From 60f9d868a6567740ffbb50f31a96a565b7aa7213 Mon Sep 17 00:00:00 2001
From: Samuel Asensi <asensi.samuel@gmail.com>
Date: Sat, 13 Oct 2018 15:33:21 +0200
Subject: [PATCH] Fix Path#arcTo() do not pass by through point (#1543)

Closes #1477
---
 src/path/Path.js   |  2 +-
 test/tests/Path.js | 10 ++++++++++
 2 files changed, 11 insertions(+), 1 deletion(-)

diff --git a/src/path/Path.js b/src/path/Path.js
index 451300f1..7bda104f 100644
--- a/src/path/Path.js
+++ b/src/path/Path.js
@@ -2546,7 +2546,7 @@ new function() { // PostScript-style drawing commands
                 }
                 vector = from.subtract(center);
                 extent = vector.getDirectedAngle(to.subtract(center));
-                var centerSide = line.getSide(center);
+                var centerSide = line.getSide(center, true);
                 if (centerSide === 0) {
                     // If the center is lying on the line, we might have gotten
                     // the wrong sign for extent above. Use the sign of the side
diff --git a/test/tests/Path.js b/test/tests/Path.js
index d5b8e812..7b268c2c 100644
--- a/test/tests/Path.js
+++ b/test/tests/Path.js
@@ -628,3 +628,13 @@ test('Path#add() with a lot of segments (#1493)', function() {
     path.clone();
     expect(0);
 });
+
+test('Path#arcTo(through, to) is on through point side (#1477)', function() {
+    var p1 = new Point(16, 21.5);
+    var p2 = new Point(22.5, 15);
+    var p3 = new Point(16.000000000000004, 8.5);
+    var path = new Path();
+    path.add(p1);
+    path.arcTo(p2, p3);
+    equals(true, path.segments[1].point.x > p1.x);
+});