DataViz.Layout.Hierarchy.Treemap

data TreemapNode a

Node with treemap layout coordinates Extends ValuedNode with x0, y0, x1, y1 bounds

Constructors

• TNode { children :: Array (TreemapNode a), data_ :: a, depth :: Int, height :: Int, value :: Number, x0 :: Number, x1 :: Number, y0 :: Number, y1 :: Number }

Instances

• (Eq a) => Eq (TreemapNode a)
• (Ord a) => Ord (TreemapNode a)
• (Show a) => Show (TreemapNode a)

type TileFunction a = TreemapNode a -> Number -> Number -> Number -> Number -> TreemapNode a

Tiling function type Takes parent node and bounds, positions children

type TreemapConfig a = { paddingBottom :: Number, paddingInner :: Number, paddingLeft :: Number, paddingOuter :: Number, paddingRight :: Number, paddingTop :: Number, round :: Boolean, size :: { height :: Number, width :: Number }, tile :: TileFunction a }

Treemap configuration

phi :: Number

Golden ratio for squarify

defaultTreemapConfig :: forall a. TreemapConfig a

Default treemap configuration

toTreemapNode :: forall a. ValuedNode a -> TreemapNode a

Convert ValuedNode to TreemapNode (without positioning)

treemap :: forall a. TreemapConfig a -> ValuedNode a -> TreemapNode a

Main treemap layout function

dice :: forall a. TreemapNode a -> Number -> Number -> Number -> Number -> TreemapNode a

Dice tiling: horizontal partitioning (varies x, constant y)

slice :: forall a. TreemapNode a -> Number -> Number -> Number -> Number -> TreemapNode a

Slice tiling: vertical partitioning (constant x, varies y)

sliceDice :: forall a. TileFunction a

Slice-dice tiling: alternates between slice and dice at each depth level Provides a simple alternating pattern

binary :: forall a. TileFunction a

Binary tiling: divides space based on splitting the value sum Simpler approach: split children into two groups, position each group with slice/dice

squarify :: forall a. Number -> TileFunction a

Squarify tiling: minimizes aspect ratios (creates more square-like rectangles)