Diagrams.Align

General tools for alignment. Any boundable object with a local origin can be aligned; this includes diagrams, of course, but it also includes paths.

Generic alignment functions

align :: (HasOrigin a, Boundable a) => V a -> a -> a

align v aligns a boundable object along the edge in the direction of v. That is, it moves the local origin in the direction of v until it is on the boundary. (Note that if the local origin is outside the boundary to begin, it may have to move "backwards".)

alignBy :: (HasOrigin a, Boundable a, Num (Scalar (V a))) => V a -> Scalar (V a) -> a -> a

align v d a moves the origin of a along the vector v. If d = 1, the origin is moved to the boundary in the direction of v; if d = -1, it moves to the boundary in the direction of the negation of v. Other values of d interpolate linearly (so for example, d = 0 centers the origin along the direction of v).

center :: (HasOrigin a, Boundable a) => V a -> a -> a

center v centers a boundable object along the direction of v.