| 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]