Target all data elements belonging to a ggplot2 layer

Produces an attribute selector matching the data-layer attribute injected by gganime's SVG annotation pipeline. Exposed for power users who compose animejs timelines against annotated ggplot2 SVG output directly.

Usage

anime_target_layer(layer_index)

Arguments

layer_index

Integer scalar. 1-based index of the ggplot2 layer.

Value

A CSS selector string of the form "[data-layer='<layer_index>']".

Examples

anime_target_layer(1L)
#> [1] "[data-layer='1']"