From c75015faf7af6add60229fadf6b0472c65192b5d Mon Sep 17 00:00:00 2001
From: azv <azv@opencascade.com>
Date: Wed, 23 Sep 2015 09:04:26 +0300
Subject: [PATCH] Optimize performance of the sketch solver

---
 src/SketchSolver/SketchSolver_Constraint.cpp | 5 ++++-
 src/SketchSolver/SketchSolver_Constraint.h   | 5 ++++-
 2 files changed, 8 insertions(+), 2 deletions(-)

diff --git a/src/SketchSolver/SketchSolver_Constraint.cpp b/src/SketchSolver/SketchSolver_Constraint.cpp
index c1d0558f4..187a7cae5 100644
--- a/src/SketchSolver/SketchSolver_Constraint.cpp
+++ b/src/SketchSolver/SketchSolver_Constraint.cpp
@@ -221,8 +221,11 @@ void SketchSolver_Constraint::update(ConstraintPtr theConstraint)
   std::vector<Slvs_hConstraint>::iterator aCIter = mySlvsConstraints.begin();
   for (; aCIter != mySlvsConstraints.end(); aCIter++) {
     Slvs_Constraint aConstraint = myStorage->getConstraint(*aCIter);
-    if (aValueAttr)
+    if (aValueAttr) {
       aConstraint.valA = aValue;
+      if (aConstraint.type == SLVS_C_DIAMETER)
+        aConstraint.valA *= 2.0;
+    }
     Slvs_hEntity* aCoeffs[6] = {
         &aConstraint.ptA, &aConstraint.ptB,
         &aConstraint.entityA, &aConstraint.entityB,
diff --git a/src/SketchSolver/SketchSolver_Constraint.h b/src/SketchSolver/SketchSolver_Constraint.h
index f4a15db60..974143246 100644
--- a/src/SketchSolver/SketchSolver_Constraint.h
+++ b/src/SketchSolver/SketchSolver_Constraint.h
@@ -12,6 +12,7 @@
 
 #include <SketchPlugin_Constraint.h>
 
+#include <ModelAPI_AttributeDouble.h>
 #include <ModelAPI_AttributeRefAttr.h>
 
 #include <string>
@@ -223,8 +224,10 @@ public:
 
   virtual void adjustConstraint()
   {
+    AttributeDoublePtr aValueAttr = std::dynamic_pointer_cast<ModelAPI_AttributeDouble>(
+        myBaseConstraint->attribute(SketchPlugin_Constraint::VALUE()));
     Slvs_Constraint aConstraint = myStorage->getConstraint(mySlvsConstraints.front());
-    aConstraint.valA *= 2.0;
+    aConstraint.valA = 2.0 * aValueAttr->value();
     myStorage->updateConstraint(aConstraint);
   }
 };
-- 
2.39.2