Add a fixed vertical curve by specifying three pass-through points.
The illustration shows a fixed curve from start point (1) through specified points (2 and 3):
Specify two pass-through points and a K value or minimum radius.
The illustration shows a fixed curve defined by a start point (1), end point (2), and a minimum radius (3):
Add a fixed vertical curve by specifying an attachment entity and a pass-through point.
The illustration shows a fixed curve from an attached entity (1) and a pass-through point (2):
The nearest end point of the entity is the start point of the curve. The grade of the start point is the start grade for the curve.
Add a fixed vertical curve by specifying two pass-through points and a grade at the start point.
The illustration shows a fixed curve from a start point (1) to an end point (2) and the grade at the start point (3):
Add a fixed vertical curve by specifying two pass-through points and a grade at the end point.
The following illustration shows a fixed curve from a start point (1) to an end point (2) and the grade at the end point (3):
Add a fixed parabolic vertical curve by specifying a high or low point, whether the curve is a crest curve or a sag curve, a K value or a minimum radius, and a curve length.
Add a fixed circular vertical curve by specifying a high or low point, whether the curve is a crest curve or a sag curve, a minimum radius, and a curve length.
Add a fixed, three-point curve entity by best fit to a profile. You can define the best fit entity using a series of Autodesk Civil 3D points, existing entities, or clicks on screen.
The illustration shows a fixed vertical curve created by best fit. The Xs indicate the data points used to create the entity.
As you highlight a row in the Regression Data vista, the corresponding regression point in the drawing window is highlighted in red.