FRP.Yampa.AffineSpace

Affine space type relation.

Documentation

class (Floating a, VectorSpace v a) => AffineSpace p v a | p -> v, v -> a where

Affine Space type relation.

An affine space is a set (type) p, and an associated vector space v over a field a.

Minimal complete definition

origin, (.+^), (.-.)

Methods

origin :: p

Origin of the affine space.

(.+^) :: p -> v -> p infix 6

Addition of affine point and vector.

(.-^) :: p -> v -> p infix 6

Subtraction of affine point and vector.

(.-.) :: p -> p -> v infix 6

Subtraction of two points in the affine space, giving a vector.

distance :: p -> p -> a

Distance between two points in the affine space, same as the norm of the vector they form (see '(.-.)'.

Instances

RealFloat a => AffineSpace (Point3 a) (Vector3 a) a

Methods

origin :: Point3 a

(.+^) :: Point3 a -> Vector3 a -> Point3 a

(.-^) :: Point3 a -> Vector3 a -> Point3 a

(.-.) :: Point3 a -> Point3 a -> Vector3 a

distance :: Point3 a -> Point3 a -> a

RealFloat a => AffineSpace (Point2 a) (Vector2 a) a

Methods

origin :: Point2 a

(.+^) :: Point2 a -> Vector2 a -> Point2 a

(.-^) :: Point2 a -> Vector2 a -> Point2 a

(.-.) :: Point2 a -> Point2 a -> Vector2 a

distance :: Point2 a -> Point2 a -> a