X-Git-Url: http://git.salome-platform.org/gitweb/?a=blobdiff_plain;f=src%2FSketchPlugin%2FSketchPlugin_Validators.cpp;h=3b79ad68cae45a90022ea0093a0bb4cddb89c0af;hb=868158fe6d39b25e60ac528295b1c908821e4af5;hp=c7117d4a8b7cc6f7dc079b5784f8963f0fca00aa;hpb=7bf19255421b34594c7b0a76d0ce28166d0ce895;p=modules%2Fshaper.git

diff --git a/src/SketchPlugin/SketchPlugin_Validators.cpp b/src/SketchPlugin/SketchPlugin_Validators.cpp
old mode 100644
new mode 100755
index c7117d4a8..3b79ad68c
--- a/src/SketchPlugin/SketchPlugin_Validators.cpp
+++ b/src/SketchPlugin/SketchPlugin_Validators.cpp
@@ -5,107 +5,558 @@
 // Author:      Vitaly SMETANNIKOV
 
 #include "SketchPlugin_Validators.h"
+
+#include "SketchPlugin_Arc.h"
+#include "SketchPlugin_Circle.h"
+#include "SketchPlugin_ConstraintCoincidence.h"
 #include "SketchPlugin_ConstraintDistance.h"
+#include "SketchPlugin_ConstraintRigid.h"
+#include "SketchPlugin_Line.h"
+#include "SketchPlugin_Point.h"
+#include "SketchPlugin_Sketch.h"
+#include "SketchPlugin_Tools.h"
+
+#include "SketcherPrs_Tools.h"
+
 #include <ModelAPI_Data.h>
 #include <ModelAPI_Validator.h>
-#include <ModelAPI_ResultValidator.h>
 #include <ModelAPI_AttributeDouble.h>
 #include <ModelAPI_AttributeRefAttr.h>
+#include <ModelAPI_AttributeRefList.h>
+#include <ModelAPI_AttributeSelectionList.h>
+#include <ModelAPI_AttributeString.h>
 #include <ModelAPI_Session.h>
+
 #include <GeomDataAPI_Point2D.h>
 
-bool SketchPlugin_DistanceAttrValidator::isValid(const FeaturePtr& theFeature,
+const double tolerance = 1.e-7;
+
+bool SketchPlugin_DistanceAttrValidator::isValid(const AttributePtr& theAttribute, 
                                                  const std::list<std::string>& theArguments,
-                                                 const ObjectPtr& theObject) const
+                                                 std::string& theError) const
 {
+  if (theAttribute->attributeType() != ModelAPI_AttributeRefAttr::typeId()) {
+    theError = "The attribute with the " + theAttribute->attributeType() + " type is not processed";
+    return false;
+  }
+
+  // there is a check whether the feature contains a point and a linear edge or two point values
   std::string aParamA = theArguments.front();
   SessionPtr aMgr = ModelAPI_Session::get();
   ModelAPI_ValidatorsFactory* aFactory = aMgr->validators();
 
-  // If the object is not a line then it is accepted
-  const ModelAPI_ResultValidator* aLineValidator =
-      dynamic_cast<const ModelAPI_ResultValidator*>(aFactory->validator("SketchPlugin_ResultLine"));
-  if (!aLineValidator->isValid(theObject))
+  AttributeRefAttrPtr aRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(theAttribute);
+  bool isObject = aRefAttr->isObject();
+  if (!isObject) {
+    // an attribute is a point. A point value is valid always for the distance
     return true;
+  } else {
+    // 1. check whether the references object is a linear
+    ObjectPtr anObject = aRefAttr->object();
 
-  // If it is a line then we have to check that first attribute id not a line
-  std::shared_ptr<GeomDataAPI_Point2D> aPoint = getFeaturePoint(theFeature->data(), aParamA);
-  if (aPoint)
-    return true;
-  return false;
+    const ModelAPI_AttributeValidator* aShapeValidator = 
+      dynamic_cast<const ModelAPI_AttributeValidator*>(aFactory->validator("GeomValidators_ShapeType"));
+    std::list<std::string> anArguments;
+    anArguments.push_back("circle");
+    std::string aCircleError;
+    bool aShapeValid = aShapeValidator->isValid(aRefAttr, anArguments, aCircleError);
+    // the circle line is not a valid case
+    if (aShapeValid) {
+      theError = "Circle can not be used in distance constraint";
+      return false;
+    }
+      
+    anArguments.clear();
+    anArguments.push_back("line");
+    std::string aLineError;
+    aShapeValid = aShapeValidator->isValid(aRefAttr, anArguments, aLineError);
+    // if the attribute value is not a line, that means it is a vertex. A vertex is always valid
+    if (aShapeValid) {
+      FeaturePtr aFeature = std::dynamic_pointer_cast<ModelAPI_Feature>(theAttribute->owner());
+      // If it is a line then we have to check that first attribute id not a line
+      std::shared_ptr<SketchPlugin_Feature> aSFeature =
+        std::dynamic_pointer_cast<SketchPlugin_Feature>(theAttribute->owner());
+      SketchPlugin_Sketch* aSketch = aSFeature->sketch();
+      std::shared_ptr<GeomAPI_Ax3> aPlane = SketchPlugin_Sketch::plane(aSketch);
+      std::shared_ptr<GeomDataAPI_Point2D> aPoint = SketcherPrs_Tools::getFeaturePoint(
+        aFeature->data(), aParamA, aPlane);
+      if (!aPoint.get()) {
+        theError = "One of parameters of distance constraint should be a point";
+        return false;
+      }
+    }
+  }
+  return true;
 }
 
-bool SketchPlugin_DistanceAttrValidator::isValid(
-  const AttributePtr& theAttribute, const std::list<std::string>& theArguments ) const
+bool SketchPlugin_TangentAttrValidator::isValid(const AttributePtr& theAttribute, 
+                                                const std::list<std::string>& theArguments,
+                                                std::string& theError) const
 {
-  std::shared_ptr<ModelAPI_AttributeRefAttr> anAttr = 
-    std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(theAttribute);
-  if (anAttr) {
-    const ObjectPtr& anObj = theAttribute->owner();
-    const FeaturePtr aFeature = std::dynamic_pointer_cast<ModelAPI_Feature>(anObj);
-    return isValid(aFeature, theArguments, anAttr->object());
-  }
-  return true; // it may be not reference attribute, in this case, it is OK
+  if (theAttribute->attributeType() != ModelAPI_AttributeRefAttr::typeId()) {
+    theError = "The attribute with the " + theAttribute->attributeType() + " type is not processed";
+    return false;
+  }
+
+  // there is a check whether the feature contains a point and a linear edge or two point values
+  std::string aParamA = theArguments.front();
+  SessionPtr aMgr = ModelAPI_Session::get();
+  ModelAPI_ValidatorsFactory* aFactory = aMgr->validators();
+
+  FeaturePtr anAttributeFeature = std::dynamic_pointer_cast<ModelAPI_Feature>(theAttribute->owner());
+  AttributeRefAttrPtr aRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(theAttribute);
+
+  bool isObject = aRefAttr->isObject();
+  ObjectPtr anObject = aRefAttr->object();
+  if (isObject && anObject.get()) {
+    FeaturePtr aRefFea = ModelAPI_Feature::feature(anObject);
+
+    AttributeRefAttrPtr aOtherAttr = anAttributeFeature->data()->refattr(aParamA);
+    ObjectPtr aOtherObject = aOtherAttr->object();
+    FeaturePtr aOtherFea = ModelAPI_Feature::feature(aOtherObject);
+
+    if (aRefFea->getKind() == SketchPlugin_Line::ID()) {
+      if (aOtherFea->getKind() != SketchPlugin_Arc::ID()) {
+        theError = "It refers to a " + SketchPlugin_Line::ID() + ", but " + aParamA + " is not an "
+          + SketchPlugin_Arc::ID();
+        return false;
+      }
+    }
+    else if (aRefFea->getKind() == SketchPlugin_Arc::ID()) {
+      if (aOtherFea->getKind() != SketchPlugin_Line::ID() &&
+        aOtherFea->getKind() != SketchPlugin_Arc::ID()) {
+        theError = "It refers to an " + SketchPlugin_Arc::ID() + ", but " + aParamA + " is not a "
+          + SketchPlugin_Line::ID() + " or an " + SketchPlugin_Arc::ID();
+        return false;
+      }
+    }
+    else {
+      theError = "It refers to " + aRefFea->getKind() + "but should refer to " + SketchPlugin_Line::ID()
+        + " or " + SketchPlugin_Arc::ID();
+      return false;
+    }
+    return true;
+  }
+  else {
+    theError = "It uses an empty object";
+    return false;
+  }
+
+  return true;
 }
 
-bool SketchPlugin_DifferentObjectsValidator::isValid(const FeaturePtr& theFeature,
-                                                 const std::list<std::string>& theArguments,
-                                                 const ObjectPtr& theObject) const
+bool SketchPlugin_NotFixedValidator::isValid(const AttributePtr& theAttribute, 
+                                             const std::list<std::string>& theArguments,
+                                             std::string& theError) const
 {
-  std::list<std::shared_ptr<ModelAPI_Attribute> > anAttrs = 
-    theFeature->data()->attributes(ModelAPI_AttributeRefAttr::type());
-  std::list<std::shared_ptr<ModelAPI_Attribute> >::iterator anAttr = anAttrs.begin();
-  for(; anAttr != anAttrs.end(); anAttr++) {
-    if (*anAttr) {
-      std::shared_ptr<ModelAPI_AttributeRefAttr> aRef = 
-        std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(*anAttr);
-      // check the object is already presented
-      if (aRef->isObject() && aRef->object() == theObject)
+  if (theAttribute->attributeType() != ModelAPI_AttributeRefAttr::typeId()) {
+    theError = "The attribute with the " + theAttribute->attributeType() + " type is not processed";
+    return false;
+  }
+
+  std::shared_ptr<SketchPlugin_Feature> aFeature =
+      std::dynamic_pointer_cast<SketchPlugin_Feature>(theAttribute->owner());
+  if (!aFeature)
+    return true;
+
+  AttributeRefAttrPtr aRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(theAttribute);
+
+  SketchPlugin_Sketch* aSketch = aFeature->sketch();
+  int aNbFeatures = aSketch->numberOfSubs();
+  for (int anInd = 0; anInd < aNbFeatures; anInd++) {
+    FeaturePtr aSubFeature = aSketch->subFeature(anInd);
+    if (aSubFeature->getKind() != SketchPlugin_ConstraintRigid::ID() || aSubFeature == aFeature)
+      continue;
+    AttributeRefAttrPtr aRAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
+        aSubFeature->attribute(SketchPlugin_ConstraintRigid::ENTITY_A()));
+    if (aRefAttr->isObject()) {
+      if (aRefAttr->object() == aRAttr->object()) {
+        ObjectPtr anObject = aRefAttr->object();
+        std::string aName = anObject.get() ? anObject->data()->name() : "";
+        theError = "The object " + aName + " has been already fixed.";
         return false;
+      }
+    }
+    else if (aRefAttr->attr() == aRAttr->attr()) {
+      AttributePtr anAttribute = aRefAttr->attr();
+      std::string aName = anAttribute.get() ? anAttribute->id() : "";
+      theError = "The attribute " + aName + " has been already fixed.";
+      return false;
+    }
+  }
+  return true;
+}
+
+bool SketchPlugin_EqualAttrValidator::isValid(const AttributePtr& theAttribute, 
+                                              const std::list<std::string>& theArguments,
+                                              std::string& theError) const
+{
+  if (theAttribute->attributeType() != ModelAPI_AttributeRefAttr::typeId()) {
+    theError = "The attribute with the " + theAttribute->attributeType() + " type is not processed";
+    return false;
+  }
+
+  std::string aParamA = theArguments.front();
+  FeaturePtr aFeature = std::dynamic_pointer_cast<ModelAPI_Feature>(theAttribute->owner());
+  AttributeRefAttrPtr aRefAttr[2];
+  aRefAttr[0] = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(theAttribute);
+  aRefAttr[1] = aFeature->data()->refattr(aParamA);
+
+  if (!aRefAttr[0]->isObject() || !aRefAttr[1]->isObject()) {
+    theError = "Attributes can not be used in equal constraint";
+    return false;
+  }
+
+  int aType[2] = {0, 0}; // types of attributes: 0 - incorrect, 1 - line, 2 - circle, 3 - arc
+  std::list<std::string> anArguments;
+  for (int i = 0; i < 2; i++) {
+    ObjectPtr anObject = aRefAttr[i]->object();
+    if (!anObject.get()) {
+      theError = "An empty object is used.";
+      return false;
+    }
+
+    aFeature = ModelAPI_Feature::feature(anObject);
+    if (!aFeature.get()) {
+      theError = "An empty feature is used.";
+      return false;
+    }
+
+    if (aFeature->getKind() == SketchPlugin_Line::ID()) {
+      aType[i] = 1;
+      continue;
     }
+    if (aFeature->getKind() == SketchPlugin_Circle::ID()) {
+      aType[i] = 2;
+      continue;
+    }
+    if (aFeature->getKind() == SketchPlugin_Arc::ID()) {
+      aType[i] = 3;
+      continue;
+    }
+    theError = "The " + aFeature->getKind() + " feature kind of attribute is wrong. It should be " +
+               SketchPlugin_Line::ID() + " or " + SketchPlugin_Circle::ID() + " or " + 
+               SketchPlugin_Arc::ID();
+    // wrong type of attribute
+    return false;
+  }
+
+  if ((aType[0] == 1 && aType[1] == 2) ||
+      (aType[0] == 2 && aType[1] == 1)) {
+    theError = "Feature with kinds " + SketchPlugin_Line::ID() + " and " +
+               SketchPlugin_Circle::ID() + "can not be equal.";
+    return false;
   }
   return true;
 }
 
-bool SketchPlugin_DifferentObjectsValidator::isValid(
-  const AttributePtr& theAttribute, const std::list<std::string>& theArguments ) const
+bool SketchPlugin_MirrorAttrValidator::isValid(const AttributePtr& theAttribute, 
+                                               const std::list<std::string>& theArguments,
+                                               std::string& theError) const
 {
-  std::shared_ptr<ModelAPI_AttributeRefAttr> anOrigAttr = 
-    std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(theAttribute);
-  if (anOrigAttr && anOrigAttr->isObject()) {
-    const ObjectPtr& anObj = theAttribute->owner();
-    const FeaturePtr aFeature = std::dynamic_pointer_cast<ModelAPI_Feature>(anObj);
-
-    std::list<std::shared_ptr<ModelAPI_Attribute> > anAttrs = 
-      aFeature->data()->attributes(ModelAPI_AttributeRefAttr::type());
-    std::list<std::shared_ptr<ModelAPI_Attribute> >::iterator anAttr = anAttrs.begin();
-    for(; anAttr != anAttrs.end(); anAttr++) {
-      if (*anAttr && *anAttr != theAttribute) {
-        std::shared_ptr<ModelAPI_AttributeRefAttr> aRef = 
-          std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(*anAttr);
-        // check the object is already presented
-        if (aRef->isObject() && aRef->object() == anOrigAttr->object())
-          return false;
+  if (theAttribute->attributeType() != ModelAPI_AttributeRefList::typeId()) {
+    theError = "The attribute with the " + theAttribute->attributeType() + " type is not processed";
+    return false;
+  }
+
+  FeaturePtr aFeature = std::dynamic_pointer_cast<ModelAPI_Feature>(theAttribute->owner());
+  AttributeRefListPtr aSelAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefList>(theAttribute);
+
+  AttributeRefListPtr aRefListOfMirrored = std::dynamic_pointer_cast<ModelAPI_AttributeRefList>(
+      aFeature->attribute(SketchPlugin_Constraint::ENTITY_C()));
+  std::list<ObjectPtr> aMirroredObjects = aRefListOfMirrored->list();
+
+  for(int anInd = 0; anInd < aSelAttr->size(); anInd++) {
+    ObjectPtr aSelObject = aSelAttr->object(anInd);
+    std::string aName = aSelObject.get() ? aSelObject->data()->name() : "";
+    std::list<ObjectPtr>::iterator aMirIter = aMirroredObjects.begin();
+    for (; aMirIter != aMirroredObjects.end(); aMirIter++)
+      if (aSelObject == *aMirIter) {
+        theError = "The object " + aName + " is a result of mirror";
+        return false;
       }
+  }
+  return true;
+}
+
+
+bool SketchPlugin_CoincidenceAttrValidator::isValid(const AttributePtr& theAttribute, 
+                                                    const std::list<std::string>& theArguments,
+                                                    std::string& theError) const
+{
+  if (theAttribute->attributeType() != ModelAPI_AttributeRefAttr::typeId()) {
+    theError = "The attribute with the " + theAttribute->attributeType() + " type is not processed";
+    return false;
+  }
+
+  // there is a check whether the feature contains a point and a linear edge or two point values
+  std::string aParamA = theArguments.front();
+  SessionPtr aMgr = ModelAPI_Session::get();
+  ModelAPI_ValidatorsFactory* aFactory = aMgr->validators();
+
+  FeaturePtr aConstraint = std::dynamic_pointer_cast<ModelAPI_Feature>(theAttribute->owner());
+  AttributeRefAttrPtr aRefAttrA = aConstraint->data()->refattr(aParamA);
+  if (!aRefAttrA) {
+    theError = "The " + aParamA + " attribute " + " should be " + ModelAPI_AttributeRefAttr::typeId();
+    return false;
+  }
+
+  AttributeRefAttrPtr aRefAttrB = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(theAttribute);
+
+  // first attribute is a point, it may coincide with any object
+  if (!aRefAttrA->isObject())
+    return true;
+  else {
+    ObjectPtr anObject = aRefAttrA->object();
+    if (!anObject.get()) {
+      theError = aParamA + " attribute has an empty object";
+      return false;
+    }
+    FeaturePtr aFeature = ModelAPI_Feature::feature(aRefAttrA->object());
+    if (!aFeature.get()) {
+      theError = aParamA + " attribute has an empty feature";
+      return false;
+    }
+
+    if (aFeature->getKind() == SketchPlugin_Point::ID())
+      return true;
+  }
+
+  // second attribute is a point, it may coincide with any object
+  if (!aRefAttrB->isObject())
+    return true;
+  else {
+    FeaturePtr aFeature = ModelAPI_Feature::feature(aRefAttrB->object());
+    if (!aFeature) {
+      theError = theAttribute->id() + " attribute has an empty object";
+      return false;
     }
+    if (aFeature->getKind() == SketchPlugin_Point::ID())
+      return true;
+  }
+  theError = "There is no an attribute filled by a point";
+  return false;
+}
+
+
+bool SketchPlugin_CopyValidator::isValid(const AttributePtr& theAttribute, 
+                                         const std::list<std::string>& theArguments,
+                                         std::string& theError) const
+{
+  if (theAttribute->attributeType() != ModelAPI_AttributeRefList::typeId()) {
+    theError = "The attribute with the " + theAttribute->attributeType() + " type is not processed";
+    return false;
+  }
+
+  FeaturePtr aFeature = std::dynamic_pointer_cast<ModelAPI_Feature>(theAttribute->owner());
+  AttributeRefListPtr aSelAttr = 
+    std::dynamic_pointer_cast<ModelAPI_AttributeRefList>(theAttribute);
+
+  AttributeRefListPtr aRefListOfInitial = std::dynamic_pointer_cast<ModelAPI_AttributeRefList>(
+      aFeature->attribute(SketchPlugin_Constraint::ENTITY_A()));
+  AttributeRefListPtr aRefListOfCopied = std::dynamic_pointer_cast<ModelAPI_AttributeRefList>(
+      aFeature->attribute(SketchPlugin_Constraint::ENTITY_B()));
+  std::list<ObjectPtr> anInitialObjects = aRefListOfInitial->list();
+  std::list<ObjectPtr> aCopiedObjects = aRefListOfCopied->list();
+
+  std::list<ObjectPtr>::iterator anObjIter;
+  for(int anInd = 0; anInd < aSelAttr->size(); anInd++) {
+    ObjectPtr aSelObject = aSelAttr->object(anInd);
+    anObjIter = anInitialObjects.begin();
+    for (; anObjIter != anInitialObjects.end(); anObjIter++)
+      if (aSelObject == *anObjIter)
+        break;
+    if (anObjIter != anInitialObjects.end())
+      continue;
+    anObjIter = aCopiedObjects.begin();
+    for (; anObjIter != aCopiedObjects.end(); anObjIter++)
+      if (aSelObject == *anObjIter) {
+        std::string aName = aSelObject.get() ? aSelObject->data()->name() : "";
+        theError = "The object " + aName + " is a result of copy";
+        return false;
+      }
+  }
+  return true;
+}
+
+bool SketchPlugin_SolverErrorValidator::isValid(const std::shared_ptr<ModelAPI_Feature>& theFeature,
+                                                const std::list<std::string>& theArguments,
+                                                std::string& theError) const
+{
+  AttributeStringPtr aAttributeString = theFeature->string(SketchPlugin_Sketch::SOLVER_ERROR());
+
+  if (!aAttributeString->value().empty()) {
+    theError = aAttributeString->value();
+    return false;
   }
+
   return true;
 }
 
-bool SketchPlugin_DifferentObjectsValidator::isValid(const FeaturePtr& theFeature,
-  const std::list<std::string>& theArguments, const AttributePtr& theAttribute) const
+bool SketchPlugin_SolverErrorValidator::isNotObligatory(std::string theFeature, std::string theAttribute)
 {
-  std::list<std::shared_ptr<ModelAPI_Attribute> > anAttrs = 
-    theFeature->data()->attributes(ModelAPI_AttributeRefAttr::type());
-  std::list<std::shared_ptr<ModelAPI_Attribute> >::iterator anAttr = anAttrs.begin();
-  for(; anAttr != anAttrs.end(); anAttr++) {
-    if (*anAttr) {
-      std::shared_ptr<ModelAPI_AttributeRefAttr> aRef = 
-        std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(*anAttr);
-      // check the object is already presented
-      if (!aRef->isObject() && aRef->attr() == theAttribute)
+  return true;
+}
+
+bool SketchPlugin_FilletVertexValidator::isValid(const AttributePtr& theAttribute,
+                                                 const std::list<std::string>& theArguments,
+                                                 std::string& theError) const
+{
+  if(!theAttribute.get()) {
+    return false;
+  }
+
+  AttributeRefAttrPtr aBase = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(theAttribute);
+  AttributePtr anAttrBase = aBase->attr();
+  if(aBase->isObject()) {
+    return false;
+  }
+
+  // If we alredy have some result then:
+  // - if it is the same point all ok
+  // - if it is point on the fillet arc then it is not valid
+  FeaturePtr aFeature = std::dynamic_pointer_cast<ModelAPI_Feature>(theAttribute->owner());
+  AttributePtr aBaseLinesAttribute = aFeature->attribute(SketchPlugin_Constraint::ENTITY_C());
+  AttributeRefListPtr aRefListOfBaseLines = std::dynamic_pointer_cast<ModelAPI_AttributeRefList>(aBaseLinesAttribute);
+  std::list<ObjectPtr> anOldFeatList = aRefListOfBaseLines->list();
+  if(!aRefListOfBaseLines->list().empty()) {
+    FeaturePtr anOldFeatureA, anOldFeatureB;
+    std::list<ObjectPtr>::iterator aFeatIt = anOldFeatList.begin();
+    anOldFeatureA = ModelAPI_Feature::feature(*aFeatIt++);
+    anOldFeatureB = ModelAPI_Feature::feature(*aFeatIt);
+
+    AttributePtr anAttrStartA = 
+      anOldFeatureA->attribute(anOldFeatureA->getKind() == SketchPlugin_Line::ID() ? SketchPlugin_Line::START_ID() : SketchPlugin_Arc::START_ID());
+    AttributePtr anAttrEndA = 
+      anOldFeatureA->attribute(anOldFeatureA->getKind() == SketchPlugin_Line::ID() ? SketchPlugin_Line::END_ID() : SketchPlugin_Arc::END_ID());
+    AttributePtr anAttrStartB = 
+      anOldFeatureB->attribute(anOldFeatureB->getKind() == SketchPlugin_Line::ID() ? SketchPlugin_Line::START_ID() : SketchPlugin_Arc::START_ID());
+    AttributePtr anAttrEndB = 
+      anOldFeatureB->attribute(anOldFeatureB->getKind() == SketchPlugin_Line::ID() ? SketchPlugin_Line::END_ID() : SketchPlugin_Arc::END_ID());
+
+    std::shared_ptr<GeomAPI_Pnt2d> aBasePnt = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(anAttrBase)->pnt();
+    std::shared_ptr<GeomAPI_Pnt2d> aStartPntA = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(anAttrStartA)->pnt();
+    std::shared_ptr<GeomAPI_Pnt2d> anEndPntA = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(anAttrEndA)->pnt();
+    std::shared_ptr<GeomAPI_Pnt2d> aStartPntB = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(anAttrStartB)->pnt();
+    std::shared_ptr<GeomAPI_Pnt2d> anEndPntB = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(anAttrEndB)->pnt();
+    double aDistBaseStartA = aBasePnt->distance(aStartPntA);
+    double aDistBaseEndA = aBasePnt->distance(anEndPntA);
+    double aDistStartAStartB = aStartPntA->distance(aStartPntB);
+    double aDistStartAEndB = aStartPntA->distance(anEndPntB);
+    double aDistEndAStartB = anEndPntA->distance(aStartPntB);
+    double aDistEndAEndB = anEndPntA->distance(anEndPntB);
+
+    if((aDistBaseStartA < tolerance && (aDistStartAStartB < tolerance || aDistStartAEndB < tolerance)) ||
+      (aDistBaseEndA < tolerance && (aDistEndAStartB < tolerance || aDistEndAStartB < tolerance))) {
+      return true;
+    }
+
+    // Check that point not on fillet arc
+    AttributeRefListPtr aRefListOfFillet = std::dynamic_pointer_cast<ModelAPI_AttributeRefList>(
+        aFeature->attribute(SketchPlugin_Constraint::ENTITY_B()));
+    std::list<ObjectPtr> aNewFeatList = aRefListOfFillet->list();
+    if(!aNewFeatList.empty()) {
+      aFeatIt = aNewFeatList.begin();
+      FeaturePtr aNewArc;
+      //aNewFeatureA = ModelAPI_Feature::feature(*aFeatIt++);
+      //aNewFeatureB = ModelAPI_Feature::feature(*aFeatIt++);
+      aFeatIt++; aFeatIt++;
+      aNewArc = ModelAPI_Feature::feature(*aFeatIt);
+      AttributePtr anArcStart = aNewArc->attribute(SketchPlugin_Arc::START_ID());
+      AttributePtr anArcEnd = aNewArc->attribute(SketchPlugin_Arc::END_ID());
+      std::shared_ptr<GeomAPI_Pnt2d> anArcStartPnt = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(anArcStart)->pnt();
+      std::shared_ptr<GeomAPI_Pnt2d> anArcEndPnt = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(anArcEnd)->pnt();
+      double aDistBaseArcStart = aBasePnt->distance(anArcStartPnt);
+      double aDistBaseArcEnd = aBasePnt->distance(anArcEndPnt);
+      if(aDistBaseArcStart < tolerance || aDistBaseArcEnd < tolerance) {
         return false;
+      }
+    }
+  }
+
+  const std::set<AttributePtr>& aRefsList = anAttrBase->owner()->data()->refsToMe();
+  std::set<AttributePtr>::const_iterator aIt;
+  FeaturePtr aCoincident;
+  for (aIt = aRefsList.cbegin(); aIt != aRefsList.cend(); ++aIt) {
+    std::shared_ptr<ModelAPI_Attribute> aAttr = (*aIt);
+    FeaturePtr aConstrFeature = std::dynamic_pointer_cast<ModelAPI_Feature>(aAttr->owner());
+    if (aConstrFeature->getKind() == SketchPlugin_ConstraintCoincidence::ID()) {
+      AttributeRefAttrPtr anAttrRefA = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
+        aConstrFeature->attribute(SketchPlugin_ConstraintCoincidence::ENTITY_A()));
+      AttributeRefAttrPtr anAttrRefB = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
+        aConstrFeature->attribute(SketchPlugin_ConstraintCoincidence::ENTITY_B()));
+      if(anAttrRefA.get() && !anAttrRefA->isObject()) {
+        AttributePtr anAttrA = anAttrRefA->attr();
+        if(anAttrBase == anAttrA) {
+          aCoincident = aConstrFeature;
+          break;
+        }
+      }
+      if(anAttrRefA.get() && !anAttrRefB->isObject()) {
+        AttributePtr anAttrB = anAttrRefB->attr();
+        if(anAttrBase == anAttrB) {
+          aCoincident = aConstrFeature;
+          break;
+        }
+      }
+    }
+  }
+
+  if(!aCoincident.get()) {
+    return false;
+  }
+
+  std::set<FeaturePtr> aCoinsides;
+  SketchPlugin_Tools::findCoincidences(aCoincident,
+                                       SketchPlugin_ConstraintCoincidence::ENTITY_A(),
+                                       aCoinsides);
+  SketchPlugin_Tools::findCoincidences(aCoincident,
+                                       SketchPlugin_ConstraintCoincidence::ENTITY_B(),
+                                       aCoinsides);
+  // Remove points
+  std::set<FeaturePtr> aNewLines;
+  for(std::set<FeaturePtr>::iterator anIt = aCoinsides.begin(); anIt != aCoinsides.end(); ++anIt) {
+    if((*anIt)->getKind() != SketchPlugin_Point::ID()) {
+      aNewLines.insert(*anIt);
+    }
+  }
+  aCoinsides = aNewLines;
+
+  // Remove auxilary lines
+  if(aCoinsides.size() > 2) {
+    aNewLines.clear();
+    for(std::set<FeaturePtr>::iterator anIt = aCoinsides.begin(); anIt != aCoinsides.end(); ++anIt) {
+      if(!(*anIt)->boolean(SketchPlugin_SketchEntity::AUXILIARY_ID())->value()) {
+        aNewLines.insert(*anIt);
+      }
     }
+    aCoinsides = aNewLines;
+  }
+
+  if(aCoinsides.size() != 2) {
+    return false;
   }
+
+  // Check that lines not collinear
+  std::set<FeaturePtr>::iterator anIt = aCoinsides.begin();
+  FeaturePtr aFirstFeature = *anIt++;
+  FeaturePtr aSecondFeature = *anIt;
+  if(aFirstFeature->getKind() == SketchPlugin_Line::ID() && aSecondFeature->getKind() == SketchPlugin_Line::ID()) {
+    std::string aStartAttr = SketchPlugin_Line::START_ID();
+    std::string anEndAttr = SketchPlugin_Line::END_ID();
+    std::shared_ptr<GeomAPI_Pnt2d> aFirstStartPnt, aFirstEndPnt, aSecondStartPnt, aSecondEndPnt;
+    aFirstStartPnt = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(aFirstFeature->attribute(aStartAttr))->pnt();
+    aFirstEndPnt = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(aFirstFeature->attribute(anEndAttr))->pnt();
+    aSecondStartPnt = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(aSecondFeature->attribute(aStartAttr))->pnt();
+    aSecondEndPnt = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(aSecondFeature->attribute(anEndAttr))->pnt();
+    double aCheck1 = abs((aFirstEndPnt->x() - aFirstStartPnt->x()) * (aSecondStartPnt->y() - aFirstStartPnt->y()) -
+      (aSecondStartPnt->x() - aFirstStartPnt->x()) * (aFirstEndPnt->y() - aFirstStartPnt->y()));
+    double aCheck2 = abs((aFirstEndPnt->x() - aFirstStartPnt->x()) * (aSecondEndPnt->y() - aFirstStartPnt->y()) -
+      (aSecondEndPnt->x() - aFirstStartPnt->x()) * (aFirstEndPnt->y() - aFirstStartPnt->y()));
+    if(aCheck1 < 1.e-7 && aCheck2 < 1.e-7) {
+      return false;
+    }
+  }
+
   return true;
 }