Dashing[{r1, r2, ...}] is a two-dimensional graphics directive which specifies that lines which follow are to be drawn dashed, with successive segments of lengths r1, r2, ... (repeated cyclically). The ri are given as a fraction of the total width of the graph.
Dashing can be used in both two- and three-dimensional graphics, as well as in Style specifications.
Dashing[{}] specifies that lines should be solid. »
The following symbolic forms for r can be used: Tiny, Small, Medium and Large. These specify absolute segment lengths independent of the total width of the graphic. »
If a segment has a length ri specified as 0, it is drawn as a dot whose diameter is the thickness of the line. »
EXAMPLES
Basic Examples 
Scope 
