major-grid-line-width

Arguments: chart-axis

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

The line-width that is used to draw major grid lines for a chart-axis across the body of its chart-widget. The value should be a non-negative integer, and is measured in pixels. The default value is 1.

Major grid lines are drawn only when this property is positive and the draw-major-grid-lines property of the chart-axis is true.

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

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Created 2015.5.21.