Technical data

Chapter 6 Creating Cadastral Information

212

Defining an Object as a Road Alignment

By defining figure geometry as an alignment, all the individual

geometric components (lines, arcs, and spirals) become linked as a

single object, and the alignment data is saved to the database in the

project folder.

By storing this data in an external database, you can access the

alignments from all drawings in the project. After you define an

alignment, it is not necessary to draft the alignment in your

drawing. All commands that refer to the alignment geometry

reference the database.

When you define an alignment, point data is not added to the point

database. The alignment data is added only to the alignment database.

You can place points along the alignment using the Create Points -

Alignments commands on the Points menu.

To define an alignment

Steps

Use

to look up

Draw the alignment geometry.

If you drew your alignment geometry using lines,

curves, and spirals, then select Define From

Objects from the Alignments menu to define the

alignment.

If you drew your alignment using a polyline,

then select Define From Polyline from the

Alignments menu.

When you define the alignment, you are

prompted for essential information such as the

alignment name, description, starting station,

and objects that comprise the alignment.

Define an Alignment from

Objects

Define an Alignment from a

Polyline