src/PartSet/PartSet_WidgetPoint2d.cpp

   1 // Copyright (C) 2014-20xx CEA/DEN, EDF R&D
   2
   3 // File:        PartSet_WidgetPoint2D.cpp
   4 // Created:     25 Apr 2014
   5 // Author:      Natalia ERMOLAEVA
   6
   7 #include "PartSet_WidgetPoint2d.h"
   8 #include <PartSet_Tools.h>
   9 #include <PartSet_Module.h>
  10
  11 #include <ModuleBase_ParamSpinBox.h>
  12 #include <ModuleBase_Tools.h>
  13 #include <ModuleBase_IViewer.h>
  14 #include <ModuleBase_IViewWindow.h>
  15 #include <ModuleBase_ISelection.h>
  16
  17 #include <Config_Keywords.h>
  18 #include <Config_WidgetAPI.h>
  19
  20 #include <Events_Loop.h>
  21 #include <ModelAPI_Events.h>
  22
  23 #include <ModelAPI_Feature.h>
  24 #include <ModelAPI_Data.h>
  25 #include <ModelAPI_Object.h>
  26 #include <GeomDataAPI_Point2D.h>
  27 #include <GeomAPI_Pnt2d.h>
  28
  29 #include <SketchPlugin_Feature.h>
  30 #include <SketchPlugin_ConstraintCoincidence.h>
  31 #include <SketchPlugin_Line.h>
  32 #include <SketchPlugin_Arc.h>
  33 #include <SketchPlugin_Circle.h>
  34 #include <SketchPlugin_Point.h>
  35
  36 #include <QGroupBox>
  37 #include <QGridLayout>
  38 #include <QLabel>
  39 #include <QEvent>
  40 #include <QMouseEvent>
  41 #include <QApplication>
  42
  43 #include <TopoDS.hxx>
  44 #include <TopoDS_Vertex.hxx>
  45 #include <BRep_Tool.hxx>
  46
  47 #include <cfloat>
  48 #include <climits>
  49
  50 const double MaxCoordinate = 1e12;
  51
  52 static QStringList MyFeaturesForCoincedence;
  53
  54 PartSet_WidgetPoint2D::PartSet_WidgetPoint2D(QWidget* theParent,
  55                                              ModuleBase_IWorkshop* theWorkshop,
  56                                              const Config_WidgetAPI* theData,
  57                                              const std::string& theParentId)
  58  : ModuleBase_ModelWidget(theParent, theData, theParentId), myWorkshop(theWorkshop)
  59 {
  60   if (MyFeaturesForCoincedence.isEmpty()) {
  61     MyFeaturesForCoincedence << SketchPlugin_Line::ID().c_str()
  62       << SketchPlugin_Arc::ID().c_str()
  63       << SketchPlugin_Point::ID().c_str()
  64       << SketchPlugin_Circle::ID().c_str();
  65   }
  66
  67   // the control should accept the focus, so the boolen flag is corrected to be true
  68   myIsObligatory = true;
  69   //myOptionParam = theData->getProperty(PREVIOUS_FEATURE_PARAM);
  70   QString aPageName = QString::fromStdString(theData->getProperty(CONTAINER_PAGE_NAME));
  71   myGroupBox = new QGroupBox(aPageName, theParent);
  72   myGroupBox->setFlat(false);
  73
  74   QGridLayout* aGroupLay = new QGridLayout(myGroupBox);
  75   ModuleBase_Tools::adjustMargins(aGroupLay);
  76   aGroupLay->setSpacing(2);
  77   aGroupLay->setColumnStretch(1, 1);
  78   {
  79     QLabel* aLabel = new QLabel(myGroupBox);
  80     aLabel->setText(tr("X "));
  81     aGroupLay->addWidget(aLabel, 0, 0);
  82
  83     myXSpin = new ModuleBase_ParamSpinBox(myGroupBox);
  84     myXSpin->setMinimum(-DBL_MAX);
  85     myXSpin->setMaximum(DBL_MAX);
  86     myXSpin->setToolTip(tr("X"));
  87     aGroupLay->addWidget(myXSpin, 0, 1);
  88
  89     connect(myXSpin, SIGNAL(valueChanged(const QString&)), this, SIGNAL(valuesModified()));
  90   }
  91   {
  92     QLabel* aLabel = new QLabel(myGroupBox);
  93     aLabel->setText(tr("Y "));
  94     aGroupLay->addWidget(aLabel, 1, 0);
  95
  96     myYSpin = new ModuleBase_ParamSpinBox(myGroupBox);
  97     myYSpin->setMinimum(-DBL_MAX);
  98     myYSpin->setMaximum(DBL_MAX);
  99     myYSpin->setToolTip(tr("Y"));
 100     aGroupLay->addWidget(myYSpin, 1, 1);
 101
 102     connect(myYSpin, SIGNAL(valueChanged(const QString&)), this, SIGNAL(valuesModified()));
 103   }
 104   QVBoxLayout* aLayout = new QVBoxLayout(this);
 105   ModuleBase_Tools::zeroMargins(aLayout);
 106   aLayout->addWidget(myGroupBox);
 107   setLayout(aLayout);
 108 }
 109
 110 bool PartSet_WidgetPoint2D::resetCustom()
 111 {
 112   bool aDone = false;
 113   if (!isUseReset() || isComputedDefault() || myXSpin->hasVariable() || myYSpin->hasVariable()) {
 114     aDone = false;
 115   }
 116   else {
 117     bool isOk;
 118     double aDefValue = QString::fromStdString(getDefaultValue()).toDouble(&isOk);
 119     // it is important to block the spin box control in order to do not through out the
 120     // locking of the validating state.
 121     ModuleBase_Tools::setSpinValue(myXSpin, isOk ? aDefValue : 0.0);
 122     ModuleBase_Tools::setSpinValue(myYSpin, isOk ? aDefValue : 0.0);
 123     storeValueCustom();
 124     aDone = true;
 125   }
 126   return aDone;
 127 }
 128
 129 PartSet_WidgetPoint2D::~PartSet_WidgetPoint2D()
 130 {
 131 }
 132
 133 bool PartSet_WidgetPoint2D::setSelection(QList<ModuleBase_ViewerPrs>& theValues,
 134                                          const bool theToValidate)
 135 {
 136   bool isDone = false;
 137   if (theValues.empty())
 138     return isDone;
 139
 140   ModuleBase_ViewerPrs aValue = theValues.takeFirst();
 141   TopoDS_Shape aShape = aValue.shape();
 142   if (!aShape.IsNull()) {
 143     Handle(V3d_View) aView = myWorkshop->viewer()->activeView();
 144     double aX, aY;
 145     if (getPoint2d(aView, aShape, aX, aY)) {
 146       isDone = setPoint(aX, aY);
 147     }
 148   }
 149   else if (canBeActivatedByMove()) {
 150     if (feature()->getKind() == SketchPlugin_Line::ID()) {
 151       FeaturePtr aFeature = std::dynamic_pointer_cast<ModelAPI_Feature>(aValue.object());
 152       // Initialise new line with first point equal to end of previous
 153       if (aFeature.get()) {
 154         std::shared_ptr<ModelAPI_Data> aData = aFeature->data();
 155         std::shared_ptr<GeomDataAPI_Point2D> aPoint =
 156           std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
 157                                        aData->attribute(SketchPlugin_Line::END_ID()));
 158         if (aPoint) {
 159           setPoint(aPoint->x(), aPoint->y());
 160           PartSet_Tools::setConstraints(mySketch, feature(), attributeID(), aPoint->x(),
 161                                         aPoint->y());
 162           isDone = true;
 163         }
 164       }
 165     }
 166   }
 167   return isDone;
 168 }
 169
 170 void PartSet_WidgetPoint2D::selectContent()
 171 {
 172   myXSpin->selectAll();
 173 }
 174
 175 bool PartSet_WidgetPoint2D::setPoint(double theX, double theY)
 176 {
 177   if (fabs(theX) >= MaxCoordinate)
 178     return false;
 179   if (fabs(theY) >= MaxCoordinate)
 180     return false;
 181
 182   ModuleBase_Tools::setSpinValue(myXSpin, theX);
 183   ModuleBase_Tools::setSpinValue(myYSpin, theY);
 184
 185   storeValue();
 186   return true;
 187 }
 188
 189 bool PartSet_WidgetPoint2D::storeValueCustom() const
 190 {
 191   std::shared_ptr<ModelAPI_Data> aData = myFeature->data();
 192   if (!aData) // can be on abort of sketcher element
 193     return false;
 194   std::shared_ptr<GeomDataAPI_Point2D> aPoint = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
 195       aData->attribute(attributeID()));
 196
 197   PartSet_WidgetPoint2D* that = (PartSet_WidgetPoint2D*) this;
 198   bool isBlocked = that->blockSignals(true);
 199   bool isImmutable = aPoint->setImmutable(true);
 200
 201   // if text is not empty then setValue will be ignored
 202   // so we should set the text at first
 203   aPoint->setText(myXSpin->hasVariable() ? myXSpin->text().toStdString() : "",
 204                   myYSpin->hasVariable() ? myYSpin->text().toStdString() : "");
 205   aPoint->setValue(!myXSpin->hasVariable() ? myXSpin->value() : aPoint->x(),
 206                    !myYSpin->hasVariable() ? myYSpin->value() : aPoint->y());
 207
 208   // after movement the solver will call the update event: optimization
 209   moveObject(myFeature);
 210   aPoint->setImmutable(isImmutable);
 211   that->blockSignals(isBlocked);
 212
 213   return true;
 214 }
 215
 216 bool PartSet_WidgetPoint2D::restoreValueCustom()
 217 {
 218   std::shared_ptr<ModelAPI_Data> aData = myFeature->data();
 219   std::shared_ptr<GeomDataAPI_Point2D> aPoint = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
 220       aData->attribute(attributeID()));
 221   QString aTextX = QString::fromStdString(aPoint->textX());
 222   QString aTextY = QString::fromStdString(aPoint->textY());
 223
 224   bool isDouble = false;
 225   double aVal = 0;
 226   if (aTextX.isEmpty()) {
 227     ModuleBase_Tools::setSpinValue(myXSpin, aPoint->x());
 228   } else {
 229     aVal = aTextX.toDouble(&isDouble);
 230     if (isDouble)
 231       ModuleBase_Tools::setSpinValue(myXSpin, aVal);
 232     else
 233       ModuleBase_Tools::setSpinText(myXSpin, aTextX);
 234   }
 235   if (aTextY.isEmpty()) {
 236     ModuleBase_Tools::setSpinValue(myYSpin, aPoint->y());
 237   } else {
 238     aVal = aTextY.toDouble(&isDouble);
 239     if (isDouble)
 240       ModuleBase_Tools::setSpinValue(myYSpin, aVal);
 241     else
 242       ModuleBase_Tools::setSpinText(myYSpin, aTextY);
 243   }
 244   //if (aTextX.empty() || aTextY.empty()) {
 245   //  ModuleBase_Tools::setSpinValue(myXSpin, aPoint->x());
 246   //  ModuleBase_Tools::setSpinValue(myYSpin, aPoint->y());
 247   //} else {
 248   //  ModuleBase_Tools::setSpinText(myXSpin, QString::fromStdString(aTextX));
 249   //  ModuleBase_Tools::setSpinText(myYSpin, QString::fromStdString(aTextY));
 250   //}
 251   return true;
 252 }
 253
 254 QList<QWidget*> PartSet_WidgetPoint2D::getControls() const
 255 {
 256   QList<QWidget*> aControls;
 257   aControls.append(myXSpin);
 258   aControls.append(myYSpin);
 259   return aControls;
 260 }
 261
 262
 263 void PartSet_WidgetPoint2D::activateCustom()
 264 {
 265   ModuleBase_IViewer* aViewer = myWorkshop->viewer();
 266   connect(aViewer, SIGNAL(mouseMove(ModuleBase_IViewWindow*, QMouseEvent*)),
 267           this, SLOT(onMouseMove(ModuleBase_IViewWindow*, QMouseEvent*)));
 268   connect(aViewer, SIGNAL(mouseRelease(ModuleBase_IViewWindow*, QMouseEvent*)),
 269           this, SLOT(onMouseRelease(ModuleBase_IViewWindow*, QMouseEvent*)));
 270
 271   QIntList aModes;
 272   aModes << TopAbs_VERTEX;
 273   aModes << TopAbs_EDGE;
 274   myWorkshop->activateSubShapesSelection(aModes);
 275 }
 276
 277 bool PartSet_WidgetPoint2D::canBeActivatedByMove()
 278 {
 279   bool aCanBeActivated = false;
 280   if (feature()->getKind() == SketchPlugin_Line::ID() &&
 281       attributeID() == SketchPlugin_Line::START_ID())
 282     aCanBeActivated = true;
 283
 284   return aCanBeActivated;
 285 }
 286
 287 void PartSet_WidgetPoint2D::deactivate()
 288 {
 289   // the value of the control should be stored to model if it was not
 290   // initialized yet. It is important when we leave this control by Tab key.
 291   // It should not be performed by the widget activation as the preview
 292   // is visualized with default value. Line point is moved to origin.
 293   AttributePtr anAttribute = myFeature->data()->attribute(attributeID());
 294   if (anAttribute && !anAttribute->isInitialized())
 295     storeValue();
 296
 297   ModuleBase_ModelWidget::deactivate();
 298   ModuleBase_IViewer* aViewer = myWorkshop->viewer();
 299   disconnect(aViewer, SIGNAL(mouseMove(ModuleBase_IViewWindow*, QMouseEvent*)),
 300              this, SLOT(onMouseMove(ModuleBase_IViewWindow*, QMouseEvent*)));
 301   disconnect(aViewer, SIGNAL(mouseRelease(ModuleBase_IViewWindow*, QMouseEvent*)),
 302              this, SLOT(onMouseRelease(ModuleBase_IViewWindow*, QMouseEvent*)));
 303
 304   myWorkshop->deactivateSubShapesSelection();
 305 }
 306
 307 bool PartSet_WidgetPoint2D::getPoint2d(const Handle(V3d_View)& theView,
 308                                        const TopoDS_Shape& theShape,
 309                                        double& theX, double& theY) const
 310 {
 311   if (!theShape.IsNull()) {
 312     if (theShape.ShapeType() == TopAbs_VERTEX) {
 313       const TopoDS_Vertex& aVertex = TopoDS::Vertex(theShape);
 314       if (!aVertex.IsNull()) {
 315         // A case when point is taken from existing vertex
 316         gp_Pnt aPoint = BRep_Tool::Pnt(aVertex);
 317         PartSet_Tools::convertTo2D(aPoint, mySketch, theView, theX, theY);
 318         return true;
 319       }
 320     }
 321   }
 322   return false;
 323 }
 324
 325 void PartSet_WidgetPoint2D::setConstraintWith(const ObjectPtr& theObject)
 326 {
 327   // Create point-edge coincedence
 328   FeaturePtr aFeature = mySketch->addFeature(SketchPlugin_ConstraintCoincidence::ID());
 329   std::shared_ptr<ModelAPI_Data> aData = aFeature->data();
 330
 331   std::shared_ptr<ModelAPI_AttributeRefAttr> aRef1 = std::dynamic_pointer_cast<
 332       ModelAPI_AttributeRefAttr>(aData->attribute(SketchPlugin_Constraint::ENTITY_A()));
 333   AttributePtr aThisAttr = feature()->data()->attribute(attributeID());
 334   std::shared_ptr<GeomDataAPI_Point2D> aThisPoint =
 335     std::dynamic_pointer_cast<GeomDataAPI_Point2D>(aThisAttr);
 336   aRef1->setAttr(aThisPoint);
 337
 338   std::shared_ptr<ModelAPI_AttributeRefAttr> aRef2 = std::dynamic_pointer_cast<
 339       ModelAPI_AttributeRefAttr>(aData->attribute(SketchPlugin_Constraint::ENTITY_B()));
 340   aRef2->setObject(theObject);
 341
 342   aFeature->execute();
 343 }
 344
 345 void PartSet_WidgetPoint2D::onMouseRelease(ModuleBase_IViewWindow* theWnd, QMouseEvent* theEvent)
 346 {
 347   // the contex menu release by the right button should not be processed by this widget
 348   if (theEvent->button() != Qt::LeftButton)
 349     return;
 350
 351   ModuleBase_ISelection* aSelection = myWorkshop->selection();
 352   Handle(V3d_View) aView = theWnd->v3dView();
 353   // TODO: This fragment doesn't work because bug in OCC Viewer. It can be used after fixing.
 354   NCollection_List<TopoDS_Shape> aShapes;
 355   std::list<ObjectPtr> aObjects;
 356   aSelection->selectedShapes(aShapes, aObjects);
 357   // if we have selection
 358   if (aShapes.Extent() > 0) {
 359     TopoDS_Shape aShape = aShapes.First();
 360     ObjectPtr aObject = aObjects.front();
 361     FeaturePtr aSelectedFeature = ModelAPI_Feature::feature(aObject);
 362     bool anExternal = false;
 363       std::shared_ptr<SketchPlugin_Feature> aSPFeature;
 364       if (aSelectedFeature.get() != NULL)
 365         aSPFeature = std::dynamic_pointer_cast<SketchPlugin_Feature>(aSelectedFeature);
 366       if ((!aSPFeature) && (!aShape.IsNull())) {
 367         anExternal = true;
 368         ResultPtr aFixedObject = PartSet_Tools::findFixedObjectByExternal(aShape, aObject, mySketch);
 369         if (!aFixedObject.get())
 370           aObject = PartSet_Tools::createFixedObjectByExternal(aShape, aObject, mySketch);
 371
 372         double aX, aY;
 373         if (getPoint2d(aView, aShape, aX, aY) && isFeatureContainsPoint(myFeature, aX, aY)) {
 374           // do not create a constraint to the point, which already used by the feature
 375           // if the feature contains the point, focus is not switched
 376           setPoint(aX, aY);
 377         }
 378         else {
 379           if (getPoint2d(aView, aShape, aX, aY))
 380             setPoint(aX, aY);
 381           bool anOrphanPoint = isOrphanPoint(aSelectedFeature, mySketch, aX, aY);
 382           setConstraintWith(aObject);
 383           if (!anOrphanPoint)
 384             emit vertexSelected();
 385           emit focusOutWidget(this);
 386         }
 387       }
 388     if (!anExternal) {
 389       double aX, aY;
 390       bool isProcessed = false;
 391       if (getPoint2d(aView, aShape, aX, aY) && isFeatureContainsPoint(myFeature, aX, aY)) {
 392         // when the point is selected, the coordinates of the point should be set into the attribute
 393         // if the feature contains the point, focus is not switched
 394         setPoint(aX, aY);
 395       }
 396       else {
 397         bool anOrphanPoint = isOrphanPoint(aSelectedFeature, mySketch, aX, aY);
 398         // do not set a coincidence constraint in the attribute if the feature contains a point
 399         // with the same coordinates. It is important for line creation in order to do not set
 400         // the same constraints for the same points, oterwise the result line has zero length.
 401         if (getPoint2d(aView, aShape, aX, aY)) {
 402           setPoint(aX, aY);
 403           PartSet_Tools::setConstraints(mySketch, feature(), attributeID(), aX, aY);
 404         }
 405         else if (aShape.ShapeType() == TopAbs_EDGE) {
 406           if (MyFeaturesForCoincedence.contains(myFeature->getKind().c_str()))
 407             setConstraintWith(aObject);
 408         }
 409         // it is important to perform updateObject() in order to the current value is
 410         // processed by Sketch Solver. Test case: line is created from a previous point
 411         // to some distance, but in the area of the highlighting of the point. Constraint
 412         // coincidence is created, after the solver is performed, the distance between the
 413         // points of the line becomes less than the tolerance. Validator of the line returns
 414         // false, the line will be aborted, but sketch stays valid.
 415         updateObject(feature());
 416         if (!anOrphanPoint)
 417           emit vertexSelected();
 418         emit focusOutWidget(this);
 419       }
 420     }
 421   }
 422   // End of Bug dependent fragment
 423   else {
 424     // A case when point is taken from mouse event
 425     gp_Pnt aPoint = PartSet_Tools::convertClickToPoint(theEvent->pos(), theWnd->v3dView());
 426     double aX, anY;
 427     PartSet_Tools::convertTo2D(aPoint, mySketch, aView, aX, anY);
 428
 429     // if the feature contains the point, focus is not switched
 430     if (!setPoint(aX, anY) || isFeatureContainsPoint(myFeature, aX, anY))
 431       return;
 432
 433     /// Start alternative code
 434     //std::shared_ptr<GeomDataAPI_Point2D> aFeaturePoint = std::dynamic_pointer_cast<
 435     //    GeomDataAPI_Point2D>(feature()->data()->attribute(attributeID()));
 436     //QList<FeaturePtr> aIgnore;
 437     //aIgnore.append(feature());
 438
 439     //double aTolerance = aView->Convert(7);
 440     //std::shared_ptr<GeomDataAPI_Point2D> aAttrPnt =
 441     //  PartSet_Tools::findAttributePoint(mySketch, aX, anY, aTolerance, aIgnore);
 442     //if (aAttrPnt.get() != NULL) {
 443     //  aFeaturePoint->setValue(aAttrPnt->pnt());
 444     //  PartSet_Tools::createConstraint(mySketch, aAttrPnt, aFeaturePoint);
 445     //  emit vertexSelected();
 446     //}
 447     /// End alternative code
 448     emit focusOutWidget(this);
 449   }
 450 }
 451
 452
 453 void PartSet_WidgetPoint2D::onMouseMove(ModuleBase_IViewWindow* theWnd, QMouseEvent* theEvent)
 454 {
 455   if (isEditingMode())
 456     return;
 457
 458   gp_Pnt aPoint = PartSet_Tools::convertClickToPoint(theEvent->pos(), theWnd->v3dView());
 459
 460   double aX, anY;
 461   PartSet_Tools::convertTo2D(aPoint, mySketch, theWnd->v3dView(), aX, anY);
 462   // we need to block the value state change
 463   bool isBlocked = blockValueState(true);
 464   setPoint(aX, anY);
 465   blockValueState(isBlocked);
 466   setValueState(ModifiedInViewer);
 467 }
 468
 469 double PartSet_WidgetPoint2D::x() const
 470 {
 471   return myXSpin->value();
 472 }
 473
 474 double PartSet_WidgetPoint2D::y() const
 475 {
 476   return myYSpin->value();
 477 }
 478
 479
 480 bool PartSet_WidgetPoint2D::isFeatureContainsPoint(const FeaturePtr& theFeature,
 481                                                    double theX, double theY)
 482 {
 483   bool aPointIsFound = false;
 484
 485   if (feature()->getKind() != SketchPlugin_Line::ID())
 486     return aPointIsFound;
 487
 488   AttributePtr aWidgetAttribute = myFeature->attribute(attributeID());
 489
 490   std::shared_ptr<GeomAPI_Pnt2d> aPnt2d =
 491                                     std::shared_ptr<GeomAPI_Pnt2d>(new GeomAPI_Pnt2d(theX, theY));
 492   std::list<AttributePtr> anAttributes =
 493                                 myFeature->data()->attributes(GeomDataAPI_Point2D::typeId());
 494   std::list<AttributePtr>::iterator anIter = anAttributes.begin();
 495   for(; anIter != anAttributes.end() && !aPointIsFound; anIter++) {
 496     AttributePoint2DPtr aPoint2DAttribute =
 497       std::dynamic_pointer_cast<GeomDataAPI_Point2D>(*anIter);
 498     if (aPoint2DAttribute == aWidgetAttribute)
 499       continue;
 500     if (aPoint2DAttribute.get() && aPoint2DAttribute->isInitialized()) {
 501       aPointIsFound = aPoint2DAttribute->pnt()->isEqual(aPnt2d);
 502     }
 503   }
 504   return aPointIsFound;
 505 }
 506
 507 void PartSet_WidgetPoint2D::initializeValueByActivate()
 508 {
 509 }
 510
 511 /*void PartSet_WidgetPoint2D::onValuesChanged()
 512 {
 513   emit valuesChanged();
 514 }*/
 515
 516 bool PartSet_WidgetPoint2D::processEnter()
 517 {
 518   bool isModified = getValueState() == ModifiedInPP;
 519   if (isModified) {
 520     bool isXModified = myXSpin->hasFocus();
 521     emit valuesChanged();
 522     if (isXModified)
 523       myXSpin->selectAll();
 524     else
 525       myYSpin->selectAll();
 526   }
 527   return isModified;
 528 }
 529
 530 bool PartSet_WidgetPoint2D::isOrphanPoint(const FeaturePtr& theFeature,
 531                                           const CompositeFeaturePtr& theSketch,
 532                                           double theX, double theY)
 533 {
 534   bool anOrphanPoint = false;
 535   if (theFeature.get()) {
 536     std::shared_ptr<GeomDataAPI_Point2D> aPointAttr;
 537     std::string aFeatureKind = theFeature->getKind();
 538     if (aFeatureKind == SketchPlugin_Point::ID())
 539       aPointAttr = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
 540                                        theFeature->attribute(SketchPlugin_Point::COORD_ID()));
 541     else if (aFeatureKind == SketchPlugin_Circle::ID())
 542       aPointAttr = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
 543                                        theFeature->attribute(SketchPlugin_Circle::CENTER_ID()));
 544
 545     else if (aFeatureKind == SketchPlugin_Arc::ID())
 546       aPointAttr = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
 547                                        theFeature->attribute(SketchPlugin_Arc::CENTER_ID()));
 548
 549     /// check that the geometry point with the given coordinates is the checked point
 550     /// e.g. in arc the (x,y) point can not coicide to the center point and it automatically
 551     /// means that this point is not an orphant one.
 552     if (aPointAttr.get()) {
 553       std::shared_ptr<GeomAPI_Pnt2d> aCheckedPoint = std::shared_ptr<GeomAPI_Pnt2d>(
 554                                                     new GeomAPI_Pnt2d(theX, theY));
 555       if (!aCheckedPoint->isEqual(aPointAttr->pnt()))
 556         return anOrphanPoint;
 557     }
 558
 559     if (aPointAttr.get()) {
 560       std::shared_ptr<GeomAPI_Pnt2d> aPoint = aPointAttr->pnt();
 561       FeaturePtr aCoincidence = PartSet_Tools::findFirstCoincidence(theFeature, aPoint);
 562       anOrphanPoint = true;
 563       // if there is at least one concident line to the point, the point is not an orphant
 564       if (aCoincidence.get()) {
 565         QList<FeaturePtr> aCoinsideLines;
 566         PartSet_Tools::findCoincidences(aCoincidence, aCoinsideLines,
 567                                         SketchPlugin_ConstraintCoincidence::ENTITY_A());
 568         PartSet_Tools::findCoincidences(aCoincidence, aCoinsideLines,
 569                                         SketchPlugin_ConstraintCoincidence::ENTITY_B());
 570         QList<FeaturePtr>::const_iterator anIt = aCoinsideLines.begin(),
 571                                           aLast = aCoinsideLines.end();
 572         for (; anIt != aLast && anOrphanPoint; anIt++) {
 573           anOrphanPoint = (*anIt)->getKind() != SketchPlugin_Line::ID();
 574         }
 575       }
 576     }
 577   }
 578   return anOrphanPoint;
 579 }