PGPLOT Module: PGQAH -- inquire arrow-head style


SUBROUTINE PGQAH (FS, ANGLE, BARB)
INTEGER FS
REAL ANGLE, BARB

Query the style to be used for arrowheads drawn with routine PGARRO.


Arguments
FS (output) : FS = 1 => filled; FS = 2 => outline.
ANGLE (output) : the acute angle of the arrow point, in degrees.
BARB (output) : the fraction of the triangular arrow-head that
is cut away from the back.