luigi.scarso at gmail.com
Fri Jul 8 11:52:20 CEST 2011
2011/7/8 Karel <akk64 at quick.cz>:
> Taco Hoekwater napsal(a):
>> On 07/08/2011 12:01 AM, Stephan Hennig wrote:
>>> I'm wondering what the meaning of variable defaultcolormodel is. The
>>> manual is rather terse (p.28):
>>> The ‘current default’ color model can be set up using the internal
>>> variable defaultcolormodel. Table 2 lists the valid values.
>>> Well, variable defaultcolormodel determines the colour space of the
>>> black ink that is used for drawing and filling strokes, i.e., whether 0,
>>> (0,0,0) or (0,0,0,1) is written into the output.
> I think it is not the case. I tried
> draw fullcircle scaled 10mm withcolor .5white;
> and the resulting color in the output is in rgb!
> One has firstly redefine white and background as numeric... or write only
hm. cmyk is the dual of rgb.
RGB off usually means black (ie. emissions are zero)
but cmyk off means "the color of the background" (i.e the light
reflected is 100% the light incident).
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