Use the Extend command to edit entities so they have common boundary edges. Extend expands parts of entities to the intended boundary edge, letting you close polygons precisely or extend entities to the proper boundary edge. As drawing a entity expands, they do not change direction. A Line remains a Line, and an Arc remains an Arc.
To extend entities:
- Click Modify > Extend (or type Extend).
- In the graphics area, select entities to make up the boundary edges.
The Extend operation does not affect these entities.
- Press Enter.
- In the graphics area, select the entity to extend or specify an option:
- Crossing: Selects entities within and crossing a rectangle determined by two opposite points. If a crossing selection is not distinct, Extend resolves the selection by following the defined rectangle clockwise from the first point to the first entity encountered.
- Crossline: Uses the fence selection method to extend the selected drawing entities.
- Edge: Extends to a boundary edge that if extended, intersects the entity. The entities to extend do not have to actually intersect the boundary edge. To stretch to an implied intersection, select Edge followed by Extend.
- Erase: Deletes unneeded entities without exiting the Extend command.
- Project: Sets the projection mode toCCS (the X-Y plane of the current custom coordinate system), None, or View.
- Undo: Reverses the most recent extend operation.
- Shift + select: Lets you trim entities while you hold down Shift and select entities to trim.
Menu: Modify > Extend