dot-replace_hex_alpha: Replaces the AA part of a #RRGGBBAA hex-colour.
In visR: Clinical Graphs and Tables Adhering to Graphical Principles
.replace_hex_alpha R Documentation
Replaces the AA part of a #RRGGBBAA hex-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 an '#RRGGBBAA' string as input for colour and a two-character hex-representation of an alpha value as an input for new_alpha, replaces the 'AA' part of colour with the new_alpha and returns the new colour.
Usage
.replace_hex_alpha(colour, new_alpha)
Arguments
colour
A character string of the format #RRGGBBAA.
new_alpha
A two-character string with the new alpha value.
Value
A hex-encoded RGBA colour.
visR documentation built on May 29, 2024, 11:50 a.m.
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| .replace_hex_alpha | R Documentation |
Replaces the AA part of a #RRGGBBAA hex-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 an '#RRGGBBAA' string as input for colour and a two-character hex-representation of an alpha value as an input for new_alpha, replaces the 'AA' part of colour with the new_alpha and returns the new colour.
Usage
.replace_hex_alpha(colour, new_alpha)
Arguments
colour |
A character string of the format #RRGGBBAA. |
new_alpha |
A two-character string with the new alpha value. |
Value
A hex-encoded RGBA colour.
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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