From ad496a028cee3e119177a3a7d9e9f4f0edb3f96c Mon Sep 17 00:00:00 2001
From: Stanislaw Halik <sthalik@misaki.pl>
Date: Sun, 7 May 2017 19:23:32 +0200
Subject: spline: add comment

---
 spline/spline.cpp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/spline/spline.cpp b/spline/spline.cpp
index 3c1c3eba..7ca8147c 100644
--- a/spline/spline.cpp
+++ b/spline/spline.cpp
@@ -447,6 +447,9 @@ double spline::bucket_size_coefficient(const QList<QPointF>& points) const
     if (unlikely(max_x < eps))
         return 0;
 
+    // needed to fill the buckets up to the last control point.
+    // space between that point and max_x doesn't matter.
+
     const int sz = element_count(points, max_x);
     const double last_x = sz ? points[sz - 1].x() : max_x;
 
-- 
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