scale_fill_dft: Extract named palette colours as hex codes for use in area...

In department-for-transport/dftplotr: Functions to Produce Charts in the DfT Style

Extract named palette colours as hex codes for use in area charts

Description

Function to use custom DfT palettes for fill colours in ggplot charts

Usage

scale_fill_dft(palette = "main.palette", gradient = FALSE, ...)

Arguments

palette	Named DfT palette to use in the fill. Defaults to "main.palette"
gradient	Boolean response whether to use gradient palette instead of standard palettes. Defaults to false.
...	Other arguments to pass to extract gradients function

Examples

## Simple bar chart using default palette

library(ggplot2)

df <- mpg[mpg$class %in% c("subcompact", "compact", "midsize", "suv"),]

ggplot(df, aes(manufacturer)) +
  geom_bar(aes(fill=class), width = 0.5) +
  theme(axis.text.x = element_text(angle=65, vjust=0.6)) +
  scale_fill_dft()
## Simple bar chart using alternative palette


library(ggplot2)

df <- mpg[mpg$class %in% c("subcompact", "compact", "midsize", "suv"),]

ggplot(df, aes(manufacturer)) +
  geom_bar(aes(fill=class), width = 0.5) +
  theme(axis.text.x = element_text(angle=65, vjust=0.6)) +
  scale_fill_dft("just.beachy")
## Larger bar chart using longer palette

library(ggplot2)

df <- mpg[mpg$class %in% c("subcompact", "compact", "midsize", "suv", "pickup", "minivan"),]

ggplot(df, aes(manufacturer)) +
  geom_bar(aes(fill=class), width = 0.5) +
  theme(axis.text.x = element_text(angle=65, vjust=0.6)) +
  scale_fill_dft(palette = "clear.skies")
## Larger bar chart using gradient palette

library(ggplot2)

ggplot(mpg, aes(manufacturer)) +
  geom_bar(aes(fill=class), width = 0.5) +
  theme(axis.text.x = element_text(angle=65, vjust=0.6)) +
  scale_fill_dft(gradient = TRUE, n = 7)

department-for-transport/dftplotr documentation built on April 3, 2024, 3:55 p.m.