src/SketchSolver/SolveSpaceSolver/SolveSpaceSolver_Builder.cpp

   1 // Copyright (C) 2014-20xx CEA/DEN, EDF R&D
   2
   3 // File:    SolveSpaceSolver_Builder.cpp
   4 // Created: 25 Mar 2015
   5 // Author:  Artem ZHIDKOV
   6
   7 #include <SolveSpaceSolver_Builder.h>
   8 #include <SolveSpaceSolver_Solver.h>
   9 #include <SolveSpaceSolver_Storage.h>
  10 #include <SolveSpaceSolver_ParameterWrapper.h>
  11 #include <SolveSpaceSolver_EntityWrapper.h>
  12 #include <SolveSpaceSolver_ConstraintWrapper.h>
  13 #include <SolveSpaceSolver_ConstraintType.h>
  14
  15 #include <SketchSolver_Manager.h>
  16
  17 #include <GeomAPI_Dir2d.h>
  18 #include <GeomAPI_Pnt2d.h>
  19 #include <GeomAPI_XY.h>
  20 #include <GeomDataAPI_Dir.h>
  21 #include <GeomDataAPI_Point.h>
  22 #include <GeomDataAPI_Point2D.h>
  23 #include <ModelAPI_Attribute.h>
  24 #include <ModelAPI_AttributeRefAttr.h>
  25
  26 #include <SketchPlugin_Arc.h>
  27 #include <SketchPlugin_Circle.h>
  28 #include <SketchPlugin_Line.h>
  29 #include <SketchPlugin_Point.h>
  30
  31 #include <math.h>
  32
  33
  34 static EntityWrapperPtr createLine(FeaturePtr theFeature,
  35                                    const std::list<EntityWrapperPtr>& theAttributes,
  36                                    const GroupID& theGroupID,
  37                                    const EntityID& theSketchID);
  38 static EntityWrapperPtr createCircle(FeaturePtr theFeature,
  39                                      const std::list<EntityWrapperPtr>& theAttributes,
  40                                      const GroupID& theGroupID,
  41                                      const EntityID& theSketchID);
  42 static EntityWrapperPtr createArc(FeaturePtr theFeature,
  43                                   const std::list<EntityWrapperPtr>& theAttributes,
  44                                   const GroupID& theGroupID,
  45                                   const EntityID& theSketchID);
  46
  47 /// \brief Set flags of constraint to identify which points are coincident in the Tangency
  48 ///        (for more information, see SolveSpace documentation)
  49 static void adjustTangency(ConstraintWrapperPtr theConstraint);
  50 /// \brief Set flags for angle constraint
  51 static void adjustAngle(ConstraintWrapperPtr theConstraint);
  52 /// \brief Update mirror points
  53 static void adjustMirror(ConstraintWrapperPtr theConstraint);
  54 /// \brief Update positions of rotated features
  55 static void adjustMultiRotation(ConstraintWrapperPtr theConstraint);
  56 /// \brief Update positions of translated features
  57 static void adjustMultiTranslation(ConstraintWrapperPtr theConstraint);
  58
  59 /// \brief Transform points to be symmetric regarding to the mirror line
  60 static void makeMirrorPoints(EntityWrapperPtr theOriginal,
  61                              EntityWrapperPtr theMirrored,
  62                              EntityWrapperPtr theMirrorLine);
  63
  64
  65
  66 // Initialization of constraint builder self pointer
  67 BuilderPtr SolveSpaceSolver_Builder::mySelf = SolveSpaceSolver_Builder::getInstance();
  68
  69 BuilderPtr SolveSpaceSolver_Builder::getInstance()
  70 {
  71   if (!mySelf) {
  72     mySelf = BuilderPtr(new SolveSpaceSolver_Builder);
  73     SketchSolver_Manager::instance()->setBuilder(mySelf);
  74   }
  75   return mySelf;
  76 }
  77
  78 StoragePtr SolveSpaceSolver_Builder::createStorage(const GroupID& theGroup) const
  79 {
  80   return StoragePtr(new SolveSpaceSolver_Storage(theGroup));
  81 }
  82
  83 SolverPtr SolveSpaceSolver_Builder::createSolver() const
  84 {
  85   return SolverPtr(new SolveSpaceSolver_Solver);
  86 }
  87
  88
  89 std::list<ConstraintWrapperPtr> SolveSpaceSolver_Builder::createConstraint(
  90     ConstraintPtr theConstraint,
  91     const GroupID& theGroupID,
  92     const EntityID& theSketchID,
  93     const SketchSolver_ConstraintType& theType,
  94     const double& theValue,
  95     const EntityWrapperPtr& thePoint1,
  96     const EntityWrapperPtr& thePoint2,
  97     const EntityWrapperPtr& theEntity1,
  98     const EntityWrapperPtr& theEntity2) const
  99 {
 100   if (theType == CONSTRAINT_SYMMETRIC)
 101     return createMirror(theConstraint, theGroupID, theSketchID,
 102                         thePoint1, thePoint2, theEntity1);
 103
 104   int aType = ConstraintType::toSolveSpace(theType);
 105   if (aType == SLVS_C_UNKNOWN)
 106     return std::list<ConstraintWrapperPtr>();
 107
 108   Slvs_hEntity aSlvsEntities[4] = {SLVS_E_UNKNOWN, SLVS_E_UNKNOWN, SLVS_E_UNKNOWN, SLVS_E_UNKNOWN};
 109   EntityWrapperPtr anOriginal[4] = {thePoint1, thePoint2, theEntity1, theEntity2};
 110   std::list<EntityWrapperPtr> aConstrAttrList; // to be filled
 111   for (int i = 0; i < 4; ++i) {
 112     if (!anOriginal[i])
 113       continue;
 114     aSlvsEntities[i] = (Slvs_hEntity)anOriginal[i]->id();
 115     if (aSlvsEntities[i] == SLVS_E_UNKNOWN)
 116       return std::list<ConstraintWrapperPtr>(); // entity is not added into a storage, constraint can not be created
 117     aConstrAttrList.push_back(anOriginal[i]);
 118   }
 119
 120   Slvs_Constraint aConstraint = Slvs_MakeConstraint(
 121       SLVS_C_UNKNOWN, (Slvs_hGroup)theGroupID, aType, (Slvs_hEntity)theSketchID,
 122       theValue, aSlvsEntities[0], aSlvsEntities[1], aSlvsEntities[2], aSlvsEntities[3]);
 123   ConstraintWrapperPtr aResult(new SolveSpaceSolver_ConstraintWrapper(theConstraint, aConstraint));
 124   aResult->setValue(theValue);
 125   aResult->setEntities(aConstrAttrList);
 126   adjustConstraint(aResult);
 127
 128   return std::list<ConstraintWrapperPtr>(1, aResult);
 129 }
 130
 131 std::list<ConstraintWrapperPtr> SolveSpaceSolver_Builder::createConstraint(
 132     ConstraintPtr theConstraint,
 133     const GroupID& theGroupID,
 134     const EntityID& theSketchID,
 135     const SketchSolver_ConstraintType& theType,
 136     const double& theValue,
 137     const EntityWrapperPtr& thePoint1,
 138     const EntityWrapperPtr& thePoint2,
 139     const std::list<EntityWrapperPtr>& theTrsfEnt) const
 140 {
 141   if (theType != CONSTRAINT_MULTI_ROTATION && theType != CONSTRAINT_MULTI_TRANSLATION)
 142     return std::list<ConstraintWrapperPtr>();
 143
 144   int aType = ConstraintType::toSolveSpace(theType);
 145   if (aType == SLVS_C_UNKNOWN)
 146     return std::list<ConstraintWrapperPtr>();
 147
 148   Slvs_Constraint aConstraint =
 149       Slvs_MakeConstraint(SLVS_C_UNKNOWN, (Slvs_hGroup)theGroupID, aType, (Slvs_hEntity)theSketchID,
 150       theValue, SLVS_E_UNKNOWN, SLVS_E_UNKNOWN, SLVS_E_UNKNOWN, SLVS_E_UNKNOWN);
 151
 152   std::list<EntityWrapperPtr> aConstrAttrList = theTrsfEnt;
 153   if (thePoint2)
 154     aConstrAttrList.push_front(thePoint2);
 155   aConstrAttrList.push_front(thePoint1);
 156
 157   ConstraintWrapperPtr aResult(new SolveSpaceSolver_ConstraintWrapper(theConstraint, aConstraint));
 158   aResult->setValue(theValue);
 159   aResult->setEntities(aConstrAttrList);
 160   return std::list<ConstraintWrapperPtr>(1, aResult);
 161 }
 162
 163
 164 std::list<ConstraintWrapperPtr> SolveSpaceSolver_Builder::createMirror(
 165     ConstraintPtr theConstraint,
 166     const GroupID& theGroupID,
 167     const EntityID& theSketchID,
 168     const EntityWrapperPtr& theEntity1,
 169     const EntityWrapperPtr& theEntity2,
 170     const EntityWrapperPtr& theMirrorLine) const
 171 {
 172   Slvs_Constraint aConstraint;
 173   std::list<ConstraintWrapperPtr> aResult;
 174   std::list<EntityWrapperPtr> aConstrAttrList;
 175   if (theEntity1->type() == ENTITY_POINT) {
 176     if (theEntity2->group() == theGroupID) // theEntity2 is not fixed
 177       makeMirrorPoints(theEntity1, theEntity2, theMirrorLine);
 178
 179     aConstraint = Slvs_MakeConstraint(
 180         SLVS_E_UNKNOWN, (Slvs_hGroup)theGroupID, SLVS_C_SYMMETRIC_LINE, (Slvs_hEntity)theSketchID,
 181         0.0, (Slvs_hEntity)theEntity1->id(), (Slvs_hEntity)theEntity2->id(),
 182         (Slvs_hEntity)theMirrorLine->id(), SLVS_E_UNKNOWN);
 183
 184     aConstrAttrList.push_back(theEntity1);
 185     aConstrAttrList.push_back(theEntity2);
 186     aConstrAttrList.push_back(theMirrorLine);
 187
 188     ConstraintWrapperPtr aWrapper(new SolveSpaceSolver_ConstraintWrapper(
 189         theConstraint, aConstraint));
 190     aWrapper->setEntities(aConstrAttrList);
 191     aResult.push_back(aWrapper);
 192   }
 193   else if (theEntity1->type() == ENTITY_LINE) {
 194     const std::list<EntityWrapperPtr>& aPoints1 = theEntity1->subEntities();
 195     const std::list<EntityWrapperPtr>& aPoints2 = theEntity2->subEntities();
 196     std::list<EntityWrapperPtr>::const_iterator anIt1 = aPoints1.begin();
 197     std::list<EntityWrapperPtr>::const_iterator anIt2 = aPoints2.begin();
 198     for (; anIt1 != aPoints1.end() && anIt2 != aPoints2.end(); ++anIt1, ++anIt2) {
 199       std::list<ConstraintWrapperPtr> aMrrList =
 200           createMirror(theConstraint, theGroupID, theSketchID, *anIt1, *anIt2, theMirrorLine);
 201       aResult.insert(aResult.end(), aMrrList.begin(), aMrrList.end());
 202     }
 203   }
 204   else if (theEntity1->type() == ENTITY_CIRCLE) {
 205     const std::list<EntityWrapperPtr>& aPoints1 = theEntity1->subEntities();
 206     std::list<EntityWrapperPtr>::const_iterator anIt1 = aPoints1.begin();
 207     for (; anIt1 != aPoints1.end(); ++anIt1)
 208       if ((*anIt1)->type() == ENTITY_POINT)
 209         break;
 210     const std::list<EntityWrapperPtr>& aPoints2 = theEntity2->subEntities();
 211     std::list<EntityWrapperPtr>::const_iterator anIt2 = aPoints2.begin();
 212     for (; anIt2 != aPoints2.end(); ++anIt2)
 213       if ((*anIt2)->type() == ENTITY_POINT)
 214         break;
 215
 216     std::list<ConstraintWrapperPtr> aMrrList =
 217         createMirror(theConstraint, theGroupID, theSketchID, *anIt1, *anIt2, theMirrorLine);
 218     aResult.insert(aResult.end(), aMrrList.begin(), aMrrList.end());
 219
 220     // Additional constraint for equal radii
 221     aMrrList = createConstraint(theConstraint, theGroupID, theSketchID, CONSTRAINT_EQUAL_RADIUS,
 222         0.0, EntityWrapperPtr(), EntityWrapperPtr(), theEntity1, theEntity2);
 223     aResult.insert(aResult.end(), aMrrList.begin(), aMrrList.end());
 224   }
 225   else if (theEntity1->type() == ENTITY_ARC) {
 226     // Do not allow mirrored arc recalculate its position until coordinated of all points recalculated
 227     FeaturePtr aMirrArc = theEntity2->baseFeature();
 228     aMirrArc->data()->blockSendAttributeUpdated(true);
 229
 230     std::list<ConstraintWrapperPtr> aMrrList;
 231     std::list<EntityWrapperPtr>::const_iterator anIt1 = theEntity1->subEntities().begin();
 232     std::list<EntityWrapperPtr>::const_iterator anIt2 = theEntity2->subEntities().begin();
 233     if ((*anIt2)->group() == theGroupID) // mirrored point is not fixed
 234       makeMirrorPoints(*anIt1, *anIt2, theMirrorLine);
 235
 236     // Workaround to avoid problems in SolveSpace.
 237     // The symmetry of two arcs will be done using symmetry of three points on these arcs:
 238     // start point, end point, and any other point on the arc
 239     std::list<EntityWrapperPtr> aBaseArcPoints(++anIt1, theEntity1->subEntities().end());
 240     std::list<EntityWrapperPtr> aMirrorArcPoints(++anIt2, theEntity2->subEntities().end());
 241     // indices of points of arc, center corresponds center, first point corresponds last point
 242     aMirrorArcPoints.reverse();
 243
 244     anIt1 = aBaseArcPoints.begin();
 245     anIt2 = aMirrorArcPoints.begin();
 246     for (; anIt1 != aBaseArcPoints.end(); ++anIt1, ++anIt2) {
 247       aMrrList = createMirror(theConstraint, theGroupID, theSketchID, *anIt1, *anIt2, theMirrorLine);
 248       aResult.insert(aResult.end(), aMrrList.begin(), aMrrList.end());
 249     }
 250     // Restore event sending
 251     aMirrArc->data()->blockSendAttributeUpdated(false);
 252   }
 253   return aResult;
 254 }
 255
 256 void SolveSpaceSolver_Builder::adjustConstraint(ConstraintWrapperPtr theConstraint) const
 257 {
 258   SketchSolver_ConstraintType aType = theConstraint->type();
 259   // Update flags in constraints
 260   if (aType == CONSTRAINT_TANGENT_ARC_ARC || aType == CONSTRAINT_TANGENT_ARC_LINE)
 261     adjustTangency(theConstraint);
 262   else if (aType == CONSTRAINT_ANGLE)
 263     adjustAngle(theConstraint);
 264   else if (aType == CONSTRAINT_SYMMETRIC)
 265     adjustMirror(theConstraint);
 266   else if (aType == CONSTRAINT_MULTI_ROTATION)
 267     adjustMultiRotation(theConstraint);
 268   else if (aType == CONSTRAINT_MULTI_TRANSLATION)
 269     adjustMultiTranslation(theConstraint);
 270 }
 271
 272 EntityWrapperPtr SolveSpaceSolver_Builder::createFeature(
 273     FeaturePtr theFeature,
 274     const std::list<EntityWrapperPtr>& theAttributes,
 275     const GroupID& theGroupID,
 276     const EntityID& theSketchID) const
 277 {
 278   static EntityWrapperPtr aDummy;
 279   if (!theFeature->data()->isValid())
 280     return aDummy;
 281
 282   // Sketch
 283   CompositeFeaturePtr aSketch = std::dynamic_pointer_cast<ModelAPI_CompositeFeature>(theFeature);
 284   if (aSketch)
 285     return createSketchEntity(aSketch, theGroupID);
 286
 287   // SketchPlugin features
 288   std::shared_ptr<SketchPlugin_Feature> aFeature =
 289       std::dynamic_pointer_cast<SketchPlugin_Feature>(theFeature);
 290   if (!aFeature)
 291     return aDummy;
 292
 293   // Verify the feature by its kind
 294   const std::string& aFeatureKind = aFeature->getKind();
 295   // Line
 296   if (aFeatureKind == SketchPlugin_Line::ID())
 297     return createLine(theFeature, theAttributes, theGroupID, theSketchID);
 298   // Circle
 299   else if (aFeatureKind == SketchPlugin_Circle::ID())
 300     return createCircle(theFeature, theAttributes,theGroupID, theSketchID);
 301   // Arc
 302   else if (aFeatureKind == SketchPlugin_Arc::ID())
 303     return createArc(theFeature, theAttributes,theGroupID, theSketchID);
 304   // Point (it has low probability to be an attribute of constraint, so it is checked at the end)
 305   else if (aFeatureKind == SketchPlugin_Point::ID()) {
 306     AttributePtr aPoint = theFeature->attribute(SketchPlugin_Point::COORD_ID());
 307     if (!aPoint->isInitialized())
 308       return aDummy;
 309     EntityWrapperPtr aSub = createAttribute(aPoint, theGroupID, theSketchID);
 310     if (!aSub)
 311       return aDummy;
 312
 313     const Slvs_Entity& aSubEnt =
 314         std::dynamic_pointer_cast<SolveSpaceSolver_EntityWrapper>(aSub)->entity();
 315     return EntityWrapperPtr(new SolveSpaceSolver_EntityWrapper(theFeature, aPoint, aSubEnt));
 316   }
 317
 318   // wrong entity
 319   return aDummy;
 320 }
 321
 322 EntityWrapperPtr SolveSpaceSolver_Builder::createAttribute(
 323     AttributePtr theAttribute,
 324     const GroupID& theGroupID,
 325     const EntityID& theSketchID) const
 326 {
 327   AttributePtr anAttribute = theAttribute;
 328   AttributeRefAttrPtr aRefAttr =
 329       std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(anAttribute);
 330   if (aRefAttr) {
 331     if (aRefAttr->isObject()) {
 332       // do not create features here
 333       return EntityWrapperPtr();
 334     } else
 335       anAttribute = aRefAttr->attr();
 336   }
 337
 338   std::list<ParameterWrapperPtr> aParameters;
 339   Slvs_Entity anEntity;
 340   anEntity.type = 0;
 341
 342   // Point in 3D
 343   std::shared_ptr<GeomDataAPI_Point> aPoint =
 344       std::dynamic_pointer_cast<GeomDataAPI_Point>(theAttribute);
 345   if (aPoint) {
 346     aParameters.push_back(createParameter(theGroupID, aPoint->x(), !aPoint->textX().empty()));
 347     aParameters.push_back(createParameter(theGroupID, aPoint->y(), !aPoint->textY().empty()));
 348     aParameters.push_back(createParameter(theGroupID, aPoint->z(), !aPoint->textZ().empty()));
 349     // Create entity (parameters are not filled)
 350     anEntity = Slvs_MakePoint3d(SLVS_E_UNKNOWN, (Slvs_hGroup)theGroupID,
 351         SLVS_E_UNKNOWN, SLVS_E_UNKNOWN, SLVS_E_UNKNOWN);
 352   } else {
 353     // Point in 2D
 354     std::shared_ptr<GeomDataAPI_Point2D> aPoint2D =
 355       std::dynamic_pointer_cast<GeomDataAPI_Point2D>(theAttribute);
 356     if (aPoint2D) {
 357       aParameters.push_back(createParameter(theGroupID, aPoint2D->x(), !aPoint2D->textX().empty()));
 358       aParameters.push_back(createParameter(theGroupID, aPoint2D->y(), !aPoint2D->textY().empty()));
 359       // Create entity (parameters are not filled)
 360       anEntity = Slvs_MakePoint2d(SLVS_E_UNKNOWN, (Slvs_hGroup)theGroupID,
 361           (Slvs_hEntity)theSketchID, SLVS_E_UNKNOWN, SLVS_E_UNKNOWN);
 362     } else {
 363       // Scalar value (used for the distance entities)
 364       AttributeDoublePtr aScalar =
 365           std::dynamic_pointer_cast<ModelAPI_AttributeDouble>(theAttribute);
 366       if (aScalar) {
 367         aParameters.push_back(createParameter(theGroupID, aScalar->value(), !aScalar->text().empty()));
 368         // Create entity (parameter is not filled)
 369         anEntity = Slvs_MakeDistance(SLVS_E_UNKNOWN, (Slvs_hGroup)theGroupID,
 370           (Slvs_hEntity)theSketchID, SLVS_E_UNKNOWN);
 371       }
 372     }
 373   }
 374
 375   if (anEntity.type == 0) {
 376     // unknown attribute type
 377     return EntityWrapperPtr();
 378   }
 379
 380   EntityWrapperPtr aResult(new SolveSpaceSolver_EntityWrapper(theAttribute, anEntity));
 381   aResult->setParameters(aParameters);
 382   return aResult;
 383 }
 384
 385
 386
 387 EntityWrapperPtr SolveSpaceSolver_Builder::createSketchEntity(
 388     CompositeFeaturePtr theSketch,
 389     const GroupID& theGroupID) const
 390 {
 391   DataPtr aSketchData = theSketch->data();
 392   if (!aSketchData || !aSketchData->isValid())
 393     return EntityWrapperPtr(); // the sketch is incorrect
 394
 395   // Get parameters of workplane
 396   AttributePtr aDirX    = aSketchData->attribute(SketchPlugin_Sketch::DIRX_ID());
 397   AttributePtr aNorm    = aSketchData->attribute(SketchPlugin_Sketch::NORM_ID());
 398   AttributePtr anOrigin = aSketchData->attribute(SketchPlugin_Sketch::ORIGIN_ID());
 399   if (!anOrigin->isInitialized() || !aNorm->isInitialized() || !aDirX->isInitialized())
 400     return EntityWrapperPtr();
 401
 402   EntityWrapperPtr aNewEnt;
 403   std::list<EntityWrapperPtr> aSubs;
 404
 405   // Create SolveSpace entity corresponding to the sketch origin
 406   aNewEnt = createAttribute(anOrigin, theGroupID);
 407   if (!aNewEnt)
 408     return EntityWrapperPtr();
 409   aSubs.push_back(aNewEnt);
 410
 411   // Create SolveSpace entity corresponding the the sketch normal
 412   aNewEnt = createNormal(aNorm, aDirX, theGroupID);
 413   if (!aNewEnt)
 414     return EntityWrapperPtr();
 415   aSubs.push_back(aNewEnt);
 416
 417   // Create workplane
 418   Slvs_Entity aWorkplane = Slvs_MakeWorkplane(SLVS_E_UNKNOWN, (Slvs_hGroup)theGroupID,
 419       SLVS_E_UNKNOWN, SLVS_E_UNKNOWN);
 420
 421   aNewEnt = EntityWrapperPtr(
 422       new SolveSpaceSolver_EntityWrapper(FeaturePtr(theSketch), aWorkplane));
 423   aNewEnt->setSubEntities(aSubs);
 424   return aNewEnt;
 425 }
 426
 427 EntityWrapperPtr SolveSpaceSolver_Builder::createNormal(
 428     AttributePtr theNormal,
 429     AttributePtr theDirX,
 430     const GroupID& theGroupID) const
 431 {
 432   std::shared_ptr<GeomDataAPI_Dir> aNorm = std::dynamic_pointer_cast<GeomDataAPI_Dir>(theNormal);
 433   std::shared_ptr<GeomDataAPI_Dir> aDirX = std::dynamic_pointer_cast<GeomDataAPI_Dir>(theDirX);
 434   if (!aDirX || !aNorm ||
 435       (fabs(aDirX->x()) + fabs(aDirX->y()) + fabs(aDirX->z()) < tolerance) ||
 436       !aNorm->isInitialized())
 437     return EntityWrapperPtr();
 438   // calculate Y direction
 439   std::shared_ptr<GeomAPI_Dir> aDirY(new GeomAPI_Dir(aNorm->dir()->cross(aDirX->dir())));
 440
 441   // quaternion parameters of normal vector
 442   double qw, qx, qy, qz;
 443   Slvs_MakeQuaternion(aDirX->x(), aDirX->y(), aDirX->z(), aDirY->x(), aDirY->y(), aDirY->z(), &qw,
 444                       &qx, &qy, &qz);
 445   double aNormCoord[4] = { qw, qx, qy, qz };
 446
 447   // Create parameters of the normal
 448   std::list<ParameterWrapperPtr> aParameters;
 449   for (int i = 0; i < 4; i++)
 450     aParameters.push_back(createParameter(theGroupID, aNormCoord[i]));
 451
 452   // Create a normal with empty parameters
 453   Slvs_Entity aNormalEnt = Slvs_MakeNormal3d(SLVS_E_UNKNOWN, (Slvs_hGroup)theGroupID,
 454       SLVS_E_UNKNOWN, SLVS_E_UNKNOWN, SLVS_E_UNKNOWN, SLVS_E_UNKNOWN);
 455   EntityWrapperPtr aNormal(new SolveSpaceSolver_EntityWrapper(theNormal, aNormalEnt));
 456   aNormal->setParameters(aParameters);
 457   return aNormal;
 458 }
 459
 460 ParameterWrapperPtr SolveSpaceSolver_Builder::createParameter(
 461     const GroupID& theGroup, const double theValue, const bool theExpr) const
 462 {
 463   Slvs_Param aParam = Slvs_MakeParam(SLVS_E_UNKNOWN, (Slvs_hGroup)theGroup, theValue);
 464   ParameterWrapperPtr aWrapper(new SolveSpaceSolver_ParameterWrapper(aParam));
 465   aWrapper->setIsParametric(theExpr);
 466   return aWrapper;
 467 }
 468
 469
 470
 471
 472
 473 // ================   Auxiliary functions   ==========================
 474 EntityWrapperPtr createLine(FeaturePtr theFeature,
 475                             const std::list<EntityWrapperPtr>& theAttributes,
 476                             const GroupID& theGroupID,
 477                             const EntityID& theSketchID)
 478 {
 479   EntityWrapperPtr aNewEntity;
 480   std::list<EntityWrapperPtr> aSubs;
 481
 482   AttributePtr aStart = theFeature->attribute(SketchPlugin_Line::START_ID());
 483   AttributePtr aEnd = theFeature->attribute(SketchPlugin_Line::END_ID());
 484   if (!aStart->isInitialized() || !aEnd->isInitialized())
 485     return aNewEntity;
 486
 487   EntityWrapperPtr aStartEnt, aEndEnt;
 488   std::list<EntityWrapperPtr>::const_iterator anIt = theAttributes.begin();
 489   for (; anIt != theAttributes.end(); ++anIt) {
 490     std::shared_ptr<SolveSpaceSolver_EntityWrapper> aSlvsEntity =
 491         std::dynamic_pointer_cast<SolveSpaceSolver_EntityWrapper>(*anIt);
 492     if (aSlvsEntity->isBase(aStart))
 493       aStartEnt = aSlvsEntity;
 494     else if (aSlvsEntity->isBase(aEnd))
 495       aEndEnt = aSlvsEntity;
 496   }
 497   if (!aStartEnt || !aEndEnt)
 498     return aNewEntity;
 499
 500   aSubs.push_back(aStartEnt);
 501   aSubs.push_back(aEndEnt);
 502   Slvs_Entity anEntity = Slvs_MakeLineSegment(SLVS_E_UNKNOWN, (Slvs_hGroup)theGroupID,
 503       (Slvs_hEntity)theSketchID, (Slvs_hEntity)aStartEnt->id(), (Slvs_hEntity)aEndEnt->id());
 504
 505   aNewEntity = EntityWrapperPtr(new SolveSpaceSolver_EntityWrapper(theFeature, anEntity));
 506   aNewEntity->setSubEntities(aSubs);
 507   return aNewEntity;
 508 }
 509
 510 EntityWrapperPtr createCircle(FeaturePtr theFeature,
 511                               const std::list<EntityWrapperPtr>& theAttributes,
 512                               const GroupID& theGroupID,
 513                               const EntityID& theSketchID)
 514 {
 515   EntityWrapperPtr aNewEntity;
 516   std::list<EntityWrapperPtr> aSubs;
 517
 518   AttributePtr aCenter = theFeature->attribute(SketchPlugin_Circle::CENTER_ID());
 519   AttributePtr aRadius = theFeature->attribute(SketchPlugin_Circle::RADIUS_ID());
 520   if (!aCenter->isInitialized() || !aRadius->isInitialized())
 521     return aNewEntity;
 522
 523   EntityWrapperPtr aCenterEnt, aRadiusEnt, aNormalEnt;
 524   std::list<EntityWrapperPtr>::const_iterator anIt = theAttributes.begin();
 525   for (; anIt != theAttributes.end(); ++anIt) {
 526     std::shared_ptr<SolveSpaceSolver_EntityWrapper> aSlvsEntity =
 527         std::dynamic_pointer_cast<SolveSpaceSolver_EntityWrapper>(*anIt);
 528     if (aSlvsEntity->isBase(aCenter))
 529       aCenterEnt = aSlvsEntity;
 530     else if (aSlvsEntity->isBase(aRadius))
 531       aRadiusEnt = aSlvsEntity;
 532     else if (aSlvsEntity->type() == ENTITY_NORMAL)
 533       aNormalEnt = aSlvsEntity;
 534   }
 535   if (!aCenterEnt || !aRadiusEnt || !aNormalEnt)
 536     return aNewEntity;
 537
 538   aSubs.push_back(aCenterEnt);
 539   aSubs.push_back(aRadiusEnt);
 540   Slvs_Entity anEntity = Slvs_MakeCircle(SLVS_E_UNKNOWN, (Slvs_hGroup)theGroupID,
 541       (Slvs_hEntity)theSketchID, (Slvs_hEntity)aCenterEnt->id(),
 542       (Slvs_hEntity)aNormalEnt->id(), (Slvs_hEntity)aRadiusEnt->id());
 543
 544   aNewEntity = EntityWrapperPtr(new SolveSpaceSolver_EntityWrapper(theFeature, anEntity));
 545   aNewEntity->setSubEntities(aSubs);
 546   return aNewEntity;
 547 }
 548
 549 EntityWrapperPtr createArc(FeaturePtr theFeature,
 550                            const std::list<EntityWrapperPtr>& theAttributes,
 551                            const GroupID& theGroupID,
 552                            const EntityID& theSketchID)
 553 {
 554   EntityWrapperPtr aNewEntity;
 555   std::list<EntityWrapperPtr> aSubs;
 556
 557   AttributePtr aCenter = theFeature->attribute(SketchPlugin_Arc::CENTER_ID());
 558   AttributePtr aStart = theFeature->attribute(SketchPlugin_Arc::START_ID());
 559   AttributePtr aEnd = theFeature->attribute(SketchPlugin_Arc::END_ID());
 560   if (!aCenter->isInitialized() || !aStart->isInitialized() || !aEnd->isInitialized())
 561     return aNewEntity;
 562
 563   EntityWrapperPtr aCenterEnt, aStartEnt, aEndEnt, aNormalEnt;
 564   std::list<EntityWrapperPtr>::const_iterator anIt = theAttributes.begin();
 565   for (; anIt != theAttributes.end(); ++anIt) {
 566     std::shared_ptr<SolveSpaceSolver_EntityWrapper> aSlvsEntity =
 567         std::dynamic_pointer_cast<SolveSpaceSolver_EntityWrapper>(*anIt);
 568     if (aSlvsEntity->isBase(aCenter))
 569       aCenterEnt = aSlvsEntity;
 570     else if (aSlvsEntity->isBase(aStart))
 571       aStartEnt = aSlvsEntity;
 572     else if (aSlvsEntity->isBase(aEnd))
 573       aEndEnt = aSlvsEntity;
 574     else if (aSlvsEntity->type() == ENTITY_NORMAL)
 575       aNormalEnt = aSlvsEntity;
 576   }
 577   if (!aCenterEnt || !aStartEnt || !aEndEnt || !aNormalEnt)
 578     return aNewEntity;
 579
 580   aSubs.push_back(aCenterEnt);
 581   aSubs.push_back(aStartEnt);
 582   aSubs.push_back(aEndEnt);
 583   Slvs_Entity anEntity = Slvs_MakeArcOfCircle(SLVS_E_UNKNOWN, (Slvs_hGroup)theGroupID,
 584       (Slvs_hEntity)theSketchID, (Slvs_hEntity)aNormalEnt->id(),
 585       (Slvs_hEntity)aCenterEnt->id(), (Slvs_hEntity)aStartEnt->id(), (Slvs_hEntity)aEndEnt->id());
 586
 587   aNewEntity = EntityWrapperPtr(new SolveSpaceSolver_EntityWrapper(theFeature, anEntity));
 588   aNewEntity->setSubEntities(aSubs);
 589   return aNewEntity;
 590 }
 591
 592
 593 void adjustTangency(ConstraintWrapperPtr theConstraint)
 594 {
 595   BuilderPtr aBuilder = SolveSpaceSolver_Builder::getInstance();
 596
 597   std::shared_ptr<SolveSpaceSolver_ConstraintWrapper> aConstraint =
 598     std::dynamic_pointer_cast<SolveSpaceSolver_ConstraintWrapper>(theConstraint);
 599
 600   // Collect start, end points of entities
 601   std::shared_ptr<GeomAPI_Pnt2d> aStartEntPoints[2][2];
 602   bool isCoinc[2][2] = {false};
 603   const std::list<EntityWrapperPtr>& aSubs = aConstraint->entities();
 604   std::list<EntityWrapperPtr>::const_iterator aSIt = aSubs.begin();
 605   for (int i = 0; aSIt != aSubs.end(); ++aSIt, ++i) {
 606     const std::list<EntityWrapperPtr>& aPoints = (*aSIt)->subEntities();
 607     std::list<EntityWrapperPtr>::const_iterator aPIt = aPoints.begin();
 608     if ((*aSIt)->type() == ENTITY_ARC)
 609       ++aPIt;
 610     for (int j = 0; aPIt != aPoints.end(); ++aPIt, ++j) {
 611       aStartEntPoints[i][j] = aBuilder->point(*aPIt);
 612       if (i > 0) { // check coincidence
 613         for (int k = 0; k < 2; ++k)
 614           if (aStartEntPoints[i][j]->distance(aStartEntPoints[0][k]) < tolerance)
 615             isCoinc[0][k] = isCoinc[i][j] = true;
 616       }
 617     }
 618   }
 619
 620   Slvs_Constraint& aSlvsConstraint = aConstraint->changeConstraint();
 621   if (isCoinc[0][0] == false && isCoinc[0][1] == true)
 622     aSlvsConstraint.other = 1;
 623   else aSlvsConstraint.other = 0;
 624   if (isCoinc[1][0] == false && isCoinc[1][1] == true)
 625     aSlvsConstraint.other2 = 1;
 626   else aSlvsConstraint.other2 = 0;
 627 }
 628
 629 void adjustAngle(ConstraintWrapperPtr theConstraint)
 630 {
 631   BuilderPtr aBuilder = SolveSpaceSolver_Builder::getInstance();
 632
 633   std::shared_ptr<SolveSpaceSolver_ConstraintWrapper> aConstraint =
 634     std::dynamic_pointer_cast<SolveSpaceSolver_ConstraintWrapper>(theConstraint);
 635
 636   std::shared_ptr<GeomAPI_Pnt2d> aPoints[2][2]; // start and end points of lines
 637   const std::list<EntityWrapperPtr>& aConstrLines = aConstraint->entities();
 638   std::list<EntityWrapperPtr>::const_iterator aCLIt = aConstrLines.begin();
 639   for (int i = 0; aCLIt != aConstrLines.end(); ++i, ++aCLIt) {
 640     const std::list<EntityWrapperPtr>& aLinePoints = (*aCLIt)->subEntities();
 641     std::list<EntityWrapperPtr>::const_iterator aLPIt = aLinePoints.begin();
 642     for (int j = 0; aLPIt != aLinePoints.end(); ++j, ++aLPIt)
 643       aPoints[i][j] = aBuilder->point(*aLPIt);
 644   }
 645
 646   std::shared_ptr<GeomAPI_Lin2d> aLine[2] = {
 647     std::shared_ptr<GeomAPI_Lin2d>(new GeomAPI_Lin2d(aPoints[0][0], aPoints[0][1])),
 648     std::shared_ptr<GeomAPI_Lin2d>(new GeomAPI_Lin2d(aPoints[1][0], aPoints[1][1]))
 649   };
 650   std::shared_ptr<GeomAPI_Pnt2d> anIntersection = aLine[0]->intersect(aLine[1]);
 651   if (!anIntersection)
 652     return;
 653   double aDist[2][2];
 654   for (int i = 0; i < 2; i++) {
 655     for (int j = 0; j < 2; j++) {
 656       aDist[i][j] = anIntersection->distance(aPoints[i][j]);
 657       if (fabs(aDist[i][j]) <= tolerance)
 658         aDist[i][j] = 0.0;
 659     }
 660     if (aDist[i][0] > tolerance && aDist[i][1] > tolerance &&
 661         aDist[i][0] + aDist[i][1] < aPoints[i][0]->distance(aPoints[i][1]) + 2.0 * tolerance) {
 662       // the intersection point is an inner point of the line,
 663       // we change the sign of distance till start point to calculate correct coordinates
 664       // after rotation
 665       aDist[i][0] *= -1.0;
 666     }
 667   }
 668   std::shared_ptr<GeomAPI_Dir2d> aDir[2];
 669   for (int i = 0; i < 2; i++) {
 670     if (aDist[i][1] > fabs(aDist[i][0]))
 671       aDir[i] = std::shared_ptr<GeomAPI_Dir2d>(new GeomAPI_Dir2d(
 672           aPoints[i][1]->xy()->decreased(anIntersection->xy())));
 673     else {
 674       aDir[i] = std::shared_ptr<GeomAPI_Dir2d>(new GeomAPI_Dir2d(
 675           aPoints[i][0]->xy()->decreased(anIntersection->xy())));
 676       // main direction is opposite => change signs
 677       if (aDist[i][0] < 0.0) {
 678         aDist[i][0] *= -1.0;
 679         aDist[i][1] *= -1.0;
 680       }
 681     }
 682   }
 683
 684   Slvs_Constraint& aSlvsConstraint = aConstraint->changeConstraint();
 685   aSlvsConstraint.other = false;
 686   for (int i = 0; i < 2; i++)
 687     if (aLine[i]->direction()->dot(aDir[i]) < 0.0)
 688       aSlvsConstraint.other = !aSlvsConstraint.other;
 689 }
 690
 691 void adjustMirror(ConstraintWrapperPtr theConstraint)
 692 {
 693   std::vector<EntityWrapperPtr> aPoints;
 694   EntityWrapperPtr aMirrorLine;
 695
 696   const std::list<EntityWrapperPtr>& aSubs = theConstraint->entities();
 697   std::list<EntityWrapperPtr>::const_iterator anIt = aSubs.begin();
 698   for (; anIt != aSubs.end(); ++anIt) {
 699     if ((*anIt)->type() == ENTITY_POINT)
 700       aPoints.push_back(*anIt);
 701     else if ((*anIt)->type() == ENTITY_LINE)
 702       aMirrorLine = *anIt;
 703   }
 704
 705   makeMirrorPoints(aPoints[0], aPoints[1], aMirrorLine);
 706 }
 707
 708 void makeMirrorPoints(EntityWrapperPtr theOriginal,
 709                       EntityWrapperPtr theMirrored,
 710                       EntityWrapperPtr theMirrorLine)
 711 {
 712   BuilderPtr aBuilder = SolveSpaceSolver_Builder::getInstance();
 713
 714   std::shared_ptr<GeomAPI_Lin2d> aMirrorLine = aBuilder->line(theMirrorLine);
 715   std::shared_ptr<GeomAPI_Dir2d> aMLDir = aMirrorLine->direction();
 716   // orthogonal direction
 717   aMLDir = std::shared_ptr<GeomAPI_Dir2d>(new GeomAPI_Dir2d(aMLDir->y(), -aMLDir->x()));
 718
 719   std::shared_ptr<GeomAPI_Pnt2d> aPoint = aBuilder->point(theOriginal);
 720   std::shared_ptr<GeomAPI_XY> aVec = aPoint->xy()->decreased(aMirrorLine->location()->xy());
 721   double aDist = aVec->dot(aMLDir->xy());
 722   aVec = aPoint->xy()->added(aMLDir->xy()->multiplied(-2.0 * aDist));
 723   double aCoord[2] = {aVec->x(), aVec->y()};
 724   std::list<ParameterWrapperPtr>::const_iterator aMIt = theMirrored->parameters().begin();
 725   for (int i = 0; aMIt != theMirrored->parameters().end(); ++aMIt, ++i)
 726     (*aMIt)->setValue(aCoord[i]);
 727
 728   // update corresponding attribute
 729   AttributePtr anAttr = std::dynamic_pointer_cast<SolveSpaceSolver_EntityWrapper>(theMirrored)->baseAttribute();
 730   if (anAttr) {
 731     std::shared_ptr<GeomDataAPI_Point2D> aMirroredPnt = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(anAttr);
 732     aMirroredPnt->setValue(aCoord[0], aCoord[1]);
 733   }
 734 }
 735
 736 static void rotate(EntityWrapperPtr theSource, EntityWrapperPtr theDest,
 737                    std::shared_ptr<GeomAPI_Pnt2d> theCenter,
 738                    double theSin, double theCos)
 739 {
 740   std::shared_ptr<SolveSpaceSolver_EntityWrapper> aSource =
 741       std::dynamic_pointer_cast<SolveSpaceSolver_EntityWrapper>(theSource);
 742   std::shared_ptr<SolveSpaceSolver_EntityWrapper> aDest =
 743       std::dynamic_pointer_cast<SolveSpaceSolver_EntityWrapper>(theDest);
 744
 745   if (theSource->type() == ENTITY_POINT) {
 746     // Rotate single point
 747     std::shared_ptr<GeomDataAPI_Point2D> aSrcAttr =
 748         std::dynamic_pointer_cast<GeomDataAPI_Point2D>(aSource->baseAttribute());
 749     std::shared_ptr<GeomDataAPI_Point2D> aDstAttr =
 750         std::dynamic_pointer_cast<GeomDataAPI_Point2D>(aDest->baseAttribute());
 751     if (aSrcAttr && aDstAttr) {
 752       std::shared_ptr<GeomAPI_XY> aVec = aSrcAttr->pnt()->xy()->decreased(theCenter->xy());
 753       double aNewX = aVec->x() * theCos - aVec->y() * theSin;
 754       double aNewY = aVec->x() * theSin + aVec->y() * theCos;
 755       aDstAttr->setValue(theCenter->x() + aNewX, theCenter->y() + aNewY);
 756     }
 757     return;
 758   }
 759
 760   FeaturePtr aDestFeature = aDest->baseFeature();
 761   if (aDestFeature)
 762     aDestFeature->data()->blockSendAttributeUpdated(true);
 763
 764   // Rotate points of the feature
 765   const std::list<EntityWrapperPtr>& aSrcSubs = theSource->subEntities();
 766   const std::list<EntityWrapperPtr>& aDstSubs = theDest->subEntities();
 767   std::list<EntityWrapperPtr>::const_iterator aSrcIt, aDstIt;
 768   for (aSrcIt = aSrcSubs.begin(), aDstIt = aDstSubs.begin();
 769        aSrcIt != aSrcSubs.end() && aDstIt != aDstSubs.end(); ++aSrcIt, ++aDstIt)
 770     rotate(*aSrcIt, *aDstIt, theCenter, theSin, theCos);
 771
 772   if (aDestFeature)
 773     aDestFeature->data()->blockSendAttributeUpdated(false);
 774 }
 775
 776 static void translate(EntityWrapperPtr theSource, EntityWrapperPtr theDest,
 777                       std::shared_ptr<GeomAPI_XY> theDelta)
 778 {
 779   std::shared_ptr<SolveSpaceSolver_EntityWrapper> aSource =
 780       std::dynamic_pointer_cast<SolveSpaceSolver_EntityWrapper>(theSource);
 781   std::shared_ptr<SolveSpaceSolver_EntityWrapper> aDest =
 782       std::dynamic_pointer_cast<SolveSpaceSolver_EntityWrapper>(theDest);
 783
 784   if (theSource->type() == ENTITY_POINT) {
 785     // Translate single point
 786     std::shared_ptr<GeomDataAPI_Point2D> aSrcAttr =
 787         std::dynamic_pointer_cast<GeomDataAPI_Point2D>(aSource->baseAttribute());
 788     std::shared_ptr<GeomDataAPI_Point2D> aDstAttr =
 789         std::dynamic_pointer_cast<GeomDataAPI_Point2D>(aDest->baseAttribute());
 790     if (aSrcAttr && aDstAttr)
 791       aDstAttr->setValue(aSrcAttr->x() + theDelta->x(), aSrcAttr->y() + theDelta->y());
 792     return;
 793   }
 794
 795   FeaturePtr aDestFeature = aDest->baseFeature();
 796   if (aDestFeature)
 797     aDestFeature->data()->blockSendAttributeUpdated(true);
 798
 799   // Translate points of the feature
 800   const std::list<EntityWrapperPtr>& aSrcSubs = theSource->subEntities();
 801   const std::list<EntityWrapperPtr>& aDstSubs = theDest->subEntities();
 802   std::list<EntityWrapperPtr>::const_iterator aSrcIt, aDstIt;
 803   for (aSrcIt = aSrcSubs.begin(), aDstIt = aDstSubs.begin();
 804        aSrcIt != aSrcSubs.end() && aDstIt != aDstSubs.end(); ++aSrcIt, ++aDstIt)
 805     translate(*aSrcIt, *aDstIt, theDelta);
 806
 807   if (aDestFeature)
 808     aDestFeature->data()->blockSendAttributeUpdated(false);
 809 }
 810
 811 void adjustMultiRotation(ConstraintWrapperPtr theConstraint)
 812 {
 813   BuilderPtr aBuilder = SolveSpaceSolver_Builder::getInstance();
 814
 815   double anAngleRad = theConstraint->value() * PI / 180.0;
 816   double aSin = sin(anAngleRad);
 817   double aCos = cos(anAngleRad);
 818
 819   const std::list<EntityWrapperPtr>& aSubs = theConstraint->entities();
 820   std::list<EntityWrapperPtr>::const_iterator aSIt = aSubs.begin();
 821
 822   std::shared_ptr<GeomAPI_Pnt2d> aCenter = aBuilder->point(*aSIt++);
 823   std::list<EntityWrapperPtr>::const_iterator aPrevIt = aSIt++;
 824   for (; aSIt != aSubs.end(); ++aPrevIt, ++aSIt)
 825     rotate(*aPrevIt, *aSIt, aCenter, aSin, aCos);
 826 }
 827
 828 void adjustMultiTranslation(ConstraintWrapperPtr theConstraint)
 829 {
 830   BuilderPtr aBuilder = SolveSpaceSolver_Builder::getInstance();
 831
 832   const std::list<EntityWrapperPtr>& aSubs = theConstraint->entities();
 833   std::list<EntityWrapperPtr>::const_iterator aSIt = aSubs.begin();
 834
 835   std::shared_ptr<GeomAPI_Pnt2d> aStartPnt = aBuilder->point(*aSIt++);
 836   std::shared_ptr<GeomAPI_Pnt2d> aEndPnt = aBuilder->point(*aSIt++);
 837   std::shared_ptr<GeomAPI_XY> aDelta = aEndPnt->xy()->decreased(aStartPnt->xy());
 838
 839   bool isFullValue = theConstraint->isFullValue();
 840   int aNbObjects = aSubs.size()-3;
 841   if (isFullValue && aNbObjects > 0) {
 842     aDelta->setX(aDelta->x()/aNbObjects);
 843     aDelta->setY(aDelta->y()/aNbObjects);
 844   }
 845
 846   std::list<EntityWrapperPtr>::const_iterator aPrevIt = aSIt++;
 847   for (; aSIt != aSubs.end(); ++aPrevIt, ++aSIt)
 848     translate(*aPrevIt, *aSIt, aDelta);
 849 }