The Reverse or Compound command creates a reverse or compound curve from the endpoint of an existing curve.
A compound curve is a curve consisting of two or more arcs of different radii curving in the same direction and having a common tangent or transition curve at their point of junction. A reverse curve is an S-shaped curve.
To create a reverse or compound curve
- Click Home tab
Draw panelCurves drop-downCreate Reverse Or Compound Curve
.At the Command prompt, enter ReverseOrCompound. - Select the arc object nearest the end to which the new compound or reverse curve is to be attached.
- Specify whether to create a Reverse or Compound curve.
- Do one of the following:
- Enter the radius at the prompt.
- Enter A and enter a degree of curve.
- Enter C and enter a degree of chord.
After you enter the radius or degree of curve, the following prompt is displayed:
Select entry [Tangent/Chord/Delta/Length/External/Mid-ordinate] <Length>:
- Do one of the following:
- Enter Tangent, or T, and then enter the tangent length, or pick the distance in the drawing.
- Enter Chord, or C , and then enter the chord length, or pick the distance in the drawing.
- Enter Length, or L, and then enter the curve length, or pick the distance in the drawing.
- Enter Delta, or D, and then enter the delta angle, or pick the distance in the drawing.
- Enter External, or E, and then enter the external distance, or pick the distance in the drawing.
- Enter Mid-ordinate, or M, and then enter the mid-ordinate distance, or pick the distance in the drawing.