| Allegro CL version 8.2 Unrevised from 8.1 to 8.2. 8.1 version |
Arguments: chart-axis
Returns the value of the draw-major-grid-lines property of
a chart-axis
. The value
may be set at creation time by passing
the :draw-major-grid-lines
initarg, or any
time later by calling (setf draw-major-grid-lines).
A value indicating whether (and how) grid lines are drawn for the
major tic positions of a chart-axis
in a chart-widget
.
When drawn, a grid line extends across the body of the chart, perpendicular to the axis with which it is associated.
Here are the possible values:
nil
- Major grid lines are not drawn. This
is the default value.
t
- Major grid lines are drawn, and are drawn
at the major tic positions.
:after
- Each major grid line is drawn midway
between its major tic position and the next major tic position. This
may be especially useful for delimiting groups of non-stacked bars by
drawing lines between the groups, for example, rather than drawing a
line through the middle of each group of bars. This choice is
probably not aesthetic when draw-minor-grid-lines is true.
:before
- Like :after
, except
that each grid line is drawn between its official position and that of
the previous grid line.
:between
- Like :after
and
:before
except that no grid line is drawn before
the first major tic position or after the last one.
See also major-grid-line-color, major-grid-line-dashing, major-grid-line-width, and draw-minor-grid-lines.
See chart-widget
and also cg-chart-widget.htm.
Copyright (c) 1998-2016, Franz Inc. Oakland, CA., USA. All rights reserved.
This page was not revised from the 8.1 page.
Created 2010.1.21.
| Allegro CL version 8.2 Unrevised from 8.1 to 8.2. 8.1 version |