Arrowheads

Arrowheads[spec]
is a graphics directive specifying that arrows that follow should have arrowheads with sizes, positions, and forms specified by spec.

Details and OptionsDetails and Options

  • With the default Arrowheads[Automatic], a single arrowhead is placed at the head of each arrow.
  • Arrowheads[s] specifies that arrowheads should have a length that is a fraction s of the total width of the graphic. The default is 0.04. »
  • The symbolic values Tiny, Small, Medium, and Large can be used for s. With these values, the size of the arrowhead is independent of the total width of the graphic. »
  • Arrowheads[{spec1, spec2, ...}] specifies that arrows should include several arrowhead elements.
  • Each arrowhead element can be specified as follows:
  • sdefault arrowhead with scaled size s
    {Automatic,pos}default arrowhead at position pos
    {s,pos}scaled default arrowhead at position pos
    {s,pos,g}arrowhead drawn as graphic g
    {s,pos,{g,}}shaft foreshortened by
  • The position pos runs from 0 to 1 from the tail to the head of the arrow.
  • Arrowheads[{s0, s1, ..., sn}] specifies arrowheads with scaled sizes at positions . »
  • Arrowheads[{-s, s}] gives double-headed arrows. »
  • The graphic g is placed so that the origin {0,0} of its coordinates lies at position pos along each arrow.
  • The graphic g is oriented so that its positive axis is aligned with the direction of the shaft at position pos.
  • The graphic g is scaled so that one unit of its coordinates corresponds to a fraction s of the width of the whole graphic in which the arrow is being drawn.
  • The graphic g is always assumed to have AspectRatio->Automatic.
  • With the specification , the shaft of the arrow is foreshortened by in the coordinate system of g. This can prevent a thick shaft from "poking through" arrowheads at the head or tail of the arrow. »
  • In 3D, the default option setting Appearance->"Flat" makes arrowheads always be rendered in the plane of the screen. Appearance->"Projected" makes them be rendered in 3D, and projected into the plane of the screen.
New in 6 | Last modified in 7
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