dirType
Edge arrow direction type
For an edge T -> H;
| Direction | Image |
|---|---|
"forward" |
 |
"back" |
 |
"both" |
 |
"none" |
 |
That is, a glyph is drawn at the head end of an edge if and only
if dirType is "forward" or "both";
a glyph is drawn at the tail end of an edge if and only
if dirType is "back" or "both";
For undirected edges T -- H;, one of the nodes, usually
the righthand one, is treated as the head for the purpose of
interpreting "forward" and "back".
Attributes
dirType is a valid type for: