Diagonal Labels

Gallery / Feature Showcase

Opt-in diagonal station labels via `%%metro label_angle: 45`: a dense pre-processing trunk whose tilted names pack tighter than horizontal labels would, feeding a variant-calling section in the row below that fans out to three callers and back in -- the reserved vertical room keeps the hanging labels clear of the row beneath.

Mermaid source

%%metro title: Diagonal Labels (dense trunk)
%%metro style: dark
%%metro label_angle: 45
%%metro line: germline | Germline | #0570b0
%%metro line: tumor_only | Tumor only | #d62728
%%metro line: somatic | Tumor-normal pair | #756bb1
%%metro file: fastq_in | FASTQ
%%metro file: vcf_out | VCF
%%metro grid: preprocessing | 0,0
%%metro grid: variant_calling | 0,1

graph LR
    subgraph preprocessing [Pre-processing]
        %%metro exit: right | germline, tumor_only, somatic
        fastq_in[ ]
        fastqc[FastQC]
        fastp[FastP]
        umi[UMI consensus]
        bwa[BWA-MEM]
        merge_index[samtools merge/index]
        markdup[MarkDuplicates]
        bqsr[BaseRecalibrator]
        applybqsr[ApplyBQSR]
        mosdepth[mosdepth]
        ngscheckmate[NGSCheckmate]

        fastq_in -->|germline,tumor_only,somatic| fastqc
        fastqc -->|germline,tumor_only,somatic| fastp
        fastp -->|germline,tumor_only,somatic| umi
        umi -->|germline,tumor_only,somatic| bwa
        bwa -->|germline,tumor_only,somatic| merge_index
        merge_index -->|germline,tumor_only,somatic| markdup
        markdup -->|germline,tumor_only,somatic| bqsr
        bqsr -->|germline,tumor_only,somatic| applybqsr
        applybqsr -->|germline,tumor_only,somatic| mosdepth
        mosdepth -->|germline,tumor_only,somatic| ngscheckmate
    end

    subgraph variant_calling [Variant calling]
        %%metro entry: left | germline, tumor_only, somatic
        split[split by analysis]
        deepvariant[GATK]
        mutect[Mutect2]
        strelka[Strelka2]
        merge_vcf[merge VCFs]
        vcf_out[ ]

        split -->|germline| deepvariant
        split -->|tumor_only| mutect
        split -->|somatic| strelka
        deepvariant -->|germline| merge_vcf
        mutect -->|tumor_only| merge_vcf
        strelka -->|somatic| merge_vcf
        merge_vcf -->|germline,tumor_only,somatic| vcf_out
    end

    %% The dense angled-label trunk feeds the variant-calling section in the
    %% row below, which fans out to three callers (one per line) and fans
    %% back in at merge VCFs -- exercising the vertical room the hanging
    %% angled labels need above the row below.
    ngscheckmate -->|germline,tumor_only,somatic| split

CLI command

nf-metro render examples/diagonal_labels.mmd -o diagonal_labels.svg

Rendered map