build_tf_layer_data: Build long-format data and new mapping for a single tf layer

In tidyfun: Tidy Functional Data Wrangling and Visualization

Build long-format data and new mapping for a single tf layer

Description

Evaluates the layer's tf aesthetics independently on their own natural grid (or the user-specified grid). Called by finalize_tf_ggplot() per layer.

Usage

build_tf_layer_data(
  layer_info,
  plot_tf_aes,
  scalar_col_map,
  layer_idx,
  enriched_data,
  user_arg,
  interpolate
)

Arguments

layer_info	List from all_layers with layer, parsed_aes, is_tf_layer
plot_tf_aes	tf aesthetics from the plot level (used when inherit.aes = TRUE)
scalar_col_map	Named list: key -> column name in enriched_data
layer_idx	Integer index of this layer (for keying layer-level scalar aes)
enriched_data	Data frame with original data + pre-evaluated scalar tf columns
user_arg	Optional evaluation grid (overrides natural grid)
interpolate	Whether to interpolate tf objects to arg

Value

NULL when no effective tf aes, otherwise list(long_data, new_mapping)

tidyfun documentation built on April 24, 2026, 5:06 p.m.