Extend/A,to,L
Extend Arc to Line
Extends a arc to a line boundary. Start/End selector specifies which endpoint.
What It Does
The Extend/A,to,L operator extends a arc to a line boundary. The Start/End selector specifies which endpoint of the arc to extends.
Extends vs Trim: Extend lengthens an entity to reach a boundary. Trim shortens an entity to a boundary.
Syntax
Extend/A,to,L, ARC, to, LINE, Start|End
Quick Input
ARC: [reference]
LINE: [boundary reference]
End: ● Start ○ End
Direction Selector
| Selector | Meaning |
|---|---|
Start | Extend the start endpoint of the arc to the line |
End | Extend the end endpoint of the arc to the line |
The arc is extended along its circumference until it meets the line.
Worked Examples
A0=arc centre(0,0) r=50 30°-60° CCW, L0=horizontal Y=40
Extend/A0, to, L0, End
→ A0 end extended until arc meets L0
Analytic Rule
Find intersection of arc and line.
Move the selected endpoint to the intersection.
The arc is lengthened to reach the boundary.
Result: Exact analytic extension.
FAQ
What if the arc cannot reach the line?
XyzPilot returns an error. The arc must be able to reach the line.
What is the difference between Trim and Extend?
Trim shortens an entity to a boundary. Extend lengthens an entity to reach a boundary. Both use the same Start/End selector.