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Draw bars

Source: R/seq_bar.R
seq_bar.Rd

Composite element drawing one filled rectangle per genomic range, spanning start..end on the x-axis with height y. Supply a group mapping to stack bars vertically at identical x positions.

Usage

seq_bar(data = NULL, mapping = NULL, aesthetics = aes(), ...)

Arguments

data

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

mapping

Optional SeqMap from map(). Recognised fields: x, y (bar height, default 1), group (stacking), fill (per-bar color).

aesthetics

Optional SeqAes from aes(). Supports fill, color, linewidth, alpha.

...

Additional arguments reserved for future use.

Value

A SeqBarR6 instance.

Examples

seq_bar(map(x = start, y = score))
#> <SeqBar>
#>   Inherits from: <SeqElement>
#>   Public:
#>     .infer_scale_y: function () 
#>     aesthetics: SeqAes
#>     auto_legend: NULL
#>     clone: function (deep = FALSE) 
#>     collect_legend_keys: function () 
#>     coordCanvas: NULL
#>     data: NULL
#>     draw: function () 
#>     initialize: function (data = NULL, mapping = NULL, aesthetics = aes(), ...) 
#>     legend: NULL
#>     mapping: SeqMap
#>     prep: function (layout_track, track_windows) 
#>     resolve: function (track_data = NULL, track_mapping = NULL) 
#>     resolved: NULL
#>     show_legend: TRUE