Create an alignment with the Alignment Layout Tools.
Use the layout command to create an alignment. Specify a unique name, site (if desired), style and label set, and criteria-based design options. Then, use the Alignment Layout Tools to draw the alignment.
This toolbar provides two types of alignment creation tools:
- Freehand drawing tools for lines, curves, and spirals.
- Constraint-based tools that define individual entities by parameters such as length and radius.
You can use either of the following commands to create a quick layout of the alignment. The lines and curves you create are fixed entities that can be edited without losing tangency.
Tangent-Tangent No Curves
Use this command to create a quick layout of an alignment. Specify tangent points of intersection (PI). Optionally add curves later.
Tangent-Tangent With Curves
Use this command to lay out an alignment, automatically creating curves at points of intersection (PI). Curve parameters are the current values in the Curve and Spiral Settings dialog box.
Tutorial Exercise: Creating an Alignment with Spirals and Curves