2.1 - Alignment Layout
Task Description:
This task will go through creating, editing, and adding labels to Civil 3D alignments. To lay out an alignment using AutoCAD drafting tools you must understand the difference between fixed, floating, and free entities:

Fixed entities are defined by specific points, with no topological relation to adjacent entities. In editing operations, fixed entities remain connected to adjacent entities, but can be moved out of tangency. This is the type of entity you get when you convert a polyline to an alignment.

Floating entities are attached to an existing entity and remain tangent to it. Their endpoint, however, is defined by other criteria such as radius, length, a through point, or finding the best-fit path through a number of specified points.

Free entities are always created between two existing entities, and always maintain tangency to them. Free entities are most flexible in editing operations.

For more information watch the video below:
  • Alignment Layout (WMV)