Draw points

Primitive element drawing one glyph per observation at (x, y).

Usage

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

Arguments

data

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

mapping

Optional SeqMap from map(). Required fields: x, y. x defaults to start(data); y defaults to 0.5 when unmapped. color, fill, and shape are auto-scaled when mapped to non-color columns: discrete columns get the flexoki palette; numeric columns get a viridis gradient legend.

aesthetics

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

...

Additional arguments reserved for future use.

Value

A SeqPointR6 instance (S3 class "SeqPoint" / "SeqElement").

Examples

seq_point(map(x = start, y = score))
#> <SeqPoint>
#>   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
seq_point(map(x = start, y = score, color = type))  # auto-legend
#> <SeqPoint>
#>   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