From e854ed068d993f1239dbd550e9b7512856f7c1e6 Mon Sep 17 00:00:00 2001
From: Roman Telezhynskyi <kroluku@gmail.com>
Date: Sat, 7 May 2016 11:37:46 +0300
Subject: [PATCH] Fixed issue #485. Error when drawing a curved path.

--HG--
branch : release
---
 src/libs/vgeometry/vgobject.cpp | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/libs/vgeometry/vgobject.cpp b/src/libs/vgeometry/vgobject.cpp
index 8bcab8340..ab25ae179 100644
--- a/src/libs/vgeometry/vgobject.cpp
+++ b/src/libs/vgeometry/vgobject.cpp
@@ -352,6 +352,12 @@ int VGObject::IntersectionCircles(const QPointF &c1, double r1, const QPointF &c
  */
 qint32 VGObject::LineIntersectCircle(const QPointF &center, qreal radius, const QLineF &line, QPointF &p1, QPointF &p2)
 {
+    // Fix for issue #485. https://bitbucket.org/dismine/valentina/issues/485/error-when-drawing-a-curved-path
+    if (qFuzzyIsNull(line.length()))
+    {
+        return 0;
+    }
+
     //coefficient for equation of segment
     qreal a = 0, b = 0, c = 0;
     LineCoefficients(line, &a, &b, &c);