Chart.Text

textual chart elements

Documentation

data TextOptions

text options

Constructors

TextOptions

Fields

• textSize :: Double
• textAlignH :: AlignH
• textColor :: AlphaColour Double
• textFillRule :: FillRule
• textRotation :: Double
• textFont :: PreparedFont Double

Instances

Default TextOptions

Methods

def :: TextOptions

text_ :: TextOptions -> Text -> Chart b

Create a textual chart element

let text_Example = text_ def "Welcome to chart-unit!"

texts :: R2 r => TextOptions -> [Text] -> [r Double] -> Chart b

Creatye positioned text from a list

let ts = map (Text.singleton) ['a'..'z']
texts def ts [Pair (0.05*x) 0 |x <- [0..5]]

textChart :: Traversable f => [TextOptions] -> Aspect -> Rect Double -> [f (Text, Pair Double)] -> Chart b

A chart of text

textChart_ :: [TextOptions] -> Aspect -> [[(Text, Pair Double)]] -> Chart b

A chart of text scaled to its own range

import qualified Data.Text as Text
let ps = [Pair (sin (x*0.1)) x | x<-[0..25]]
textChart_ (repeat $ def {textSize=0.33}) widescreen [zip ts ps]

data LabelOptions

A label is a text element attached to a chart element

Constructors

LabelOptions

Fields

• labelText :: TextOptions
• labelOrientation :: Pair Double

  direction of label

• labelGap :: Double

  distance to label

Instances

Default LabelOptions

Methods

def :: LabelOptions

labelled :: LabelOptions -> Text -> Chart b -> Chart b

Label a chart element with some text

let lopts = def {textAlignH = AlignLeft, textRotation=45}
labelled (LabelOptions lopts (Pair 1 1) 0.05) "a label" (glyph_ def)