Graphics.Rendering.Chart.Plot.Bars

Bar Charts

Documentation

data PlotBars x y

Value describing how to plot a set of bars. Note that the input data is typed [(x,[y])], ie for each x value we plot several y values. Typically the size of each [y] list would be the same.

Constructors

PlotBars

Fields

• _plot_bars_style :: PlotBarsStyle

  This value specifies whether each value from [y] should be shown beside or above the previous value.

• _plot_bars_item_styles :: [(FillStyle, Maybe LineStyle)]

  The style in which to draw each element of [y]. A fill style is required, and if a linestyle is given, each bar will be outlined.

• _plot_bars_titles :: [String]

  The title of each element of [y]. These will be shown in the legend.

• _plot_bars_spacing :: PlotBarsSpacing

  This value controls how the widths of the bars are calculated. Either the widths of the bars, or the gaps between them can be fixed.

• _plot_bars_alignment :: PlotBarsAlignment

  This value controls how bars for a fixed x are aligned with respect to the device coordinate corresponding to x.

• _plot_bars_reference :: y

  The starting level for the chart (normally 0).

• _plot_bars_singleton_width :: Double
• _plot_bars_values :: [(x, [y])]

  The actual points to be plotted.

Instances

BarsPlotValue y => Default (PlotBars x y)

Defined in Graphics.Rendering.Chart.Plot.Bars

Methods

def :: PlotBars x y

data PlotBarsStyle

Constructors

BarsStacked

Bars for a fixed x are stacked vertically on top of each other.

BarsClustered

Bars for a fixed x are put horizontally beside each other.

Instances

Show PlotBarsStyle

Defined in Graphics.Rendering.Chart.Plot.Bars

Methods

showsPrec :: Int -> PlotBarsStyle -> ShowS

show :: PlotBarsStyle -> String

showList :: [PlotBarsStyle] -> ShowS

data PlotBarsSpacing

Constructors

BarsFixWidth Double

All bars have the same width in pixels.

BarsFixGap Double Double

(BarsFixGap g mw) means make the gaps between the bars equal to g, but with a minimum bar width of mw

Instances

Show PlotBarsSpacing

Defined in Graphics.Rendering.Chart.Plot.Bars

Methods

showsPrec :: Int -> PlotBarsSpacing -> ShowS

show :: PlotBarsSpacing -> String

showList :: [PlotBarsSpacing] -> ShowS

data PlotBarsAlignment

How bars for a given (x,[y]) are aligned with respect to screen coordinate corresponding to x (deviceX).

Constructors

BarsLeft

The left edge of bars is at deviceX

BarsCentered

Bars are centered around deviceX

BarsRight

The right edge of bars is at deviceX

Instances

Show PlotBarsAlignment

Defined in Graphics.Rendering.Chart.Plot.Bars

Methods

showsPrec :: Int -> PlotBarsAlignment -> ShowS

show :: PlotBarsAlignment -> String

showList :: [PlotBarsAlignment] -> ShowS

class PlotValue a => BarsPlotValue a where

Methods

barsReference :: a

barsAdd :: a -> a -> a

Instances

BarsPlotValue Double

Defined in Graphics.Rendering.Chart.Plot.Bars

Methods

barsReference :: Double

barsAdd :: Double -> Double -> Double

BarsPlotValue Int

Defined in Graphics.Rendering.Chart.Plot.Bars

Methods

barsReference :: Int

barsAdd :: Int -> Int -> Int

plotBars :: BarsPlotValue y => PlotBars x y -> Plot x y

plot_bars_style :: forall x y. Lens' (PlotBars x y) PlotBarsStyle

plot_bars_item_styles :: forall x y. Lens' (PlotBars x y) [(FillStyle, Maybe LineStyle)]

plot_bars_titles :: forall x y. Lens' (PlotBars x y) [String]

plot_bars_spacing :: forall x y. Lens' (PlotBars x y) PlotBarsSpacing

plot_bars_alignment :: forall x y. Lens' (PlotBars x y) PlotBarsAlignment

plot_bars_reference :: forall x y. Lens' (PlotBars x y) y

plot_bars_singleton_width :: forall x y. Lens' (PlotBars x y) Double

plot_bars_values :: forall x y x. Lens (PlotBars x y) (PlotBars x y) [(x, [y])] [(x, [y])]