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geom_segment_c

Source: R/geom_segment_c.R
geom_segment_c.Rd

geom_segment_c supports coloring segment with continuous colors

Usage

geom_segment_c(
  mapping = NULL,
  data = NULL,
  position = "identity",
  lineend = "butt",
  na.rm = FALSE,
  show.legend = NA,
  inherit.aes = TRUE,
  arrow = NULL,
  arrow.fill = NULL,
  nsplit = 20,
  ...
)

Arguments

mapping

aes mapping

data

data

position

position

lineend

lineend

na.rm

logical

show.legend

logical

inherit.aes

logical

arrow

specification for arrow heads, as created by arrow().

arrow.fill

fill color to usse for the arrow head (if closed). NULL means use colour aesthetic.

nsplit

number of pieces used to split each segment for continuous colouring.

...

additional parameter

Value

add segment layer

See also

geom_segment

Author

Guangchuang Yu

Examples

set.seed(2019-06-28)
d = data.frame(x = rnorm(10),
              xend = rnorm(10),
              y = rnorm(10),
              yend = rnorm(10),
              v1 = rnorm(10),
              v2 = rnorm(10))
library(ggplot2)
ggplot(d) + geom_segment_c(aes(x = x, xend = xend, y=y, yend =yend, col0 = v1, col1 = v2)) +
   scale_color_viridis_c(name = "continuous colored lines") + 
   theme_minimal() + theme(legend.position=c(.2, .85)) + xlab(NULL) + ylab(NULL)