QuadEdge-0.2: QuadEdge structure for representing triangulations

Data.QuadEdge.Base

Documentation

type Index = Int Source

data Edge a Source

Constructors

Edge
Fields edgeTable :: EdgeTable attributes :: a

Instances

Eq a => Eq (Edge a)
Read a => Read (Edge a)
Show a => Show (Edge a)

type EdgeRef = (Index, Direction, Orientation)Source

type EdgeTable = (EdgeRef, EdgeRef, EdgeRef, EdgeRef)Source

data Direction Source

Constructors

Rot0
Rot1
Rot2
Rot3

Instances

Enum Direction
Eq Direction
Ord Direction
Read Direction
Show Direction

data Orientation Source

Constructors

Normal
Flipped

Instances

Enum Orientation
Eq Orientation
Ord Orientation
Read Orientation
Show Orientation

decrDir :: Direction -> Direction Source

incrDir :: Direction -> Direction Source

edgesET :: EdgeTable -> [EdgeRef]Source

emptyET :: Index -> EdgeTable Source

lookupET :: Direction -> EdgeTable -> EdgeRef Source

updateET :: EdgeTable -> Direction -> EdgeRef -> EdgeTable Source

isDual :: EdgeRef -> Bool Source

isPrimal :: EdgeRef -> Bool Source

isFlipped :: EdgeRef -> Bool Source

sym :: EdgeRef -> EdgeRef Source

rotInv :: EdgeRef -> EdgeRef Source

flip :: EdgeRef -> EdgeRef Source

rot :: EdgeRef -> EdgeRef Source