PGPLOT Module: PGTICK -- draw a single tick mark on an axis


SUBROUTINE PGTICK (X1, Y1, X2, Y2, V, TIKL, TIKR, DISP,
: ORIENT, STR)
REAL X1, Y1, X2, Y2, V, TIKL, TIKR, DISP, ORIENT
CHARACTER*(*) STR

Draw and label single tick mark on a graph axis. The tick mark is
a short line perpendicular to the direction of the axis (which is not
drawn by this routine). The optional text label is drawn with its
baseline parallel to the axis and reading in the same direction as
the axis (from point 1 to point 2). Current line and text attributes
are used.


Arguments
X1, Y1 (input) : world coordinates of one endpoint of the axis.
X2, Y2 (input) : world coordinates of the other endpoint of the axis.
V (input) : draw the tick mark at fraction V (0<=V<=1) along
the line from (X1,Y1) to (X2,Y2).
TIKL (input) : length of tick mark drawn to left of axis
(as seen looking from first endpoint to second), in
units of the character height.
TIKR (input) : length of major tick marks drawn to right of axis,
in units of the character height.
DISP (input) : displacement of label text to
right of axis, in units of the character height.
ORIENT (input) : orientation of label text, in degrees; angle between
baseline of text and direction of axis (0-360).
STR (input) : text of label (may be blank).