| getCMYKColor |
(Number cyan, Number magenta, Number yellow [, Number black]) |
yoix.awt |
| getCMYKColor |
(Number cyan, Number magenta, Number yellow, Number black, int ps) |
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Returns a
Color
that represents the
cyan,
magenta,
and
yellow
color component arguments.
A color component that is a
double
should be a number between
0.0
and
1.0,
while a color component that is an
int
should be a number between
0
and
255.
Colors specified this way represent a subtractive color model where a
double
value of
1.0
or an
int
value of
CR 255
means no contribution from the corresponding additive component,
and a value of zero means a full contribution from that component.
The optional
black
argument should also be a
double
between
0.0
and
1.0
or an
int
between
0
and
255,
and when supplied is added to the other three components
before they are actually forced into the required range.
When non-zero, the
ps
argument indicates that the Adobe CMYK-to-RGB conversion formula found in the
PostScript Language Reference Manual should be used (the default).
That formula expressed in the Java language is:
rgb_color = new Color(
(float)(1.0 - Math.min(1.0, cyan + black)),
(float)(1.0 - Math.min(1.0, magenta + black)),
(float)(1.0 - Math.min(1.0, yellow + black))
);
A zero for the
ps
argument triggers use of the CMYK-to-RGB conversion formula found either at
wikipedia.org or in the comp.graphics newsgroup FAQ.
That formula expressed in the Java language is:
rgb_color = new Color(
(float)(1.0 - Math.min(1.0, cyan*(1.0 - black) + black)),
(float)(1.0 - Math.min(1.0, magenta*(1.0 - black) + black)),
(float)(1.0 - Math.min(1.0, yellow*(1.0 - black) + black))
);
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