src/SketchPlugin/SketchPlugin_ConstraintSplit.cpp

   1 // Copyright (C) 2014-20xx CEA/DEN, EDF R&D -->
   2
   3 // File:    SketchPlugin_ConstraintSplit.cpp
   4 // Created: 17 Jul 2016
   5 // Author:  Natalia ERMOLAEVA
   6
   7 #include "SketchPlugin_ConstraintSplit.h"
   8
   9 //#include <GeomAPI_Circ2d.h>
  10 //#include <GeomAPI_Dir2d.h>
  11 //#include <GeomAPI_Lin2d.h>
  12 //#include <GeomAPI_Pnt2d.h>
  13 //#include <GeomAPI_XY.h>
  14 //#include <GeomDataAPI_Point2D.h>
  15 //#include <ModelAPI_AttributeDouble.h>
  16 #include <ModelAPI_AttributeSelection.h>
  17 //#include <ModelAPI_AttributeRefList.h>
  18 //#include <ModelAPI_AttributeRefAttrList.h>
  19 //#include <ModelAPI_Data.h>
  20 //#include <ModelAPI_Events.h>
  21 //#include <ModelAPI_Session.h>
  22 //#include <ModelAPI_Validator.h>
  23 //
  24 //#include <SketchPlugin_Arc.h>
  25 //#include <SketchPlugin_Line.h>
  26 //#include <SketchPlugin_Point.h>
  27 //#include <SketchPlugin_Sketch.h>
  28 //#include <SketchPlugin_ConstraintCoincidence.h>
  29 //#include <SketchPlugin_ConstraintTangent.h>
  30 //#include <SketchPlugin_ConstraintRadius.h>
  31 //#include <SketchPlugin_Tools.h>
  32 //
  33 //#include <Events_Loop.h>
  34 //
  35 //#include <math.h>
  36 //
  37 //const double tolerance = 1.e-7;
  38 //const double paramTolerance = 1.e-4;
  39
  40 ///// \brief Attract specified point on theNewArc to the attribute of theFeature
  41 //static void recalculateAttributes(FeaturePtr theNewArc, const std::string& theNewArcAttribute,
  42 //  FeaturePtr theFeature, const std::string& theFeatureAttribute);
  43 //
  44 ///// \brief Calculates center of fillet arc and coordinates of tangency points
  45 //static void calculateFilletCenter(FeaturePtr theFeatureA, FeaturePtr theFeatureB,
  46 //                                  double theRadius, bool theNotInversed[2],
  47 //                                  std::shared_ptr<GeomAPI_XY>& theCenter,
  48 //                                  std::shared_ptr<GeomAPI_XY>& theTangentA,
  49 //                                  std::shared_ptr<GeomAPI_XY>& theTangentB);
  50 //
  51 ///// Get point on 1/3 length of edge from fillet point
  52 //static void getPointOnEdge(const FeaturePtr theFeature,
  53 //                           const std::shared_ptr<GeomAPI_Pnt2d> theFilletPoint,
  54 //                           std::shared_ptr<GeomAPI_Pnt2d>& thePoint);
  55 //
  56 ///// Get distance from point to feature
  57 //static double getProjectionDistance(const FeaturePtr theFeature,
  58 //                             const std::shared_ptr<GeomAPI_Pnt2d> thePoint);
  59 //
  60 ///// Get coincide edges for fillet
  61 //static std::set<FeaturePtr> getCoincides(const FeaturePtr& theConstraintCoincidence);
  62
  63 SketchPlugin_ConstraintSplit::SketchPlugin_ConstraintSplit()
  64 //: myListOfPointsChangedInCode(false),
  65 //  myRadiusChangedByUser(false),
  66 //  myRadiusChangedInCode(false),
  67 //  myRadiusInitialized(false)
  68 {
  69 }
  70
  71 void SketchPlugin_ConstraintSplit::initAttributes()
  72 {
  73   data()->addAttribute(SketchPlugin_Constraint::ENTITY_A(), ModelAPI_AttributeSelection::typeId());
  74
  75   //data()->addAttribute(SketchPlugin_Constraint::VALUE(), ModelAPI_AttributeDouble::typeId());
  76   //data()->addAttribute(SketchPlugin_Constraint::ENTITY_A(), ModelAPI_AttributeRefAttrList::typeId());
  77 }
  78
  79 void SketchPlugin_ConstraintSplit::execute()
  80 {
  81 /*  std::shared_ptr<ModelAPI_Data> aData = data();
  82
  83   // Check the base objects are initialized.
  84   AttributeRefAttrListPtr aPointsRefList = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttrList>(
  85     aData->attribute(SketchPlugin_Constraint::ENTITY_A()));
  86   if(!aPointsRefList->isInitialized()) {
  87     setError("Error: List of points is not initialized.");
  88     return;
  89   }
  90
  91   // Get fillet radius.
  92   double aFilletRadius = std::dynamic_pointer_cast<ModelAPI_AttributeDouble>(
  93     aData->attribute(SketchPlugin_Constraint::VALUE()))->value();
  94
  95   // Wait all constraints being created, then send update events
  96   static Events_ID anUpdateEvent = Events_Loop::eventByName(EVENT_OBJECT_UPDATED);
  97   bool isUpdateFlushed = Events_Loop::loop()->isFlushed(anUpdateEvent);
  98   if (isUpdateFlushed)
  99     Events_Loop::loop()->setFlushed(anUpdateEvent, false);
 100
 101   for(std::set<AttributePtr>::iterator aPointsIter = myNewPoints.begin();
 102       aPointsIter != myNewPoints.end();
 103       ++aPointsIter) {
 104     AttributePtr aPointAttr = *aPointsIter;
 105     std::shared_ptr<GeomDataAPI_Point2D> aFilletPoint2d = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(aPointAttr);
 106     if(!aFilletPoint2d.get()) {
 107       setError("Error: One of the selected points is empty.");
 108       return;
 109     }
 110     std::shared_ptr<GeomAPI_Pnt2d> aFilletPnt2d = aFilletPoint2d->pnt();
 111
 112     // Obtain base lines for fillet.
 113     bool anIsNeedNewObjects = true;
 114     FilletFeatures aFilletFeatures;
 115     std::map<AttributePtr, FilletFeatures>::iterator aPrevPointsIter = myPointFeaturesMap.find(aPointAttr);
 116     if(aPrevPointsIter != myPointFeaturesMap.end()) {
 117       anIsNeedNewObjects = false;
 118       aFilletFeatures = aPrevPointsIter->second;
 119     }
 120     FeaturePtr aBaseEdgeA, aBaseEdgeB;
 121     if(!anIsNeedNewObjects) {
 122       aBaseEdgeA = aFilletFeatures.baseEdgesState.front().first;
 123       aBaseEdgeB = aFilletFeatures.baseEdgesState.back().first;
 124     } else {
 125       // Obtain constraint coincidence for the fillet point.
 126       FeaturePtr aConstraintCoincidence;
 127       const std::set<AttributePtr>& aRefsList = aFilletPoint2d->owner()->data()->refsToMe();
 128       for(std::set<AttributePtr>::const_iterator anIt = aRefsList.cbegin(); anIt != aRefsList.cend(); ++anIt) {
 129         std::shared_ptr<ModelAPI_Attribute> anAttr = (*anIt);
 130         FeaturePtr aConstrFeature = std::dynamic_pointer_cast<ModelAPI_Feature>(anAttr->owner());
 131         if(aConstrFeature->getKind() == SketchPlugin_ConstraintCoincidence::ID()) {
 132           AttributeRefAttrPtr anAttrRefA = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
 133             aConstrFeature->attribute(SketchPlugin_ConstraintCoincidence::ENTITY_A()));
 134           AttributeRefAttrPtr anAttrRefB = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
 135             aConstrFeature->attribute(SketchPlugin_ConstraintCoincidence::ENTITY_B()));
 136           if(anAttrRefA.get() && !anAttrRefA->isObject()) {
 137             AttributePtr anAttrA = anAttrRefA->attr();
 138             if(aFilletPoint2d == anAttrA) {
 139               aConstraintCoincidence = aConstrFeature;
 140               break;
 141             }
 142           }
 143           if(anAttrRefB.get() && !anAttrRefB->isObject()) {
 144             AttributePtr anAttrB = anAttrRefB->attr();
 145             if(aFilletPoint2d == anAttrB) {
 146               aConstraintCoincidence = aConstrFeature;
 147               break;
 148             }
 149           }
 150         }
 151       }
 152
 153       if(!aConstraintCoincidence.get()) {
 154         setError("Error: No coincident edges at one of the selected points.");
 155         return;
 156       }
 157
 158       // Get coincide edges.
 159       std::set<FeaturePtr> aCoincides = getCoincides(aConstraintCoincidence);
 160       if(aCoincides.size() != 2) {
 161         setError("Error: One of the selected points does not have two suitable edges for fillet.");
 162         return;
 163       }
 164
 165       std::set<FeaturePtr>::iterator aLinesIt = aCoincides.begin();
 166       aBaseEdgeA = *aLinesIt++;
 167       aBaseEdgeB = *aLinesIt;
 168
 169       std::pair<FeaturePtr, bool> aBasePairA = std::make_pair(aBaseEdgeA, aBaseEdgeA->boolean(SketchPlugin_SketchEntity::AUXILIARY_ID())->value());
 170       std::pair<FeaturePtr, bool> aBasePairB = std::make_pair(aBaseEdgeB, aBaseEdgeB->boolean(SketchPlugin_SketchEntity::AUXILIARY_ID())->value());
 171       aFilletFeatures.baseEdgesState.push_back(aBasePairA);
 172       aFilletFeatures.baseEdgesState.push_back(aBasePairB);
 173     }
 174
 175     if(!aBaseEdgeA.get() || !aBaseEdgeB.get()) {
 176       setError("Error: One of the base edges is empty.");
 177       return;
 178     }
 179
 180     // Create new edges and arc if needed.
 181     FeaturePtr aResultEdgeA, aResultEdgeB, aResultArc;
 182     if(!anIsNeedNewObjects) {
 183       // Obtain features from the list.
 184       std::list<FeaturePtr>::iterator aResultEdgesIt = aFilletFeatures.resultEdges.begin();
 185       aResultEdgeA = *aResultEdgesIt++;
 186       aResultEdgeB = *aResultEdgesIt++;
 187       aResultArc = *aResultEdgesIt;
 188     } else {
 189       // Copy edges and create arc.
 190       aResultEdgeA = SketchPlugin_Sketch::addUniqueNamedCopiedFeature(aBaseEdgeA, sketch());
 191       aResultEdgeA->boolean(SketchPlugin_SketchEntity::AUXILIARY_ID())->setValue(false);
 192       aResultEdgeB = SketchPlugin_Sketch::addUniqueNamedCopiedFeature(aBaseEdgeB, sketch());
 193       aResultEdgeB->boolean(SketchPlugin_SketchEntity::AUXILIARY_ID())->setValue(false);
 194       aResultArc = sketch()->addFeature(SketchPlugin_Arc::ID());
 195
 196       aFilletFeatures.resultEdges.push_back(aResultEdgeA);
 197       aFilletFeatures.resultEdges.push_back(aResultEdgeB);
 198       aFilletFeatures.resultEdges.push_back(aResultArc);
 199     }
 200
 201     // Calculate arc attributes
 202     static const int aNbFeatures = 2;
 203     FeaturePtr aBaseFeatures[aNbFeatures] = {aBaseEdgeA, aBaseEdgeB};
 204     FeaturePtr aResultFeatures[aNbFeatures] = {aResultEdgeA, aResultEdgeB};
 205     std::shared_ptr<GeomAPI_Dir2d> aTangentDir[aNbFeatures]; // tangent directions of the features in coincident point
 206     bool isStart[aNbFeatures]; // indicates which point the features share
 207     std::shared_ptr<GeomAPI_Pnt2d> aStartEndPnt[aNbFeatures * 2]; // first pair of points relate to first feature, second pair -  to second
 208     std::string aFeatAttributes[aNbFeatures * 2]; // attributes of features
 209     for (int i = 0; i < aNbFeatures; i++) {
 210       std::string aStartAttr, aEndAttr;
 211       if (aResultFeatures[i]->getKind() == SketchPlugin_Line::ID()) {
 212         aStartAttr = SketchPlugin_Line::START_ID();
 213         aEndAttr = SketchPlugin_Line::END_ID();
 214       } else if (aResultFeatures[i]->getKind() == SketchPlugin_Arc::ID()) {
 215         aStartAttr = SketchPlugin_Arc::START_ID();
 216         aEndAttr = SketchPlugin_Arc::END_ID();
 217       } else { // wrong argument
 218         setError("Error: One of the points has wrong coincide feature");
 219         return;
 220       }
 221       aFeatAttributes[2*i] = aStartAttr;
 222       aStartEndPnt[2*i] = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
 223         aBaseFeatures[i]->attribute(aStartAttr))->pnt();
 224       aFeatAttributes[2*i+1] = aEndAttr;
 225       aStartEndPnt[2*i+1] = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
 226         aBaseFeatures[i]->attribute(aEndAttr))->pnt();
 227     }
 228     for (int aFeatInd = 0; aFeatInd < aNbFeatures; aFeatInd++) {
 229       for (int j = 0; j < 2; j++) // loop on start-end of each feature
 230         if (aStartEndPnt[aFeatInd * aNbFeatures + j]->distance(aFilletPnt2d) < 1.e-10) {
 231           isStart[aFeatInd] = (j==0);
 232           break;
 233         }
 234     }
 235     // tangent directions of the features
 236     for (int i = 0; i < aNbFeatures; i++) {
 237       std::shared_ptr<GeomAPI_XY> aDir;
 238       if (aResultFeatures[i]->getKind() == SketchPlugin_Line::ID()) {
 239         aDir = aStartEndPnt[2*i+1]->xy()->decreased(aStartEndPnt[2*i]->xy());
 240         if (!isStart[i])
 241           aDir = aDir->multiplied(-1.0);
 242       } else if (aResultFeatures[i]->getKind() == SketchPlugin_Arc::ID()) {
 243         std::shared_ptr<GeomAPI_Pnt2d> aCenterPoint = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
 244           aResultFeatures[i]->attribute(SketchPlugin_Arc::CENTER_ID()))->pnt();
 245         aDir = isStart[i] ? aStartEndPnt[2*i]->xy() : aStartEndPnt[2*i+1]->xy();
 246         aDir = aDir->decreased(aCenterPoint->xy());
 247
 248         double x = aDir->x();
 249         double y = aDir->y();
 250         aDir->setX(-y);
 251         aDir->setY(x);
 252         if (isStart[i] == std::dynamic_pointer_cast<SketchPlugin_Arc>(aBaseFeatures[i])->isReversed())
 253           aDir = aDir->multiplied(-1.0);
 254       }
 255       aTangentDir[i] = std::shared_ptr<GeomAPI_Dir2d>(new GeomAPI_Dir2d(aDir));
 256     }
 257
 258     // By default, the start point of fillet arc is connected to FeatureA,
 259     // and the end point - to FeatureB. But when the angle between TangentDirA and
 260     // TangentDirB greater 180 degree, the sequaence of features need to be reversed.
 261     double cosBA = aTangentDir[0]->cross(aTangentDir[1]); // cos(B-A), where A and B - angles between corresponding tanget direction and the X axis
 262     bool isReversed = cosBA > 0.0;
 263
 264     // Calculate fillet arc parameters
 265     std::shared_ptr<GeomAPI_XY> aCenter, aTangentPntA, aTangentPntB;
 266     calculateFilletCenter(aBaseEdgeA, aBaseEdgeB, aFilletRadius, isStart, aCenter, aTangentPntA, aTangentPntB);
 267     if(!aCenter.get() || !aTangentPntA.get() || !aTangentPntB.get()) {
 268       setError("Can not create fillet with the specified parameters.");
 269       return;
 270     }
 271     // update features
 272     std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
 273       aResultEdgeA->attribute(aFeatAttributes[isStart[0] ? 0 : 1]))->setValue(aTangentPntA->x(), aTangentPntA->y());
 274     aResultEdgeA->execute();
 275     std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
 276       aResultEdgeB->attribute(aFeatAttributes[2 + (isStart[1] ? 0 : 1)]))->setValue(aTangentPntB->x(), aTangentPntB->y());
 277     aResultEdgeB->execute();
 278     // update fillet arc: make the arc correct for sure, so, it is not needed to process the "attribute updated"
 279     // by arc; moreover, it may cause cyclicity in hte mechanism of updater
 280     aResultArc->data()->blockSendAttributeUpdated(true);
 281     std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
 282       aResultArc->attribute(SketchPlugin_Arc::CENTER_ID()))->setValue(aCenter->x(), aCenter->y());
 283     if(isReversed) {
 284       std::shared_ptr<GeomAPI_XY> aTmp = aTangentPntA;
 285       aTangentPntA = aTangentPntB;
 286       aTangentPntB = aTmp;
 287     }
 288     std::shared_ptr<GeomDataAPI_Point2D> aStartPoint = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
 289       aResultArc->attribute(SketchPlugin_Arc::START_ID()));
 290     std::shared_ptr<GeomDataAPI_Point2D> aEndPoint = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
 291       aResultArc->attribute(SketchPlugin_Arc::END_ID()));
 292     if(aStartPoint->isInitialized() && aEndPoint->isInitialized() &&
 293       (aStartPoint->pnt()->xy()->distance(aTangentPntA) > tolerance ||
 294        aEndPoint->pnt()->xy()->distance(aTangentPntB) > tolerance)) {
 295       std::dynamic_pointer_cast<SketchPlugin_Arc>(aResultArc)->setReversed(false);
 296     }
 297     aStartPoint->setValue(aTangentPntA->x(), aTangentPntA->y());
 298     aEndPoint->setValue(aTangentPntB->x(), aTangentPntB->y());
 299     aResultArc->data()->blockSendAttributeUpdated(false);
 300     aResultArc->execute();
 301
 302     if(anIsNeedNewObjects) {
 303       // Create list of additional constraints:
 304       // 1. Coincidence of boundary points of features (copied lines/arcs) and fillet arc
 305       // 1.1. coincidence
 306       FeaturePtr aConstraint = sketch()->addFeature(SketchPlugin_ConstraintCoincidence::ID());
 307       AttributeRefAttrPtr aRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
 308           aConstraint->attribute(SketchPlugin_Constraint::ENTITY_A()));
 309       aRefAttr->setAttr(aResultArc->attribute(SketchPlugin_Arc::START_ID()));
 310       aRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
 311           aConstraint->attribute(SketchPlugin_Constraint::ENTITY_B()));
 312       int aFeatInd = isReversed ? 1 : 0;
 313       int anAttrInd = (isReversed ? 2 : 0) + (isStart[isReversed ? 1 : 0] ? 0 : 1);
 314       aRefAttr->setAttr(aResultFeatures[aFeatInd]->attribute(aFeatAttributes[anAttrInd]));
 315       recalculateAttributes(aResultArc, SketchPlugin_Arc::START_ID(), aResultFeatures[aFeatInd], aFeatAttributes[anAttrInd]);
 316       aConstraint->execute();
 317       aFilletFeatures.resultConstraints.push_back(aConstraint);
 318       ModelAPI_EventCreator::get()->sendUpdated(aConstraint, anUpdateEvent);
 319       // 1.2. coincidence
 320       aConstraint = sketch()->addFeature(SketchPlugin_ConstraintCoincidence::ID());
 321       aRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
 322           aConstraint->attribute(SketchPlugin_Constraint::ENTITY_A()));
 323       aRefAttr->setAttr(aResultArc->attribute(SketchPlugin_Arc::END_ID()));
 324       aRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
 325           aConstraint->attribute(SketchPlugin_Constraint::ENTITY_B()));
 326       aFeatInd = isReversed ? 0 : 1;
 327       anAttrInd = (isReversed ? 0 : 2) + (isStart[isReversed ? 0 : 1] ? 0 : 1);
 328       aRefAttr->setAttr(aResultFeatures[aFeatInd]->attribute(aFeatAttributes[anAttrInd]));
 329       recalculateAttributes(aResultArc, SketchPlugin_Arc::END_ID(), aResultFeatures[aFeatInd], aFeatAttributes[anAttrInd]);
 330       aConstraint->execute();
 331       aFilletFeatures.resultConstraints.push_back(aConstraint);
 332       ModelAPI_EventCreator::get()->sendUpdated(aConstraint, anUpdateEvent);
 333       // 2. Fillet arc radius
 334       //aConstraint = sketch()->addFeature(SketchPlugin_ConstraintRadius::ID());
 335       //aRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
 336       //    aConstraint->attribute(SketchPlugin_Constraint::ENTITY_A()));
 337       //aRefAttr->setObject(aNewArc->lastResult());
 338       //std::dynamic_pointer_cast<ModelAPI_AttributeDouble>(
 339       //    aConstraint->attribute(SketchPlugin_Constraint::VALUE()))->setValue(aFilletRadius);
 340       //std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
 341       //    aConstraint->attribute(SketchPlugin_Constraint::FLYOUT_VALUE_PNT()))->setValue(
 342       //    isStart[0] ? aStartEndPnt[0] : aStartEndPnt[1]);
 343       //aConstraint->execute();
 344       //myProducedFeatures.push_back(aConstraint);
 345       //ModelAPI_EventCreator::get()->sendUpdated(aConstraint, anUpdateEvent);
 346       // 3. Tangency of fillet arc and features
 347       for (int i = 0; i < aNbFeatures; i++) {
 348         aConstraint = sketch()->addFeature(SketchPlugin_ConstraintTangent::ID());
 349         aRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
 350             aConstraint->attribute(SketchPlugin_Constraint::ENTITY_A()));
 351         aRefAttr->setObject(aResultArc->lastResult());
 352         aRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
 353             aConstraint->attribute(SketchPlugin_Constraint::ENTITY_B()));
 354         bool isArc = aResultFeatures[i]->getKind() == SketchPlugin_Arc::ID();
 355         aRefAttr->setObject(isArc ? aResultFeatures[i]->lastResult() : aResultFeatures[i]->firstResult());
 356         aConstraint->execute();
 357         aFilletFeatures.resultConstraints.push_back(aConstraint);
 358         ModelAPI_EventCreator::get()->sendUpdated(aConstraint, anUpdateEvent);
 359       }
 360       // 4. Coincidence of free boundaries of base and copied features
 361       for (int i = 0; i < aNbFeatures; i++) {
 362         anAttrInd = 2*i + (isStart[i] ? 1 : 0);
 363         aConstraint = sketch()->addFeature(SketchPlugin_ConstraintCoincidence::ID());
 364         aRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
 365             aConstraint->attribute(SketchPlugin_Constraint::ENTITY_A()));
 366         aRefAttr->setAttr(aBaseFeatures[i]->attribute(aFeatAttributes[anAttrInd]));
 367         aRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
 368             aConstraint->attribute(SketchPlugin_Constraint::ENTITY_B()));
 369         aRefAttr->setAttr(aResultFeatures[i]->attribute(aFeatAttributes[anAttrInd]));
 370         aFilletFeatures.resultConstraints.push_back(aConstraint);
 371       }
 372       // 4.1. Additional tangency constraints when the fillet is based on arcs.
 373       //      It is used to verify the created arc will be placed on a source.
 374       for (int i = 0; i < aNbFeatures; ++i) {
 375         if (aResultFeatures[i]->getKind() != SketchPlugin_Arc::ID())
 376           continue;
 377         aConstraint = sketch()->addFeature(SketchPlugin_ConstraintTangent::ID());
 378         aRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
 379             aConstraint->attribute(SketchPlugin_Constraint::ENTITY_A()));
 380         aRefAttr->setObject(aBaseFeatures[i]->lastResult());
 381         aRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
 382             aConstraint->attribute(SketchPlugin_Constraint::ENTITY_B()));
 383         aRefAttr->setObject(aResultFeatures[i]->lastResult());
 384         aConstraint->execute();
 385         aFilletFeatures.resultConstraints.push_back(aConstraint);
 386         ModelAPI_EventCreator::get()->sendUpdated(aConstraint, anUpdateEvent);
 387       }
 388       // 5. Tangent points should be placed on the base features
 389       for (int i = 0; i < aNbFeatures; i++) {
 390         anAttrInd = 2*i + (isStart[i] ? 0 : 1);
 391         aConstraint = sketch()->addFeature(SketchPlugin_ConstraintCoincidence::ID());
 392         aRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
 393             aConstraint->attribute(SketchPlugin_Constraint::ENTITY_A()));
 394         aRefAttr->setAttr(aResultFeatures[i]->attribute(aFeatAttributes[anAttrInd]));
 395         aRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
 396             aConstraint->attribute(SketchPlugin_Constraint::ENTITY_B()));
 397         aRefAttr->setObject(aBaseFeatures[i]->lastResult());
 398         aFilletFeatures.resultConstraints.push_back(aConstraint);
 399       }
 400       // make base features auxiliary
 401       aBaseEdgeA->boolean(SketchPlugin_SketchEntity::AUXILIARY_ID())->setValue(true);
 402       aBaseEdgeB->boolean(SketchPlugin_SketchEntity::AUXILIARY_ID())->setValue(true);
 403
 404       // exchange the naming IDs of newly created and old line that become auxiliary
 405       sketch()->exchangeIDs(aBaseEdgeA, aResultEdgeA);
 406       sketch()->exchangeIDs(aBaseEdgeB, aResultEdgeB);
 407
 408       // store point and features in the map.
 409       myPointFeaturesMap[aPointAttr] = aFilletFeatures;
 410     } else {
 411       // Update radius value
 412       int aNbSubs = sketch()->numberOfSubs();
 413       FeaturePtr aSubFeature;
 414       for (int aSub = 0; aSub < aNbSubs; aSub++) {
 415         aSubFeature = sketch()->subFeature(aSub);
 416         if (aSubFeature->getKind() != SketchPlugin_ConstraintRadius::ID())
 417           continue;
 418         AttributeRefAttrPtr aRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
 419             aSubFeature->attribute(SketchPlugin_Constraint::ENTITY_A()));
 420         if (!aRefAttr || !aRefAttr->isObject())
 421           continue;
 422         FeaturePtr aFeature = ModelAPI_Feature::feature(aRefAttr->object());
 423         if (aFeature == aResultArc) {
 424           AttributeDoublePtr aRadius = std::dynamic_pointer_cast<ModelAPI_AttributeDouble>(
 425             aSubFeature->attribute(SketchPlugin_Constraint::VALUE()));
 426           aRadius->setValue(aFilletRadius);
 427           break;
 428         }
 429       }
 430     }
 431   }
 432
 433   // Send events to update the sub-features by the solver.
 434   if(isUpdateFlushed) {
 435     Events_Loop::loop()->setFlushed(anUpdateEvent, true);
 436   }
 437 */
 438 }
 439
 440 void SketchPlugin_ConstraintSplit::attributeChanged(const std::string& theID)
 441 {
 442 /*  if(theID == SketchPlugin_Constraint::ENTITY_A()) {
 443     if(myListOfPointsChangedInCode) {
 444       return;
 445     }
 446
 447     // Clear results.
 448     clearResults();
 449
 450     // Clear list of new points.
 451     myNewPoints.clear();
 452
 453     // Get list of points for fillets and current radius.
 454     AttributeRefAttrListPtr aRefListOfFilletPoints = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttrList>(
 455       data()->attribute(SketchPlugin_Constraint::ENTITY_A()));
 456     AttributeDoublePtr aRadiusAttribute = real(VALUE());
 457     int aListSize = aRefListOfFilletPoints->size();
 458     if(aListSize == 0 && !myRadiusChangedByUser) {
 459       // If list is empty reset radius to zero (if it was not changed by user).
 460       myRadiusChangedInCode = true;
 461       aRadiusAttribute->setValue(0);
 462       myRadiusChangedInCode = false;
 463       return;
 464     }
 465
 466     // Iterate over points to get base lines an calculate radius for fillets.
 467     double aMinimumRadius = 0;
 468     std::list<std::pair<ObjectPtr, AttributePtr>> aSelectedPointsList = aRefListOfFilletPoints->list();
 469     std::list<std::pair<ObjectPtr, AttributePtr>>::iterator anIter = aSelectedPointsList.begin();
 470     std::set<AttributePtr> aPointsToSkeep;
 471     for(int anIndex = 0; anIndex < aListSize; anIndex++, anIter++) {
 472       AttributePtr aFilletPointAttr = (*anIter).second;
 473       std::shared_ptr<GeomDataAPI_Point2D> aFilletPoint2D =
 474         std::dynamic_pointer_cast<GeomDataAPI_Point2D>(aFilletPointAttr);
 475       if(!aFilletPoint2D.get()) {
 476         myNewPoints.clear();
 477         setError("Error: One of the selected points is invalid.");
 478         return;
 479       }
 480
 481       // If point or coincident point is already in list remove it from attribute.
 482       if(aPointsToSkeep.find(aFilletPointAttr) != aPointsToSkeep.end()) {
 483         myListOfPointsChangedInCode = true;
 484         aRefListOfFilletPoints->remove(aFilletPointAttr);
 485         myListOfPointsChangedInCode = false;
 486         continue;
 487       }
 488
 489       // Obtain constraint coincidence for the fillet point.
 490       FeaturePtr aConstraintCoincidence;
 491       const std::set<AttributePtr>& aRefsList = aFilletPointAttr->owner()->data()->refsToMe();
 492       for(std::set<AttributePtr>::const_iterator anIt = aRefsList.cbegin(); anIt != aRefsList.cend(); ++anIt) {
 493         std::shared_ptr<ModelAPI_Attribute> anAttr = (*anIt);
 494         FeaturePtr aConstrFeature = std::dynamic_pointer_cast<ModelAPI_Feature>(anAttr->owner());
 495         if(aConstrFeature->getKind() == SketchPlugin_ConstraintCoincidence::ID()) {
 496           AttributeRefAttrPtr anAttrRefA = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
 497             aConstrFeature->attribute(SketchPlugin_ConstraintCoincidence::ENTITY_A()));
 498           AttributeRefAttrPtr anAttrRefB = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
 499             aConstrFeature->attribute(SketchPlugin_ConstraintCoincidence::ENTITY_B()));
 500           if(anAttrRefA.get()) {
 501             AttributePtr anAttrA = anAttrRefA->attr();
 502             if(aFilletPointAttr == anAttrA) {
 503               aConstraintCoincidence = aConstrFeature;
 504               break;
 505             }
 506           }
 507           if(anAttrRefB.get()) {
 508             AttributePtr anAttrB = anAttrRefB->attr();
 509             if(aFilletPointAttr == anAttrB) {
 510               aConstraintCoincidence = aConstrFeature;
 511               break;
 512             }
 513           }
 514         }
 515       }
 516
 517       if(!aConstraintCoincidence.get()) {
 518         myNewPoints.clear();
 519         setError("Error: No coincident edges at one of the selected points.");
 520         return;
 521       }
 522
 523       // Get coincides from constraint.
 524       std::set<FeaturePtr> aCoincides;
 525
 526
 527       SketchPlugin_Tools::findCoincidences(aConstraintCoincidence,
 528                                            SketchPlugin_ConstraintCoincidence::ENTITY_A(),
 529                                            aCoincides);
 530       SketchPlugin_Tools::findCoincidences(aConstraintCoincidence,
 531                                            SketchPlugin_ConstraintCoincidence::ENTITY_B(),
 532                                            aCoincides);
 533
 534       // Remove points from set of coincides. Also get all attributes which is equal to this point to exclude it.
 535       std::shared_ptr<GeomAPI_Pnt2d> aFilletPnt2d = aFilletPoint2D->pnt();
 536       std::set<FeaturePtr> aNewSetOfCoincides;
 537       for(std::set<FeaturePtr>::iterator anIt = aCoincides.begin(); anIt != aCoincides.end(); ++anIt) {
 538         std::string aFeatureKind = (*anIt)->getKind();
 539         if(aFeatureKind == SketchPlugin_Point::ID()) {
 540           AttributePtr anAttr = (*anIt)->attribute(SketchPlugin_Point::COORD_ID());
 541           std::shared_ptr<GeomDataAPI_Point2D> aPoint2D =
 542             std::dynamic_pointer_cast<GeomDataAPI_Point2D>(anAttr);
 543           if(aPoint2D.get() && aFilletPnt2d->isEqual(aPoint2D->pnt())) {
 544             aPointsToSkeep.insert(anAttr);
 545           }
 546         } else if(aFeatureKind == SketchPlugin_Line::ID()) {
 547           AttributePtr anAttrStart = (*anIt)->attribute(SketchPlugin_Line::START_ID());
 548           std::shared_ptr<GeomDataAPI_Point2D> aPointStart2D =
 549             std::dynamic_pointer_cast<GeomDataAPI_Point2D>(anAttrStart);
 550           if(aPointStart2D.get() && aFilletPnt2d->isEqual(aPointStart2D->pnt())) {
 551             aPointsToSkeep.insert(anAttrStart);
 552           }
 553           AttributePtr anAttrEnd = (*anIt)->attribute(SketchPlugin_Line::END_ID());
 554           std::shared_ptr<GeomDataAPI_Point2D> aPointEnd2D =
 555             std::dynamic_pointer_cast<GeomDataAPI_Point2D>(anAttrEnd);
 556           if(aPointEnd2D.get() && aFilletPnt2d->isEqual(aPointEnd2D->pnt())) {
 557             aPointsToSkeep.insert(anAttrEnd);
 558           }
 559           aNewSetOfCoincides.insert(*anIt);
 560         } else if(aFeatureKind == SketchPlugin_Arc::ID() ) {
 561           AttributePtr anAttrCenter = (*anIt)->attribute(SketchPlugin_Arc::CENTER_ID());
 562           std::shared_ptr<GeomDataAPI_Point2D> aPointCenter2D =
 563             std::dynamic_pointer_cast<GeomDataAPI_Point2D>(anAttrCenter);
 564           if(aPointCenter2D.get() && aFilletPnt2d->isEqual(aPointCenter2D->pnt())) {
 565             aPointsToSkeep.insert(anAttrCenter);
 566             continue;
 567           }
 568           AttributePtr anAttrStart = (*anIt)->attribute(SketchPlugin_Arc::START_ID());
 569           std::shared_ptr<GeomDataAPI_Point2D> aPointStart2D =
 570             std::dynamic_pointer_cast<GeomDataAPI_Point2D>(anAttrStart);
 571           if(aPointStart2D.get() && aFilletPnt2d->isEqual(aPointStart2D->pnt())) {
 572             aPointsToSkeep.insert(anAttrStart);
 573           }
 574           AttributePtr anAttrEnd = (*anIt)->attribute(SketchPlugin_Arc::END_ID());
 575           std::shared_ptr<GeomDataAPI_Point2D> aPointEnd2D =
 576             std::dynamic_pointer_cast<GeomDataAPI_Point2D>(anAttrEnd);
 577           if(aPointEnd2D.get() && aFilletPnt2d->isEqual(aPointEnd2D->pnt())) {
 578             aPointsToSkeep.insert(anAttrEnd);
 579           }
 580           aNewSetOfCoincides.insert(*anIt);
 581         }
 582       }
 583       aCoincides = aNewSetOfCoincides;
 584
 585       // If we still have more than two coincides remove auxilary entities from set of coincides.
 586       if(aCoincides.size() > 2) {
 587         aNewSetOfCoincides.clear();
 588         for(std::set<FeaturePtr>::iterator anIt = aCoincides.begin(); anIt != aCoincides.end(); ++anIt) {
 589           if(!(*anIt)->boolean(SketchPlugin_SketchEntity::AUXILIARY_ID())->value()) {
 590             aNewSetOfCoincides.insert(*anIt);
 591           }
 592         }
 593         aCoincides = aNewSetOfCoincides;
 594       }
 595
 596       if(aCoincides.size() != 2) {
 597         myNewPoints.clear();
 598         setError("Error: One of the selected points does not have two suitable edges for fillet.");
 599         return;
 600       }
 601
 602       // Store base point for fillet.
 603       aPointsToSkeep.insert(aFilletPointAttr);
 604       myNewPoints.insert(aFilletPointAttr);
 605
 606       // Get base lines for fillet.
 607       FeaturePtr anOldFeatureA, anOldFeatureB;
 608       std::set<FeaturePtr>::iterator aLinesIt = aCoincides.begin();
 609       anOldFeatureA = *aLinesIt++;
 610       anOldFeatureB = *aLinesIt;
 611
 612       // Getting radius value if it was not changed by user.
 613       if(!myRadiusChangedByUser) {
 614         // Getting points located at 1/3 of edge length from fillet point.
 615         std::shared_ptr<GeomAPI_Pnt2d> aFilletPnt2d = aFilletPoint2D->pnt();
 616         std::shared_ptr<GeomAPI_Pnt2d> aPntA, aPntB;
 617         getPointOnEdge(anOldFeatureA, aFilletPnt2d, aPntA);
 618         getPointOnEdge(anOldFeatureB, aFilletPnt2d, aPntB);
 619
 620         /// Getting distances.
 621         double aDistanceA = getProjectionDistance(anOldFeatureB, aPntA);
 622         double aDistanceB = getProjectionDistance(anOldFeatureA, aPntB);
 623         double aRadius = aDistanceA < aDistanceB ? aDistanceA / 2.0 : aDistanceB / 2.0;
 624         aMinimumRadius = aMinimumRadius == 0 ? aRadius : aRadius < aMinimumRadius ? aRadius : aMinimumRadius;
 625       }
 626     }
 627
 628     // Set new default radius if it was not changed by user.
 629     if(!myRadiusChangedByUser) {
 630       myRadiusChangedInCode = true;
 631       aRadiusAttribute->setValue(aMinimumRadius);
 632       myRadiusChangedInCode = false;
 633     }
 634
 635   } else if(theID == SketchPlugin_Constraint::VALUE()) {
 636     if(myRadiusInitialized && !myRadiusChangedInCode) {
 637       myRadiusChangedByUser = true;
 638     }
 639     if(!myRadiusInitialized) {
 640       myRadiusInitialized = true;
 641     }
 642   }
 643 */
 644 }
 645
 646 //AISObjectPtr SketchPlugin_ConstraintSplit::getAISObject(AISObjectPtr thePrevious)
 647 //{
 648 //  if (!sketch())
 649 //    return thePrevious;
 650 //
 651 //  AISObjectPtr anAIS = thePrevious;
 652 //  /// TODO: Equal constraint presentation should be put here
 653 //  return anAIS;
 654 //}
 655
 656 bool SketchPlugin_ConstraintSplit::isMacro() const
 657 {
 658   return true;
 659 }
 660
 661 //void SketchPlugin_ConstraintSplit::clearResults()
 662 //{
 663 ///*  // Clear auxiliary flag on initial objects.
 664 //  for(std::map<AttributePtr, FilletFeatures>::iterator aPointsIter = myPointFeaturesMap.begin();
 665 //      aPointsIter != myPointFeaturesMap.end();) {
 666 //    const FilletFeatures& aFilletFeatures = aPointsIter->second;
 667 //    std::list<std::pair<FeaturePtr, bool>>::const_iterator aFeatureIt;
 668 //    for(aFeatureIt = aFilletFeatures.baseEdgesState.cbegin();
 669 //        aFeatureIt != aFilletFeatures.baseEdgesState.cend();
 670 //        ++aFeatureIt) {
 671 //      aFeatureIt->first->boolean(SketchPlugin_SketchEntity::AUXILIARY_ID())->setValue(aFeatureIt->second);
 672 //    }
 673 //    ++aPointsIter;
 674 //  }
 675 //
 676 //  // And remove all produced features.
 677 //  DocumentPtr aDoc = sketch()->document();
 678 //  for(std::map<AttributePtr, FilletFeatures>::iterator aPointsIter = myPointFeaturesMap.begin();
 679 //      aPointsIter != myPointFeaturesMap.end();) {
 680 //    // Remove all produced constraints.
 681 //    const FilletFeatures& aFilletFeatures = aPointsIter->second;
 682 //    std::list<FeaturePtr>::const_iterator aFeatureIt;
 683 //    for(aFeatureIt = aFilletFeatures.resultConstraints.cbegin();
 684 //        aFeatureIt != aFilletFeatures.resultConstraints.cend();
 685 //        ++aFeatureIt) {
 686 //      aDoc->removeFeature(*aFeatureIt);
 687 //    }
 688 //
 689 //    // Remove all result edges.
 690 //    for(aFeatureIt = aFilletFeatures.resultEdges.cbegin();
 691 //        aFeatureIt != aFilletFeatures.resultEdges.cend();
 692 //        ++aFeatureIt) {
 693 //      aDoc->removeFeature(*aFeatureIt);
 694 //    }
 695 //
 696 //    // Remove point from map.
 697 //    myPointFeaturesMap.erase(aPointsIter++);
 698 //  }
 699 //*/
 700 //};
 701 //
 702 //
 703 //// =========   Auxiliary functions   =================
 704 //void recalculateAttributes(FeaturePtr theNewArc,  const std::string& theNewArcAttribute,
 705 //                           FeaturePtr theFeature, const std::string& theFeatureAttribute)
 706 //{
 707 //  std::shared_ptr<GeomAPI_Pnt2d> anArcPoint = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
 708 //      theNewArc->attribute(theNewArcAttribute))->pnt();
 709 //  std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
 710 //      theFeature->attribute(theFeatureAttribute))->setValue(anArcPoint->x(), anArcPoint->y());
 711 //}
 712
 713 /*/// \brief Find intersections of lines shifted along normal direction
 714 void possibleFilletCenterLineLine(
 715     std::shared_ptr<GeomAPI_XY> thePointA, std::shared_ptr<GeomAPI_Dir2d> theDirA,
 716     std::shared_ptr<GeomAPI_XY> thePointB, std::shared_ptr<GeomAPI_Dir2d> theDirB,
 717     double theRadius, std::list< std::shared_ptr<GeomAPI_XY> >& theCenters)
 718 {
 719   std::shared_ptr<GeomAPI_Dir2d> aDirAT(new GeomAPI_Dir2d(-theDirA->y(), theDirA->x()));
 720   std::shared_ptr<GeomAPI_Dir2d> aDirBT(new GeomAPI_Dir2d(-theDirB->y(), theDirB->x()));
 721   std::shared_ptr<GeomAPI_XY> aPntA, aPntB;
 722   double aDet = theDirA->cross(theDirB);
 723   for (double aStepA = -1.0; aStepA <= 1.0; aStepA += 2.0) {
 724     aPntA = thePointA->added(aDirAT->xy()->multiplied(aStepA * theRadius));
 725     for (double aStepB = -1.0; aStepB <= 1.0; aStepB += 2.0) {
 726       aPntB = thePointB->added(aDirBT->xy()->multiplied(aStepB * theRadius));
 727       double aVX = aDirAT->xy()->dot(aPntA);
 728       double aVY = aDirBT->xy()->dot(aPntB);
 729       std::shared_ptr<GeomAPI_XY> aPoint(new GeomAPI_XY(
 730           (theDirB->x() * aVX - theDirA->x() * aVY) / aDet,
 731           (theDirB->y() * aVX - theDirA->y() * aVY) / aDet));
 732       theCenters.push_back(aPoint);
 733     }
 734   }
 735 }
 736
 737 /// \brief Find intersections of line shifted along normal direction in both sides
 738 ///        and a circle with extended radius
 739 void possibleFilletCenterLineArc(
 740     std::shared_ptr<GeomAPI_XY> theStartLine, std::shared_ptr<GeomAPI_Dir2d> theDirLine,
 741     std::shared_ptr<GeomAPI_XY> theCenterArc, double theRadiusArc,
 742     double theRadius, std::list< std::shared_ptr<GeomAPI_XY> >& theCenters)
 743 {
 744   std::shared_ptr<GeomAPI_Dir2d> aDirT(new GeomAPI_Dir2d(-theDirLine->y(), theDirLine->x()));
 745   std::shared_ptr<GeomAPI_XY> aPnt;
 746   double aDirNorm2 = theDirLine->dot(theDirLine);
 747   double aRad = 0.0;
 748   double aDirX = theDirLine->x();
 749   double aDirX2 = theDirLine->x() * theDirLine->x();
 750   double aDirY2 = theDirLine->y() * theDirLine->y();
 751   double aDirXY = theDirLine->x() * theDirLine->y();
 752   for (double aStepA = -1.0; aStepA <= 1.0; aStepA += 2.0) {
 753     aPnt = theStartLine->added(aDirT->xy()->multiplied(aStepA * theRadius));
 754     double aCoeff = aDirT->xy()->dot(aPnt->decreased(theCenterArc));
 755     double aCoeff2 = aCoeff * aCoeff;
 756     for (double aStepB = -1.0; aStepB <= 1.0; aStepB += 2.0) {
 757       aRad = theRadiusArc + aStepB * theRadius;
 758       double aD = aRad * aRad * aDirNorm2 - aCoeff2;
 759       if (aD < 0.0)
 760         continue;
 761       double aDs = sqrt(aD);
 762       double x1 = theCenterArc->x() + (aCoeff * aDirT->x() - aDirT->y() * aDs) / aDirNorm2;
 763       double x2 = theCenterArc->x() + (aCoeff * aDirT->x() + aDirT->y() * aDs) / aDirNorm2;
 764       double y1 = (aDirX2 * aPnt->y() + aDirY2 * theCenterArc->y() -
 765           aDirXY * (aPnt->x() - theCenterArc->x()) - theDirLine->y() * aDs) / aDirNorm2;
 766       double y2 = (aDirX2 * aPnt->y() + aDirY2 * theCenterArc->y() -
 767           aDirXY * (aPnt->x() - theCenterArc->x()) + theDirLine->y() * aDs) / aDirNorm2;
 768
 769       std::shared_ptr<GeomAPI_XY> aPoint1(new GeomAPI_XY(x1, y1));
 770       theCenters.push_back(aPoint1);
 771       std::shared_ptr<GeomAPI_XY> aPoint2(new GeomAPI_XY(x2, y2));
 772       theCenters.push_back(aPoint2);
 773     }
 774   }
 775 }
 776
 777 /// \brief Find intersections of two circles with extended radii
 778 void possibleFilletCenterArcArc(
 779     std::shared_ptr<GeomAPI_XY> theCenterA, double theRadiusA,
 780     std::shared_ptr<GeomAPI_XY> theCenterB, double theRadiusB,
 781     double theRadius, std::list< std::shared_ptr<GeomAPI_XY> >& theCenters)
 782 {
 783   std::shared_ptr<GeomAPI_XY> aCenterDir = theCenterB->decreased(theCenterA);
 784   double aCenterDist2 = aCenterDir->dot(aCenterDir);
 785   double aCenterDist = sqrt(aCenterDist2);
 786
 787   double aRadA, aRadB;
 788   for (double aStepA = -1.0; aStepA <= 1.0; aStepA += 2.0) {
 789     aRadA = theRadiusA + aStepA * theRadius;
 790     for (double aStepB = -1.0; aStepB <= 1.0; aStepB += 2.0) {
 791       aRadB = theRadiusB + aStepB * theRadius;
 792       if (aRadA + aRadB < aCenterDist || fabs(aRadA - aRadB) > aCenterDist)
 793         continue; // there is no intersections
 794
 795       double aMedDist = (aRadA * aRadA - aRadB * aRadB + aCenterDist2) / (2.0 * aCenterDist);
 796       double aHeight = sqrt(aRadA * aRadA - aMedDist * aMedDist);
 797
 798       double x1 = theCenterA->x() + (aMedDist * aCenterDir->x() + aCenterDir->y() * aHeight) / aCenterDist;
 799       double y1 = theCenterA->y() + (aMedDist * aCenterDir->y() - aCenterDir->x() * aHeight) / aCenterDist;
 800
 801       double x2 = theCenterA->x() + (aMedDist * aCenterDir->x() - aCenterDir->y() * aHeight) / aCenterDist;
 802       double y2 = theCenterA->y() + (aMedDist * aCenterDir->y() + aCenterDir->x() * aHeight) / aCenterDist;
 803
 804       std::shared_ptr<GeomAPI_XY> aPoint1(new GeomAPI_XY(x1, y1));
 805       theCenters.push_back(aPoint1);
 806       std::shared_ptr<GeomAPI_XY> aPoint2(new GeomAPI_XY(x2, y2));
 807       theCenters.push_back(aPoint2);
 808     }
 809   }
 810 }
 811
 812 void calculateFilletCenter(FeaturePtr theFeatureA, FeaturePtr theFeatureB,
 813                            double theRadius, bool theNotInversed[2],
 814                            std::shared_ptr<GeomAPI_XY>& theCenter,
 815                            std::shared_ptr<GeomAPI_XY>& theTangentA,
 816                            std::shared_ptr<GeomAPI_XY>& theTangentB)
 817 {
 818   static const int aNbFeatures = 2;
 819   FeaturePtr aFeature[aNbFeatures] = {theFeatureA, theFeatureB};
 820   std::shared_ptr<GeomAPI_XY> aStart[aNbFeatures], aEnd[aNbFeatures], aCenter[aNbFeatures];
 821   std::shared_ptr<GeomDataAPI_Point2D> aStartPoint, aEndPoint;
 822
 823   for (int i = 0; i < aNbFeatures; i++) {
 824     if (aFeature[i]->getKind() == SketchPlugin_Line::ID()) {
 825       aStartPoint = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
 826           aFeature[i]->attribute(SketchPlugin_Line::START_ID()));
 827       aEndPoint = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
 828           aFeature[i]->attribute(SketchPlugin_Line::END_ID()));
 829     } else if (aFeature[i]->getKind() == SketchPlugin_Arc::ID()) {
 830       aStartPoint = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
 831           aFeature[i]->attribute(SketchPlugin_Arc::START_ID()));
 832       aEndPoint = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
 833           aFeature[i]->attribute(SketchPlugin_Arc::END_ID()));
 834       aCenter[i] = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
 835           aFeature[i]->attribute(SketchPlugin_Arc::CENTER_ID()))->pnt()->xy();
 836     } else
 837       return;
 838     aStart[i] = std::shared_ptr<GeomAPI_XY>(theNotInversed[i] ?
 839         new GeomAPI_XY(aStartPoint->x(), aStartPoint->y()) :
 840         new GeomAPI_XY(aEndPoint->x(), aEndPoint->y()));
 841     aEnd[i] = std::shared_ptr<GeomAPI_XY>(theNotInversed[i] ?
 842         new GeomAPI_XY(aEndPoint->x(), aEndPoint->y()) :
 843         new GeomAPI_XY(aStartPoint->x(), aStartPoint->y()));
 844   }
 845
 846   if (theFeatureA->getKind() == SketchPlugin_Line::ID() &&
 847       theFeatureB->getKind() == SketchPlugin_Line::ID()) {
 848     std::shared_ptr<GeomAPI_Dir2d> aDir[2];
 849     std::shared_ptr<GeomAPI_Dir2d> aDirT[2];
 850     for (int i = 0; i < aNbFeatures; i++) {
 851       aDir[i] = std::shared_ptr<GeomAPI_Dir2d>(new GeomAPI_Dir2d(aEnd[i]->decreased(aStart[i])));
 852       aDirT[i] = std::shared_ptr<GeomAPI_Dir2d>(new GeomAPI_Dir2d(-aDir[i]->y(), aDir[i]->x()));
 853     }
 854
 855     // get and filter possible centers
 856     std::list< std::shared_ptr<GeomAPI_XY> > aSuspectCenters;
 857     possibleFilletCenterLineLine(aStart[0], aDir[0], aStart[1], aDir[1], theRadius, aSuspectCenters);
 858     double aDot = 0.0;
 859     std::list< std::shared_ptr<GeomAPI_XY> >::iterator anIt = aSuspectCenters.begin();
 860     for (; anIt != aSuspectCenters.end(); anIt++) {
 861       aDot = aDirT[0]->xy()->dot(aStart[0]->decreased(*anIt));
 862       theTangentA = (*anIt)->added(aDirT[0]->xy()->multiplied(aDot));
 863       if (theTangentA->decreased(aStart[0])->dot(aDir[0]->xy()) < 0.0)
 864         continue; // incorrect position
 865       aDot = aDirT[1]->xy()->dot(aStart[1]->decreased(*anIt));
 866       theTangentB = (*anIt)->added(aDirT[1]->xy()->multiplied(aDot));
 867       if (theTangentB->decreased(aStart[1])->dot(aDir[1]->xy()) < 0.0)
 868         continue; // incorrect position
 869       // the center is found, stop searching
 870       theCenter = *anIt;
 871       return;
 872     }
 873   } else if ((theFeatureA->getKind() == SketchPlugin_Arc::ID() &&
 874       theFeatureB->getKind() == SketchPlugin_Line::ID()) ||
 875       (theFeatureA->getKind() == SketchPlugin_Line::ID() &&
 876       theFeatureB->getKind() == SketchPlugin_Arc::ID())) {
 877     int aLineInd = theFeatureA->getKind() == SketchPlugin_Line::ID() ? 0 : 1;
 878     double anArcRadius = aStart[1-aLineInd]->distance(aCenter[1-aLineInd]);
 879     std::shared_ptr<GeomAPI_Dir2d> aDirLine = std::shared_ptr<GeomAPI_Dir2d>(
 880         new GeomAPI_Dir2d(aEnd[aLineInd]->decreased(aStart[aLineInd])));
 881     std::shared_ptr<GeomAPI_Dir2d> aDirT = std::shared_ptr<GeomAPI_Dir2d>(
 882         new GeomAPI_Dir2d(-aDirLine->y(), aDirLine->x()));
 883
 884     std::shared_ptr<GeomAPI_Dir2d> aStartArcDir = std::shared_ptr<GeomAPI_Dir2d>(
 885         new GeomAPI_Dir2d(aStart[1-aLineInd]->decreased(aCenter[1-aLineInd])));
 886     std::shared_ptr<GeomAPI_Dir2d> aEndArcDir = std::shared_ptr<GeomAPI_Dir2d>(
 887         new GeomAPI_Dir2d(aEnd[1-aLineInd]->decreased(aCenter[1-aLineInd])));
 888     double anArcAngle = aEndArcDir->angle(aStartArcDir);
 889
 890     // get possible centers and filter them
 891     std::list< std::shared_ptr<GeomAPI_XY> > aSuspectCenters;
 892     possibleFilletCenterLineArc(aStart[aLineInd], aDirLine, aCenter[1-aLineInd], anArcRadius, theRadius, aSuspectCenters);
 893     double aDot = 0.0;
 894     // the line is forward into the arc
 895     double innerArc = aCenter[1-aLineInd]->decreased(aStart[aLineInd])->dot(aDirLine->xy());
 896     std::shared_ptr<GeomAPI_XY> aLineTgPoint, anArcTgPoint;
 897     // The possible centers are ranged by their positions.
 898     // If the point is not satisfy one of criteria, the weight is decreased with penalty.
 899     int aBestWeight = 0;
 900     std::list< std::shared_ptr<GeomAPI_XY> >::iterator anIt = aSuspectCenters.begin();
 901     for (; anIt != aSuspectCenters.end(); anIt++) {
 902       int aWeight = 2;
 903       aDot = aDirT->xy()->dot(aStart[aLineInd]->decreased(*anIt));
 904       aLineTgPoint = (*anIt)->added(aDirT->xy()->multiplied(aDot));
 905       // Check the point is placed on the correct arc (penalty if false)
 906       if (aCenter[1-aLineInd]->distance(*anIt) * innerArc > anArcRadius * innerArc)
 907         aWeight -= 1;
 908       std::shared_ptr<GeomAPI_Dir2d> aCurDir = std::shared_ptr<GeomAPI_Dir2d>(
 909           new GeomAPI_Dir2d((*anIt)->decreased(aCenter[1-aLineInd])));
 910       double aCurAngle = aCurDir->angle(aStartArcDir);
 911       if (anArcAngle < 0.0) aCurAngle *= -1.0;
 912       if (aCurAngle < 0.0 || aCurAngle > fabs(anArcAngle))
 913         continue;
 914       if (aWeight > aBestWeight)
 915         aBestWeight = aWeight;
 916       else if (aWeight < aBestWeight ||
 917                aStart[aLineInd]->distance(*anIt) >
 918                aStart[aLineInd]->distance(theCenter)) // <-- take closer point
 919         continue;
 920       // the center is found, stop searching
 921       theCenter = *anIt;
 922       anArcTgPoint = aCenter[1-aLineInd]->added(aCurDir->xy()->multiplied(anArcRadius));
 923       if (theFeatureA->getKind() == SketchPlugin_Line::ID()) {
 924         theTangentA = aLineTgPoint;
 925         theTangentB = anArcTgPoint;
 926       } else {
 927         theTangentA = anArcTgPoint;
 928         theTangentB = aLineTgPoint;
 929       }
 930       //return;
 931     }
 932   } else if (theFeatureA->getKind() == SketchPlugin_Arc::ID() &&
 933       theFeatureB->getKind() == SketchPlugin_Arc::ID()) {
 934     double anArcRadius[aNbFeatures];
 935     double anArcAngle[aNbFeatures];
 936     std::shared_ptr<GeomAPI_Dir2d> aStartArcDir[aNbFeatures];
 937     for (int i = 0; i < aNbFeatures; i++) {
 938       anArcRadius[i] = aStart[i]->distance(aCenter[i]);
 939       aStartArcDir[i] = std::shared_ptr<GeomAPI_Dir2d>(
 940           new GeomAPI_Dir2d(aStart[i]->decreased(aCenter[i])));
 941       std::shared_ptr<GeomAPI_Dir2d> aEndArcDir = std::shared_ptr<GeomAPI_Dir2d>(
 942           new GeomAPI_Dir2d(aEnd[i]->decreased(aCenter[i])));
 943       anArcAngle[i] = aEndArcDir->angle(aStartArcDir[i]);
 944     }
 945
 946     // get and filter possible centers
 947     std::list< std::shared_ptr<GeomAPI_XY> > aSuspectCenters;
 948     possibleFilletCenterArcArc(aCenter[0], anArcRadius[0], aCenter[1], anArcRadius[1], theRadius, aSuspectCenters);
 949     double aDot = 0.0;
 950     std::shared_ptr<GeomAPI_XY> aLineTgPoint, anArcTgPoint;
 951     std::list< std::shared_ptr<GeomAPI_XY> >::iterator anIt = aSuspectCenters.begin();
 952     for (; anIt != aSuspectCenters.end(); anIt++) {
 953       std::shared_ptr<GeomAPI_Dir2d> aCurDir = std::shared_ptr<GeomAPI_Dir2d>(
 954           new GeomAPI_Dir2d((*anIt)->decreased(aCenter[0])));
 955       double aCurAngle = aCurDir->angle(aStartArcDir[0]);
 956       if (anArcAngle[0] < 0.0) aCurAngle *= -1.0;
 957       if (aCurAngle < 0.0 || aCurAngle > fabs(anArcAngle[0]))
 958         continue; // incorrect position
 959       theTangentA = aCenter[0]->added(aCurDir->xy()->multiplied(anArcRadius[0]));
 960
 961       aCurDir = std::shared_ptr<GeomAPI_Dir2d>(new GeomAPI_Dir2d((*anIt)->decreased(aCenter[1])));
 962       aCurAngle = aCurDir->angle(aStartArcDir[1]);
 963       if (anArcAngle[1] < 0.0) aCurAngle *= -1.0;
 964       if (aCurAngle < 0.0 || aCurAngle > fabs(anArcAngle[1]))
 965         continue; // incorrect position
 966       theTangentB = aCenter[1]->added(aCurDir->xy()->multiplied(anArcRadius[1]));
 967
 968       // the center is found, stop searching
 969       theCenter = *anIt;
 970       return;
 971     }
 972   }
 973 }
 974
 975 void getPointOnEdge(const FeaturePtr theFeature,
 976                     const std::shared_ptr<GeomAPI_Pnt2d> theFilletPoint,
 977                     std::shared_ptr<GeomAPI_Pnt2d>& thePoint) {
 978   if(theFeature->getKind() == SketchPlugin_Line::ID()) {
 979     std::shared_ptr<GeomAPI_Pnt2d> aPntStart = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
 980       theFeature->attribute(SketchPlugin_Line::START_ID()))->pnt();
 981     std::shared_ptr<GeomAPI_Pnt2d> aPntEnd = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
 982       theFeature->attribute(SketchPlugin_Line::END_ID()))->pnt();
 983     if(aPntStart->distance(theFilletPoint) > 1.e-7) {
 984       aPntStart = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
 985         theFeature->attribute(SketchPlugin_Line::END_ID()))->pnt();
 986       aPntEnd = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
 987         theFeature->attribute(SketchPlugin_Line::START_ID()))->pnt();
 988     }
 989     thePoint.reset( new GeomAPI_Pnt2d(aPntStart->xy()->added( aPntEnd->xy()->decreased( aPntStart->xy() )->multiplied(1.0 / 3.0) ) ) );
 990   } else {
 991     std::shared_ptr<GeomAPI_Pnt2d> aPntTemp;
 992     std::shared_ptr<GeomAPI_Pnt2d> aPntStart = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
 993       theFeature->attribute(SketchPlugin_Arc::START_ID()))->pnt();
 994     std::shared_ptr<GeomAPI_Pnt2d> aPntEnd = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
 995       theFeature->attribute(SketchPlugin_Arc::END_ID()))->pnt();
 996     if(theFeature->attribute(SketchPlugin_Arc::INVERSED_ID())) {
 997       aPntTemp = aPntStart;
 998       aPntStart = aPntEnd;
 999       aPntEnd = aPntTemp;
1000     }
1001     std::shared_ptr<GeomAPI_Pnt2d> aCenterPnt = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
1002       theFeature->attribute(SketchPlugin_Arc::CENTER_ID()))->pnt();
1003     std::shared_ptr<GeomAPI_Circ2d> aCirc(new GeomAPI_Circ2d(aCenterPnt, aPntStart));
1004     double aStartParameter(0), anEndParameter(0);
1005     aCirc->parameter(aPntStart, paramTolerance, aStartParameter);
1006     aCirc->parameter(aPntEnd, paramTolerance, anEndParameter);
1007     if(aPntStart->distance(theFilletPoint) > tolerance) {
1008       double aTmpParameter = aStartParameter;
1009       aStartParameter = anEndParameter;
1010       anEndParameter = aTmpParameter;
1011     }
1012     double aPntParameter = aStartParameter + (anEndParameter - aStartParameter) / 3.0;
1013     aCirc->D0(aPntParameter, thePoint);
1014   }
1015 }
1016
1017 double getProjectionDistance(const FeaturePtr theFeature,
1018                              const std::shared_ptr<GeomAPI_Pnt2d> thePoint)
1019 {
1020   std::shared_ptr<GeomAPI_Pnt2d> aProjectPnt;
1021   if(theFeature->getKind() == SketchPlugin_Line::ID()) {
1022     std::shared_ptr<GeomAPI_Pnt2d> aPntStart = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
1023       theFeature->attribute(SketchPlugin_Line::START_ID()))->pnt();
1024     std::shared_ptr<GeomAPI_Pnt2d> aPntEnd = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
1025       theFeature->attribute(SketchPlugin_Line::END_ID()))->pnt();
1026     std::shared_ptr<GeomAPI_Lin2d> aLin(new GeomAPI_Lin2d(aPntStart, aPntEnd));
1027     aProjectPnt = aLin->project(thePoint);
1028   } else {
1029     std::shared_ptr<GeomAPI_Pnt2d> aPntStart = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
1030       theFeature->attribute(SketchPlugin_Arc::START_ID()))->pnt();
1031     std::shared_ptr<GeomAPI_Pnt2d> aPntEnd = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
1032       theFeature->attribute(SketchPlugin_Arc::END_ID()))->pnt();
1033     std::shared_ptr<GeomAPI_Pnt2d> aCenterPnt = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
1034       theFeature->attribute(SketchPlugin_Arc::CENTER_ID()))->pnt();
1035     std::shared_ptr<GeomAPI_Circ2d> aCirc(new GeomAPI_Circ2d(aCenterPnt, aPntStart));
1036     aProjectPnt = aCirc->project(thePoint);
1037   }
1038   if(aProjectPnt.get()) {
1039     return aProjectPnt->distance(thePoint);
1040   }
1041   return -1;
1042 }
1043
1044 std::set<FeaturePtr> getCoincides(const FeaturePtr& theConstraintCoincidence)
1045 {
1046   std::set<FeaturePtr> aCoincides;
1047
1048   std::shared_ptr<GeomAPI_Pnt2d> aFilletPnt = SketchPlugin_Tools::getCoincidencePoint(theConstraintCoincidence);
1049
1050   SketchPlugin_Tools::findCoincidences(theConstraintCoincidence,
1051                                        SketchPlugin_ConstraintCoincidence::ENTITY_A(),
1052                                        aCoincides);
1053   SketchPlugin_Tools::findCoincidences(theConstraintCoincidence,
1054                                        SketchPlugin_ConstraintCoincidence::ENTITY_B(),
1055                                        aCoincides);
1056
1057   // Remove points from set of coincides.
1058   std::set<FeaturePtr> aNewSetOfCoincides;
1059   for(std::set<FeaturePtr>::iterator anIt = aCoincides.begin(); anIt != aCoincides.end(); ++anIt) {
1060     if((*anIt)->getKind() == SketchPlugin_Line::ID()) {
1061       aNewSetOfCoincides.insert(*anIt);
1062     } else if((*anIt)->getKind() == SketchPlugin_Arc::ID()) {
1063       AttributePtr anAttrCenter = (*anIt)->attribute(SketchPlugin_Arc::CENTER_ID());
1064       std::shared_ptr<GeomDataAPI_Point2D> aPointCenter2D =
1065         std::dynamic_pointer_cast<GeomDataAPI_Point2D>(anAttrCenter);
1066       if(aPointCenter2D.get() && aFilletPnt->isEqual(aPointCenter2D->pnt())) {
1067         continue;
1068       }
1069       aNewSetOfCoincides.insert(*anIt);
1070     }
1071   }
1072   aCoincides = aNewSetOfCoincides;
1073
1074   // If we still have more than two coincides remove auxilary entities from set of coincides.
1075   if(aCoincides.size() > 2) {
1076     aNewSetOfCoincides.clear();
1077     for(std::set<FeaturePtr>::iterator anIt = aCoincides.begin(); anIt != aCoincides.end(); ++anIt) {
1078       if(!(*anIt)->boolean(SketchPlugin_SketchEntity::AUXILIARY_ID())->value()) {
1079         aNewSetOfCoincides.insert(*anIt);
1080       }
1081     }
1082     aCoincides = aNewSetOfCoincides;
1083   }
1084
1085   return aCoincides;
1086 }
1087 */