dot-get_alpha_from_hex_colour: Extract the numerical alpha representation of #RRGGBBAA...
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.get_alpha_from_hex_colour R Documentation
Extract the numerical alpha representation of #RRGGBBAA colour
Description
RGB colours can be encoded as hexadecimal values, as for example internally used by ggplot2.
For this, the numerical RGB values are mapped from their 0-255 value range to two-character hex-values.
This yields a string in the form of '#RRGGBB'. Additionally, a fourth optional block can be present encoding
the alpha transparency of the colour. This extends the string to '#RRGGBBAA'.
This function takes such a string as input for hex_colour, extracts the 'AA' part and returns the
numerical representation if it.
Usage
.get_alpha_from_hex_colour(hex_colour = NULL)
Arguments
hex_colour
A string in the format '#RRGGBBAA'
Value
The numeric representation of the colors' alpha value, rounded to 2 digits.
visR documentation built on May 29, 2024, 11:50 a.m.
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| .get_alpha_from_hex_colour | R Documentation |
Extract the numerical alpha representation of #RRGGBBAA colour
Description
RGB colours can be encoded as hexadecimal values, as for example internally used by ggplot2.
For this, the numerical RGB values are mapped from their 0-255 value range to two-character hex-values.
This yields a string in the form of '#RRGGBB'. Additionally, a fourth optional block can be present encoding
the alpha transparency of the colour. This extends the string to '#RRGGBBAA'.
This function takes such a string as input for hex_colour, extracts the 'AA' part and returns the
numerical representation if it.
Usage
.get_alpha_from_hex_colour(hex_colour = NULL)
Arguments
hex_colour |
A string in the format '#RRGGBBAA' |
Value
The numeric representation of the colors' alpha value, rounded to 2 digits.
R Package Documentation
Browse R Packages
We want your feedback!
Note that we can't provide technical support on individual packages. You should contact the package authors for that.
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