On Wednesday, 31 August 2016 at 07:58:36 UTC, Andrea Fontana
wrote:
I always think the perfect colour library should work using a
superset of all colour spaces, for example cie xyz (is it a
superset, isn't it?). isColour(T) then IMO should check if
x,y,z properties exists (or toXYZ() method).
In this way every algorithm like "blend" or anything else could
be implemented just for xyz (and eventually specialized for
other colours if we want to avoid conversion overhead). In this
way it become easy to do cross-colour operations (for example:
apply a rgb mask over another color space) and to implement new
or strange color spaces (that automagically will work with all
"blend" & co.). To implement a new color spaces you just need
to map it to xyz (that should represent all - and more -
visible colours: rgb is a subset of visibile colours)
Andrea
I forgot that in this way it's quite easy to wrap external
class/struct to make them works with library. If we have a custom
COLOR class provided by another library we just need to write a
toXYZ(COLOR c) method (if it doesnt provide x,y,z properties) and
it works.
