# 3DALIGN Command
[GstarCAD 2018](Help%20System/GSTARCAD/2018/Index.md) → [Commands](Help%20System/GSTARCAD/2018/Commands/(Commands).md) → [3D](Help%20System/GSTARCAD/2018/Commands/3D/(3D).md)
The 3DALIGN command is used to align selected object to other object in 2D and 3D space.
## Command Access:
> **Ribbon:** 3D\> 3D Operations \> 3D Align
> **Command:** 3DALIGN
## Command Prompts:
> Select object:
> Specify source plane and direction...
> Specify base point or \[Copy\]:
> Specify second point or \[Continue\] \<C\>:
> Specify third point or \[Continue\] \<C\>:
> Specify destination plane and orientation...
> Specify first destination point:
> Specify second destination point or\[exit\] \<X\>:
> Specify third destination point or\[exit\] \<X\>:
## Function Description:
Users could align selected object by specifying one point, two points or three points as source points and specifying one point, two points or three points as destination points.

**Relative Glossary:**
**Select object:**
It will move and rotate the selected object to make the source object in 3D aligned to the base point, X axis and Y axis of destination. The 3DALIGN command could be used in dynamic UCS (DUCS), so the selected object could be dynamically dragged and aligned to face of destination solid.
**Base point:**
The base point of source object will be moved to the base point of destination object.
**Second point:**
The second point specifies the new X axis direction for a plane; this plane is parallel to the current UCS. If pressing ENTER rather than specifying the second point, it assumes that the X axis and the Y axis are parallel to current X axis and Y axis of current UCS.
**Third point:**
The third point will completely specify the X axis and Y axis direction for source object, those two direction will be aligned to the destination plane.
**First destination point:**
The first destination point defines the destination of source object.
**Second destination point:**
The second destination point specifies the new X axis direction for a plane; this plane is parallel to the current UCS. If pressing ENTER rather than specifying the second point, it assumes that the X axis and the Y axis are parallel to current X axis and Y axis of current UCS.
**Third destination point:**
The third point will completely specify the X axis and Y axis direction for destination object.
## Other versions with matching text
[GstarCAD 2016](../../../2016/Commands/3D/3DALIGN%20Command.md) · [GstarCAD 2017](../../../2017/Commands/3D/3DALIGN%20Command.md) · [GstarCAD 2019](Help%20System/GSTARCAD/2019/Commands/3D/3DALIGN%20Command.md) · [GstarCAD 2020](Help%20System/GSTARCAD/2020/Commands/3D/3DALIGN%20Command.md) · [GstarCAD 2021](Help%20System/GSTARCAD/2021/Commands/3D/3DALIGN%20Command.md)