GstarCAD 2027 · Command Reference
Commands > L Command > LENGTHEN
Function Description:
This command is used to change the length of objects and angles of arcs. Users can change length or angle by specifying a percentage, total or dynamic. Using the LENGTHEN command is equivalent to the TRIM or EXTEND command.
Command Access:
Icon:
Menu: Modify > Lengthen
Ribbon: Home > Modify > Lengthen
Toolbar: /
Command: LENGTHEN
Alias: LEN
Command Prompts:
Select an object or [DElta/Percent/Total/DYnamic]:
Displays the current length of the selected object. The LENGTHEN command has no effect on closed objects. The direction of extrusion does not need to be parallel to the Z axis of the current UCS.
Changes the length of objects by specified delta, the value of delta is measured from the nearest end point of select objects. Users can also use this way to change angles of arcs. The value of delta is measured from the nearest end point of select arc. If the delta value is positive, the selected object will be extended, on the contrary if the delta value is negative, the selected object will be trimmed.


Sets the length of an object by a specified percentage of its total length.3


Sets the length of a selected object by setting absolute value of the total length, the total length is measured from the fixed endpoint. The Total option also specifies the included angle of a selected arc by a specified total angle.
- Angle:
Sets the included angle of the selected arc.

Turns on the Dynamic Dragging mode. Users can change the length of a selected object by dragging one endpoint, and the other endpoint remains unchanged.
Related References:
Related Tasks:
Article ID: 3782
Created: September 26, 2026
Last Updated: September 25, 2026
Author: kbadmin
Online URL: https://kb.gstarcad.com.my/article/lengthen-command-gstarcad-2027-3782.html