Package 'prakriti'

Display one or all prakriti palettes

Description

Renders a base-graphics swatch view of one palette, or a stacked grid of all palettes. Useful for quick visual inspection in the R console / RStudio Plots pane.

Usage

display_prakriti(name = NULL, show_type = TRUE)

Arguments

name	Character or NULL. Name of the palette. If NULL (default), displays all 30 palettes stacked vertically.
show_type	Logical. If TRUE (default), includes the palette type (sequential, diverging, qualitative) in row labels. Must be TRUE or FALSE - to filter by type, use prakriti_info() instead.

Value

Invisibly returns NULL. Called for its side effect.

Examples

display_prakriti("rann")

display_prakriti()
display_prakriti(show_type = FALSE)

---

Tabular metadata for prakriti palettes

Description

Returns a data frame with one row per palette describing its name, type, length, and natural-landscape inspiration.

Usage

prakriti_info(name = NULL)

Arguments

name	Character or NULL. If supplied, restricts the result to the named palette(s). If NULL (default), returns all palettes.

Value

A data frame with columns name, type, n, inspiration.

Examples

prakriti_info()
prakriti_info("himalaya")

---

Names of available prakriti palettes

Description

Names of available prakriti palettes

Usage

prakriti_names()

Value

A character vector of palette names.

Examples

prakriti_names()

---

Build a color palette from a prakriti palette

Description

Returns a character vector of hex codes drawn from one of the named palettes in prakriti_palettes. Supports both discrete subsetting and continuous interpolation via grDevices::colorRampPalette().

Usage

prakriti_palette(
  name,
  n = NULL,
  type = c("discrete", "continuous"),
  direction = 1
)

Arguments

name	Character. Name of the palette. See prakriti_names().
n	Integer. Number of colors to return. If NULL (default), returns the full base palette unchanged.
type	Either "discrete" (subset / recycle base colors) or "continuous" (interpolate smoothly across the base colors).
direction	1 (default) or -1 to reverse the palette order.

Value

A character vector of hex codes with attributes name and type.

Examples

prakriti_palette("himalaya")
prakriti_palette("himalaya", n = 3)
prakriti_palette("himalaya", n = 50, type = "continuous")
prakriti_palette("thar", direction = -1)

---

Color palettes inspired by India's natural landscapes

Description

A named list of 30 palettes. Each element is itself a list with:

• colors - character vector of hex codes

• type - one of "sequential", "diverging", "qualitative"

• inspiration - short prose description of the source landscape

Usage

prakriti_palettes

Format

A named list of length 30.

Examples

names(prakriti_palettes)
prakriti_palettes$himalaya$colors

---

ggplot2 color and fill scales for prakriti palettes

Description

These functions plug prakriti palettes into ggplot2. By default the scale type (discrete vs. continuous) is chosen from the palette's metadata: qualitative palettes default to discrete; sequential and diverging palettes default to continuous. Override with discrete.

Usage

scale_color_prakriti(name, ..., discrete = NULL, direction = 1)

scale_colour_prakriti(name, ..., discrete = NULL, direction = 1)

scale_fill_prakriti(name, ..., discrete = NULL, direction = 1)

Arguments

name	Character. Name of the palette. See prakriti_names().
...	Additional arguments passed to the underlying ggplot2 scale constructor (ggplot2::discrete_scale(), ggplot2::scale_color_gradientn(), or ggplot2::scale_fill_gradientn()).
discrete	Logical or NULL. If NULL (default), inferred from the palette's type. Set TRUE to force discrete, FALSE for continuous.
direction	1 (default) or -1 to reverse the palette order.

Value

A ggplot2 scale object.

Examples

library(ggplot2)
ggplot(mtcars, aes(wt, mpg, color = factor(cyl))) +
  geom_point(size = 3) +
  scale_color_prakriti("valley_of_flowers")

ggplot(faithfuld, aes(waiting, eruptions, fill = density)) +
  geom_raster() +
  scale_fill_prakriti("himalaya")

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