Construction Aid Beam > Angle Bisector (Construct Menu)

This command draws a Construction Aid beam which runs along the bisector of the angle between two lines of any type.

Any line in an existing object can be identified as a reference line. This can also be a side of a rectangle or a leg of a circle segment.

The position at which the line was identified (the "ID Point") is important for the rest of the procedure. Together with the position at which the second line is identified,it determines which of the two possible angle bisectors should be used (see below).

Any line in an existing object can be identified as the second reference line. This can also be a side of a rectangle or a leg of a circle segment.

The position at which the line was identified (the "ID Point") is important for the rest of the procedure. Together with the position at which the first line is identified, it determines which of the two possible angle bisectors should be used (see graphic).

After identification of the second line, a straight line which runs through the ID point determining the angle bisectors appears. This line is referred to as the "Reference Straight Line".

The second point of the Construction Aid beam can be entered by clicking the mouse anywhere in the drawing. A perpendicular is dropped from this position to the reference straight line to determine the direction of the new Construction Aid beam.