minor-label-frequency-offset

Arguments: chart-axis

Returns the value of the minor-label-frequency-offset property of a chart-axis. The value may be set at creation time by passing the minor-label-frequency-offset initarg, or any time later by calling (setf minor-label-frequency-offset).

The number of minor tic positions, starting at each major tic position, before the first minor tic label is drawn after that major tic position on a chart-axis in a chart-widget. The value should be a non-negative integer. The default value is 0, to potentially draw the first minor tic label after each major tic position at the major tic position itself. (The word "potentially" in the previous sentence alludes to the fact that a minor label is not drawn at major tic position if a major label is drawn there and the overlap-major-and-minor-labels property is true.)

This property is meaningful only when the minor-label-frequency is greater than one. If that property is 4, for example, and minor-label-frequency-offset is 1, then minor tic labels would be drawn at minor tic positions 1, 5, 9 and so on after each major tic position, up to the next major tic position. This property would typically be left at zero, with the minor-label-frequency property determining how densely packed minor tic labels are after each major tic position.

This property is used only when the draw-minor-labels property of the chart-axis is true.

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

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Created 2019.8.20.