draw-lines

Arguments: object

draw-lines is a property of the outline and dropping-outline classes. It is also a property of line-drawing-views, which are associated with the chart-or-plot widgets.

For outline widgets

Returns the value of the draw-lines property of object. This property determines whether or not an outline control will have long vertical and short horizontal lines graphically depicting the hierarchy of the outline.

For chart-or-plot widgets

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

A boolean value indicating whether graph lines are drawn for a line-drawing-view in a chart-or-plot. The default value is t.

Either this property or draw-icons (or both) should be true, because otherwise nothing would be drawn for the data values.

For a chart-widget, this property and other line-drawing-view properties are used only when the chart-view property of the chart-widget is :line to display the line-graph-view.

See also line-colors, line-widths, line-dashings, and span-missing-items.

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Created 2019.8.20.