adjust_hsv {gplots} | R Documentation |
Adjust Color in HSV Space
Description
Adjust color hue, saturation, and/or alpha value.
Usage
adjust_hsv(col, h=NULL, s=NULL, v=NULL, alpha=NULL)
Arguments
col |
a color or vector of colors. |
h |
the desired hue. |
s |
the desired saturation. |
v |
the desired value. |
alpha |
the desired transparency. |
Details
Colors can be specified as a color name, a hexadecimal string, or an integer.
Hue, saturation, value, and transparency are specified as values from 0 to 1,
or NULL
to leave unchanged.
Value
Adjusted colors in hexadecimal string format.
Author(s)
Arni Magnusson.
See Also
col2rgb
, rgb2hsv
, and hsv
are the
underlying functions used to convert and adjust the colors.
Examples
col <- "#123456"
col2 <- adjust_hsv(col, h=0.1)
col3 <- adjust_hsv(col, s=0.1)
col4 <- adjust_hsv(col, v=0.7)
barplot(rep(1, 4), col=c(col, col2, col3, col4))
[Package gplots version 3.2.0 Index]