Renderer-Ready Vector Arrow Layer — ggwebgl_layer

Build a vector-arrow layer for downstream adapters.

Usage

ggwebgl_layer_vectors(
  data,
  x,
  y,
  xend,
  yend,
  z = NULL,
  zend = NULL,
  colour = NULL,
  rgba = NULL,
  alpha = NULL,
  width = NULL,
  head_size = NULL,
  id = NULL,
  frame = NULL,
  time = NULL,
  panel_id = 1L,
  geom = "adapter_vectors"
)

Arguments

data: Optional data frame supplying columns referenced by other arguments.
x, y: Coordinate vectors or column names in data.
xend, yend: Arrow endpoint coordinates.
z: Optional z coordinate vector or column name for 3D scenes.
zend: Optional arrow endpoint z coordinate for 3D scenes. When z or zend is omitted it defaults to zero in 3D projection.
colour: Optional colour vector or column name. Ignored when rgba is supplied.
rgba: Optional renderer-ready RGBA matrix/data frame with four columns, or vector of length n * 4, using values in [0, 1] or [0, 255].
alpha: Optional alpha vector or column name used with colour.
width: Optional shaft width in renderer pixels.
head_size: Optional arrowhead size in renderer pixels.
id: Optional stable primitive id vector or column name for selection.
frame, time: Optional timeline frame or time vector or column name.
panel_id: Scalar panel identifier for this layer.
geom: Debug geom name recorded in the payload.

Value

A normalized vector layer list.

Examples

arrows <- data.frame(x = 0:1, y = 0:1, xend = c(0.5, 1.4), yend = c(0.2, 1.2))
ggwebgl_layer_vectors(arrows, x = "x", y = "y", xend = "xend", yend = "yend")
#> $panel_id
#> [1] 1
#> 
#> $type
#> [1] "vectors"
#> 
#> $geom
#> [1] "adapter_vectors"
#> 
#> $rows
#> [1] 2
#> 
#> $x
#> [1] 0 1
#> 
#> $y
#> [1] 0 1
#> 
#> $xend
#> [1] 0.5 1.4
#> 
#> $yend
#> [1] 0.2 1.2
#> 
#> $width
#> [1] 1.5 1.5
#> 
#> $head_size
#> [1] 8 8
#> 
#> $rgba
#> [1] 0.1725490 0.2431373 0.3137255 1.0000000 0.1725490 0.2431373 0.3137255
#> [8] 1.0000000
#>