | 0,0%%metro grid: calling | 1,0%%metro line: wgs | WGS | #2db572%%metro line: wes | WES | #0570b0%%metro line: panel | Panel | #f4a300
graph LR subgraph prep [Preprocessing] fastq[FASTQ] align[Align]
fastq -->|wgs,wes,panel| align end subgraph calling [Variant calling] hub[Recalibrate] deep[DeepVariant] haplo[HaplotypeCaller] freebayes[FreeBayes]
hub -->|wgs| deep hub -->|wes| haplo hub -->|panel| freebayes end align -->|wgs,wes,panel| hubCLI command
nf-metro render examples/topologies/rail_boundary_bundle_fan.mmd -o rail_boundary_bundle_fan.svg