From 0852116f20f2e9a48124102209eafbde3df7d046 Mon Sep 17 00:00:00 2001
From: azv <azv@opencascade.com>
Date: Wed, 22 Jun 2016 09:13:10 +0300
Subject: [PATCH] Initialize necessary attributes of external arc (issue #1580)

---
 src/SketchPlugin/SketchPlugin_Arc.cpp | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/SketchPlugin/SketchPlugin_Arc.cpp b/src/SketchPlugin/SketchPlugin_Arc.cpp
index a787a5d65..9825ce9c2 100644
--- a/src/SketchPlugin/SketchPlugin_Arc.cpp
+++ b/src/SketchPlugin/SketchPlugin_Arc.cpp
@@ -334,6 +334,11 @@ void SketchPlugin_Arc::attributeChanged(const std::string& theID)
         aStartAttr->setValue(sketch()->to2D(anEdge->firstPoint()));
         anEndAttr->setValue(sketch()->to2D(anEdge->lastPoint()));
         aCenterAttr->setValue(sketch()->to2D(aCirc->center()));
+
+        data()->real(RADIUS_ID())->setValue(aCirc->radius());
+        double aStartAngle, aEndAngle;
+        anEdge->getRange(aStartAngle, aEndAngle);
+        data()->real(ANGLE_ID())->setValue(aEndAngle - aStartAngle);
       }
     }
     return;
-- 
2.39.2