Data.Geometry.Vector

Documentation

module Data.Geometry.Vector.VectorFamily

module Linear.Vector

data C (n :: Nat)

A proxy which can be used for the coordinates.

Constructors

C

Instances

Eq (C n)

Defined in Data.Geometry.Vector.VectorFixed

Methods

(==) :: C n -> C n -> Bool

(/=) :: C n -> C n -> Bool

Ord (C n)

Defined in Data.Geometry.Vector.VectorFixed

Methods

compare :: C n -> C n -> Ordering

(<) :: C n -> C n -> Bool

(<=) :: C n -> C n -> Bool

(>) :: C n -> C n -> Bool

(>=) :: C n -> C n -> Bool

max :: C n -> C n -> C n

min :: C n -> C n -> C n

Read (C n)

Defined in Data.Geometry.Vector.VectorFixed

Methods

readsPrec :: Int -> ReadS (C n)

readList :: ReadS [C n]

readPrec :: ReadPrec (C n)

readListPrec :: ReadPrec [C n]

Show (C n)

Defined in Data.Geometry.Vector.VectorFixed

Methods

showsPrec :: Int -> C n -> ShowS

show :: C n -> String

showList :: [C n] -> ShowS

class Additive (Diff p) => Affine (p :: * -> *) where

An affine space is roughly a vector space in which we have forgotten or at least pretend to have forgotten the origin.

a .+^ (b .-. a)  =  b@
(a .+^ u) .+^ v  =  a .+^ (u ^+^ v)@
(a .-. b) ^+^ v  =  (a .+^ v) .-. q@

Minimal complete definition

(.-.), (.+^)

Associated Types

type Diff (p :: * -> *) :: * -> *

Methods

(.-.) :: Num a => p a -> p a -> Diff p a infixl 6

Get the difference between two points as a vector offset.

(.+^) :: Num a => p a -> Diff p a -> p a infixl 6

Add a vector offset to a point.

(.-^) :: Num a => p a -> Diff p a -> p a infixl 6

Subtract a vector offset from a point.

Instances

Affine []

Defined in Linear.Affine

Associated Types

type Diff [] :: * -> *

Methods

(.-.) :: Num a => [a] -> [a] -> Diff [] a

(.+^) :: Num a => [a] -> Diff [] a -> [a]

(.-^) :: Num a => [a] -> Diff [] a -> [a]

Affine Maybe

Defined in Linear.Affine

Associated Types

type Diff Maybe :: * -> *

Methods

(.-.) :: Num a => Maybe a -> Maybe a -> Diff Maybe a

(.+^) :: Num a => Maybe a -> Diff Maybe a -> Maybe a

(.-^) :: Num a => Maybe a -> Diff Maybe a -> Maybe a

Affine Complex

Defined in Linear.Affine

Associated Types

type Diff Complex :: * -> *

Methods

(.-.) :: Num a => Complex a -> Complex a -> Diff Complex a

(.+^) :: Num a => Complex a -> Diff Complex a -> Complex a

(.-^) :: Num a => Complex a -> Diff Complex a -> Complex a

Affine ZipList

Defined in Linear.Affine

Associated Types

type Diff ZipList :: * -> *

Methods

(.-.) :: Num a => ZipList a -> ZipList a -> Diff ZipList a

(.+^) :: Num a => ZipList a -> Diff ZipList a -> ZipList a

(.-^) :: Num a => ZipList a -> Diff ZipList a -> ZipList a

Affine Identity

Defined in Linear.Affine

Associated Types

type Diff Identity :: * -> *

Methods

(.-.) :: Num a => Identity a -> Identity a -> Diff Identity a

(.+^) :: Num a => Identity a -> Diff Identity a -> Identity a

(.-^) :: Num a => Identity a -> Diff Identity a -> Identity a

Affine IntMap

Defined in Linear.Affine

Associated Types

type Diff IntMap :: * -> *

Methods

(.-.) :: Num a => IntMap a -> IntMap a -> Diff IntMap a

(.+^) :: Num a => IntMap a -> Diff IntMap a -> IntMap a

(.-^) :: Num a => IntMap a -> Diff IntMap a -> IntMap a

Affine Vector

Defined in Linear.Affine

Associated Types

type Diff Vector :: * -> *

Methods

(.-.) :: Num a => Vector a -> Vector a -> Diff Vector a

(.+^) :: Num a => Vector a -> Diff Vector a -> Vector a

(.-^) :: Num a => Vector a -> Diff Vector a -> Vector a

Affine Plucker

Defined in Linear.Affine

Associated Types

type Diff Plucker :: * -> *

Methods

(.-.) :: Num a => Plucker a -> Plucker a -> Diff Plucker a

(.+^) :: Num a => Plucker a -> Diff Plucker a -> Plucker a

(.-^) :: Num a => Plucker a -> Diff Plucker a -> Plucker a

Affine Quaternion

Defined in Linear.Affine

Associated Types

type Diff Quaternion :: * -> *

Methods

(.-.) :: Num a => Quaternion a -> Quaternion a -> Diff Quaternion a

(.+^) :: Num a => Quaternion a -> Diff Quaternion a -> Quaternion a

(.-^) :: Num a => Quaternion a -> Diff Quaternion a -> Quaternion a

Affine V0

Defined in Linear.Affine

Associated Types

type Diff V0 :: * -> *

Methods

(.-.) :: Num a => V0 a -> V0 a -> Diff V0 a

(.+^) :: Num a => V0 a -> Diff V0 a -> V0 a

(.-^) :: Num a => V0 a -> Diff V0 a -> V0 a

Affine V4

Defined in Linear.Affine

Associated Types

type Diff V4 :: * -> *

Methods

(.-.) :: Num a => V4 a -> V4 a -> Diff V4 a

(.+^) :: Num a => V4 a -> Diff V4 a -> V4 a

(.-^) :: Num a => V4 a -> Diff V4 a -> V4 a

Affine V3

Defined in Linear.Affine

Associated Types

type Diff V3 :: * -> *

Methods

(.-.) :: Num a => V3 a -> V3 a -> Diff V3 a

(.+^) :: Num a => V3 a -> Diff V3 a -> V3 a

(.-^) :: Num a => V3 a -> Diff V3 a -> V3 a

Affine V2

Defined in Linear.Affine

Associated Types

type Diff V2 :: * -> *

Methods

(.-.) :: Num a => V2 a -> V2 a -> Diff V2 a

(.+^) :: Num a => V2 a -> Diff V2 a -> V2 a

(.-^) :: Num a => V2 a -> Diff V2 a -> V2 a

Affine V1

Defined in Linear.Affine

Associated Types

type Diff V1 :: * -> *

Methods

(.-.) :: Num a => V1 a -> V1 a -> Diff V1 a

(.+^) :: Num a => V1 a -> Diff V1 a -> V1 a

(.-^) :: Num a => V1 a -> Diff V1 a -> V1 a

(Eq k, Hashable k) => Affine (HashMap k)

Defined in Linear.Affine

Associated Types

type Diff (HashMap k) :: * -> *

Methods

(.-.) :: Num a => HashMap k a -> HashMap k a -> Diff (HashMap k) a

(.+^) :: Num a => HashMap k a -> Diff (HashMap k) a -> HashMap k a

(.-^) :: Num a => HashMap k a -> Diff (HashMap k) a -> HashMap k a

Ord k => Affine (Map k)

Defined in Linear.Affine

Associated Types

type Diff (Map k) :: * -> *

Methods

(.-.) :: Num a => Map k a -> Map k a -> Diff (Map k) a

(.+^) :: Num a => Map k a -> Diff (Map k) a -> Map k a

(.-^) :: Num a => Map k a -> Diff (Map k) a -> Map k a

Additive f => Affine (Point f)

Defined in Linear.Affine

Associated Types

type Diff (Point f) :: * -> *

Methods

(.-.) :: Num a => Point f a -> Point f a -> Diff (Point f) a

(.+^) :: Num a => Point f a -> Diff (Point f) a -> Point f a

(.-^) :: Num a => Point f a -> Diff (Point f) a -> Point f a

Arity d => Affine (Vector d)

Defined in Data.Geometry.Vector.VectorFixed

Associated Types

type Diff (Vector d) :: * -> *

Methods

(.-.) :: Num a => Vector d a -> Vector d a -> Diff (Vector d) a

(.+^) :: Num a => Vector d a -> Diff (Vector d) a -> Vector d a

(.-^) :: Num a => Vector d a -> Diff (Vector d) a -> Vector d a

ImplicitArity d => Affine (VectorFamily d)

Defined in Data.Geometry.Vector.VectorFamilyPeano

Associated Types

type Diff (VectorFamily d) :: * -> *

Methods

(.-.) :: Num a => VectorFamily d a -> VectorFamily d a -> Diff (VectorFamily d) a

(.+^) :: Num a => VectorFamily d a -> Diff (VectorFamily d) a -> VectorFamily d a

(.-^) :: Num a => VectorFamily d a -> Diff (VectorFamily d) a -> VectorFamily d a

Arity d => Affine (Vector d)

Defined in Data.Geometry.Vector.VectorFamily

Associated Types

type Diff (Vector d) :: * -> *

Methods

(.-.) :: Num a => Vector d a -> Vector d a -> Diff (Vector d) a

(.+^) :: Num a => Vector d a -> Diff (Vector d) a -> Vector d a

(.-^) :: Num a => Vector d a -> Diff (Vector d) a -> Vector d a

Arity d => Affine (Point d)

Defined in Data.Geometry.Point

Associated Types

type Diff (Point d) :: * -> *

Methods

(.-.) :: Num a => Point d a -> Point d a -> Diff (Point d) a

(.+^) :: Num a => Point d a -> Diff (Point d) a -> Point d a

(.-^) :: Num a => Point d a -> Diff (Point d) a -> Point d a

Dim n => Affine (V n)

Defined in Linear.Affine

Associated Types

type Diff (V n) :: * -> *

Methods

(.-.) :: Num a => V n a -> V n a -> Diff (V n) a

(.+^) :: Num a => V n a -> Diff (V n) a -> V n a

(.-^) :: Num a => V n a -> Diff (V n) a -> V n a

Affine ((->) b :: * -> *)

Defined in Linear.Affine

Associated Types

type Diff ((->) b) :: * -> *

Methods

(.-.) :: Num a => (b -> a) -> (b -> a) -> Diff ((->) b) a

(.+^) :: Num a => (b -> a) -> Diff ((->) b) a -> b -> a

(.-^) :: Num a => (b -> a) -> Diff ((->) b) a -> b -> a

qdA :: (Affine p, Foldable (Diff p), Num a) => p a -> p a -> a

Compute the quadrance of the difference (the square of the distance)

distanceA :: (Floating a, Foldable (Diff p), Affine p) => p a -> p a -> a

Distance between two points in an affine space

dot :: (Metric f, Num a) => f a -> f a -> a

Compute the inner product of two vectors or (equivalently) convert a vector f a into a covector f a -> a.

>>> V2 1 2 `dot` V2 3 4
11

norm :: (Metric f, Floating a) => f a -> a

Compute the norm of a vector in a metric space

signorm :: (Metric f, Floating a) => f a -> f a

Convert a non-zero vector to unit vector.

isScalarMultipleOf :: (Eq r, Fractional r, Arity d) => Vector d r -> Vector d r -> Bool

Test if v is a scalar multiple of u.

>>> Vector2 1 1 `isScalarMultipleOf` Vector2 10 10
True
>>> Vector2 1 1 `isScalarMultipleOf` Vector2 10 1
False
>>> Vector2 1 1 `isScalarMultipleOf` Vector2 11.1 11.1
True
>>> Vector2 1 1 `isScalarMultipleOf` Vector2 11.1 11.2
False
>>> Vector2 2 1 `isScalarMultipleOf` Vector2 11.1 11.2
False
>>> Vector2 2 1 `isScalarMultipleOf` Vector2 4 2
True
>>> Vector2 2 1 `isScalarMultipleOf` Vector2 4 0
False

scalarMultiple :: (Eq r, Fractional r, Arity d) => Vector d r -> Vector d r -> Maybe r

Get the scalar labmda s.t. v = lambda * u (if it exists)

replicate :: Vector v a => a -> v a

Replicate value n times.

Examples:

>>> import Data.Vector.Fixed.Boxed (Vec2)
>>> replicate 1 :: Vec2 Int
fromList [1,1]

>>> replicate 2 :: (Double,Double,Double)
(2.0,2.0,2.0)

>>> import Data.Vector.Fixed.Boxed (Vec4)
>>> replicate "foo" :: Vec4 String
fromList ["foo","foo","foo","foo"]

imap :: (Vector v a, Vector v b) => (Int -> a -> b) -> v a -> v b

Apply function to every element of the vector and its index.