[CREATE] Color swatches

[Olivier BERTEN]

I forgot to add another feature that might be useful: display 
indications (nb of columns/rows, linebreaks, ...)



Olivier BERTEN a écrit :

> Hello!
>
>
> It's been a while now that I've been analyzing color swatches in 
> different software. Here is the result of my work: 
> http://www.selapa.net/couleurs/fileformats.php (it's an update of 
> http://wiki.scribus.net/index.php/Talk:New_Colours_Format with another 
> presentation). If someone has informations about other formats or 
> precisions about these ones, I'd be happy to add it to the list...
>
>
> I also started writing a conversion script (attached). For now, it can 
> only read pal (riff), aco, act, acb (adobe and autocad unencrypted 
> only), ase, acf, bcf, clr (colors only), cpl, qcl, bcs, cs. No write 
> function is there yet. It returns a dictionary with the content of the 
> swatch. All values are kept as in the original file, that's why 
> there's a 'orig' field in the dictionary. I'm pretty new to python 
> programming so my code is probably not optimal...
>
>
> Now some thoughts about color swatches in general and about the CREATE 
> draft:
>
>
> Registration color
>
> IMHO, this shouldn't come in a color swatch file. It's a "system" 
> color, just the opposite of 'None'. It depends of the colors used in 
> the document. If you're using only cyan in your document, registration 
> will be 100% cyan. If your document contains only magenta and yellow, 
> registration will be red. And if you have spot colors, registration 
> won't be C=100% M=100% Y=100% K=100%. In other words, registration 
> can't be defined out of the document's context. Registration should 
> just be added in the software's color list for any press work.
>
>
> Color swatch draft 
> <http://create.freedesktop.org/wiki/index.php/Swatches_-_colour_file_format/Draft>
>
> The name and space attributes shouldn't be mandatory. A color doesn't 
> need a name to come into a palette and many palettes are just a 
> arbitrary "geometrical" division of the possibilities of color model. 
> When you have #003399 in a palette, it's not because it looks like 
> anything in real life, it's just because its neighbors are #003366 and 
> #0033CC. It just shows different possibilities of RGB, whether you're 
> using sRGB or AdobeRGB doesn't matter. The same applies to "Black 20%" 
> (or C=10% M=20% Y=30% K%). There are a lot of such palettes where 
> neither the name or the color space have any importance. By the way, 
> Lab and XYZ don't need any color space since these are 
> device-independant models.
>
> That model also lacks swatch informations (name, copyright, license, 
> ...) and swatch-wide settings ("all rgb values are in Adobe1998 color 
> space", "all color names start with 'PANTONE' and end with 'C'", ...).
>
>
>
>
> Olivier
>


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