colors.xyz: some refactoring.

extra/colors/luv/luv.factor

@@ -1,8 +1,8 @@
 ! Copyright (C) 2014 John Benediktsson
 ! See http://factorcode.org/license.txt for BSD license
 
-USING: accessors colors colors.xyz kernel locals math
-math.functions ;
+USING: accessors colors colors.xyz colors.xyz.private kernel
+locals math math.functions ;
 
 IN: colors.luv
 
@@ -12,18 +12,11 @@ C: <luva> luva
 
 <PRIVATE
 
-CONSTANT: xyz_epsilon 216/24389
-CONSTANT: xyz_kappa 24389/27
-
 :: xyz-to-uv ( x y z -- u v )
     x y 15 * z 3 * + + :> d
     4 x * d /
     9 y * d / ; foldable
 
-CONSTANT: wp_x 0.95047
-CONSTANT: wp_y 1.00000
-CONSTANT: wp_z 1.08883
-
 PRIVATE>
 
 M: luva >rgba >xyza >rgba ;

extra/colors/xyy/summary.txt

@@ -1 +1 @@
-CIE xyY colors
+CIE 1931 xyY colors

extra/colors/xyy/xyy-docs.factor

@@ -2,10 +2,10 @@ USING: help.markup help.syntax ;
 IN: colors.xyy
 
 HELP: xyYa
-{ $class-description "The class of CIE xyY colors with an alpha channel." } ;
+{ $class-description "The class of CIE 1931 xyY colors with an alpha channel." } ;
 
-ARTICLE: "colors.xyy" "CIE xyY colors"
-"The " { $vocab-link "colors.xyy" } " vocabulary implements CIE xyY colors, together with an alpha channel."
+ARTICLE: "colors.xyy" "CIE 1931 xyY colors"
+"The " { $vocab-link "colors.xyy" } " vocabulary implements CIE 1931 xyY colors, together with an alpha channel."
 { $subsections
     xyYa
     <xyYa>

extra/colors/xyz/summary.txt

@@ -1 +1 @@
-CIE XYZ colors
+CIE 1931 XYZ colors

extra/colors/xyz/xyz-docs.factor

@@ -2,10 +2,10 @@ USING: help.markup help.syntax ;
 IN: colors.xyz
 
 HELP: xyza
-{ $class-description "The class of CIE XYZ colors with an alpha channel." } ;
+{ $class-description "The class of CIE 1931 XYZ colors with an alpha channel." } ;
 
-ARTICLE: "colors.xyz" "CIE XYZ colors"
-"The " { $vocab-link "colors.xyz" } " vocabulary implements CIE XYZ colors, together with an alpha channel."
+ARTICLE: "colors.xyz" "CIE 1931 XYZ colors"
+"The " { $vocab-link "colors.xyz" } " vocabulary implements CIE 1931 XYZ colors, together with an alpha channel."
 { $subsections
     xyza
     <xyza>

extra/colors/xyz/xyz.factor

@@ -12,6 +12,13 @@ C: <xyza> xyza
 
 <PRIVATE
 
+CONSTANT: xyz_epsilon 216/24389
+CONSTANT: xyz_kappa 24389/27
+
+CONSTANT: wp_x 0.95047
+CONSTANT: wp_y 1.00000
+CONSTANT: wp_z 1.08883
+
 : srgb-compand ( v -- v' )
     dup 0.0031308 <= [ 12.92 * ] [ 2.4 recip ^ 1.055 * 0.055 - ] if ;