| Maintainer | [email protected] |
|---|---|
| Safe Haskell | None |
Diagrams.Core.Points
Contents
Description
A type for points (as distinct from vectors).
Points
newtype Point v
Point is a newtype wrapper around vectors used to represent
points, so we don't get them mixed up. The distinction between
vectors and points is important: translations affect points, but
leave vectors unchanged. Points are instances of the
AffineSpace class from Data.AffineSpace.
Constructors
| P v |
Instances
| Functor Point | |
| Typeable1 Point | |
| Eq v => Eq (Point v) | |
| Data v => Data (Point v) | |
| Ord v => Ord (Point v) | |
| Read v => Read (Point v) | |
| Show v => Show (Point v) | |
| AdditiveGroup v => AffineSpace (Point v) | |
| VectorSpace v => HasOrigin (Point v) | |
| HasLinearMap v => Transformable (Point v) | |
| (Ord (Scalar v), VectorSpace v) => Traced (Point v) | The trace of a single point is the empty trace, i.e. the one which returns no intersection points for every query. Arguably it should return a single finite distance for vectors aimed directly at the given point, but due to floating-point inaccuracy this is problematic. Note that the envelope for a single point is not the empty envelope (see Diagrams.Core.Envelope). |
| (OrderedField (Scalar v), InnerSpace v) => Enveloped (Point v) |
origin :: AdditiveGroup v => Point v
The origin of the vector space v.
(*.) :: VectorSpace v => Scalar v -> Point v -> Point v
Scale a point by a scalar.