Add fixed vertical curves to build constraint-based profile geometry.
Fixed entities are defined by specifying parameters, such as points or minimum radius. The parameters are fixed in their position and must be edited directly. If an adjacent entity is edited, the geometry of the fixed entity is not affected. Except for its length, the geometry of a fixed entity is not dependent on adjacent entities.
Topics in this section
- Adding a Fixed Vertical Curve with Three Points
Add a fixed vertical curve by specifying three pass-through points.
- Adding a Fixed Vertical Curve with Two Points and a Parameter
Specify two pass-through points and a K value or minimum radius.
- Adding a Fixed Vertical Curve from an Entity with a Pass-Through Point
Add a fixed vertical curve by specifying an attachment entity and a pass-through point.
- Adding a Fixed Vertical Curve with Two Points and a Start Point Grade
Add a fixed vertical curve by specifying two pass-through points and a grade at the start point.
- Adding a Fixed Vertical Curve with Two Points and an End Point Grade
Add a fixed vertical curve by specifying two pass-through points and a grade at the end point.
- Adding a Fixed Vertical Curve by Best Fit
Add a fixed, three-point curve entity by best fit to a profile. You can define the best fit entity using a series of AutoCAD Civil 3D points, existing entities, or clicks on screen.