<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<!--Rendered using the Haskell Html Library v0.2-->
<HTML
><HEAD
><META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=UTF-8"
><TITLE
>Data.Colour.RGBSpace.HSL</TITLE
><LINK HREF="haddock.css" REL="stylesheet" TYPE="text/css"
><SCRIPT SRC="haddock-util.js" TYPE="text/javascript"
></SCRIPT
><SCRIPT TYPE="text/javascript"
>window.onload = function () {setSynopsis("mini_Data-Colour-RGBSpace-HSL.html")};</SCRIPT
></HEAD
><BODY
><TABLE CLASS="vanilla" CELLSPACING="0" CELLPADDING="0"
><TR
><TD CLASS="topbar"
><TABLE CLASS="vanilla" CELLSPACING="0" CELLPADDING="0"
><TR
><TD
><IMG SRC="haskell_icon.gif" WIDTH="16" HEIGHT="16" ALT=" "
></TD
><TD CLASS="title"
>colour-2.3.1: A model for human colour/color perception</TD
><TD CLASS="topbut"
><A HREF="src/Data-Colour-RGBSpace-HSL.html"
>Source code</A
></TD
><TD CLASS="topbut"
><A HREF="index.html"
>Contents</A
></TD
><TD CLASS="topbut"
><A HREF="doc-index.html"
>Index</A
></TD
></TR
></TABLE
></TD
></TR
><TR
><TD CLASS="modulebar"
><TABLE CLASS="vanilla" CELLSPACING="0" CELLPADDING="0"
><TR
><TD
><FONT SIZE="6"
>Data.Colour.RGBSpace.HSL</FONT
></TD
></TR
></TABLE
></TD
></TR
><TR
><TD CLASS="s15"
></TD
></TR
><TR
><TD CLASS="s15"
></TD
></TR
><TR
><TD CLASS="section1"
>Synopsis</TD
></TR
><TR
><TD CLASS="s15"
></TD
></TR
><TR
><TD CLASS="body"
><TABLE CLASS="vanilla" CELLSPACING="0" CELLPADDING="0"
><TR
><TD CLASS="decl"
><SPAN CLASS="keyword"
>data</SPAN
> <A HREF="#t%3ARGB"
>RGB</A
> a</TD
></TR
><TR
><TD CLASS="s8"
></TD
></TR
><TR
><TD CLASS="decl"
><A HREF="#v%3AhslView"
>hslView</A
> :: (<A HREF="/usr/share/doc/ghc/html/libraries/base-4.2.0.2/Prelude.html#t%3AFractional"
>Fractional</A
> a, <A HREF="/usr/share/doc/ghc/html/libraries/base-4.2.0.2/Data-Ord.html#t%3AOrd"
>Ord</A
> a) => <A HREF="Data-Colour-RGBSpace-HSL.html#t%3ARGB"
>RGB</A
> a -> (a, a, a)</TD
></TR
><TR
><TD CLASS="s8"
></TD
></TR
><TR
><TD CLASS="decl"
><A HREF="#v%3Ahue"
>hue</A
> :: (<A HREF="/usr/share/doc/ghc/html/libraries/base-4.2.0.2/Prelude.html#t%3AFractional"
>Fractional</A
> a, <A HREF="/usr/share/doc/ghc/html/libraries/base-4.2.0.2/Data-Ord.html#t%3AOrd"
>Ord</A
> a) => <A HREF="Data-Colour-RGBSpace-HSL.html#t%3ARGB"
>RGB</A
> a -> a</TD
></TR
><TR
><TD CLASS="s8"
></TD
></TR
><TR
><TD CLASS="decl"
><A HREF="#v%3Asaturation"
>saturation</A
> :: (<A HREF="/usr/share/doc/ghc/html/libraries/base-4.2.0.2/Prelude.html#t%3AFractional"
>Fractional</A
> a, <A HREF="/usr/share/doc/ghc/html/libraries/base-4.2.0.2/Data-Ord.html#t%3AOrd"
>Ord</A
> a) => <A HREF="Data-Colour-RGBSpace-HSL.html#t%3ARGB"
>RGB</A
> a -> a</TD
></TR
><TR
><TD CLASS="s8"
></TD
></TR
><TR
><TD CLASS="decl"
><A HREF="#v%3Alightness"
>lightness</A
> :: (<A HREF="/usr/share/doc/ghc/html/libraries/base-4.2.0.2/Prelude.html#t%3AFractional"
>Fractional</A
> a, <A HREF="/usr/share/doc/ghc/html/libraries/base-4.2.0.2/Data-Ord.html#t%3AOrd"
>Ord</A
> a) => <A HREF="Data-Colour-RGBSpace-HSL.html#t%3ARGB"
>RGB</A
> a -> a</TD
></TR
><TR
><TD CLASS="s8"
></TD
></TR
><TR
><TD CLASS="decl"
><A HREF="#v%3Ahsl"
>hsl</A
> :: (<A HREF="/usr/share/doc/ghc/html/libraries/base-4.2.0.2/Prelude.html#t%3ARealFrac"
>RealFrac</A
> a, <A HREF="/usr/share/doc/ghc/html/libraries/base-4.2.0.2/Data-Ord.html#t%3AOrd"
>Ord</A
> a) => a -> a -> a -> <A HREF="Data-Colour-RGBSpace-HSL.html#t%3ARGB"
>RGB</A
> a</TD
></TR
></TABLE
></TD
></TR
><TR
><TD CLASS="s15"
></TD
></TR
><TR
><TD CLASS="section1"
>Documentation</TD
></TR
><TR
><TD CLASS="s15"
></TD
></TR
><TR
><TD CLASS="topdecl"
><TABLE CLASS="declbar"
><TR
><TD CLASS="declname"
><SPAN CLASS="keyword"
>data</SPAN
> <A NAME="t:RGB"
><A NAME="t%3ARGB"
></A
></A
><B
>RGB</B
> a </TD
><TD CLASS="declbut"
><A HREF="src/Data-Colour-RGB.html#RGB"
>Source</A
></TD
></TR
></TABLE
></TD
></TR
><TR
><TD CLASS="body"
><TABLE CLASS="vanilla" CELLSPACING="0" CELLPADDING="0"
><TR
><TD CLASS="ndoc"
>An RGB triple for an unspecified colour space.
</TD
></TR
><TR
><TD CLASS="section4"
><IMG SRC="minus.gif" CLASS="coll" ONCLICK="toggle(this,'i:RGB')" ALT="show/hide"
> Instances</TD
></TR
><TR
><TD CLASS="body"
><DIV ID="i:RGB" STYLE="display:block;"
><TABLE CLASS="vanilla" CELLSPACING="1" CELLPADDING="0"
><TR
><TD CLASS="decl"
><A HREF="/usr/share/doc/ghc/html/libraries/base-4.2.0.2/Control-Monad.html#t%3AFunctor"
>Functor</A
> <A HREF="Data-Colour-RGBSpace-HSL.html#t%3ARGB"
>RGB</A
></TD
></TR
><TR
><TD CLASS="decl"
><A HREF="/usr/share/doc/ghc/html/libraries/base-4.2.0.2/Control-Applicative.html#t%3AApplicative"
>Applicative</A
> <A HREF="Data-Colour-RGBSpace-HSL.html#t%3ARGB"
>RGB</A
></TD
></TR
><TR
><TD CLASS="decl"
><A HREF="/usr/share/doc/ghc/html/libraries/base-4.2.0.2/Data-Eq.html#t%3AEq"
>Eq</A
> a => <A HREF="/usr/share/doc/ghc/html/libraries/base-4.2.0.2/Data-Eq.html#t%3AEq"
>Eq</A
> (<A HREF="Data-Colour-RGBSpace-HSL.html#t%3ARGB"
>RGB</A
> a)</TD
></TR
><TR
><TD CLASS="decl"
><A HREF="/usr/share/doc/ghc/html/libraries/base-4.2.0.2/Text-Read.html#t%3ARead"
>Read</A
> a => <A HREF="/usr/share/doc/ghc/html/libraries/base-4.2.0.2/Text-Read.html#t%3ARead"
>Read</A
> (<A HREF="Data-Colour-RGBSpace-HSL.html#t%3ARGB"
>RGB</A
> a)</TD
></TR
><TR
><TD CLASS="decl"
><A HREF="/usr/share/doc/ghc/html/libraries/base-4.2.0.2/Text-Show.html#t%3AShow"
>Show</A
> a => <A HREF="/usr/share/doc/ghc/html/libraries/base-4.2.0.2/Text-Show.html#t%3AShow"
>Show</A
> (<A HREF="Data-Colour-RGBSpace-HSL.html#t%3ARGB"
>RGB</A
> a)</TD
></TR
></TABLE
></DIV
></TD
></TR
></TABLE
></TD
></TR
><TR
><TD CLASS="s15"
></TD
></TR
><TR
><TD CLASS="topdecl"
><TABLE CLASS="declbar"
><TR
><TD CLASS="declname"
><A NAME="v:hslView"
><A NAME="v%3AhslView"
></A
></A
><B
>hslView</B
> :: (<A HREF="/usr/share/doc/ghc/html/libraries/base-4.2.0.2/Prelude.html#t%3AFractional"
>Fractional</A
> a, <A HREF="/usr/share/doc/ghc/html/libraries/base-4.2.0.2/Data-Ord.html#t%3AOrd"
>Ord</A
> a) => <A HREF="Data-Colour-RGBSpace-HSL.html#t%3ARGB"
>RGB</A
> a -> (a, a, a)</TD
><TD CLASS="declbut"
><A HREF="src/Data-Colour-RGBSpace-HSL.html#hslView"
>Source</A
></TD
></TR
></TABLE
></TD
></TR
><TR
><TD CLASS="doc"
>Returns the HSL (hue-saturation-lightness) coordinates of an <TT
><A HREF="Data-Colour-RGBSpace-HSL.html#t%3ARGB"
>RGB</A
></TT
> triple.
See <TT
><A HREF="Data-Colour-RGBSpace-HSL.html#v%3Ahue"
>hue</A
></TT
>, <TT
><A HREF="Data-Colour-RGBSpace-HSL.html#v%3Asaturation"
>saturation</A
></TT
>, and <TT
><A HREF="Data-Colour-RGBSpace-HSL.html#v%3Alightness"
>lightness</A
></TT
>.
</TD
></TR
><TR
><TD CLASS="s15"
></TD
></TR
><TR
><TD CLASS="topdecl"
><TABLE CLASS="declbar"
><TR
><TD CLASS="declname"
><A NAME="v:hue"
><A NAME="v%3Ahue"
></A
></A
><B
>hue</B
> :: (<A HREF="/usr/share/doc/ghc/html/libraries/base-4.2.0.2/Prelude.html#t%3AFractional"
>Fractional</A
> a, <A HREF="/usr/share/doc/ghc/html/libraries/base-4.2.0.2/Data-Ord.html#t%3AOrd"
>Ord</A
> a) => <A HREF="Data-Colour-RGBSpace-HSL.html#t%3ARGB"
>RGB</A
> a -> a</TD
><TD CLASS="declbut"
><A HREF="src/Data-Colour-RGB.html#hue"
>Source</A
></TD
></TR
></TABLE
></TD
></TR
><TR
><TD CLASS="doc"
>The <TT
><A HREF="Data-Colour-RGBSpace-HSL.html#v%3Ahue"
>hue</A
></TT
> coordinate of an <TT
><A HREF="Data-Colour-RGBSpace-HSL.html#t%3ARGB"
>RGB</A
></TT
> value is in degrees. Its value is
always in the range 0-360.
</TD
></TR
><TR
><TD CLASS="s15"
></TD
></TR
><TR
><TD CLASS="topdecl"
><TABLE CLASS="declbar"
><TR
><TD CLASS="declname"
><A NAME="v:saturation"
><A NAME="v%3Asaturation"
></A
></A
><B
>saturation</B
> :: (<A HREF="/usr/share/doc/ghc/html/libraries/base-4.2.0.2/Prelude.html#t%3AFractional"
>Fractional</A
> a, <A HREF="/usr/share/doc/ghc/html/libraries/base-4.2.0.2/Data-Ord.html#t%3AOrd"
>Ord</A
> a) => <A HREF="Data-Colour-RGBSpace-HSL.html#t%3ARGB"
>RGB</A
> a -> a</TD
><TD CLASS="declbut"
><A HREF="src/Data-Colour-RGBSpace-HSL.html#saturation"
>Source</A
></TD
></TR
></TABLE
></TD
></TR
><TR
><TD CLASS="doc"
>Returns the saturation coordinate of an <TT
><A HREF="Data-Colour-RGBSpace-HSL.html#t%3ARGB"
>RGB</A
></TT
> triple for the HSL
(hue-saturation-lightness) system.
Note: This is different from Data.Colour.RGBSpace.HSV.saturation for
the <A HREF="Data-Colour-RGBSpace-HSV.html"
>Data.Colour.RGBSpace.HSV</A
>
</TD
></TR
><TR
><TD CLASS="s15"
></TD
></TR
><TR
><TD CLASS="topdecl"
><TABLE CLASS="declbar"
><TR
><TD CLASS="declname"
><A NAME="v:lightness"
><A NAME="v%3Alightness"
></A
></A
><B
>lightness</B
> :: (<A HREF="/usr/share/doc/ghc/html/libraries/base-4.2.0.2/Prelude.html#t%3AFractional"
>Fractional</A
> a, <A HREF="/usr/share/doc/ghc/html/libraries/base-4.2.0.2/Data-Ord.html#t%3AOrd"
>Ord</A
> a) => <A HREF="Data-Colour-RGBSpace-HSL.html#t%3ARGB"
>RGB</A
> a -> a</TD
><TD CLASS="declbut"
><A HREF="src/Data-Colour-RGBSpace-HSL.html#lightness"
>Source</A
></TD
></TR
></TABLE
></TD
></TR
><TR
><TD CLASS="doc"
>Returns the lightness coordinate of an <TT
><A HREF="Data-Colour-RGBSpace-HSL.html#t%3ARGB"
>RGB</A
></TT
> triple for the HSL
(hue-saturation-lightness) system.
</TD
></TR
><TR
><TD CLASS="s15"
></TD
></TR
><TR
><TD CLASS="topdecl"
><TABLE CLASS="declbar"
><TR
><TD CLASS="declname"
><A NAME="v:hsl"
><A NAME="v%3Ahsl"
></A
></A
><B
>hsl</B
> :: (<A HREF="/usr/share/doc/ghc/html/libraries/base-4.2.0.2/Prelude.html#t%3ARealFrac"
>RealFrac</A
> a, <A HREF="/usr/share/doc/ghc/html/libraries/base-4.2.0.2/Data-Ord.html#t%3AOrd"
>Ord</A
> a) => a -> a -> a -> <A HREF="Data-Colour-RGBSpace-HSL.html#t%3ARGB"
>RGB</A
> a</TD
><TD CLASS="declbut"
><A HREF="src/Data-Colour-RGBSpace-HSL.html#hsl"
>Source</A
></TD
></TR
></TABLE
></TD
></TR
><TR
><TD CLASS="doc"
>Convert HSL (hue-saturation-lightness) coordinates to an <TT
><A HREF="Data-Colour-RGBSpace-HSL.html#t%3ARGB"
>RGB</A
></TT
> value.
Hue is expected to be measured in degrees.
</TD
></TR
><TR
><TD CLASS="s15"
></TD
></TR
><TR
><TD CLASS="botbar"
>Produced by <A HREF="http://www.haskell.org/haddock/"
>Haddock</A
> version 2.6.1</TD
></TR
></TABLE
></BODY
></HTML
>
