line-graph-view

Arguments: chart-widget

Returns the value of the line-graph-view property of a chart-widget. The value may be set at creation time by passing the :line-graph-view initarg, or any time later by calling (setf line-graph-view).

line-graph-view is the chart-view that draws a chart-widget's data as a line graph. The value is an instance of the line-graph-view class, and holds properties that are used whenever the chart-view property of the chart-widget is :line.

The value of this property is always a line-graph-view instance, even when this view is never used. If you do not pass a line-graph-view instance as the value of the :line-graph-view initarg when creating a chart-widget, then a default instance is created automatically.

See chart-widget and also cg-chart-widget.htm.

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Created 2010.1.21.