src/PartSet/PartSet_Tools.cpp

   1 // File:        PartSet_Tools.h
   2 // Created:     28 Apr 2014
   3 // Author:      Natalia ERMOLAEVA
   4
   5 #include <PartSet_Tools.h>
   6
   7 #include <ModelAPI_Data.h>
   8 #include <ModelAPI_AttributeDouble.h>
   9 #include <ModelAPI_AttributeRefList.h>
  10 #include <ModelAPI_Document.h>
  11 #include <ModelAPI_Session.h>
  12 #include <ModelAPI_ResultConstruction.h>
  13
  14 #include <GeomDataAPI_Point.h>
  15 #include <GeomDataAPI_Dir.h>
  16 #include <GeomDataAPI_Point2D.h>
  17 #include <GeomAPI_Pln.h>
  18 #include <GeomAPI_Pnt2d.h>
  19 #include <GeomAPI_Pnt.h>
  20 #include <GeomAPI_Edge.h>
  21
  22 #include <GeomAPI_Dir.h>
  23 #include <GeomAPI_XYZ.h>
  24
  25 #include <SketchPlugin_Feature.h>
  26 #include <SketchPlugin_Sketch.h>
  27 #include <SketchPlugin_ConstraintCoincidence.h>
  28 #include <SketchPlugin_ConstraintDistance.h>
  29 #include <SketchPlugin_ConstraintLength.h>
  30 #include <SketchPlugin_ConstraintRadius.h>
  31 #include <SketchPlugin_ConstraintRigid.h>
  32 #include <SketchPlugin_Constraint.h>
  33 #include <SketchPlugin_Circle.h>
  34 #include <SketchPlugin_Arc.h>
  35 #include <SketchPlugin_Line.h>
  36
  37 #include <ModuleBase_ViewerPrs.h>
  38
  39 #include <V3d_View.hxx>
  40 #include <gp_Pln.hxx>
  41 #include <gp_Circ.hxx>
  42 #include <ProjLib.hxx>
  43 #include <ElSLib.hxx>
  44 #include <Geom_Line.hxx>
  45 #include <GeomAPI_ProjectPointOnCurve.hxx>
  46 #include <BRep_Tool.hxx>
  47 #include <TopoDS.hxx>
  48 #include <TopoDS_Edge.hxx>
  49
  50 #ifdef _DEBUG
  51 #include <QDebug>
  52 #endif
  53
  54 const double PRECISION_TOLERANCE = 0.000001;
  55
  56 gp_Pnt PartSet_Tools::convertClickToPoint(QPoint thePoint, Handle(V3d_View) theView)
  57 {
  58   if (theView.IsNull())
  59     return gp_Pnt();
  60
  61   V3d_Coordinate XEye, YEye, ZEye, XAt, YAt, ZAt;
  62   theView->Eye(XEye, YEye, ZEye);
  63
  64   theView->At(XAt, YAt, ZAt);
  65   gp_Pnt EyePoint(XEye, YEye, ZEye);
  66   gp_Pnt AtPoint(XAt, YAt, ZAt);
  67
  68   gp_Vec EyeVector(EyePoint, AtPoint);
  69   gp_Dir EyeDir(EyeVector);
  70
  71   gp_Pln PlaneOfTheView = gp_Pln(AtPoint, EyeDir);
  72   Standard_Real X, Y, Z;
  73   theView->Convert(thePoint.x(), thePoint.y(), X, Y, Z);
  74   gp_Pnt ConvertedPoint(X, Y, Z);
  75
  76   gp_Pnt2d ConvertedPointOnPlane = ProjLib::Project(PlaneOfTheView, ConvertedPoint);
  77   gp_Pnt ResultPoint = ElSLib::Value(ConvertedPointOnPlane.X(), ConvertedPointOnPlane.Y(),
  78                                      PlaneOfTheView);
  79   return ResultPoint;
  80 }
  81
  82 void PartSet_Tools::convertTo2D(const gp_Pnt& thePoint, FeaturePtr theSketch,
  83 Handle(V3d_View) theView,
  84                                 double& theX, double& theY)
  85 {
  86   if (!theSketch)
  87     return;
  88
  89   AttributeDoublePtr anAttr;
  90   boost::shared_ptr<ModelAPI_Data> aData = theSketch->data();
  91
  92   boost::shared_ptr<GeomDataAPI_Point> anOrigin = boost::dynamic_pointer_cast<GeomDataAPI_Point>(
  93       aData->attribute(SketchPlugin_Sketch::ORIGIN_ID()));
  94
  95   boost::shared_ptr<GeomDataAPI_Dir> aX = boost::dynamic_pointer_cast<GeomDataAPI_Dir>(
  96       aData->attribute(SketchPlugin_Sketch::DIRX_ID()));
  97   boost::shared_ptr<GeomDataAPI_Dir> anY = boost::dynamic_pointer_cast<GeomDataAPI_Dir>(
  98       aData->attribute(SketchPlugin_Sketch::DIRY_ID()));
  99
 100   gp_Pnt anOriginPnt(anOrigin->x(), anOrigin->y(), anOrigin->z());
 101   gp_Vec aVec(anOriginPnt, thePoint);
 102
 103   if (!theView.IsNull()) {
 104     V3d_Coordinate XEye, YEye, ZEye, XAt, YAt, ZAt;
 105     theView->Eye(XEye, YEye, ZEye);
 106
 107     theView->At(XAt, YAt, ZAt);
 108     gp_Pnt EyePoint(XEye, YEye, ZEye);
 109     gp_Pnt AtPoint(XAt, YAt, ZAt);
 110
 111     gp_Vec anEyeVec(EyePoint, AtPoint);
 112     anEyeVec.Normalize();
 113
 114     boost::shared_ptr<GeomDataAPI_Dir> aNormal = boost::dynamic_pointer_cast<GeomDataAPI_Dir>(
 115         aData->attribute(SketchPlugin_Sketch::NORM_ID()));
 116     gp_Vec aNormalVec(aNormal->x(), aNormal->y(), aNormal->z());
 117
 118     double aDen = anEyeVec * aNormalVec;
 119     double aLVec = aDen != 0 ? aVec * aNormalVec / aDen : DBL_MAX;
 120
 121     gp_Vec aDeltaVec = anEyeVec * aLVec;
 122     aVec = aVec - aDeltaVec;
 123   }
 124   theX = aVec.X() * aX->x() + aVec.Y() * aX->y() + aVec.Z() * aX->z();
 125   theY = aVec.X() * anY->x() + aVec.Y() * anY->y() + aVec.Z() * anY->z();
 126 }
 127
 128 void PartSet_Tools::convertTo3D(const double theX, const double theY, FeaturePtr theSketch,
 129                                 gp_Pnt& thePoint)
 130 {
 131   if (!theSketch)
 132     return;
 133
 134   boost::shared_ptr<ModelAPI_Data> aData = theSketch->data();
 135
 136   boost::shared_ptr<GeomDataAPI_Point> aC = boost::dynamic_pointer_cast<GeomDataAPI_Point>(
 137       aData->attribute(SketchPlugin_Sketch::ORIGIN_ID()));
 138   boost::shared_ptr<GeomDataAPI_Dir> aX = boost::dynamic_pointer_cast<GeomDataAPI_Dir>(
 139       aData->attribute(SketchPlugin_Sketch::DIRX_ID()));
 140   boost::shared_ptr<GeomDataAPI_Dir> aY = boost::dynamic_pointer_cast<GeomDataAPI_Dir>(
 141       aData->attribute(SketchPlugin_Sketch::DIRY_ID()));
 142
 143   boost::shared_ptr<GeomAPI_XYZ> aSum = aC->pnt()->xyz()->added(aX->dir()->xyz()->multiplied(theX))
 144       ->added(aY->dir()->xyz()->multiplied(theY));
 145
 146   boost::shared_ptr<GeomAPI_Pnt> aPoint = boost::shared_ptr<GeomAPI_Pnt>(new GeomAPI_Pnt(aSum));
 147   thePoint = gp_Pnt(aPoint->x(), aPoint->y(), aPoint->z());
 148 }
 149
 150 ObjectPtr PartSet_Tools::nearestFeature(QPoint thePoint, Handle_V3d_View theView,
 151                                         FeaturePtr theSketch,
 152                                         const QList<ModuleBase_ViewerPrs>& theSelected,
 153                                         const QList<ModuleBase_ViewerPrs>& theHighlighted)
 154 {
 155   ObjectPtr aDeltaObject;
 156   // 1. find the object in the highlighted list
 157   if (theHighlighted.size() > 0) {
 158     aDeltaObject = theHighlighted.first().object();
 159   }
 160   // 2. find it in the selected list by the selected point
 161   if (!aDeltaObject) {
 162     double aX, anY;
 163     gp_Pnt aPoint = PartSet_Tools::convertClickToPoint(thePoint, theView);
 164     PartSet_Tools::convertTo2D(aPoint, theSketch, theView, aX, anY);
 165
 166     FeaturePtr aFeature;
 167     double aMinDelta = -1;
 168     ModuleBase_ViewerPrs aPrs;
 169     foreach (ModuleBase_ViewerPrs aPrs, theSelected) {
 170       if (!aPrs.object())
 171         continue;
 172       FeaturePtr aFeature = ModelAPI_Feature::feature(aPrs.object());
 173       boost::shared_ptr<SketchPlugin_Feature> aSketchFeature = boost::dynamic_pointer_cast<
 174           SketchPlugin_Feature>(aFeature);
 175       if (!aSketchFeature)
 176         continue;
 177
 178       double aDelta = aSketchFeature->distanceToPoint(
 179           boost::shared_ptr<GeomAPI_Pnt2d>(new GeomAPI_Pnt2d(aX, anY)));
 180       if (aMinDelta < 0 || aMinDelta > aDelta) {
 181         aMinDelta = aDelta;
 182         // TODO aDeltaObject = aPrs.result();
 183       }
 184     }
 185   }
 186   // 3. if the object is not found, returns the first selected one
 187   if (!aDeltaObject && theSelected.size() > 0)
 188     aDeltaObject = theSelected.first().object();
 189
 190   return aDeltaObject;
 191 }
 192
 193 boost::shared_ptr<ModelAPI_Document> PartSet_Tools::document()
 194 {
 195   return ModelAPI_Session::get()->moduleDocument();
 196 }
 197
 198 boost::shared_ptr<GeomDataAPI_Point2D> PartSet_Tools::getFeaturePoint(FeaturePtr theFeature,
 199                                                                       double theX, double theY)
 200 {
 201   boost::shared_ptr<GeomAPI_Pnt2d> aClickedPoint = boost::shared_ptr<GeomAPI_Pnt2d>(
 202                                                                  new GeomAPI_Pnt2d(theX, theY));
 203   std::list<boost::shared_ptr<ModelAPI_Attribute> > anAttiributes =
 204                                     theFeature->data()->attributes(GeomDataAPI_Point2D::type());
 205   std::list<boost::shared_ptr<ModelAPI_Attribute> >::const_iterator anIt = anAttiributes.begin(),
 206                                                                     aLast = anAttiributes.end();
 207   boost::shared_ptr<GeomDataAPI_Point2D> aFPoint;
 208   for (; anIt != aLast && !aFPoint; anIt++) {
 209     boost::shared_ptr<GeomDataAPI_Point2D> aCurPoint = boost::dynamic_pointer_cast<
 210         GeomDataAPI_Point2D>(*anIt);
 211     if (aCurPoint && aCurPoint->pnt()->distance(aClickedPoint) < Precision::Confusion())
 212       aFPoint = aCurPoint;
 213   }
 214
 215   return aFPoint;
 216 }
 217
 218 void PartSet_Tools::setFeatureValue(FeaturePtr theFeature, double theValue,
 219                                     const std::string& theAttribute)
 220 {
 221   if (!theFeature)
 222     return;
 223   boost::shared_ptr<ModelAPI_Data> aData = theFeature->data();
 224   AttributeDoublePtr anAttribute = boost::dynamic_pointer_cast<ModelAPI_AttributeDouble>(
 225       aData->attribute(theAttribute));
 226   if (anAttribute)
 227     anAttribute->setValue(theValue);
 228 }
 229
 230 double PartSet_Tools::featureValue(FeaturePtr theFeature, const std::string& theAttribute,
 231                                    bool& isValid)
 232 {
 233   isValid = false;
 234   double aValue = 0;
 235   if (theFeature) {
 236     boost::shared_ptr<ModelAPI_Data> aData = theFeature->data();
 237     AttributeDoublePtr anAttribute = boost::dynamic_pointer_cast<ModelAPI_AttributeDouble>(
 238         aData->attribute(theAttribute));
 239     if (anAttribute) {
 240       aValue = anAttribute->value();
 241       isValid = true;
 242     }
 243   }
 244   return aValue;
 245 }
 246
 247 FeaturePtr PartSet_Tools::feature(FeaturePtr theFeature, const std::string& theAttribute,
 248                                   const std::string& theKind)
 249 {
 250   FeaturePtr aFeature;
 251   if (!theFeature)
 252     return aFeature;
 253
 254   boost::shared_ptr<ModelAPI_Data> aData = theFeature->data();
 255   boost::shared_ptr<ModelAPI_AttributeRefAttr> anAttr = boost::dynamic_pointer_cast<
 256       ModelAPI_AttributeRefAttr>(aData->attribute(theAttribute));
 257   if (anAttr) {
 258     aFeature = boost::dynamic_pointer_cast<ModelAPI_Feature>(anAttr->object());
 259     if (!theKind.empty() && aFeature && aFeature->getKind() != theKind) {
 260       aFeature = FeaturePtr();
 261     }
 262   }
 263   return aFeature;
 264 }
 265
 266 void PartSet_Tools::createConstraint(CompositeFeaturePtr theSketch,
 267                                      boost::shared_ptr<GeomDataAPI_Point2D> thePoint1,
 268                                      boost::shared_ptr<GeomDataAPI_Point2D> thePoint2)
 269 {
 270   FeaturePtr aFeature;
 271   if (theSketch) {
 272     aFeature = theSketch->addFeature(SketchPlugin_ConstraintCoincidence::ID());
 273   } else {
 274     boost::shared_ptr<ModelAPI_Document> aDoc = document();
 275     aFeature = aDoc->addFeature(SketchPlugin_ConstraintCoincidence::ID());
 276   }
 277
 278   boost::shared_ptr<ModelAPI_Data> aData = aFeature->data();
 279
 280   boost::shared_ptr<ModelAPI_AttributeRefAttr> aRef1 = boost::dynamic_pointer_cast<
 281       ModelAPI_AttributeRefAttr>(aData->attribute(SketchPlugin_Constraint::ENTITY_A()));
 282   aRef1->setAttr(thePoint1);
 283
 284   boost::shared_ptr<ModelAPI_AttributeRefAttr> aRef2 = boost::dynamic_pointer_cast<
 285       ModelAPI_AttributeRefAttr>(aData->attribute(SketchPlugin_Constraint::ENTITY_B()));
 286   aRef2->setAttr(thePoint2);
 287
 288   if (aFeature)  // TODO: generate an error if feature was not created
 289     aFeature->execute();
 290 }
 291
 292 void PartSet_Tools::setConstraints(CompositeFeaturePtr theSketch, FeaturePtr theFeature,
 293                                    const std::string& theAttribute, double theClickedX,
 294                                    double theClickedY)
 295 {
 296   // find a feature point by the selection mode
 297   //boost::shared_ptr<GeomDataAPI_Point2D> aPoint = featurePoint(theMode);
 298   boost::shared_ptr<GeomDataAPI_Point2D> aFeaturePoint = boost::dynamic_pointer_cast<
 299       GeomDataAPI_Point2D>(theFeature->data()->attribute(theAttribute));
 300   if (!aFeaturePoint)
 301     return;
 302
 303   // get all sketch features. If the point with the given coordinates belong to any sketch feature,
 304   // the constraint is created between the feature point and the found sketch point
 305   boost::shared_ptr<ModelAPI_Data> aData = theSketch->data();
 306   boost::shared_ptr<ModelAPI_AttributeRefList> aRefList = boost::dynamic_pointer_cast<
 307       ModelAPI_AttributeRefList>(aData->attribute(SketchPlugin_Sketch::FEATURES_ID()));
 308
 309   std::list<ObjectPtr> aFeatures = aRefList->list();
 310   std::list<ObjectPtr>::const_iterator anIt = aFeatures.begin(), aLast = aFeatures.end();
 311   std::list<boost::shared_ptr<ModelAPI_Attribute> > anAttiributes;
 312   boost::shared_ptr<GeomAPI_Pnt2d> aClickedPoint = boost::shared_ptr<GeomAPI_Pnt2d>(
 313       new GeomAPI_Pnt2d(theClickedX, theClickedY));
 314   for (; anIt != aLast; anIt++) {
 315     FeaturePtr aFeature = boost::dynamic_pointer_cast<ModelAPI_Feature>(*anIt);
 316     // find the given point in the feature attributes
 317     anAttiributes = aFeature->data()->attributes(GeomDataAPI_Point2D::type());
 318     std::list<boost::shared_ptr<ModelAPI_Attribute> >::const_iterator anIt = anAttiributes.begin(),
 319         aLast = anAttiributes.end();
 320     boost::shared_ptr<GeomDataAPI_Point2D> aFPoint;
 321     for (; anIt != aLast && !aFPoint; anIt++) {
 322       boost::shared_ptr<GeomDataAPI_Point2D> aCurPoint = boost::dynamic_pointer_cast<
 323           GeomDataAPI_Point2D>(*anIt);
 324       if (aCurPoint && aCurPoint->pnt()->distance(aClickedPoint) < Precision::Confusion())
 325         aFPoint = aCurPoint;
 326     }
 327     if (aFPoint)
 328       PartSet_Tools::createConstraint(theSketch, aFPoint, aFeaturePoint);
 329   }
 330 }
 331
 332 boost::shared_ptr<GeomAPI_Pln> PartSet_Tools::sketchPlane(CompositeFeaturePtr theSketch)
 333 {
 334   boost::shared_ptr<GeomAPI_Pln> aPlane;
 335   double aA, aB, aC, aD;
 336
 337   boost::shared_ptr<ModelAPI_Data> aData = theSketch->data();
 338   boost::shared_ptr<GeomDataAPI_Point> anOrigin = boost::dynamic_pointer_cast<GeomDataAPI_Point>(
 339       aData->attribute(SketchPlugin_Sketch::ORIGIN_ID()));
 340   boost::shared_ptr<GeomDataAPI_Dir> aNormal = boost::dynamic_pointer_cast<GeomDataAPI_Dir>(
 341       aData->attribute(SketchPlugin_Sketch::NORM_ID()));
 342   aA = aNormal->x();
 343   aB = aNormal->y();
 344   aC = aNormal->z();
 345   aD = 0;
 346
 347   aPlane = boost::shared_ptr<GeomAPI_Pln>(new GeomAPI_Pln(aA, aB, aC, aD));
 348   return aPlane;
 349 }
 350
 351 boost::shared_ptr<GeomAPI_Pnt> PartSet_Tools::point3D(boost::shared_ptr<GeomAPI_Pnt2d> thePoint2D,
 352                                                       CompositeFeaturePtr theSketch)
 353 {
 354   boost::shared_ptr<GeomAPI_Pnt> aPoint;
 355   if (!theSketch || !thePoint2D)
 356     return aPoint;
 357
 358   boost::shared_ptr<GeomDataAPI_Point> aC = boost::dynamic_pointer_cast<GeomDataAPI_Point>(
 359       theSketch->data()->attribute(SketchPlugin_Sketch::ORIGIN_ID()));
 360   boost::shared_ptr<GeomDataAPI_Dir> aX = boost::dynamic_pointer_cast<GeomDataAPI_Dir>(
 361       theSketch->data()->attribute(SketchPlugin_Sketch::DIRX_ID()));
 362   boost::shared_ptr<GeomDataAPI_Dir> aY = boost::dynamic_pointer_cast<GeomDataAPI_Dir>(
 363       theSketch->data()->attribute(SketchPlugin_Sketch::DIRY_ID()));
 364
 365   return thePoint2D->to3D(aC->pnt(), aX->dir(), aY->dir());
 366 }
 367
 368 bool PartSet_Tools::isConstraintFeature(const std::string& theKind)
 369 {
 370   return theKind == SketchPlugin_ConstraintDistance::ID()
 371       || theKind == SketchPlugin_ConstraintLength::ID()
 372       || theKind == SketchPlugin_ConstraintRadius::ID()
 373       || theKind == SketchPlugin_ConstraintRigid::ID();
 374 }
 375
 376 ResultPtr PartSet_Tools::createFixedObjectByEdge(const ModuleBase_ViewerPrs& thePrs, CompositeFeaturePtr theSketch)
 377 {
 378   TopoDS_Shape aShape = thePrs.shape();
 379   if (aShape.ShapeType() != TopAbs_EDGE)
 380     return ResultPtr();
 381
 382   // Check that we already have such external edge
 383   boost::shared_ptr<GeomAPI_Edge> aInEdge = boost::shared_ptr<GeomAPI_Edge>(new GeomAPI_Edge());
 384   aInEdge->setImpl(new TopoDS_Shape(aShape));
 385   ResultPtr aResult = findExternalEdge(theSketch, aInEdge);
 386   if (aResult)
 387     return aResult;
 388
 389   // If not found then we have to create new
 390   Standard_Real aStart, aEnd;
 391   Handle(V3d_View) aNullView;
 392   FeaturePtr aMyFeature;
 393
 394   Handle(Geom_Curve) aCurve = BRep_Tool::Curve(TopoDS::Edge(aShape), aStart, aEnd);
 395   GeomAdaptor_Curve aAdaptor(aCurve);
 396   if (aAdaptor.GetType() == GeomAbs_Line) {
 397     // Create line
 398     aMyFeature = theSketch->addFeature(SketchPlugin_Line::ID());
 399
 400     //DataPtr aData = myFeature->data();
 401     //boost::shared_ptr<GeomDataAPI_Point2D> anEndAttr =
 402     //  boost::dynamic_pointer_cast<GeomDataAPI_Point2D>(aData->attribute(SketchPlugin_Line::END_ID()));
 403
 404     //double aX, aY;
 405     //gp_Pnt Pnt1 = aAdaptor.Value(aStart);
 406     //convertTo2D(Pnt1, theSketch, aNullView, aX, aY);
 407     //setFeaturePoint(myFeature, aX, aY, SketchPlugin_Line::START_ID());
 408
 409     //gp_Pnt Pnt2 = aAdaptor.Value(aEnd);
 410     //convertTo2D(Pnt2, theSketch, aNullView, aX, aY);
 411     //setFeaturePoint(myFeature, aX, aY, SketchPlugin_Line::END_ID());
 412   } else if (aAdaptor.GetType() == GeomAbs_Circle) {
 413     if (aAdaptor.IsClosed()) {
 414       // Create circle
 415       aMyFeature = theSketch->addFeature(SketchPlugin_Circle::ID());
 416       //gp_Circ aCirc = aAdaptor.Circle();
 417       //gp_Pnt aCenter = aCirc.Location();
 418
 419       //double aX, aY;
 420       //convertTo2D(aCenter, theSketch, aNullView, aX, aY);
 421       //setFeaturePoint(myFeature, aX, aY, SketchPlugin_Circle::CENTER_ID());
 422       //setFeatureValue(myFeature, aCirc.Radius(), SketchPlugin_Circle::RADIUS_ID());
 423     } else {
 424       // Create arc
 425       aMyFeature = theSketch->addFeature(SketchPlugin_Arc::ID());
 426     }
 427   }
 428   if (aMyFeature) {
 429     DataPtr aData = aMyFeature->data();
 430     AttributeSelectionPtr anAttr =
 431       boost::dynamic_pointer_cast<ModelAPI_AttributeSelection>
 432       (aData->attribute(SketchPlugin_Feature::EXTERNAL_ID()));
 433
 434     ResultPtr aRes = boost::dynamic_pointer_cast<ModelAPI_Result>(thePrs.object());
 435     if (anAttr && aRes) {
 436       boost::shared_ptr<GeomAPI_Shape> anEdge(new GeomAPI_Shape);
 437       anEdge->setImpl(new TopoDS_Shape(aShape));
 438
 439       anAttr->setValue(aRes, anEdge);
 440
 441       aMyFeature->execute();
 442
 443       // fix this edge
 444       FeaturePtr aFix = theSketch->addFeature(SketchPlugin_ConstraintRigid::ID());
 445       aFix->data()->refattr(SketchPlugin_Constraint::ENTITY_A())->
 446         setObject(aMyFeature->lastResult());
 447
 448       return aMyFeature->lastResult();
 449     }
 450   }
 451   return ResultPtr();
 452 }
 453
 454 bool PartSet_Tools::isContainPresentation(const QList<ModuleBase_ViewerPrs>& theSelected,
 455                                           const ModuleBase_ViewerPrs& thePrs)
 456 {
 457   foreach (ModuleBase_ViewerPrs aPrs, theSelected) {
 458     if (aPrs.object() == thePrs.object())
 459       return true;
 460   }
 461   return false;
 462 }
 463
 464 ResultPtr PartSet_Tools::findExternalEdge(CompositeFeaturePtr theSketch, boost::shared_ptr<GeomAPI_Edge> theEdge)
 465 {
 466   for (int i = 0; i < theSketch->numberOfSubs(); i++) {
 467     FeaturePtr aFeature = theSketch->subFeature(i);
 468     boost::shared_ptr<SketchPlugin_Feature> aSketchFea =
 469       boost::dynamic_pointer_cast<SketchPlugin_Feature>(aFeature);
 470     if (aSketchFea) {
 471       if (aSketchFea->isExternal()) {
 472         std::list<ResultPtr> aResults = aSketchFea->results();
 473         std::list<ResultPtr>::const_iterator aIt;
 474         for (aIt = aResults.cbegin(); aIt != aResults.cend(); ++aIt) {
 475           ResultConstructionPtr aRes =
 476             boost::dynamic_pointer_cast<ModelAPI_ResultConstruction>(*aIt);
 477           if (aRes) {
 478             boost::shared_ptr<GeomAPI_Shape> aShape = aRes->shape();
 479             if (aShape) {
 480               if (theEdge->isEqual(aShape))
 481                 return aRes;
 482             }
 483           }
 484         }
 485       }
 486     }
 487   }
 488   return ResultPtr();
 489 }