Dnia 2011-11-09, o godz. 19:13:23 Wolfgang Schuster napisał(a):

Am 09.11.2011 um 18:37 schrieb Marcin Borkowski:

...

Hi all,

the manual (the "current draft") says that possible parameters for \definecolor are: r,g,b, c,m,y,k, s, h,t,a,p,e

While the first three (rgb), the second four (cmyk) and the third one (s) are pretty obvious for me - rgb, cmyk and greys, I suppose - I'm wondering what is the use of the others?

They are explained in the wiki: http://wiki.contextgarden.net/Colors

Hm, I can't find it there... Only "t" seems to stand for transparency, and "e" for the postscript color name (or so).

Hans posted also a while ago a list with all parameters and AFAIR a short explanation, search in the mail archive for the message.

I also couldn't find that; I searched Hans' emails for "color" and "definecolor", but to no avail, except for that "a" seemingly stands for "alternative". Not that this is a serious problem for me, but I'm a bit curious, so maybe someone could point me to the relevant part in the source and I'd try to understand it from there?

Wolfgang

Best, -- Marcin Borkowski

Dnia 2011-11-10, o godz. 10:04:55 Hans Hagen napisał(a):

On 10-11-2011 08:55, Marcin Borkowski wrote:

...

Dnia 2011-11-09, o godz. 19:13:23 Wolfgang Schuster napisał(a):

...

Am 09.11.2011 um 18:37 schrieb Marcin Borkowski:

...

Hi all,

the manual (the "current draft") says that possible parameters for \definecolor are: r,g,b,

red green blue

Obvious;).

...

...

...

c,m,y,k,

cyan magenta yellow black

As above;).

...

...

...

s,

gray (shade)

Didn't think of "shade", but I got that it was gray.

...

...

...

h,t,a,p,e

hexadecimal (html like) transparencyfactor transparancyalternative spotcolorfactor extraspotcolorname (in pdf resource)

Wow, now it's more clear. Just one question: what are the "transparency alternatives"? Best, -- Marcin Borkowski

On 12-11-2011 20:39, Aditya Mahajan wrote:

On Sat, 12 Nov 2011, Marcin Borkowski wrote:

...

...

hexadecimal (html like) transparencyfactor transparancyalternative spotcolorfactor extraspotcolorname (in pdf resource)

Wow, now it's more clear. Just one question: what are the "transparency alternatives"?

IIRC, they are documented in the metafun manual.

and in the pdf spec none normal multiply screen overlay softlight hardlight colordodge colorburn darken lighten difference exclusion hue saturation color luminosity ----------------------------------------------------------------- Hans Hagen | PRAGMA ADE Ridderstraat 27 | 8061 GH Hasselt | The Netherlands tel: 038 477 53 69 | voip: 087 875 68 74 | www.pragma-ade.com | www.pragma-pod.nl -----------------------------------------------------------------