From b2d58ce0bdcb14b365379613022137e1eca86d74 Mon Sep 17 00:00:00 2001
From: alex <alex@slab.org>
Date: Sun, 1 May 2022 17:06:26 +0100
Subject: [PATCH] Use this.duration for things

---
 packages/core/timespan.mjs | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/packages/core/timespan.mjs b/packages/core/timespan.mjs
index 6647b615..6cc69bdf 100644
--- a/packages/core/timespan.mjs
+++ b/packages/core/timespan.mjs
@@ -43,7 +43,7 @@ export class TimeSpan {
     // (Note that the output timespan probably does not start *at* Time 0 --
     // that only happens when the input Arc starts at an integral Time.)
     const b = this.begin.cyclePos();
-    const e = b.add(this.end.sub(this.begin));
+    const e = b.add(this.duration);
     return new TimeSpan(b, e);
   }
 
@@ -97,7 +97,7 @@ export class TimeSpan {
   }
 
   midpoint() {
-    return this.begin.add(this.end.sub(this.begin).div(Fraction(2)));
+    return this.begin.add(this.duration.div(Fraction(2)));
   }
 
   equals(other) {