Diagrams.TwoD.Arrow
arrowV
arrowV'
arrowAt
arrowAt'
arrowBetween
arrowBetween'
connect
connect'
connectPerim
connectPerim'
connectOutside
connectOutside'
arrow
arrow'
arrowFromLocatedTrail
arrowFromLocatedTrail'
data ArrowOpts n
arrowHead
arrowTail
arrowShaft
headGap
tailGap
gaps
gap
headTexture
headStyle
headLength
tailTexture
tailStyle
tailLength
lengths
shaftTexture
shaftStyle
straightShaft