1 files changed, 27 insertions, 0 deletions
diff --git a/node_modules/chroma-js/src/conversions/hsv2rgb.coffee b/node_modules/chroma-js/src/conversions/hsv2rgb.coffee
new file mode 100644
index 0000000000..7d71c6c35c
--- /dev/null
+++ b/node_modules/chroma-js/src/conversions/hsv2rgb.coffee
@@ -0,0 +1,27 @@
+
+hsv2rgb = () ->
+    [h,s,v] = unpack arguments
+    v *= 255
+    if s is 0
+        r = g = b = v
+    else
+        h = 0 if h is 360
+        h -= 360 if h > 360
+        h += 360 if h < 0
+        h /= 60
+        i = Math.floor h
+        f = h - i
+        p = v * (1 - s)
+        q = v * (1 - s * f)
+        t = v * (1 - s * (1 - f))
+        switch i
+            when 0 then [r,g,b] = [v, t, p]
+            when 1 then [r,g,b] = [q, v, p]
+            when 2 then [r,g,b] = [p, v, t]
+            when 3 then [r,g,b] = [p, q, v]
+            when 4 then [r,g,b] = [t, p, v]
+            when 5 then [r,g,b] = [v, p, q]
+    r = Math.round r
+    g = Math.round g
+    b = Math.round b
+    [r, g, b]