To draw a line parallel to a curve

1. Click the Parallel Line icon, or choose Lines > Parallel Line from the Keypoint Curve Toolbox.
   
2. Click the curve to which the new line will be parallel.
   • Guidelines are added for the curve, allowing you to line up the start and/or end points of the new line.
   • If you click a curved line, the new line is parallel to the tangent where you click.
3. Click the start point of the parallel line, or type a 3D coordinate to place the point exactly.

   As you drag the start point, the Parallel Line tool displays the distance between the lines in current linear units.

   
4. Click the end point of the parallel line, or type a 3D coordinate to place the point exactly.

   As you drag the end point, the Parallel Line tool displays the length of the line in current linear units.

Line Parallel Options

Degree

Specifies the degree of the curve. The values range from 1 to 7. The default is 1.