Convert Munsell Numeric to Munsell String Notation
Convert Munsell Numeric to Munsell String Notation
MunsellNameFromHVC( HVC, format='g', digits=2 ) HueStringFromNumber( Hue, format='g', digits=2 )
HVC |
a numeric Nx3 matrix or a vector that can be converted to such a matrix. Each row has an HVC vector, where H is Hue Number, and V and C are the standard Munsell Value and Chroma. The Hue is automatically wrapped to the interval (0,100]. |
Hue |
a numeric vector of Hue Numbers, which are automatically wrapped to the interval (0,100]. |
format |
determines the meaning of the argument |
digits |
when |
Both functions return a character vector of length N.
MunsellNameFromHVC() returns the full notation.
HueStringFromNumber() returns just initial the hue part;
which is useful for labeling plots.
If format='f', then Chroma is first rounded to to the given digits.
Chromas close to 0 may then become 0 and be displayed as a neutral, see Examples.
The width argument of formatC() is always set to 1,
to suppress leading spaces.
Glenn Davis
ASTM D 1535-97. Standard Practice for Specifying Color by the Munsell System. 1997
MunsellNameFromHVC( c(39,5.1,7.3, 0,5.1234,0.003 ) ) ## [1] "9GY 5.1/7.3" "10RP 5.1/0.003" MunsellNameFromHVC( c(39,5.1,7.34, 0,5.1234,0.003 ), format='f' ) ## [1] "9.00GY 5.10/7.34" "N 5.10/" HueStringFromNumber( seq( 2.5, 100, by=2.5 ) ) # make nice labels for a plot ## [1] "2.5R" "5R" "7.5R" "10R" "2.5YR" "5YR" "7.5YR" "10YR" "2.5Y" ## [10] "5Y" "7.5Y" "10Y" "2.5GY" "5GY" "7.5GY" "10GY" "2.5G" "5G" ## [19] "7.5G" "10G" "2.5BG" "5BG" "7.5BG" "10BG" "2.5B" "5B" "7.5B" ## [28] "10B" "2.5PB" "5PB" "7.5PB" "10PB" "2.5P" "5P" "7.5P" "10P" ## [37] "2.5RP" "5RP" "7.5RP" "10RP"
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