Commands and functions > Drawing aids > Auxiliary line, angle bisecting
  
Auxiliary line, angle bisecting
Ribbon:
Tab ATHENA > Group Drawing aids > Auxiliary line, angle bisecting
Menu:
ATHENA > Drawing aids > Auxiliary line, angle bisecting
Toolbar:
ATH Drawing aids
Command input:
ath_aux_halve
Generates an auxiliary line which bisects the angle between two lines which are selected.
Input request 
Select arc or line or [Specify vertex/?] <Specify vertex>:
Select a line object or an arc. You can select a polyline, line, Xline, ray or an edge of a 3D solid. The objects can also be constituent parts of a block.
If you select an arc, the auxiliary line is produced directly bisecting the lines from the center of the arc to the end points of the arc.
With the Specify vertex option you can produce an auxiliary line by specifying three points.
Select second line or [?]:
Select the second line.
With the option ? you call the help.
Specify vertex option
Specify vertex or [?]:
Specify a vertex. The vertex defines the first passing point for the auxiliary line.
Specify first angle point or [?]:
Specify the first point of the angle.
Specify second angle point or [?]:
Specify the second point of the angle.
The middle of the two angle points defines the second passing point for the auxiliary line.
Note 
Auxiliary lines are infinite lines (object type XLINE). You will find further information about Xlines in your AutoCAD documentation.
For auxiliary lines ATHENA uses its own system layer (as standard ATH AUX). Use the Dialog box System layer to adapt the layer properties to your own requirements.
Associated commands
Delete auxiliary lines