draw_donut_node_base: Draw Donut Chart Node

Description

Renders a node as a donut chart with an inner hole. The donut shows a fill proportion (0-1) as an arc starting from 12 o'clock.

Usage

draw_donut_node_base(
  x,
  y,
  size,
  values,
  colors = NULL,
  default_color = NULL,
  inner_ratio = 0.5,
  bg_color = "gray90",
  center_color = "white",
  border.col = "black",
  border.width = 1,
  donut_border.width = NULL,
  outer_border.col = NULL,
  border.lty = 1,
  show_value = TRUE,
  value_cex = 0.8,
  value_col = "black",
  value_fontface = "bold",
  value_fontfamily = "sans",
  value_digits = 2,
  value_prefix = "",
  value_suffix = ""
)

Arguments

x, y: Node center coordinates.
size: Outer radius.
values: Single numeric value (0-1) specifying fill proportion. 0.1 = 10% filled arc, 0.5 = 50% filled, 1.0 = full ring.
colors: Fill color for the donut ring.
default_color: Fallback color when colors is NULL.
inner_ratio: Ratio of inner to outer radius (0-1). Default 0.5.
bg_color: Background color for unfilled portion. Default "gray90".
border.col: Border color.
border.width: Border line width.
donut_border.width: Border width for donut ring (NULL = use border.width).
show_value: Logical: show value in center? Default FALSE.
value_cex: Text size for center value.
value_col: Text color for center value.
value_fontface: Font face for center value ("plain", "bold", "italic", "bold.italic").
value_fontfamily: Font family for center value ("sans", "serif", "mono").
value_digits: Decimal places for value display.
value_prefix: Text before value (e.g., "$").
value_suffix: Text after value (e.g., "%").