AXIS2
Anchor Points: The symbol requires N anchor points, where N is between 3 and 50. Point 1 defines the tip of the arrowhead. Point N-1 defines the rear of the symbol. Point N defines the back of the arrowhead. Anchor points are numbered sequentially beginning with point number one (1), in increments of one (1).
Size/Shape: Points 1 through N-1 and 2 determine the symbol’s center line and Point N determines the width.
Orientation: The arrowhead typically points toward enemy forces.