] is a graphics directive which specifies that lines which follow are to be drawn dashed, with successive segments having absolute lengths , , ... (repeated cyclically).
The absolute lengths are measured in units of printer's points, approximately equal to of an inch.
}] specifies that lines should be solid.
AbsoluteDashing can be used in both two- and three-dimensional graphics.
See the Mathematica book: Section 2.9.3.
See also: AbsoluteThickness, Offset, Thickness, GrayLevel, Hue, RGBColor.
This draws two dashed lines; one with the spaces twice as long as the dashes and the other with the reverse.
Evaluate the cell to see the graphic.