Add Annotations to a GC_chart

This function adds annotations to specified clusters within a GC chart. Annotations can be of various types and are positioned based on provided coordinates. The types of annotations available are: text, textMarker, line, arrow, symbol, rectangle, promoter, terminator and arc.

Usage

GC_annotation(GC_chart, type = "text", cluster = NULL, ...)

Arguments

Argument	Description
GC_chart	A GC chart object to which the annotations will be added.
type	The type of annotation to add: one of "text" (default), "textMarker", "line", "arrow", "symbol", "rectangle", "promoter", "terminator" or "arc".
cluster	Numeric or character vector specifying the clusters to which annotations should be added.
...	Additional parameters for customization of annotations, depending on the type.

Value

Updated GC chart object with added annotations.

See also

GC_trackMouse

Examples

genes_data <- data.frame(
  start = c(10, 50, 90, 130, 170, 210),
  end = c(40, 80, 120, 160, 200, 240),
  name = c('Gene 1', 'Gene 2', 'Gene 3', 'Gene 4', 'Gene 5', 'Gene 6'),
  group = c('A', 'A', 'B', 'B', 'A', 'C'),
  cluster = c(1, 1, 1, 2, 2, 2)
)

# Adding annotations to a GC chart
GC_chart(genes_data, cluster = "cluster", group = "group", height = "220px") %>%
  GC_annotation(
    type = "textMarker",
    cluster = 1,
    position = 24,
    text = "Gene 1",
    arrowSize = 8
  ) %>%
  GC_annotation(
    type = "text",
    text = "feature 1",
    x = 91,
    y = 71
  ) %>%
  GC_annotation(
    type = "symbol",
    symbol = "triangle",
    x = 95,
    y = 64,
    size = 10,
    rotation = 180
  ) %>%
  GC_annotation(
    type = "terminator",
    x = 81
  ) %>%
  GC_annotation(
    type = "promoter",
    x = 49
  ) %>%
  # Convenience function to track mouse position on hoover
  GC_trackMouse()