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Remove redundant constraint #220

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Remove redundant constraint #220

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14 changes: 7 additions & 7 deletions chart/Graphics/Rendering/Chart/Easy.hs
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Original file line number Diff line number Diff line change
Expand Up @@ -6,7 +6,7 @@
-- License : BSD-style (see chart/COPYRIGHT)
--
-- A high level API for generating a plot quickly.
--
--
-- Importing the Easy module brings into scope all core functions and types required
-- for working with the chart library. This includes key external dependencies such as
-- Control.Lens and Data.Colour. The module also provides several helper functions for
Expand All @@ -17,10 +17,10 @@
--
-- > import Graphics.Rendering.Chart.Easy
-- > import Graphics.Rendering.Chart.Backend.Cairo
-- >
-- >
-- > signal :: [Double] -> [(Double,Double)]
-- > signal xs = [ (x,(sin (x*3.14159/45) + 1) / 2 * (sin (x*3.14159/5))) | x <- xs ]
-- >
-- >
-- > main = toFile def "example.png" $ do
-- > layout_title .= "Amplitude Modulation"
-- > plot (line "am" [signal [0,(0.5)..400]])
Expand Down Expand Up @@ -83,7 +83,7 @@ points title values = liftEC $ do
plot_points_style . point_color .= color
plot_points_style . point_shape .= shape
plot_points_style . point_radius .= 2

-- Show borders for unfilled shapes
when (not (isFilled shape)) $ do
plot_points_style . point_border_color .= color
Expand All @@ -93,10 +93,10 @@ isFilled :: PointShape -> Bool
isFilled PointShapeCircle = True
isFilled PointShapePolygon{} = True
isFilled _ = False

-- | Construct a bar chart with the given titles and data, using the
-- next available colors
bars :: (PlotValue x, BarsPlotValue y) => [String] -> [(x,[y])] -> EC l (PlotBars x y)
-- next available colors
bars :: (BarsPlotValue y) => [String] -> [(x, [y])] -> EC l (PlotBars x y)
bars titles vals = liftEC $ do
styles <- sequence [fmap mkStyle takeColor | _ <- titles]
plot_bars_titles .= titles
Expand Down