| Allegro CL version 8.2 Unrevised from 8.1 to 8.2. 8.1 version |
Arguments: bar-chart-view
Returns the value of the base-value property of
a bar-chart-view
. The value
may be set at creation time by passing
the base-value
initarg, or any
time later by calling (setf base-value).
The default value for the start of each bar in bar-chart-view
in a chart-widget
. The value should be a real
number. The default value is zero.
Each bar in a bar-chart-view
starts at one value on the
value-axis and ends at another
value. The ending value of a bar is always the main data value for a
chart item / chart object pairing that a single bar represents. A
"main data value" is the one that is passed as
the value argument to set-chart-value or returned from a
chart-value-returner function
when the value-type argument
is :value
. The starting value of a bar will be the
from-value if one was supplied for the bar, and
otherwise it will default to the base-value of the bar-chart-view
. The base-value defaults to zero, so every bar by
default will start at zero on the value-axis and end at the main value for the
bar.
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 |