geom_terminator: A 'ggplot2' geom to draw transcription terminators

In wilkox/gggenes: Draw Gene Arrow Maps in 'ggplot2'

A 'ggplot2' geom to draw transcription terminators

Description

geom_terminator() draws a 'T-shaped' glyph representing the position of a transcription terminator.

Usage

geom_terminator(
  mapping = NULL,
  data = NULL,
  stat = "identity",
  position = "identity",
  na.rm = FALSE,
  show.legend = NA,
  inherit.aes = FALSE,
  terminator_height = unit(3, "mm"),
  terminator_width = unit(3, "mm"),
  ...
)

Arguments

mapping, data, stat, position, na.rm, show.legend, inherit.aes, ...	As standard for ggplot2. inherit.aes is set to FALSE by default, as terminators are not likely to share any plot aesthetics other than y.
terminator_height	grid::unit() object giving the height of the vertical 'pillar' of the terminator glyph above the molecule line. Can be set as a negative value to draw terminators below the line. Defaults to 3 mm.
terminator_width	grid::unit() object giving the width of the horizontal 'beam' of the terminator glyph. Defaults to 3 mm.

Aesthetics

• x (required; position of the terminator)

• y (required; molecule)

• alpha

• color

• linetype

• linewidth (the former size aesthetic has been deprecated and will be removed in future versions)

See Also

geom_terminator_label(), geom_feature()

Examples

ggplot2::ggplot(example_genes, ggplot2::aes(xmin = start, xmax = end,
                                            y = molecule, fill = gene)) +
  geom_gene_arrow() +
  geom_terminator(data = example_terminators, ggplot2::aes(x = position, y = molecule)) +
  ggplot2::facet_wrap(~ molecule, scales = "free")

wilkox/gggenes documentation built on Sept. 28, 2023, 6:27 p.m.