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Bezier arch link between two genomic loci on the same track

Source: R/seq_arc.R
seq_arc.Rd

Single Bezier arch with no stems. Anchors live on the same track: when added inside a seq_track() via %+%, both t0 and t1 are locked to the parent track.

Usage

seq_arc(
  data = NULL,
  mapping = NULL,
  t0 = NULL,
  t1 = NULL,
  aesthetics = aes(),
  ...
)

Arguments

data

Optional GRanges or data.frame. Falls back to the parent track's data.

mapping

Optional map().

t0, t1

Track identifiers. Locked to the parent track when added inside a seq_track().

aesthetics

Optional aes(): color, linewidth, orientation ("+" / "-" / "*"), curve ("length", "equal", or numeric).

...

Reserved.

Value

A SeqArcR6 instance.

Details

data may be a GRanges (with anchor-1 columns in mcols) or a data.frame (BEDPE-like). map() field names are explicit:

x0, x1

required — genomic position of each anchor.

chrom0, chrom1

optional for GRanges (default seqnames(data)); required for data.frame.

y0, y1

optional baselines (default 0).

height

optional arch peak height in data-scale units (default 1).