Creates a new line object that is perpendicular to a segment of an object.
Supported object types: Line, Polyline, Region
New Object: Line
1.Select the Perpendicular Line function. (The shape of the cursor changes to a crosshair cursor.)
2.Digitize a line that is approximately at a 90 degree angle to the desired object. The object must be within the snap tolerance.
Set the first node at the position from where the line is supposed to start. Set the second point on the line segment.
