OOF2: The Manual
HSVAColor (HSVAColor) |
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6.5.2. Subclasses |  |
Name
HSVAColor (HSVAColor) — Color specified by Hue, Saturation, Value, and Alpha.
Synopsis
HSVAColor(hue, saturation, value, alpha)
Details
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Base class:
TranslucentColor -
Parameters:
hue- Value of Hue. Type: A real number in the range [0, 360].
saturation- Value of Saturation. Type: A real number in the range [0, 1].
value- Value of ... hmmm ... Value. Type: A real number in the range [0, 1].
alpha- Opacity. Type: A real number in the range [0, 1].
Description
HSVAColor specifies a OpaqueColor in terms of its
hue, saturation,
value and opacity (alpha). We
stole our algorithm for converting between RGB and HSV from http://www.cs.rit.edu/~ncs/color/t_convert.html.
hue is angle on the color wheel, in degrees. 0 or
360 is red, 60 is yellow, 120 is green, 180 is cyan, 240 is blue,
and 300 is magenta.
saturation describes the “strength”
or “purity” of the color. It's a floating point number
between 0 and 1. Low values give pale, washed-out colors, tending
toward white.
value is the brightness of the color. It too is
a floating point number between 0 and 1, where 0 is darkest and 1 is
brightest.
alpha is the opacity of the color. It is a
floating point number between 0 and 1, where 0 is completely
transparent and 1 is completely opaque.
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HKL (HKLreader)
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HSVColor (HSVColor) |