From ccc9ee6ae19c6a404b3408f3b73a820cc3660e83 Mon Sep 17 00:00:00 2001
From: Andy <andyaport@gmail.com>
Date: Tue, 24 Jul 2018 15:07:02 -0700
Subject: [PATCH] added clipping to work around floating point error in
 Arc._parameterize()

---
 svgpathtools/path.py | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/svgpathtools/path.py b/svgpathtools/path.py
index 96783fd..5f4453f 100644
--- a/svgpathtools/path.py
+++ b/svgpathtools/path.py
@@ -1380,8 +1380,8 @@ class Arc(object):
         det_uv = u1.real*u2.imag - u1.imag*u2.real
 
         acosand = u1.real*u2.real + u1.imag*u2.imag
-        if acosand > 1 or acosand < -1:
-            acosand = round(acosand)
+        acosand = np.clip(acosand.real, -1, 1) + np.clip(acosand.imag, -1, 1)
+        
         if det_uv > 0:
             self.delta = degrees(acos(acosand))
         elif det_uv < 0: