From cbc0b7252127995470023986e6eb92724b90cecc Mon Sep 17 00:00:00 2001
From: Baku Hashimoto <mail@baku89.com>
Date: Wed, 21 Feb 2024 14:18:01 +0900
Subject: [PATCH] Add Line.trim

---
 src/Line.ts | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/src/Line.ts b/src/Line.ts
index e3d3050..93c50d8 100644
--- a/src/Line.ts
+++ b/src/Line.ts
@@ -46,6 +46,20 @@ export namespace Line {
 		return [...xAxis, ...yAxis, ...p]
 	}
 
+	export function trim(
+		line: SimpleSegmentL,
+		start: SegmentLocation,
+		end: SegmentLocation
+	): SegmentL {
+		const startTime = toTime(line, start)
+		const endTime = toTime(line, end)
+
+		const newStart = point(line, startTime)
+		const newEnd = point(line, endTime)
+
+		return {start: newStart, point: newEnd, command: 'L'}
+	}
+
 	export function divideAtTimes(
 		line: SimpleSegmentL,
 		times: number[]