Ternary diagram arrows.

The ternary diagram arrows are those which are oriented along the diagonals of a rectangle of sides 1,2. Taking some liberty with trigonometry and geography, we shall name them after the ternary directions of the compass-card. Thus, here are the available directions and the corresponding abbreviations:

ll north-north-east ( +nne+ )&east-north-east ( +ene+ )
east-south-east ( +ese+ )&south-south-east ( +sse+ )
south-south-west ( +ssw+ )&west-south-west ( +wsw+ )
west-north-west ( +wnw+ )&north-north-west ( +nnw+ )

The only type of ternary arrows provided by the Diagram Macros are the plain arrows. Again you will obtain the command for a ternary arrow by preceeding the abbreviation +ar+ with the prefix indicating the direction of the arrow. Here are thus the eight available ternary arrows:
&bull#bullet; &bull#bullet; &bull#bullet; &bull#bullet; &bull#bullet; &bull#bullet; &bull#bullet; &bull#bullet; &bull#bullet; &bull#bullet; &bull#bullet; &bull#bullet; &bull#bullet; &bull#bullet; &bull#bullet; &bull#bullet; &bull#bullet; &bull#bullet; &bull#bullet; &bull#bullet; &bull#bullet; &bull#bullet; &bull#bullet; &bull#bullet; &bull#bullet; 2300

A ternary diagram arrow has a standard horizontal extent equal to 66pt or 132pt according to the case.