Scales for point aesthetics

Description

These are various scales that can be applied to point aesthetics, such as point_color, point_fill, point_size. The individual scales all have the same usage as existing standard ggplot2 scales, only the name differs.

scale_point_shape(): Equivalent to scale_shape().

scale_point_size_continuous(): Equivalent to scale_size_continuous().

scale_point_color_hue(): Equivalent to scale_colour_hue().

scale_point_fill_hue(): Equivalent to scale_fill_hue().

scale_point_color_gradient(): Equivalent to scale_colour_gradient(). Note that this scale cannot draw a legend, however, because of limitations in guide_colorbar().

scale_point_fill_gradient(): Equivalent to scale_fill_gradient(). Note that this scale cannot draw a legend, however, because of limitations in guide_colorbar().

See Also

See scale_vline_color_hue() for specific scales for vline aesthetics and scale_discrete_manual() for a general discrete scale.

Examples

library(ggplot2)

# default scales
ggplot(iris, aes(x=Sepal.Length, y=Species, fill = Species)) +
  geom_density_ridges(aes(point_color = Species, point_fill = Species,
                          point_shape = Species),
                      alpha = .4, jittered_points = TRUE) +
  theme_ridges()

# modified scales
ggplot(iris, aes(x=Sepal.Length, y=Species, fill = Species)) +
  geom_density_ridges(aes(point_color = Species, point_fill = Species,
                          point_shape = Species),
                      alpha = .4, jittered_points = TRUE) +
  scale_fill_hue(l = 50) +
  scale_point_color_hue(l = 20) +
  scale_point_fill_hue(l = 70) +
  scale_discrete_manual("point_shape", values = c(21, 22, 23)) +
  theme_ridges()