| Allegro CL version 8.2 Unrevised from 8.1 to 8.2. 8.1 version |
Arguments: chart-legend
Returns the value of the on-print-chart-object property of
a chart-legend
. The value
may be set at creation time by passing
the on-print-chart-object
initarg, or any
time later by calling (setf on-print-chart-object).
A function that returns a label for a chart object in
the chart-legend
of a
chart-or-plot
.
The value of this property should be a function or a function name, or
else nil
to default to princ-to-string. The function should take a
chart object ID as a single argument and return a string to display
for that object. The default value is princ-to-string.
A chart object ID will be the :id
value for the
object in the chart-objects
property of the chart-or-plot
, if such a value has been supplied,
and otherwise will default to the zero-based integer index of the
object.
This property is used only when the draw-legend property of the chart-or-plot is true.
See also legend-font, layout-orientation and on-print-major-label.
An alternative to writing an on-print-chart-object function is to supply an
explicit :label
value for each object in
the chart-objects property of
the chart-or-plot
.
See chart-widget
, plot-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 |