You can move, rotate, or tilt an object so that it aligns with another object.

In the following example, two pairs of points are used to align the piping in 2D using the ALIGN command. Endpoint object snaps align the pipes precisely.

In 3D, use the 3DALIGN command to specify up to three points to define the source plane followed by up to three points to define the destination plane.

• The first source point on an object, called the base point, is always moved to the first destination point.
• Specifying a second point for either the source or the destination results in the selected objects being rotated.
• A third point for either the source or the destination results in further rotation of the selected objects.

Procedure

To align two objects in 2D

1. Click Modify menu 3D OperationsAlign. At the Command prompt, enter align.
2. Select the objects that you want to align.
3. Specify a source point and then the corresponding destination point. To rotate the object, specify a second source point followed by a second destination point.
4. Press Enter to end the command.

   The selected objects are moved from the source point to the destination point, and second and third points, if you specify them, rotate, and tilt the selected objects.

To align two objects in 3D

1. Click Home tab Modify panel 3D Align.
2. Select the objects that you want to align.
3. Specify either one, two, or three source points and then the corresponding first, second, or third destination points. The first point is called the base point.

   The selected objects are moved from the source point to the destination point, and second and third points, if you specify them, rotate, and tilt the selected objects.

Quick Reference

Commands

3DALIGN

Aligns objects with other objects in 2D and 3D.

ALIGN

Aligns objects with other objects in 2D and 3D.

System Variables

UCSDETECT

Controls whether dynamic UCS acquisition is active or not.