Edit an alignment by modifying the geometry or parameter values.
You can grip edit an alignment, modify geometric values, or add constraint-based line, curve, and spiral entities.
You use the Alignment Layout Tools toolbar, Alignment Layout Parameters dialog box, and Alignment Entities vista to edit an alignment. These dialog boxes remain open if you either grip edit or deselect the alignment, or enter another command.
If you select an alignment for editing and then select a second alignment, the second alignment becomes the active alignment. The most recently selected alignment has the focus of the Alignment Layout Tools toolbar and the Alignment Entities vista. The last object selected becomes the current object and has focus of the alignment editing tools.
See Also
Topics in this section
- Selecting Alignment Entities
Select an entire alignment, a single sub-entity, or a range of sub-entities.
- Converting an AutoCAD Line or Arc to an Alignment Sub-Entity
Create a fixed two-point line or three-point curve alignment entity from an AutoCAD line or arc.
- Editing Alignment Points of Intersection
Edit an alignment geometry by working with the points of intersection (PI).
- Editing Alignment Entity Layout Parameters
Use the Alignment Entities vista and Alignment Layout Parameters dialog box to display and edit parameters of alignment entities that are part of the solved alignment geometry.
- Editing Alignment Constraints
You can change the tangency and parameter constraints of alignment lines, curves, and spirals.
- Editing Alignments Using Grips
Use grips to change the vertical curves and tangents in an alignment graphically.
- Editing Best Fit Alignment Entities
Modify the regression data for alignment entities that were created by best fit.
- Editing Offset Alignments and Widenings
You can edit the parameters of an offset alignment or widening, split it into sections, and attach additional widenings.
- Applying Design Criteria to an Existing Alignment
Use the Alignment Properties dialog box to apply design criteria to an existing alignment.
- Checking for Tangency Between Alignment Entities
Use the Alignment Properties dialog box to make sure that line, curve, or spiral elements are tangent and connected to adjacent elements.
- Viewing and Correcting Alignment Design Violations
Use the warning symbols to verify whether the alignment design meets the specified criteria and design checks, or if the alignment entities are tangent to each other.