Graphics.Gloss.Data.Vector

Geometric functions concerning vectors.

Documentation

type Vector = Point

A vector can be treated as a point, and vis-versa.

magV :: Vector -> Float

The magnitude of a vector.

argV :: Vector -> Float

The angle of this vector, relative to the +ve x-axis.

dotV :: Vector -> Vector -> Float

The dot product of two vectors.

detV :: Vector -> Vector -> Float

The determinant of two vectors.

mulSV :: Float -> Vector -> Vector

Multiply a vector by a scalar.

rotateV :: Float -> Vector -> Vector

Rotate a vector by an angle (in radians). +ve angle is counter-clockwise.

angleVV :: Vector -> Vector -> Float

Compute the inner angle (in radians) between two vectors.

normaliseV :: Vector -> Vector

Normalise a vector, so it has a magnitude of 1.

unitVectorAtAngle :: Float -> Vector

Produce a unit vector at a given angle relative to the +ve x-axis. The provided angle is in radians.