EXTEND Command

Extends an object to meet another object

	Modify toolbar:
	Modify menu: Extend
	Command line:extend

Select boundary edges: (Projmode = UCS, Edgemode = No extend)
Select objects: Use an object selection method or press ENTER

Objects that can be extended include arcs, elliptical arcs, lines, open 2D and 3D polylines, and rays.

Select Objects for Boundary

Select the objects that define the boundary edges to which you want to extend the object or press ENTER to select all objects as potential boundaries. Valid boundary objects include 2D and 3D polylines, arcs, circles, ellipses, floating viewports, lines, rays, regions, splines, text, and xlines.

If you select a 2D polyline as a boundary object, AutoCAD LT ignores its width and extends objects to the center line of the polyline.

Extending a spline-fit polyline adds a new vertex to the control frame for the polyline.

If you extend a tapered polyline segment, AutoCAD LT corrects the width of the extended end to continue its original taper to the new endpoint. If this causes the segment to have a negative ending width, the ending width becomes zero.

<Select object to extend> / Project / Edge / Undo: Select an object, enter an option, or press ENTER

Select Object to Extend (EXTEND)

Specifies the object to extend. AutoCAD LT repeats the prompt so that you can extend multiple objects. Pressing ENTER ends the command.

Project (EXTEND)

Specifies the projection method AutoCAD LT uses when extending objects in different 3D planes.

None / Ucs / View <current>: Enter an option or press ENTER

• None. Specifies no projection. AutoCAD LT extends only objects that would intersect the boundary edge in 3D space.
• UCS. Specifies projection onto the XY plane of the current UCS. AutoCAD LT extends objects that do not intersect with the boundary objects in 3D space.
• View. Specifies projection along the current view direction.

Determines whether the object is extended to the implied edge of a boundary object or only to an object that would actually intersect it in 3D space.

Selected boundary Object to extend

Extend/ No extend<current>: Enter an option or press ENTER

• Extend. Extends the boundary object along its natural path to intersect another object or its implied edge in 3D space.

  

  Result: Extend

• No extend. Specifies that the object is to extend only to a boundary object that actually intersects it in 3D space.

  

  Result: No extend

Reverses the most recent changes made by the EXTEND command.

Related Commands: LENGTHEN lengthens an object. TRIM trims objects at a specified cutting edge.
System Variables: EDGEMODE determines whether an object is extended to another object's implied edge or only to an object that intersects it in 3D space. PROJMODE specifies the Projection method AutoCAD LT uses when extending objects.