src/SketchPlugin/SketchPlugin_ConstraintSplit.cpp

   1 // Copyright (C) 2014-20xx CEA/DEN, EDF R&D -->
   2
   3 // File:    SketchPlugin_ConstraintSplit.cpp
   4 // Created: 25 Aug 2016
   5 // Author:  Natalia ERMOLAEVA
   6
   7 #include "SketchPlugin_ConstraintSplit.h"
   8
   9 #include <GeomAPI_Dir2d.h>
  10 #include <GeomAPI_Pnt2d.h>
  11 #include <GeomAPI_XY.h>
  12 #include <GeomDataAPI_Point2D.h>
  13 #include <GeomAlgoAPI_ShapeTools.h>
  14
  15 #include <ModelAPI_AttributeReference.h>
  16 #include <ModelAPI_AttributeString.h>
  17 #include <ModelAPI_AttributeRefAttr.h>
  18 #include <ModelAPI_Tools.h>
  19
  20 #include <ModelAPI_Validator.h>
  21 #include <ModelAPI_Session.h>
  22 #include <ModelAPI_AttributeDouble.h>
  23
  24 #include <SketchPlugin_Line.h>
  25 #include <SketchPlugin_Arc.h>
  26 #include <SketchPlugin_Circle.h>
  27 #include <SketchPlugin_ConstraintCoincidence.h>
  28 #include <SketchPlugin_ConstraintEqual.h>
  29 #include <SketchPlugin_ConstraintParallel.h>
  30 #include <SketchPlugin_ConstraintTangent.h>
  31 #include <SketchPlugin_ConstraintLength.h>
  32 #include <SketchPlugin_ConstraintMirror.h>
  33 #include <SketchPlugin_MultiRotation.h>
  34 #include <SketchPlugin_MultiTranslation.h>
  35
  36 #include <ModelAPI_Events.h>
  37 #include <SketchPlugin_Line.h>
  38 #include <SketchPlugin_Arc.h>
  39 #include <SketchPlugin_Circle.h>
  40
  41 #include <ModelGeomAlgo_Point2D.h>
  42 #include <Events_Loop.h>
  43
  44 #include <cmath>
  45
  46 //#define DEBUG_SPLIT
  47 #ifdef DEBUG_SPLIT
  48 #include <iostream>
  49 #endif
  50
  51 static const double PI = 3.141592653589793238463;
  52
  53 SketchPlugin_ConstraintSplit::SketchPlugin_ConstraintSplit()
  54 {
  55 }
  56
  57 void SketchPlugin_ConstraintSplit::initAttributes()
  58 {
  59   data()->addAttribute(SketchPlugin_Constraint::VALUE(), ModelAPI_AttributeReference::typeId());
  60   data()->addAttribute(SketchPlugin_Constraint::ENTITY_A(), ModelAPI_AttributeRefAttr::typeId());
  61   data()->addAttribute(SketchPlugin_Constraint::ENTITY_B(), ModelAPI_AttributeRefAttr::typeId());
  62 }
  63
  64 void SketchPlugin_ConstraintSplit::execute()
  65 {
  66   std::shared_ptr<ModelAPI_Data> aData = data();
  67
  68   // Check the base objects are initialized.
  69   AttributeReferencePtr aBaseObjectAttr = std::dynamic_pointer_cast<ModelAPI_AttributeReference>(
  70                                             aData->attribute(SketchPlugin_Constraint::VALUE()));
  71   if(!aBaseObjectAttr->isInitialized()) {
  72     setError("Error: Base object is not initialized.");
  73     return;
  74   }
  75   AttributePoint2DPtr aFirstPointAttrOfSplit =
  76     getPointOfRefAttr(aData->attribute(SketchPlugin_Constraint::ENTITY_A()));
  77   AttributePoint2DPtr aSecondPointAttrOfSplit =
  78     getPointOfRefAttr(aData->attribute(SketchPlugin_Constraint::ENTITY_B()));
  79   if (!aFirstPointAttrOfSplit.get() || !aFirstPointAttrOfSplit->isInitialized() ||
  80       !aSecondPointAttrOfSplit.get() || !aSecondPointAttrOfSplit->isInitialized()) {
  81     setError("Error: Sub-shape is not initialized.");
  82     return;
  83   }
  84
  85   // Wait all constraints being created, then send update events
  86   static Events_ID anUpdateEvent = Events_Loop::eventByName(EVENT_OBJECT_UPDATED);
  87   bool isUpdateFlushed = Events_Loop::loop()->isFlushed(anUpdateEvent);
  88   if (isUpdateFlushed)
  89     Events_Loop::loop()->setFlushed(anUpdateEvent, false);
  90
  91
  92   // Find feature constraints
  93   FeaturePtr aBaseFeature = ModelAPI_Feature::feature(aBaseObjectAttr->value());
  94   ResultPtr aBaseFeatureResult = getFeatureResult(aBaseFeature);
  95   std::set<FeaturePtr> aFeaturesToDelete, aFeaturesToUpdate;
  96   std::map<FeaturePtr, IdToPointPair> aTangentFeatures;
  97   std::map<FeaturePtr, IdToPointPair> aCoincidenceToFeature;
  98   getConstraints(aFeaturesToDelete, aFeaturesToUpdate, aTangentFeatures, aCoincidenceToFeature);
  99
 100   std::map<AttributePtr, std::list<AttributePtr> > aBaseRefAttributes;
 101   std::list<AttributePtr> aRefsToFeature;
 102   getRefAttributes(aBaseFeature, aBaseRefAttributes, aRefsToFeature);
 103
 104   std::map<AttributePtr, AttributePtr> aBasePointModifiedAttributes;
 105
 106 #ifdef DEBUG_SPLIT
 107   std::cout << std::endl;
 108   std::cout << "SketchPlugin_ConstraintSplit::execute()" << std::endl;
 109   std::cout << std::endl;
 110
 111   SketchPlugin_Sketch* aSketch = sketch();
 112   std::cout << "SKETCH FEATURES (before split) [" << aSketch->numberOfSubs() << "]:" << std::endl;
 113   for (int i = 0, aNbSubs = aSketch->numberOfSubs(); i < aNbSubs; i++) {
 114     std::cout << getFeatureInfo(aSketch->subFeature(i), false) << std::endl;
 115   }
 116
 117   std::cout << std::endl;
 118   std::cout << "---- IN PARAMETERS ----" << std::endl;
 119   std::cout << "Base feature:" << getFeatureInfo(aBaseFeature) << std::endl;
 120   std::cout << std::endl;
 121
 122   if (!aCoincidenceToFeature.empty()) {
 123     std::cout << "Coincidences to base feature[" <<
 124       aCoincidenceToFeature.size() << "]: " << std::endl;
 125     std::map<FeaturePtr, IdToPointPair>::const_iterator anIt = aCoincidenceToFeature.begin(),
 126                                                         aLast = aCoincidenceToFeature.end();
 127     for (int i = 1; anIt != aLast; anIt++, i++) {
 128       FeaturePtr aFeature = (*anIt).first;
 129       std::string anAttributeId = (*anIt).second.first;
 130       std::shared_ptr<GeomDataAPI_Point2D> aPointAttr = (*anIt).second.second;
 131
 132       std::cout << i << "-" << getFeatureInfo(aFeature) << std::endl;
 133       std::cout <<     " -Attribute to correct:" << anAttributeId << std::endl;
 134       std::cout <<     " -Point attribute:" <<
 135         ModelGeomAlgo_Point2D::getPointAttributeInfo(aPointAttr) << std::endl;
 136     }
 137   }
 138
 139   if (!aTangentFeatures.empty()) {
 140     std::cout << std::endl;
 141     std::cout << "Tangencies to base feature[" << aTangentFeatures.size() << "]: " << std::endl;
 142     std::map<FeaturePtr, IdToPointPair>::const_iterator anIt = aTangentFeatures.begin(),
 143                                                         aLast = aTangentFeatures.end();
 144     for (int i = 1; anIt != aLast; anIt++, i++) {
 145       FeaturePtr aFeature = (*anIt).first;
 146       std::string anAttributeId = (*anIt).second.first;
 147       std::shared_ptr<GeomDataAPI_Point2D> aPointAttr = (*anIt).second.second;
 148
 149       std::cout << i << "-" << getFeatureInfo(aFeature) << std::endl;
 150       std::cout <<     " -Attribute to correct:" << anAttributeId << std::endl;
 151       std::cout <<     " -Point attribute:" <<
 152         ModelGeomAlgo_Point2D::getPointAttributeInfo(aPointAttr) << std::endl;
 153     }
 154   }
 155
 156   std::map<AttributePtr, std::list<AttributePtr> >::const_iterator
 157     aRefIt = aBaseRefAttributes.begin(), aRefLast = aBaseRefAttributes.end();
 158   std::cout << std::endl << "References to attributes of base feature [" <<
 159     aBaseRefAttributes.size() << "]" << std::endl;
 160   for (; aRefIt != aRefLast; aRefIt++) {
 161     AttributePtr aBaseAttr = aRefIt->first;
 162     std::list<AttributePtr> aRefAttributes = aRefIt->second;
 163     std::string aRefsInfo;
 164     std::list<AttributePtr>::const_iterator aRefAttrIt = aRefAttributes.begin(),
 165                                             aRefAttrLast = aRefAttributes.end();
 166     for (; aRefAttrIt != aRefAttrLast; aRefAttrIt++) {
 167       if (!aRefsInfo.empty())
 168         aRefsInfo.append(",");
 169       AttributePtr aRAttr = *aRefAttrIt;
 170       aRefsInfo.append(aRAttr->id());
 171       FeaturePtr aRFeature = ModelAPI_Feature::feature(aRAttr->owner());
 172       aRefsInfo.append("(" + aRFeature->name() + ") ");
 173     }
 174     std::shared_ptr<GeomDataAPI_Point2D> aPointAttr =
 175       std::dynamic_pointer_cast<GeomDataAPI_Point2D>(aBaseAttr);
 176     std::cout << aPointAttr->id().c_str() <<
 177       ": " << "[" << aRefAttributes.size() << "] " << aRefsInfo << std::endl;
 178   }
 179   std::cout << std::endl;
 180   std::cout << std::endl << "References to base feature [" <<
 181     aRefsToFeature.size() << "]" << std::endl;
 182   std::list<AttributePtr>::const_iterator aRefAttrIt = aRefsToFeature.begin(),
 183                                           aRefAttrLast = aRefsToFeature.end();
 184   std::string aRefsInfo;
 185   for (; aRefAttrIt != aRefAttrLast; aRefAttrIt++) {
 186     if (!aRefsInfo.empty())
 187       aRefsInfo.append(",");
 188     AttributePtr aRAttr = *aRefAttrIt;
 189     aRefsInfo.append(aRAttr->id());
 190     FeaturePtr aRFeature = ModelAPI_Feature::feature(aRAttr->owner());
 191     aRefsInfo.append("(" + aRFeature->name() + ") ");
 192   }
 193   std::cout << "[" << aRefsToFeature.size() << "] " << aRefsInfo << std::endl;
 194
 195
 196   std::cout << std::endl;
 197   std::cout << "---- SPLIT ----" << std::endl;
 198   std::cout << std::endl;
 199 #endif
 200
 201   std::string aFeatureKind = aBaseFeature->getKind();
 202   FeaturePtr aSplitFeature, anAfterFeature;
 203   std::set<AttributePoint2DPtr> aFurtherCoincidences;
 204   std::set<FeaturePtr> aCreatedFeatures;
 205   std::set<std::pair<AttributePtr, AttributePtr>> aModifiedAttributes;
 206   if (aFeatureKind == SketchPlugin_Line::ID())
 207     splitLine(aSplitFeature, aBaseFeature, anAfterFeature, aFurtherCoincidences, aCreatedFeatures,
 208               aModifiedAttributes);
 209   else if (aFeatureKind == SketchPlugin_Arc::ID())
 210     splitArc(aSplitFeature, aBaseFeature, anAfterFeature, aFurtherCoincidences, aCreatedFeatures,
 211              aModifiedAttributes);
 212   if (aFeatureKind == SketchPlugin_Circle::ID()) {
 213     FeaturePtr aCircleFeature = aBaseFeature;
 214     splitCircle(aSplitFeature, aBaseFeature, anAfterFeature, aFurtherCoincidences,
 215       aCreatedFeatures, aModifiedAttributes);
 216
 217     updateRefFeatureConstraints(getFeatureResult(aBaseFeature), aRefsToFeature);
 218
 219     aFeaturesToDelete.insert(aCircleFeature);
 220     // as circle is removed, temporary fill this attribute*/
 221     aBaseObjectAttr->setObject(ResultPtr());
 222   }
 223
 224 #ifdef DEBUG_SPLIT
 225   std::cout << "---- OUT PARAMETERS ----" << std::endl;
 226   std::cout << "Base modified feature:" << getFeatureInfo(aBaseFeature) << std::endl;
 227   std::cout << "Split feature:" << getFeatureInfo(aSplitFeature) << std::endl;
 228   std::cout << "After feature:" << getFeatureInfo(anAfterFeature) << std::endl;
 229   std::cout << std::endl;
 230
 231   std::cout << "Created features by split:[" << aCreatedFeatures.size() << "]" << std::endl;
 232   std::set<FeaturePtr>::const_iterator aFIt = aCreatedFeatures.begin(),
 233                                        aFLast = aCreatedFeatures.end();
 234   for (; aFIt != aFLast; aFIt++) {
 235     std::cout << getFeatureInfo(*aFIt) << std::endl;
 236   }
 237   std::cout << std::endl;
 238
 239   std::cout << "Attributes for further Coincidences:" << std::endl;
 240   std::set<AttributePoint2DPtr>::const_iterator anIt = aFurtherCoincidences.begin(),
 241                                                 aLast = aFurtherCoincidences.end();
 242   for (; anIt != aLast; anIt++) {
 243     AttributePtr anAttribute = *anIt;
 244     FeaturePtr aFeature = ModelAPI_Feature::feature(anAttribute->owner());
 245     std::cout << ModelGeomAlgo_Point2D::getPointAttributeInfo(anAttribute)
 246               << " [" << getFeatureInfo(aFeature, false) << "]" << std::endl;
 247   }
 248
 249   std::cout << "Modifed attributes (constraints to attributes are moved here):" << std::endl;
 250   std::set<std::pair<AttributePtr, AttributePtr> >::const_iterator
 251     aPIt = aModifiedAttributes.begin(), aPLast = aModifiedAttributes.end();
 252   std::string aResInfo;
 253   for (; aPIt != aPLast; aPIt++) {
 254     if (!aResInfo.empty())
 255       aResInfo += "\n";
 256
 257     std::pair<AttributePtr, AttributePtr> aPair = *aPIt;
 258
 259     AttributePtr anAttr = aPair.first;
 260     aResInfo.append(anAttr->id());
 261     FeaturePtr aFeature = ModelAPI_Feature::feature(anAttr->owner());
 262     aResInfo.append("(" + aFeature->name() + ") ");
 263
 264     aResInfo.append("  - is modified to -  ");
 265
 266     anAttr = aPair.second;
 267     aResInfo.append(anAttr->id());
 268     aFeature = ModelAPI_Feature::feature(anAttr->owner());
 269     aResInfo.append("(" + aFeature->name() + ") ");
 270   }
 271   std::cout << aResInfo << std::endl;
 272 #endif
 273
 274   std::set<ResultPtr> aFeatureResults;
 275   aFeatureResults.insert(getFeatureResult(aBaseFeature));
 276   if (anAfterFeature.get() && anAfterFeature != aBaseFeature)
 277     aFeatureResults.insert(getFeatureResult(anAfterFeature));
 278
 279   // coincidence to feature
 280   updateCoincidenceConstraintsToFeature(aCoincidenceToFeature, aFurtherCoincidences,
 281                                         aFeatureResults);
 282   // tangency
 283   updateTangentConstraintsToFeature(aTangentFeatures, aFurtherCoincidences);
 284
 285   updateRefAttConstraints(aBaseRefAttributes, aModifiedAttributes);
 286
 287   // delete constraints
 288 #ifdef DEBUG_SPLIT
 289   std::cout << "remove features and references:" << std::endl;
 290   std::set<FeaturePtr>::const_iterator aDIt = aFeaturesToDelete.begin(),
 291                                        aDLast = aFeaturesToDelete.end();
 292   for (; aDIt != aDLast; aDIt++) {
 293     std::cout << getFeatureInfo(*aDIt, false) << std::endl;
 294     std::cout << std::endl;
 295   }
 296 #endif
 297   ModelAPI_Tools::removeFeaturesAndReferences(aFeaturesToDelete);
 298
 299 #ifdef DEBUG_SPLIT
 300   std::cout << "update features after split:" << std::endl;
 301   std::set<FeaturePtr>::const_iterator anUIt = aFeaturesToUpdate.begin(),
 302                                        anULast = aFeaturesToUpdate.end();
 303   for (; anUIt != anULast; anUIt++) {
 304     std::cout << getFeatureInfo(*anUIt, false) << std::endl;
 305     std::cout << std::endl;
 306   }
 307 #endif
 308   updateFeaturesAfterSplit(aFeaturesToUpdate);
 309
 310   // Send events to update the sub-features by the solver.
 311   if(isUpdateFlushed) {
 312     Events_Loop::loop()->setFlushed(anUpdateEvent, true);
 313   }
 314
 315 #ifdef DEBUG_SPLIT
 316   std::cout << "SKETCH FEATURES (after split) [" << aSketch->numberOfSubs() << "]:" << std::endl;
 317   for (int i = 0, aNbSubs = aSketch->numberOfSubs(); i < aNbSubs; i++) {
 318     std::cout << getFeatureInfo(aSketch->subFeature(i), false) << std::endl;
 319   }
 320 #endif
 321 }
 322
 323 bool SketchPlugin_ConstraintSplit::isMacro() const
 324 {
 325   return true;
 326 }
 327
 328 AISObjectPtr SketchPlugin_ConstraintSplit::getAISObject(AISObjectPtr thePrevious)
 329 {
 330   AttributeReferencePtr aBaseObjectAttr = std::dynamic_pointer_cast<ModelAPI_AttributeReference>(
 331                                            data()->attribute(SketchPlugin_Constraint::VALUE()));
 332   FeaturePtr aBaseFeature = ModelAPI_Feature::feature(aBaseObjectAttr->value());
 333
 334   AttributePoint2DPtr aFirstPointAttrOfSplit = getPointOfRefAttr(
 335                                         data()->attribute(SketchPlugin_Constraint::ENTITY_A()));
 336   AttributePoint2DPtr aSecondPointAttrOfSplit = getPointOfRefAttr(
 337                                         data()->attribute(SketchPlugin_Constraint::ENTITY_B()));
 338
 339   if (aBaseObjectAttr->isInitialized() && aBaseFeature.get() &&
 340       aFirstPointAttrOfSplit->isInitialized() &&
 341       aSecondPointAttrOfSplit->isInitialized()) {
 342
 343     ResultPtr aResult = getFeatureResult(aBaseFeature);
 344     GeomShapePtr aBaseShape = aResult->shape();
 345     std::list<std::shared_ptr<GeomAPI_Pnt> > aPoints;
 346
 347     std::shared_ptr<GeomAPI_Pnt2d> aStartPnt2d = aFirstPointAttrOfSplit->pnt();
 348     std::shared_ptr<GeomAPI_Pnt> aStartPoint = sketch()->to3D(aStartPnt2d->x(), aStartPnt2d->y());
 349     aPoints.push_back(aStartPoint);
 350
 351     std::shared_ptr<GeomAPI_Pnt2d> aSecondPnt2d = aSecondPointAttrOfSplit->pnt();
 352     std::shared_ptr<GeomAPI_Pnt> aSecondPoint =
 353       sketch()->to3D(aSecondPnt2d->x(), aSecondPnt2d->y());
 354     aPoints.push_back(aSecondPoint);
 355
 356     std::set<std::shared_ptr<GeomAPI_Shape> > aSplitShapes;
 357
 358     GeomAlgoAPI_ShapeTools::splitShape(aBaseShape, aPoints, aSplitShapes);
 359     std::shared_ptr<GeomAPI_Shape> aShape =
 360       GeomAlgoAPI_ShapeTools::findShape(aPoints, aSplitShapes);
 361
 362     AISObjectPtr anAIS = thePrevious;
 363     if (aShape) {
 364       if (!anAIS)
 365         anAIS = AISObjectPtr(new GeomAPI_AISObject);
 366       anAIS->createShape(aShape);
 367       anAIS->setWidth(5);
 368       std::vector<int> aColor;
 369       aColor = Config_PropManager::color("Visualization", "sketch_entity_color",
 370                                           SKETCH_ENTITY_COLOR);
 371      anAIS->setColor(aColor[0], aColor[1], aColor[2]);
 372     }
 373     return anAIS;
 374   }
 375   return AISObjectPtr();
 376 }
 377
 378 std::shared_ptr<GeomDataAPI_Point2D> SketchPlugin_ConstraintSplit::getPointOfRefAttr(
 379                                                       const AttributePtr& theAttribute)
 380 {
 381   AttributePoint2DPtr aPointAttribute;
 382
 383   if (theAttribute->attributeType() == ModelAPI_AttributeRefAttr::typeId()) {
 384     AttributeRefAttrPtr aRefAttr =
 385       std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(theAttribute);
 386     if (aRefAttr.get() && aRefAttr->isInitialized()) {
 387       AttributePtr anAttribute = aRefAttr->attr();
 388       if (anAttribute.get() && anAttribute->attributeType() == GeomDataAPI_Point2D::typeId())
 389         aPointAttribute = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(anAttribute);
 390     }
 391   }
 392   return aPointAttribute;
 393 }
 394
 395 void SketchPlugin_ConstraintSplit::getFeaturePoints(AttributePoint2DPtr& theStartPointAttr,
 396                                                     AttributePoint2DPtr& theEndPointAttr)
 397 {
 398   AttributePoint2DPtr aPointAttribute;
 399
 400   AttributeReferencePtr aBaseObjectAttr = std::dynamic_pointer_cast<ModelAPI_AttributeReference>(
 401                                            data()->attribute(SketchPlugin_Constraint::VALUE()));
 402   FeaturePtr aBaseFeature = ModelAPI_Feature::feature(aBaseObjectAttr->value());
 403
 404   std::string aFeatureKind = aBaseFeature->getKind();
 405   std::string aStartAttributeName, anEndAttributeName;
 406   if (aFeatureKind == SketchPlugin_Line::ID()) {
 407     aStartAttributeName = SketchPlugin_Line::START_ID();
 408     anEndAttributeName = SketchPlugin_Line::END_ID();
 409   }
 410   else if (aFeatureKind == SketchPlugin_Arc::ID()) {
 411     aStartAttributeName = SketchPlugin_Arc::START_ID();
 412     anEndAttributeName = SketchPlugin_Arc::END_ID();
 413   }
 414   if (!aStartAttributeName.empty() && !anEndAttributeName.empty()) {
 415     theStartPointAttr = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
 416                                          aBaseFeature->attribute(aStartAttributeName));
 417     theEndPointAttr = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
 418                                          aBaseFeature->attribute(anEndAttributeName));
 419   }
 420 }
 421
 422 void SketchPlugin_ConstraintSplit::getConstraints(std::set<FeaturePtr>& theFeaturesToDelete,
 423                                       std::set<FeaturePtr>& theFeaturesToUpdate,
 424                                       std::map<FeaturePtr, IdToPointPair>& theTangentFeatures,
 425                                       std::map<FeaturePtr, IdToPointPair>& theCoincidenceToFeature)
 426 {
 427   std::shared_ptr<ModelAPI_Data> aData = data();
 428
 429   // Check the base objects are initialized.
 430   AttributeReferencePtr aBaseObjectAttr = std::dynamic_pointer_cast<ModelAPI_AttributeReference>(
 431                                             aData->attribute(SketchPlugin_Constraint::VALUE()));
 432   FeaturePtr aBaseFeature = ModelAPI_Feature::feature(aBaseObjectAttr->value());
 433   ResultPtr aBaseFeatureResult = getFeatureResult(aBaseFeature);
 434
 435   std::set<AttributePtr> aRefsList = aBaseFeatureResult->data()->refsToMe();
 436   std::set<AttributePtr> aFRefsList = aBaseFeature->data()->refsToMe();
 437   aRefsList.insert(aFRefsList.begin(), aFRefsList.end());
 438
 439   std::set<AttributePtr>::const_iterator aIt;
 440   for (aIt = aRefsList.cbegin(); aIt != aRefsList.cend(); ++aIt) {
 441     std::shared_ptr<ModelAPI_Attribute> aAttr = (*aIt);
 442     FeaturePtr aRefFeature = std::dynamic_pointer_cast<ModelAPI_Feature>(aAttr->owner());
 443     std::string aRefFeatureKind = aRefFeature->getKind();
 444     if (aRefFeatureKind == SketchPlugin_ConstraintMirror::ID() ||
 445         aRefFeatureKind == SketchPlugin_MultiRotation::ID() ||
 446         aRefFeatureKind == SketchPlugin_MultiTranslation::ID())
 447       theFeaturesToDelete.insert(aRefFeature);
 448     else if (aRefFeatureKind == SketchPlugin_ConstraintLength::ID())
 449       theFeaturesToUpdate.insert(aRefFeature);
 450     else if (aRefFeatureKind == SketchPlugin_ConstraintTangent::ID()) {
 451       if (aBaseFeature->getKind() == SketchPlugin_Circle::ID()) /// TEMPORARY limitaion
 452         /// until tangency between arc and line is implemented
 453         theFeaturesToDelete.insert(aRefFeature);
 454       else {
 455         std::string anAttributeToBeModified;
 456         AttributePoint2DPtr aTangentPoint;
 457         ObjectPtr aResult1 = aRefFeature->refattr(SketchPlugin_Constraint::ENTITY_A())->object();
 458         ObjectPtr aResult2 = aRefFeature->refattr(SketchPlugin_Constraint::ENTITY_B())->object();
 459         if (aResult1.get() && aResult2.get()) {
 460           FeaturePtr aCoincidenceFeature =
 461             SketchPlugin_ConstraintCoincidence::findCoincidenceFeature
 462                                                        (ModelAPI_Feature::feature(aResult1),
 463                                                         ModelAPI_Feature::feature(aResult2));
 464           // get the point not lying on the splitting feature
 465           for (int i = 0; i < CONSTRAINT_ATTR_SIZE; ++i) {
 466             AttributeRefAttrPtr aRefAttr = aCoincidenceFeature->refattr(ATTRIBUTE(i));
 467             if (!aRefAttr || aRefAttr->isObject())
 468               continue;
 469             AttributePoint2DPtr aPoint =
 470                 std::dynamic_pointer_cast<GeomDataAPI_Point2D>(aRefAttr->attr());
 471             if (!aPoint)
 472               continue;
 473             if (aPoint->owner() != aBaseFeature) {
 474               aTangentPoint = aPoint;
 475               break;
 476             }
 477           }
 478         }
 479         if (aTangentPoint.get()) {
 480           FeaturePtr aFeature1 = ModelAPI_Feature::feature(aResult1);
 481           std::string anAttributeToBeModified = aFeature1 == aBaseFeature
 482                        ? SketchPlugin_Constraint::ENTITY_A() : SketchPlugin_Constraint::ENTITY_B();
 483           theTangentFeatures[aRefFeature] = std::make_pair(anAttributeToBeModified, aTangentPoint);
 484         }
 485         else /// there is not coincident point between tangent constraint
 486           theFeaturesToDelete.insert(aRefFeature);
 487       }
 488     }
 489     else if (aRefFeatureKind == SketchPlugin_ConstraintCoincidence::ID()) {
 490       std::string anAttributeToBeModified;
 491       AttributePoint2DPtr aCoincidentPoint;
 492       AttributeRefAttrPtr anAttrA = aRefFeature->refattr(SketchPlugin_Constraint::ENTITY_A());
 493       AttributeRefAttrPtr anAttrB = aRefFeature->refattr(SketchPlugin_Constraint::ENTITY_B());
 494       bool isToFeature = false;
 495       if (anAttrA->isObject() || anAttrB->isObject()) { /// coincidence to base feature
 496         FeaturePtr aFeature = anAttrA->isObject() ? ModelAPI_Feature::feature(anAttrA->object())
 497                                                   : FeaturePtr();
 498         isToFeature = aFeature.get() && aFeature == aBaseFeature;
 499         anAttributeToBeModified = anAttrA->id();
 500         if (!isToFeature) {
 501           aFeature = anAttrB->isObject() ? ModelAPI_Feature::feature(anAttrB->object())
 502                                          : FeaturePtr();
 503           isToFeature = aFeature.get() && aFeature == aBaseFeature;
 504           anAttributeToBeModified = anAttrB->id();
 505         }
 506         if (isToFeature)
 507           aCoincidentPoint = SketchPlugin_ConstraintCoincidence::getPoint(aRefFeature);
 508       }
 509       if (!isToFeature) { /// coincidence to point on base feature
 510         AttributePtr anAttribute;
 511
 512         if (!anAttrA->isObject()) {
 513           AttributePtr aCurAttribute = anAttrA->attr();
 514           if (aCurAttribute.get()) {
 515             FeaturePtr aCurFeature = ModelAPI_Feature::feature(aCurAttribute->owner());
 516             if (aCurFeature.get() && aCurFeature == aBaseFeature) {
 517               anAttribute = anAttrB->attr();
 518               anAttributeToBeModified = anAttrA->id();
 519             }
 520           }
 521         }
 522         if (!anAttribute.get() && !anAttrB->isObject()) {
 523           AttributePtr aCurAttribute = anAttrB->attr();
 524           if (aCurAttribute.get()) {
 525             FeaturePtr aCurFeature = ModelAPI_Feature::feature(aCurAttribute->owner());
 526             if (aCurFeature.get() && aCurFeature == aBaseFeature) {
 527               anAttribute = anAttrA->attr();
 528               anAttributeToBeModified = anAttrB->id();
 529             }
 530           }
 531         }
 532         if (anAttribute.get())
 533           aCoincidentPoint = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(anAttribute);
 534       }
 535       if (aCoincidentPoint.get()) {
 536         if (isToFeature)
 537           theCoincidenceToFeature[aRefFeature] = std::make_pair(anAttributeToBeModified,
 538                                                                 aCoincidentPoint);
 539       }
 540       else
 541         theFeaturesToDelete.insert(aRefFeature); /// this case should not happen
 542     }
 543   }
 544 }
 545
 546 void SketchPlugin_ConstraintSplit::getRefAttributes(const FeaturePtr& theFeature,
 547                                     std::map<AttributePtr, std::list<AttributePtr> >& theRefs,
 548                                     std::list<AttributePtr>& theRefsToFeature)
 549 {
 550   theRefs.clear();
 551
 552   std::list<AttributePtr> aPointAttributes =
 553     theFeature->data()->attributes(GeomDataAPI_Point2D::typeId());
 554   std::set<AttributePtr> aPointAttributesSet;
 555
 556   std::list<AttributePtr>::const_iterator aPIt =
 557     aPointAttributes.begin(), aPLast = aPointAttributes.end();
 558   for (; aPIt != aPLast; aPIt++)
 559     aPointAttributesSet.insert(*aPIt);
 560
 561   std::set<AttributePtr> aRefsAttributes = getFeatureResult(theFeature)->data()->refsToMe();
 562   std::set<AttributePtr> aFRefsList = theFeature->data()->refsToMe();
 563   aRefsAttributes.insert(aFRefsList.begin(), aFRefsList.end());
 564
 565   std::set<AttributePtr>::const_iterator aIt;
 566   for (aIt = aRefsAttributes.cbegin(); aIt != aRefsAttributes.cend(); ++aIt) {
 567     AttributePtr anAttr = (*aIt);
 568     FeaturePtr anAttrFeature = ModelAPI_Feature::feature(anAttr->owner());
 569     if (anAttrFeature.get() != this &&
 570         anAttr.get() && anAttr->attributeType() == ModelAPI_AttributeRefAttr::typeId()) {
 571       AttributeRefAttrPtr aRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(anAttr);
 572       if (!aRefAttr->isObject()) { /// find attributes referenced to feature point attributes
 573         AttributePtr anAttrInRef = aRefAttr->attr();
 574         if (anAttrInRef.get() &&
 575             aPointAttributesSet.find(anAttrInRef) != aPointAttributesSet.end()) {
 576           if (theRefs.find(anAttrInRef) != theRefs.end())
 577             theRefs[anAttrInRef].push_back(aRefAttr);
 578           else {
 579             std::list<AttributePtr> anAttrList;
 580             anAttrList.push_back(aRefAttr);
 581             theRefs[anAttrInRef] = anAttrList;
 582           }
 583         }
 584       }
 585       else { /// find attributes referenced to feature itself
 586         theRefsToFeature.push_back(anAttr);
 587       }
 588     }
 589   }
 590 }
 591
 592 void SketchPlugin_ConstraintSplit::updateCoincidenceConstraintsToFeature(
 593       const std::map<std::shared_ptr<ModelAPI_Feature>, IdToPointPair>& theCoincidenceToFeature,
 594       const std::set<std::shared_ptr<GeomDataAPI_Point2D> >& theFurtherCoincidences,
 595       const std::set<ResultPtr>& theFeatureResults)
 596 {
 597   if (theCoincidenceToFeature.empty())
 598     return;
 599
 600   std::map<FeaturePtr, IdToPointPair>::const_iterator aCIt = theCoincidenceToFeature.begin(),
 601                                                             aCLast = theCoincidenceToFeature.end();
 602 #ifdef DEBUG_SPLIT
 603   std::cout << std::endl;
 604   std::cout << "Coincidences to feature(modified):"<< std::endl;
 605 #endif
 606   for (; aCIt != aCLast; aCIt++) {
 607     FeaturePtr aCoincFeature = aCIt->first;
 608     std::string anAttributeId = aCIt->second.first;
 609     AttributePoint2DPtr aCoincPoint = aCIt->second.second;
 610     std::set<AttributePoint2DPtr>::const_iterator aFCIt = theFurtherCoincidences.begin(),
 611                                                   aFCLast = theFurtherCoincidences.end();
 612     std::shared_ptr<GeomAPI_Pnt2d> aCoincPnt = aCoincPoint->pnt();
 613     AttributePoint2DPtr aFeaturePointAttribute;
 614     for (; aFCIt != aFCLast && !aFeaturePointAttribute.get(); aFCIt++) {
 615       AttributePoint2DPtr aFCAttribute = *aFCIt;
 616       if (aCoincPnt->isEqual(aFCAttribute->pnt()))
 617         aFeaturePointAttribute = aFCAttribute;
 618     }
 619     if (aFeaturePointAttribute.get()) {
 620       aCoincFeature->refattr(anAttributeId)->setObject(ResultPtr());
 621       aCoincFeature->refattr(anAttributeId)->setAttr(aFeaturePointAttribute);
 622     }
 623     else {
 624       /// find feature by shape intersected the point
 625       ResultPtr aResultForCoincidence = *(theFeatureResults.begin());
 626
 627       if (theFeatureResults.size() > 1) { // try to find point on additional feature
 628         ResultPtr anAddtionalResult = *(theFeatureResults.begin()++);
 629         GeomShapePtr aShape = anAddtionalResult->shape();
 630
 631         std::shared_ptr<GeomAPI_Pnt2d> aPnt2d = aCoincPoint->pnt();
 632         std::shared_ptr<GeomAPI_Pnt> aPoint = sketch()->to3D(aPnt2d->x(), aPnt2d->y());
 633
 634         std::shared_ptr<GeomAPI_Pnt> aProjectedPoint;
 635         if (ModelGeomAlgo_Point2D::isPointOnEdge(aShape, aPoint, aProjectedPoint))
 636           aResultForCoincidence = anAddtionalResult;
 637       }
 638       aCoincFeature->refattr(anAttributeId)->setObject(aResultForCoincidence);
 639     }
 640 #ifdef DEBUG_SPLIT
 641   std::cout << " -" << getFeatureInfo(aCoincFeature) << std::endl;
 642 #endif
 643   }
 644 }
 645
 646 void SketchPlugin_ConstraintSplit::updateTangentConstraintsToFeature(
 647       const std::map<std::shared_ptr<ModelAPI_Feature>, IdToPointPair>& theTangentFeatures,
 648       const std::set<std::shared_ptr<GeomDataAPI_Point2D> >& theFurtherCoincidences)
 649 {
 650   if (theTangentFeatures.empty())
 651     return;
 652
 653   std::map<FeaturePtr, IdToPointPair>::const_iterator aTIt = theTangentFeatures.begin(),
 654                                                       aTLast = theTangentFeatures.end();
 655 #ifdef DEBUG_SPLIT
 656   std::cout << std::endl;
 657   std::cout << "Tangencies to feature(modified):"<< std::endl;
 658 #endif
 659   for (; aTIt != aTLast; aTIt++) {
 660     FeaturePtr aTangentFeature = aTIt->first;
 661     std::string anAttributeId = aTIt->second.first;
 662     AttributePoint2DPtr aTangentPoint = aTIt->second.second;
 663     std::set<AttributePoint2DPtr>::const_iterator aFCIt = theFurtherCoincidences.begin(),
 664                                                   aFCLast = theFurtherCoincidences.end();
 665     std::shared_ptr<GeomAPI_Pnt2d> aCoincPnt = aTangentPoint->pnt();
 666     AttributePoint2DPtr aFeaturePointAttribute;
 667     /// here we rely on created coincidence between further coincidence point and tangent result
 668     for (; aFCIt != aFCLast && !aFeaturePointAttribute.get(); aFCIt++) {
 669       AttributePoint2DPtr aFCAttribute = *aFCIt;
 670       if (aCoincPnt->isEqual(aFCAttribute->pnt()))
 671         aFeaturePointAttribute = aFCAttribute;
 672     }
 673     if (aFeaturePointAttribute.get()) {
 674       FeaturePtr aFeature =
 675         std::dynamic_pointer_cast<ModelAPI_Feature>(aFeaturePointAttribute->owner());
 676       aTangentFeature->refattr(anAttributeId)->setObject(getFeatureResult(aFeature));
 677     }
 678 #ifdef DEBUG_SPLIT
 679   std::cout << " -" << getFeatureInfo(aTangentFeature) << std::endl;
 680 #endif
 681   }
 682 }
 683
 684 void SketchPlugin_ConstraintSplit::updateRefFeatureConstraints(
 685                                                   const ResultPtr& theFeatureBaseResult,
 686                                                   const std::list<AttributePtr>& theRefsToFeature)
 687 {
 688   std::list<AttributePtr>::const_iterator anIt = theRefsToFeature.begin(),
 689                                           aLast = theRefsToFeature.end();
 690   for (; anIt != aLast; anIt++) {
 691     AttributeRefAttrPtr aRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(*anIt);
 692     if (aRefAttr.get())
 693       aRefAttr->setObject(theFeatureBaseResult);
 694   }
 695 }
 696
 697 void SketchPlugin_ConstraintSplit::updateRefAttConstraints(
 698                     const std::map<AttributePtr, std::list<AttributePtr> >& theBaseRefAttributes,
 699                     const std::set<std::pair<AttributePtr, AttributePtr> >& theModifiedAttributes)
 700 {
 701 #ifdef DEBUG_SPLIT
 702   std::cout << "SketchPlugin_ConstraintSplit::updateRefAttConstraints" << std::endl;
 703 #endif
 704
 705   std::set<std::pair<AttributePtr, AttributePtr> >::const_iterator
 706     anIt = theModifiedAttributes.begin(),  aLast = theModifiedAttributes.end();
 707   for (; anIt != aLast; anIt++) {
 708     AttributePtr anAttribute = anIt->first;
 709
 710     /// not found in references
 711     if (theBaseRefAttributes.find(anAttribute) == theBaseRefAttributes.end())
 712       continue;
 713     std::list<AttributePtr> aRefAttributes = theBaseRefAttributes.at(anAttribute);
 714     std::list<AttributePtr>::const_iterator aRefIt = aRefAttributes.begin(),
 715                                             aRLast = aRefAttributes.end();
 716
 717     AttributePtr aNewAttribute = anIt->second;
 718     for (; aRefIt != aRLast; aRefIt++) {
 719       AttributeRefAttrPtr aRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(*aRefIt);
 720       if (aRefAttr.get()) {
 721         aRefAttr->setAttr(aNewAttribute);
 722 #ifdef DEBUG_SPLIT
 723         FeaturePtr aFeature = ModelAPI_Feature::feature(aRefAttr->owner());
 724         std::cout << " -" << getFeatureInfo(aFeature) << std::endl;
 725 #endif
 726       }
 727     }
 728   }
 729 }
 730
 731 void SketchPlugin_ConstraintSplit::splitLine(FeaturePtr& theSplitFeature,
 732                                              FeaturePtr& theBaseFeatureModified,
 733                                              FeaturePtr& theAfterFeature,
 734                                              std::set<AttributePoint2DPtr>& thePoints,
 735                                              std::set<FeaturePtr>& theCreatedFeatures,
 736                  std::set<std::pair<AttributePtr, AttributePtr>>& theModifiedAttributes)
 737 {
 738   std::set<FeaturePtr> aCreatedFeatures;
 739   FeaturePtr aConstraintFeature;
 740   theBaseFeatureModified = FeaturePtr(); // it will contain modified base feature
 741
 742   SketchPlugin_Sketch* aSketch = sketch();
 743   if (!aSketch)
 744     return;
 745
 746   AttributeReferencePtr aBaseObjectAttr = std::dynamic_pointer_cast<ModelAPI_AttributeReference>(
 747                                            data()->attribute(SketchPlugin_Constraint::VALUE()));
 748   FeaturePtr aBaseFeature = ModelAPI_Feature::feature(aBaseObjectAttr->value());
 749   std::string aFeatureKind = aBaseFeature->getKind();
 750   if (aFeatureKind != SketchPlugin_Line::ID())
 751     return;
 752
 753   AttributePoint2DPtr aFirstPointAttrOfSplit =
 754     getPointOfRefAttr(data()->attribute(SketchPlugin_Constraint::ENTITY_A()));
 755   AttributePoint2DPtr aSecondPointAttrOfSplit =
 756     getPointOfRefAttr(data()->attribute(SketchPlugin_Constraint::ENTITY_B()));
 757   AttributePoint2DPtr aStartPointAttrOfBase, anEndPointAttrOfBase;
 758   getFeaturePoints(aStartPointAttrOfBase, anEndPointAttrOfBase);
 759   if (!aStartPointAttrOfBase.get() && !anEndPointAttrOfBase.get()) {
 760     setError("Error: Feature has no start and end points.");
 761     return;
 762   }
 763
 764   arrangePointsOnLine(aStartPointAttrOfBase, anEndPointAttrOfBase,
 765                       aFirstPointAttrOfSplit, aSecondPointAttrOfSplit);
 766
 767 #ifdef DEBUG_SPLIT
 768   std::cout << "Arranged points (to build split between 1st and 2nd points:" << std::endl;
 769   std::cout << "Start point: " <<
 770     ModelGeomAlgo_Point2D::getPointAttributeInfo(aStartPointAttrOfBase) << std::endl;
 771   std::cout << "1st point:   " <<
 772     ModelGeomAlgo_Point2D::getPointAttributeInfo(aFirstPointAttrOfSplit) << std::endl;
 773   std::cout << "2nd point:   " <<
 774     ModelGeomAlgo_Point2D::getPointAttributeInfo(aSecondPointAttrOfSplit) << std::endl;
 775   std::cout << "End point:   " <<
 776     ModelGeomAlgo_Point2D::getPointAttributeInfo(anEndPointAttrOfBase) << std::endl;
 777 #endif
 778
 779   /// create a split feature
 780   theSplitFeature =
 781     createLineFeature(aBaseFeature, aFirstPointAttrOfSplit, aSecondPointAttrOfSplit);
 782   theCreatedFeatures.insert(theSplitFeature);
 783
 784   // before split feature
 785   if (aStartPointAttrOfBase->pnt()->isEqual(aFirstPointAttrOfSplit->pnt())) {
 786     theModifiedAttributes.insert(std::make_pair(aStartPointAttrOfBase,
 787                                         theSplitFeature->attribute(SketchPlugin_Line::START_ID())));
 788   }
 789   else {
 790     theBaseFeatureModified = aBaseFeature; ///< use base feature to store all constraints here
 791     /// move end arc point to start of split
 792   }
 793
 794   // after split feature
 795   if (!aSecondPointAttrOfSplit->pnt()->isEqual(anEndPointAttrOfBase->pnt())) {
 796     FeaturePtr aFeature;
 797     if (!theBaseFeatureModified.get()) {
 798       aFeature = aBaseFeature; ///< use base feature to store all constraints here
 799       fillAttribute(aFeature->attribute(SketchPlugin_Line::START_ID()), aSecondPointAttrOfSplit);
 800       aFeature->execute(); // to update result
 801     }
 802     else {
 803       aFeature = createLineFeature(aBaseFeature, aSecondPointAttrOfSplit, anEndPointAttrOfBase);
 804       theCreatedFeatures.insert(aFeature);
 805       theModifiedAttributes.insert(std::make_pair(anEndPointAttrOfBase,
 806                                              aFeature->attribute(SketchPlugin_Line::END_ID())));
 807     }
 808     aConstraintFeature = createConstraint(SketchPlugin_ConstraintCoincidence::ID(),
 809                      theSplitFeature->attribute(SketchPlugin_Line::END_ID()),
 810                      aFeature->attribute(SketchPlugin_Line::START_ID()));
 811     theCreatedFeatures.insert(aConstraintFeature);
 812
 813     thePoints.insert(std::dynamic_pointer_cast<GeomDataAPI_Point2D>
 814                                 (aFeature->attribute(SketchPlugin_Line::START_ID())));
 815     thePoints.insert(std::dynamic_pointer_cast<GeomDataAPI_Point2D>
 816                                 (aFeature->attribute(SketchPlugin_Line::END_ID())));
 817
 818     if (!theBaseFeatureModified.get())
 819       theBaseFeatureModified = aFeature;
 820     else
 821       theAfterFeature = aFeature;
 822   }
 823   else {
 824     thePoints.insert(std::dynamic_pointer_cast<GeomDataAPI_Point2D>
 825                                   (theSplitFeature->attribute(SketchPlugin_Line::END_ID())));
 826     theModifiedAttributes.insert(std::make_pair(anEndPointAttrOfBase,
 827                                    theSplitFeature->attribute(SketchPlugin_Line::END_ID())));
 828   }
 829   // base split, that is defined before split feature should be changed at end
 830   // (after the after feature creation). Otherwise modified value will be used in after feature
 831   // before split feature
 832   if (!aStartPointAttrOfBase->pnt()->isEqual(aFirstPointAttrOfSplit->pnt())) {
 833     /// move end arc point to start of split
 834     fillAttribute(theBaseFeatureModified->attribute(SketchPlugin_Line::END_ID()),
 835                                                     aFirstPointAttrOfSplit);
 836     theBaseFeatureModified->execute(); // to update result
 837     aConstraintFeature = createConstraint(SketchPlugin_ConstraintCoincidence::ID(),
 838                      theBaseFeatureModified->attribute(SketchPlugin_Line::END_ID()),
 839                      theSplitFeature->attribute(SketchPlugin_Line::START_ID()));
 840     theCreatedFeatures.insert(aConstraintFeature);
 841
 842     thePoints.insert(std::dynamic_pointer_cast<GeomDataAPI_Point2D>
 843                              (theBaseFeatureModified->attribute(SketchPlugin_Line::START_ID())));
 844     thePoints.insert(std::dynamic_pointer_cast<GeomDataAPI_Point2D>
 845                                (theBaseFeatureModified->attribute(SketchPlugin_Line::END_ID())));
 846   }
 847   else
 848     thePoints.insert(std::dynamic_pointer_cast<GeomDataAPI_Point2D>
 849                                        (theSplitFeature->attribute(SketchPlugin_Line::START_ID())));
 850
 851   // additional constraints between split and base features
 852   aConstraintFeature = createConstraintForObjects(SketchPlugin_ConstraintParallel::ID(),
 853                                                        getFeatureResult(aBaseFeature),
 854                                                        getFeatureResult(theSplitFeature));
 855   theCreatedFeatures.insert(aConstraintFeature);
 856   if (theAfterFeature.get()) {
 857     aConstraintFeature = createConstraintForObjects(SketchPlugin_ConstraintParallel::ID(),
 858                                                     getFeatureResult(aBaseFeature),
 859                                                     getFeatureResult(theAfterFeature));
 860     theCreatedFeatures.insert(aConstraintFeature);
 861   }
 862 }
 863
 864 void SketchPlugin_ConstraintSplit::splitArc(FeaturePtr& theSplitFeature,
 865                                             FeaturePtr& theBaseFeatureModified,
 866                                             FeaturePtr& theAfterFeature,
 867                                             std::set<AttributePoint2DPtr>& thePoints,
 868                                             std::set<FeaturePtr>& theCreatedFeatures,
 869                  std::set<std::pair<AttributePtr, AttributePtr>>& theModifiedAttributes)
 870 {
 871   std::set<FeaturePtr> aCreatedFeatures;
 872   FeaturePtr aConstraintFeature;
 873   theBaseFeatureModified = FeaturePtr(); // it will contain modified base feature
 874
 875   SketchPlugin_Sketch* aSketch = sketch();
 876   if (!aSketch)
 877     return;
 878
 879   AttributeReferencePtr aBaseObjectAttr = std::dynamic_pointer_cast<ModelAPI_AttributeReference>(
 880                                            data()->attribute(SketchPlugin_Constraint::VALUE()));
 881   FeaturePtr aBaseFeature = ModelAPI_Feature::feature(aBaseObjectAttr->value());
 882   std::string aFeatureKind = aBaseFeature->getKind();
 883   if (aFeatureKind != SketchPlugin_Arc::ID())
 884     return;
 885
 886   AttributePoint2DPtr aFirstPointAttrOfSplit =
 887     getPointOfRefAttr(data()->attribute(SketchPlugin_Constraint::ENTITY_A()));
 888   AttributePoint2DPtr aSecondPointAttrOfSplit =
 889     getPointOfRefAttr(data()->attribute(SketchPlugin_Constraint::ENTITY_B()));
 890   AttributePoint2DPtr aStartPointAttrOfBase, anEndPointAttrOfBase;
 891   getFeaturePoints(aStartPointAttrOfBase, anEndPointAttrOfBase);
 892   if (!aStartPointAttrOfBase.get() && !anEndPointAttrOfBase.get()) {
 893     setError("Error: Feature has no start and end points.");
 894     return;
 895   }
 896
 897   // manually change type of arc to avoid incorrect self-constrainting of the tangent arc
 898   aBaseFeature->string(SketchPlugin_Arc::ARC_TYPE())->setValue(
 899       SketchPlugin_Arc::ARC_TYPE_CENTER_START_END());
 900
 901   arrangePointsOnArc(aBaseFeature, aStartPointAttrOfBase, anEndPointAttrOfBase,
 902                      aFirstPointAttrOfSplit, aSecondPointAttrOfSplit);
 903 #ifdef DEBUG_SPLIT
 904   std::cout << "Arranged points (to build split between 1st and 2nd points:" << std::endl;
 905   std::cout << "Start point: " <<
 906     ModelGeomAlgo_Point2D::getPointAttributeInfo(aStartPointAttrOfBase) << std::endl;
 907   std::cout << "1st point:   " <<
 908     ModelGeomAlgo_Point2D::getPointAttributeInfo(aFirstPointAttrOfSplit) << std::endl;
 909   std::cout << "2nd point:   " <<
 910     ModelGeomAlgo_Point2D::getPointAttributeInfo(aSecondPointAttrOfSplit) << std::endl;
 911   std::cout << "End point:   " <<
 912     ModelGeomAlgo_Point2D::getPointAttributeInfo(anEndPointAttrOfBase) << std::endl;
 913 #endif
 914
 915   /// split feature
 916   theSplitFeature = createArcFeature(aBaseFeature, aFirstPointAttrOfSplit, aSecondPointAttrOfSplit);
 917   theCreatedFeatures.insert(theSplitFeature);
 918
 919   // before split feature
 920   if (aStartPointAttrOfBase->pnt()->isEqual(aFirstPointAttrOfSplit->pnt())) {
 921     theModifiedAttributes.insert(std::make_pair(aStartPointAttrOfBase,
 922                                   theSplitFeature->attribute(SketchPlugin_Arc::START_ID())));
 923   }
 924   else {
 925     theBaseFeatureModified = aBaseFeature; ///< use base feature to store all constraints here
 926     /// move end arc point to start of split
 927   }
 928
 929   // after split feature
 930   if (!aSecondPointAttrOfSplit->pnt()->isEqual(anEndPointAttrOfBase->pnt())) {
 931     FeaturePtr aFeature;
 932     if (!theBaseFeatureModified.get()) {
 933       aFeature = aBaseFeature; ///< use base feature to store all constraints here
 934       fillAttribute(aFeature->attribute(SketchPlugin_Arc::START_ID()), aSecondPointAttrOfSplit);
 935       aFeature->execute(); // to update result
 936     }
 937     else {
 938       aFeature = createArcFeature(aBaseFeature, aSecondPointAttrOfSplit, anEndPointAttrOfBase);
 939       theCreatedFeatures.insert(aFeature);
 940       theModifiedAttributes.insert(std::make_pair(anEndPointAttrOfBase,
 941                                                   aFeature->attribute(SketchPlugin_Arc::END_ID())));
 942     }
 943     aConstraintFeature = createConstraint(SketchPlugin_ConstraintCoincidence::ID(),
 944                      theSplitFeature->attribute(SketchPlugin_Arc::END_ID()),
 945                      aFeature->attribute(SketchPlugin_Arc::START_ID()));
 946     theCreatedFeatures.insert(aConstraintFeature);
 947
 948     thePoints.insert(std::dynamic_pointer_cast<GeomDataAPI_Point2D>
 949                                 (aFeature->attribute(SketchPlugin_Arc::START_ID())));
 950     thePoints.insert(std::dynamic_pointer_cast<GeomDataAPI_Point2D>
 951                                 (aFeature->attribute(SketchPlugin_Arc::END_ID())));
 952
 953     if (!theBaseFeatureModified.get())
 954       theBaseFeatureModified = aFeature;
 955     else
 956       theAfterFeature = aFeature;
 957   }
 958   else {
 959     thePoints.insert(std::dynamic_pointer_cast<GeomDataAPI_Point2D>
 960                                   (theSplitFeature->attribute(SketchPlugin_Arc::END_ID())));
 961     theModifiedAttributes.insert(std::make_pair(anEndPointAttrOfBase,
 962                                    theSplitFeature->attribute(SketchPlugin_Arc::END_ID())));
 963   }
 964   // base split, that is defined before split feature should be changed at end
 965   // (after the after feature creation). Otherwise modified value will be used in after feature
 966   // before split feature
 967   if (!aStartPointAttrOfBase->pnt()->isEqual(aFirstPointAttrOfSplit->pnt())) {
 968     /// move end arc point to start of split
 969     fillAttribute(theBaseFeatureModified->attribute(SketchPlugin_Arc::END_ID()),
 970                                                     aFirstPointAttrOfSplit);
 971     theBaseFeatureModified->execute(); // to update result
 972     aConstraintFeature = createConstraint(SketchPlugin_ConstraintCoincidence::ID(),
 973                      theBaseFeatureModified->attribute(SketchPlugin_Arc::END_ID()),
 974                      theSplitFeature->attribute(SketchPlugin_Arc::START_ID()));
 975     theCreatedFeatures.insert(aConstraintFeature);
 976
 977     thePoints.insert(std::dynamic_pointer_cast<GeomDataAPI_Point2D>
 978                              (theBaseFeatureModified->attribute(SketchPlugin_Arc::START_ID())));
 979     thePoints.insert(std::dynamic_pointer_cast<GeomDataAPI_Point2D>
 980                                (theBaseFeatureModified->attribute(SketchPlugin_Arc::END_ID())));
 981   }
 982   else
 983     thePoints.insert(std::dynamic_pointer_cast<GeomDataAPI_Point2D>
 984                                        (theSplitFeature->attribute(SketchPlugin_Arc::START_ID())));
 985
 986   // additional constraints between split and base features
 987   aConstraintFeature = createConstraintForObjects(SketchPlugin_ConstraintEqual::ID(),
 988                                                        getFeatureResult(aBaseFeature),
 989                                                        getFeatureResult(theSplitFeature));
 990   theCreatedFeatures.insert(aConstraintFeature);
 991   aConstraintFeature = createConstraintForObjects(SketchPlugin_ConstraintTangent::ID(),
 992                                                        getFeatureResult(theSplitFeature),
 993                                                        getFeatureResult(aBaseFeature));
 994   theCreatedFeatures.insert(aConstraintFeature);
 995   if (theAfterFeature.get()) {
 996     aConstraintFeature = createConstraintForObjects(SketchPlugin_ConstraintEqual::ID(),
 997                                                     getFeatureResult(aBaseFeature),
 998                                                     getFeatureResult(theAfterFeature));
 999     theCreatedFeatures.insert(aConstraintFeature);
1000     aConstraintFeature = createConstraintForObjects(SketchPlugin_ConstraintTangent::ID(),
1001                                                     getFeatureResult(theSplitFeature),
1002                                                     getFeatureResult(theAfterFeature));
1003     theCreatedFeatures.insert(aConstraintFeature);
1004   }
1005 }
1006
1007 void SketchPlugin_ConstraintSplit::splitCircle(FeaturePtr& theSplitFeature,
1008                                                FeaturePtr& theBaseFeatureModified,
1009                                                FeaturePtr& theAfterFeature,
1010                                                std::set<AttributePoint2DPtr>& thePoints,
1011                                                std::set<FeaturePtr>& theCreatedFeatures,
1012                  std::set<std::pair<AttributePtr, AttributePtr>>& theModifiedAttributes)
1013 {
1014   std::set<FeaturePtr> aCreatedFeatures;
1015   FeaturePtr aConstraintFeature;
1016   theBaseFeatureModified = FeaturePtr(); // it will contain modified base feature
1017
1018   SketchPlugin_Sketch* aSketch = sketch();
1019   if (!aSketch)
1020     return;
1021
1022   AttributeReferencePtr aBaseObjectAttr = std::dynamic_pointer_cast<ModelAPI_AttributeReference>(
1023                                            data()->attribute(SketchPlugin_Constraint::VALUE()));
1024   FeaturePtr aBaseFeature = ModelAPI_Feature::feature(aBaseObjectAttr->value());
1025   std::string aFeatureKind = aBaseFeature->getKind();
1026   if (aFeatureKind != SketchPlugin_Circle::ID())
1027     return;
1028
1029   AttributePoint2DPtr aFirstPointAttrOfSplit =
1030     getPointOfRefAttr(data()->attribute(SketchPlugin_Constraint::ENTITY_A()));
1031   AttributePoint2DPtr aSecondPointAttrOfSplit =
1032     getPointOfRefAttr(data()->attribute(SketchPlugin_Constraint::ENTITY_B()));
1033
1034   /// split feature
1035   theSplitFeature =
1036     createArcFeature(aBaseFeature, aFirstPointAttrOfSplit, aSecondPointAttrOfSplit);
1037   bool aSplitReversed = std::dynamic_pointer_cast<SketchPlugin_Arc>(theSplitFeature)->isReversed();
1038   theCreatedFeatures.insert(theSplitFeature);
1039
1040   /// base feature is a left part of the circle
1041   theBaseFeatureModified = createArcFeature(aBaseFeature,
1042     aFirstPointAttrOfSplit, aSecondPointAttrOfSplit);
1043   std::dynamic_pointer_cast<SketchPlugin_Arc>(
1044     theBaseFeatureModified)->setReversed(!aSplitReversed);
1045   theBaseFeatureModified->execute();
1046
1047   theModifiedAttributes.insert(
1048     std::make_pair(aBaseFeature->attribute(SketchPlugin_Circle::CENTER_ID()),
1049                   theBaseFeatureModified->attribute(SketchPlugin_Arc::CENTER_ID())));
1050
1051   theCreatedFeatures.insert(theBaseFeatureModified);
1052
1053   thePoints.insert(std::dynamic_pointer_cast<GeomDataAPI_Point2D>
1054                              (theBaseFeatureModified->attribute(SketchPlugin_Arc::START_ID())));
1055   thePoints.insert(std::dynamic_pointer_cast<GeomDataAPI_Point2D>
1056                              (theBaseFeatureModified->attribute(SketchPlugin_Arc::END_ID())));
1057
1058   // additional constraints between split and base features
1059   aConstraintFeature = createConstraint(SketchPlugin_ConstraintCoincidence::ID(),
1060                      theBaseFeatureModified->attribute(SketchPlugin_Arc::END_ID()),
1061                      theSplitFeature->attribute(SketchPlugin_Arc::END_ID()));
1062   theCreatedFeatures.insert(aConstraintFeature);
1063   aConstraintFeature = createConstraint(SketchPlugin_ConstraintCoincidence::ID(),
1064                      theBaseFeatureModified->attribute(SketchPlugin_Arc::START_ID()),
1065                      theSplitFeature->attribute(SketchPlugin_Arc::START_ID()));
1066   theCreatedFeatures.insert(aConstraintFeature);
1067
1068   aConstraintFeature = createConstraintForObjects(SketchPlugin_ConstraintTangent::ID(),
1069                                                        getFeatureResult(theSplitFeature),
1070                                                        getFeatureResult(theBaseFeatureModified));
1071   theCreatedFeatures.insert(aConstraintFeature);
1072 }
1073
1074 void SketchPlugin_ConstraintSplit::arrangePointsOnLine(
1075     const AttributePoint2DPtr& theStartPointAttr,
1076     const AttributePoint2DPtr& theEndPointAttr,
1077     AttributePoint2DPtr& theFirstPointAttr,
1078     AttributePoint2DPtr& theLastPointAttr) const
1079 {
1080   // if first point is closer to last point, swap first and last values
1081   if (theStartPointAttr->pnt()->distance(theFirstPointAttr->pnt()) >
1082       theStartPointAttr->pnt()->distance(theLastPointAttr->pnt())) {
1083     AttributePoint2DPtr aTmpPoint = theFirstPointAttr;
1084     theFirstPointAttr = theLastPointAttr;
1085     theLastPointAttr = aTmpPoint;
1086   }
1087 }
1088
1089 void SketchPlugin_ConstraintSplit::arrangePointsOnArc(
1090     const FeaturePtr& theArc,
1091     const std::shared_ptr<GeomDataAPI_Point2D>& theStartPointAttr,
1092     const std::shared_ptr<GeomDataAPI_Point2D>& theEndPointAttr,
1093     std::shared_ptr<GeomDataAPI_Point2D>& theFirstPointAttr,
1094     std::shared_ptr<GeomDataAPI_Point2D>& theSecondPointAttr) const
1095 {
1096   static const double anAngleTol = 1.e-12;
1097
1098   std::shared_ptr<GeomAPI_Pnt2d> aCenter = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
1099       theArc->attribute(SketchPlugin_Arc::CENTER_ID()))->pnt();
1100   bool isReversed = theArc->boolean(SketchPlugin_Arc::INVERSED_ID())->value();
1101
1102   // collect directions to each point
1103   std::shared_ptr<GeomAPI_Dir2d> aStartDir(
1104       new GeomAPI_Dir2d(theStartPointAttr->pnt()->xy()->decreased(aCenter->xy())));
1105   std::shared_ptr<GeomAPI_Dir2d> aFirstPtDir(
1106       new GeomAPI_Dir2d(theFirstPointAttr->pnt()->xy()->decreased(aCenter->xy())));
1107   std::shared_ptr<GeomAPI_Dir2d> aSecondPtDir(
1108       new GeomAPI_Dir2d(theSecondPointAttr->pnt()->xy()->decreased(aCenter->xy())));
1109
1110   // sort points by their angular values
1111   double aFirstPtAngle = aStartDir->angle(aFirstPtDir);
1112   double aSecondPtAngle = aStartDir->angle(aSecondPtDir);
1113   double aPeriod = isReversed ? -2.0 * PI : 2.0 * PI;
1114   if (fabs(aFirstPtAngle) > anAngleTol && isReversed == (aFirstPtAngle > 0.))
1115     aFirstPtAngle += aPeriod;
1116   if (fabs(aSecondPtAngle) > anAngleTol && isReversed == (aSecondPtAngle > 0.))
1117     aSecondPtAngle += aPeriod;
1118
1119   if (fabs(aFirstPtAngle) > fabs(aSecondPtAngle)) {
1120     AttributePoint2DPtr aTmpPoint = theFirstPointAttr;
1121     theFirstPointAttr = theSecondPointAttr;
1122     theSecondPointAttr = aTmpPoint;
1123   }
1124 }
1125
1126 void SketchPlugin_ConstraintSplit::fillAttribute(const AttributePtr& theModifiedAttribute,
1127                                                  const AttributePtr& theSourceAttribute)
1128 {
1129   AttributePoint2DPtr aModifiedAttribute = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
1130                                             theModifiedAttribute);
1131   AttributePoint2DPtr aSourceAttribute = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
1132                                             theSourceAttribute);
1133
1134   if (aModifiedAttribute.get() && aSourceAttribute.get())
1135     aModifiedAttribute->setValue(aSourceAttribute->pnt());
1136 }
1137
1138 FeaturePtr SketchPlugin_ConstraintSplit::createLineFeature(const FeaturePtr& theBaseFeature,
1139                                                            const AttributePtr& theFirstPointAttr,
1140                                                            const AttributePtr& theSecondPointAttr)
1141 {
1142   FeaturePtr aFeature;
1143   SketchPlugin_Sketch* aSketch = sketch();
1144   if (!aSketch || !theBaseFeature.get())
1145     return aFeature;
1146
1147   aFeature = aSketch->addFeature(SketchPlugin_Line::ID());
1148
1149   fillAttribute(aFeature->attribute(SketchPlugin_Line::START_ID()), theFirstPointAttr);
1150   fillAttribute(aFeature->attribute(SketchPlugin_Line::END_ID()), theSecondPointAttr);
1151   aFeature->execute(); // to obtain result
1152
1153   return aFeature;
1154 }
1155
1156 FeaturePtr SketchPlugin_ConstraintSplit::createArcFeature(const FeaturePtr& theBaseFeature,
1157                                                           const AttributePtr& theFirstPointAttr,
1158                                                           const AttributePtr& theSecondPointAttr)
1159 {
1160   FeaturePtr aFeature;
1161   SketchPlugin_Sketch* aSketch = sketch();
1162   if (!aSketch || !theBaseFeature.get())
1163     return aFeature;
1164
1165   std::string aCenterAttributeId;
1166   if (theBaseFeature->getKind() == SketchPlugin_Arc::ID())
1167     aCenterAttributeId = SketchPlugin_Arc::CENTER_ID();
1168   else if (theBaseFeature->getKind() == SketchPlugin_Circle::ID())
1169     aCenterAttributeId = SketchPlugin_Circle::CENTER_ID();
1170
1171   if (aCenterAttributeId.empty())
1172     return aFeature;
1173
1174   aFeature = aSketch->addFeature(SketchPlugin_Arc::ID());
1175   // update fillet arc: make the arc correct for sure, so, it is not needed to process
1176   // the "attribute updated"
1177   // by arc; moreover, it may cause cyclicity in hte mechanism of updater
1178   aFeature->data()->blockSendAttributeUpdated(true);
1179
1180   aFeature->string(SketchPlugin_Arc::ARC_TYPE())->setValue(
1181                 SketchPlugin_Arc::ARC_TYPE_CENTER_START_END());
1182
1183   fillAttribute(aFeature->attribute(SketchPlugin_Arc::CENTER_ID()),
1184                 theBaseFeature->attribute(aCenterAttributeId));
1185   fillAttribute(aFeature->attribute(SketchPlugin_Arc::START_ID()), theFirstPointAttr);
1186   fillAttribute(aFeature->attribute(SketchPlugin_Arc::END_ID()), theSecondPointAttr);
1187
1188   /// fill referersed state of created arc as it is on the base arc
1189   if (theBaseFeature->getKind() == SketchPlugin_Arc::ID()) {
1190     bool aReversed = theBaseFeature->boolean(SketchPlugin_Arc::INVERSED_ID())->value();
1191     aFeature->boolean(SketchPlugin_Arc::INVERSED_ID())->setValue(aReversed);
1192   }
1193   aFeature->data()->blockSendAttributeUpdated(false);
1194   aFeature->execute(); // to obtain result
1195
1196   return aFeature;
1197 }
1198
1199 FeaturePtr SketchPlugin_ConstraintSplit::createConstraint(const std::string& theConstraintId,
1200                                                     const AttributePtr& theFirstAttribute,
1201                                                     const AttributePtr& theSecondAttribute)
1202 {
1203   FeaturePtr aConstraint = sketch()->addFeature(theConstraintId);
1204   AttributeRefAttrPtr aRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
1205                                  aConstraint->attribute(SketchPlugin_Constraint::ENTITY_A()));
1206   aRefAttr->setAttr(theFirstAttribute);
1207
1208   aRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
1209                                  aConstraint->attribute(SketchPlugin_Constraint::ENTITY_B()));
1210   aRefAttr->setAttr(theSecondAttribute);
1211
1212   return aConstraint;
1213 }
1214
1215 FeaturePtr SketchPlugin_ConstraintSplit::createConstraintForObjects(
1216                                                     const std::string& theConstraintId,
1217                                                     const ObjectPtr& theFirstObject,
1218                                                     const ObjectPtr& theSecondObject)
1219 {
1220   FeaturePtr aConstraint = sketch()->addFeature(theConstraintId);
1221   AttributeRefAttrPtr aRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
1222                                  aConstraint->attribute(SketchPlugin_Constraint::ENTITY_A()));
1223   aRefAttr->setObject(theFirstObject);
1224
1225   aRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
1226                                  aConstraint->attribute(SketchPlugin_Constraint::ENTITY_B()));
1227   aRefAttr->setObject(theSecondObject);
1228
1229   return aConstraint;
1230 }
1231
1232 void SketchPlugin_ConstraintSplit::updateFeaturesAfterSplit(
1233                                                    const std::set<FeaturePtr>& theFeaturesToUpdate)
1234 {
1235   std::set<FeaturePtr>::const_iterator anIt = theFeaturesToUpdate.begin(),
1236                                        aLast = theFeaturesToUpdate.end();
1237   for (; anIt != aLast; anIt++) {
1238     FeaturePtr aRefFeature = std::dynamic_pointer_cast<ModelAPI_Feature>(*anIt);
1239     std::string aRefFeatureKind = aRefFeature->getKind();
1240     if (aRefFeatureKind == SketchPlugin_ConstraintLength::ID()) {
1241       std::shared_ptr<SketchPlugin_ConstraintLength> aLenghtFeature =
1242                               std::dynamic_pointer_cast<SketchPlugin_ConstraintLength>(*anIt);
1243       if (aLenghtFeature.get()) {
1244         std::shared_ptr<ModelAPI_AttributeDouble> aValueAttr = std::dynamic_pointer_cast<
1245             ModelAPI_AttributeDouble>(aLenghtFeature->attribute(SketchPlugin_Constraint::VALUE()));
1246         double aValue;
1247         if (aLenghtFeature->computeLenghtValue(aValue) && aValueAttr.get())
1248           aValueAttr->setValue(aValue);
1249       }
1250     }
1251   }
1252 }
1253
1254 std::shared_ptr<ModelAPI_Result> SketchPlugin_ConstraintSplit::getFeatureResult(
1255                                     const std::shared_ptr<ModelAPI_Feature>& theFeature)
1256 {
1257   std::shared_ptr<ModelAPI_Result> aResult;
1258
1259   std::string aFeatureKind = theFeature->getKind();
1260   if (aFeatureKind == SketchPlugin_Line::ID())
1261     aResult = theFeature->firstResult();
1262   else if (aFeatureKind == SketchPlugin_Arc::ID())
1263     aResult = theFeature->lastResult();
1264   else if (aFeatureKind == SketchPlugin_Circle::ID())
1265     aResult = theFeature->lastResult();
1266
1267   return aResult;
1268 }
1269
1270 std::set<std::shared_ptr<ModelAPI_Attribute> > SketchPlugin_ConstraintSplit::getEdgeAttributes(
1271                                            const std::shared_ptr<ModelAPI_Feature>& theFeature)
1272 {
1273   std::set<std::shared_ptr<ModelAPI_Attribute> > anAttributes;
1274
1275   std::string aFeatureKind = theFeature->getKind();
1276   if (aFeatureKind == SketchPlugin_Line::ID()) {
1277     anAttributes.insert(theFeature->attribute(SketchPlugin_Line::START_ID()));
1278     anAttributes.insert(theFeature->attribute(SketchPlugin_Line::END_ID()));
1279   }
1280   else if (aFeatureKind == SketchPlugin_Arc::ID()) {
1281     anAttributes.insert(theFeature->attribute(SketchPlugin_Arc::START_ID()));
1282     anAttributes.insert(theFeature->attribute(SketchPlugin_Arc::END_ID()));
1283   }
1284   else if (aFeatureKind == SketchPlugin_Circle::ID()) {
1285   }
1286
1287   return anAttributes;
1288 }
1289
1290
1291 std::string SketchPlugin_ConstraintSplit::getFeatureInfo(
1292                                                const std::shared_ptr<ModelAPI_Feature>& theFeature,
1293                                                const bool isUseAttributesInfo)
1294 {
1295   std::string anInfo;
1296   if (!theFeature.get()) {
1297     return "none";
1298   }
1299
1300   if (theFeature->data()->isValid())
1301     anInfo.append(theFeature->data()->name().c_str());
1302
1303   if (isUseAttributesInfo) {
1304     std::string aPointsInfo = ModelGeomAlgo_Point2D::getPontAttributesInfo(theFeature,
1305                                                              getEdgeAttributes(theFeature));
1306     /// processing of feature with point 2d attributes, like line, arc, circle
1307     if (!aPointsInfo.empty()) {
1308       anInfo += ": ";
1309       anInfo += "\n";
1310       anInfo += aPointsInfo;
1311     }
1312     else { /// process constraint coincidence, find points in ref attr attributes
1313       std::list<AttributePtr> anAttrs = theFeature->data()->attributes(
1314                                                        ModelAPI_AttributeRefAttr::typeId());
1315       std::list<AttributePtr>::const_iterator anIt = anAttrs.begin(), aLast = anAttrs.end();
1316       std::string anAttributesInfo;
1317       for(; anIt != aLast; anIt++) {
1318         if (!anAttributesInfo.empty()) {
1319           anAttributesInfo.append(", ");
1320           anAttributesInfo += "\n";
1321         }
1322         AttributePtr anAttr = *anIt;
1323         std::string aValue = "not defined";
1324         std::string aType = anAttr->attributeType();
1325         if (aType == ModelAPI_AttributeRefAttr::typeId()) {
1326           std::shared_ptr<ModelAPI_AttributeRefAttr> aRefAttr =
1327                              std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(anAttr);
1328           if (aRefAttr.get()) {
1329             if (aRefAttr->isObject()) {
1330               FeaturePtr aFeature = ModelAPI_Feature::feature(aRefAttr->object());
1331               aValue = "<object:>" + getFeatureInfo(aFeature, false);
1332             }
1333             else {
1334               AttributePtr anAttribute = aRefAttr->attr();
1335               if (anAttribute.get()) {
1336                 FeaturePtr aFeature = ModelAPI_Feature::feature(anAttribute->owner());
1337                 aValue = "<attr:>" + ModelGeomAlgo_Point2D::getPointAttributeInfo(anAttribute) +
1338                          " [" + getFeatureInfo(aFeature, false) + "]";
1339               }
1340             }
1341           }
1342         }
1343         anAttributesInfo.append("    " + anAttr->id() + ": " + aValue);
1344       }
1345       if (!anAttributesInfo.empty())
1346         anInfo = anInfo + "\n" + anAttributesInfo;
1347     }
1348   }
1349   return anInfo;
1350 }
1351