From 305116b958ad7eb39d044ba14f5103c9d138853e Mon Sep 17 00:00:00 2001
From: azv <azv@opencascade.com>
Date: Mon, 5 Dec 2016 13:16:43 +0300
Subject: [PATCH] Fix because of Angle unit test failed

---
 src/SketchPlugin/SketchPlugin_ConstraintAngle.cpp | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/src/SketchPlugin/SketchPlugin_ConstraintAngle.cpp b/src/SketchPlugin/SketchPlugin_ConstraintAngle.cpp
index 9743e6511..108818439 100644
--- a/src/SketchPlugin/SketchPlugin_ConstraintAngle.cpp
+++ b/src/SketchPlugin/SketchPlugin_ConstraintAngle.cpp
@@ -149,10 +149,16 @@ void SketchPlugin_ConstraintAngle::attributeChanged(const std::string& theID)
     myFlyoutUpdate = false;
   }
   else if (theID == SketchPlugin_ConstraintAngle::TYPE_ID()) {
-    double anAngle = calculateAngle();
     std::shared_ptr<ModelAPI_AttributeDouble> aValueAttr = std::dynamic_pointer_cast<
-      ModelAPI_AttributeDouble>(data()->attribute(SketchPlugin_ConstraintAngle::VALUE()));
-    aValueAttr->setValue(anAngle);
+      ModelAPI_AttributeDouble>(data()->attribute(SketchPlugin_ConstraintAngle::ANGLE_VALUE_ID()));
+    double anAngle = calculateAngle();
+    if (aValueAttr->text().empty())
+      aValueAttr->setValue(anAngle);
+    else {
+      aValueAttr = std::dynamic_pointer_cast<
+        ModelAPI_AttributeDouble>(data()->attribute(SketchPlugin_ConstraintAngle::VALUE()));
+      aValueAttr->setValue(anAngle);
+    }
   }
   else if (theID == SketchPlugin_ConstraintAngle::ANGLE_VALUE_ID()) {
     updateConstraintValueByAngleValue();
-- 
2.39.2