From b88e3bc4aca98808bee5a0bcccc76f11ec04a409 Mon Sep 17 00:00:00 2001
From: azv <azv@opencascade.com>
Date: Fri, 17 Apr 2015 11:45:29 +0300
Subject: [PATCH] Issue #479: Conflicting constraints on multi-coincidence with
 the fixed point

---
 .../SketchSolver_ConstraintCoincidence.cpp       | 16 ++++++++++++++++
 .../SketchSolver_ConstraintCoincidence.h         |  4 ++++
 2 files changed, 20 insertions(+)

diff --git a/src/SketchSolver/SketchSolver_ConstraintCoincidence.cpp b/src/SketchSolver/SketchSolver_ConstraintCoincidence.cpp
index bfa65c19e..4f1b07f8f 100644
--- a/src/SketchSolver/SketchSolver_ConstraintCoincidence.cpp
+++ b/src/SketchSolver/SketchSolver_ConstraintCoincidence.cpp
@@ -103,6 +103,22 @@ void SketchSolver_ConstraintCoincidence::addConstraint(ConstraintPtr theConstrai
   myExtraCoincidence[aNewConstr] = theConstraint;
 }
 
+void SketchSolver_ConstraintCoincidence::process()
+{
+  SketchSolver_Constraint::process();
+
+  // Fill the list of coincident points
+  std::list<AttributePtr> anAttrList =
+      myBaseConstraint->data()->attributes(ModelAPI_AttributeRefAttr::typeId());
+  std::list<AttributePtr>::iterator anIt = anAttrList.begin();
+  for (; anIt != anAttrList.end(); anIt++) {
+    AttributeRefAttrPtr aRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(*anIt);
+    if (!aRefAttr || aRefAttr->isObject())
+      continue;
+    myCoincidentPoints.insert(aRefAttr->attr());
+  }
+}
+
 bool SketchSolver_ConstraintCoincidence::remove(ConstraintPtr theConstraint)
 {
   cleanErrorMsg();
diff --git a/src/SketchSolver/SketchSolver_ConstraintCoincidence.h b/src/SketchSolver/SketchSolver_ConstraintCoincidence.h
index e8cbb8e40..a5c885ade 100644
--- a/src/SketchSolver/SketchSolver_ConstraintCoincidence.h
+++ b/src/SketchSolver/SketchSolver_ConstraintCoincidence.h
@@ -41,6 +41,10 @@ public:
   /// \brief Append all data of coincidence constaint to the current
   void attach(std::shared_ptr<SketchSolver_ConstraintCoincidence> theConstraint);
 
+protected:
+  /// \brief Converts SketchPlugin constraint to a list of SolveSpace constraints
+  virtual void process();
+
 private:
   /// \brief Creates new coincidence constraint
   Slvs_hConstraint addConstraint(Slvs_hEntity thePoint1, Slvs_hEntity thePoint2);
-- 
2.39.2