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(theEntity1->subEntities().front(),
 235           theEntity2->subEntities().front(), theMirrorLine);
 236
 237     // Workaround to avoid problems in SolveSpace.
 238     // The symmetry of two arcs will be done using symmetry of three points on these arcs:
 239     // start point, end point, and any other point on the arc
 240     std::list<EntityWrapperPtr> aBaseArcPoints(++anIt1, theEntity1->subEntities().end());
 241     std::list<EntityWrapperPtr> aMirrorArcPoints(++anIt2, theEntity2->subEntities().end());
 242     // indices of points of arc, center corresponds center, first point corresponds last point
 243     aMirrorArcPoints.reverse();
 244
 245     anIt1 = aBaseArcPoints.begin();
 246     anIt2 = aMirrorArcPoints.begin();
 247     for (; anIt1 != aBaseArcPoints.end(); ++anIt1, ++anIt2) {
 248       aMrrList = createMirror(theConstraint, theGroupID, theSketchID, *anIt1, *anIt2, theMirrorLine);
 249       aResult.insert(aResult.end(), aMrrList.begin(), aMrrList.end());
 250     }
 251     // Restore event sending
 252     aMirrArc->data()->blockSendAttributeUpdated(false);
 253   }
 254   return aResult;
 255 }
 256
 257 void SolveSpaceSolver_Builder::adjustConstraint(ConstraintWrapperPtr theConstraint) const
 258 {
 259   SketchSolver_ConstraintType aType = theConstraint->type();
 260   // Update flags in constraints
 261   if (aType == CONSTRAINT_TANGENT_ARC_ARC || aType == CONSTRAINT_TANGENT_ARC_LINE)
 262     adjustTangency(theConstraint);
 263   else if (aType == CONSTRAINT_ANGLE)
 264     adjustAngle(theConstraint);
 265   else if (aType == CONSTRAINT_SYMMETRIC)
 266     adjustMirror(theConstraint);
 267   else if (aType == CONSTRAINT_MULTI_ROTATION)
 268     adjustMultiRotation(theConstraint);
 269   else if (aType == CONSTRAINT_MULTI_TRANSLATION)
 270     adjustMultiTranslation(theConstraint);
 271 }
 272
 273 EntityWrapperPtr SolveSpaceSolver_Builder::createFeature(
 274     FeaturePtr theFeature,
 275     const std::list<EntityWrapperPtr>& theAttributes,
 276     const GroupID& theGroupID,
 277     const EntityID& theSketchID) const
 278 {
 279   static EntityWrapperPtr aDummy;
 280   if (!theFeature->data()->isValid())
 281     return aDummy;
 282
 283   // Sketch
 284   CompositeFeaturePtr aSketch = std::dynamic_pointer_cast<ModelAPI_CompositeFeature>(theFeature);
 285   if (aSketch)
 286     return createSketchEntity(aSketch, theGroupID);
 287
 288   // SketchPlugin features
 289   std::shared_ptr<SketchPlugin_Feature> aFeature =
 290       std::dynamic_pointer_cast<SketchPlugin_Feature>(theFeature);
 291   if (!aFeature)
 292     return aDummy;
 293
 294   // Verify the feature by its kind
 295   const std::string& aFeatureKind = aFeature->getKind();
 296   // Line
 297   if (aFeatureKind == SketchPlugin_Line::ID())
 298     return createLine(theFeature, theAttributes, theGroupID, theSketchID);
 299   // Circle
 300   else if (aFeatureKind == SketchPlugin_Circle::ID())
 301     return createCircle(theFeature, theAttributes,theGroupID, theSketchID);
 302   // Arc
 303   else if (aFeatureKind == SketchPlugin_Arc::ID())
 304     return createArc(theFeature, theAttributes,theGroupID, theSketchID);
 305   // Point (it has low probability to be an attribute of constraint, so it is checked at the end)
 306   else if (aFeatureKind == SketchPlugin_Point::ID()) {
 307     AttributePtr aPoint = theFeature->attribute(SketchPlugin_Point::COORD_ID());
 308     if (!aPoint->isInitialized())
 309       return aDummy;
 310     EntityWrapperPtr aSub = createAttribute(aPoint, theGroupID, theSketchID);
 311     if (!aSub)
 312       return aDummy;
 313
 314     std::shared_ptr<SketchPlugin_Point> aPointFeature =
 315         std::dynamic_pointer_cast<SketchPlugin_Point>(theFeature);
 316
 317     const Slvs_Entity& aSubEnt =
 318         std::dynamic_pointer_cast<SolveSpaceSolver_EntityWrapper>(aSub)->entity();
 319     return EntityWrapperPtr(new SolveSpaceSolver_EntityWrapper(aPointFeature, aPoint, aSubEnt));
 320   }
 321
 322   // wrong entity
 323   return aDummy;
 324 }
 325
 326 EntityWrapperPtr SolveSpaceSolver_Builder::createAttribute(
 327     AttributePtr theAttribute,
 328     const GroupID& theGroupID,
 329     const EntityID& theSketchID) const
 330 {
 331   AttributePtr anAttribute = theAttribute;
 332   AttributeRefAttrPtr aRefAttr =
 333       std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(anAttribute);
 334   if (aRefAttr) {
 335     if (aRefAttr->isObject()) {
 336       // do not create features here
 337       return EntityWrapperPtr();
 338     } else
 339       anAttribute = aRefAttr->attr();
 340   }
 341
 342   std::list<ParameterWrapperPtr> aParameters;
 343   Slvs_Entity anEntity;
 344   anEntity.type = 0;
 345
 346   // Point in 3D
 347   std::shared_ptr<GeomDataAPI_Point> aPoint =
 348       std::dynamic_pointer_cast<GeomDataAPI_Point>(theAttribute);
 349   if (aPoint) {
 350     aParameters.push_back(createParameter(theGroupID, aPoint->x(), !aPoint->textX().empty()));
 351     aParameters.push_back(createParameter(theGroupID, aPoint->y(), !aPoint->textY().empty()));
 352     aParameters.push_back(createParameter(theGroupID, aPoint->z(), !aPoint->textZ().empty()));
 353     // Create entity (parameters are not filled)
 354     anEntity = Slvs_MakePoint3d(SLVS_E_UNKNOWN, (Slvs_hGroup)theGroupID,
 355         SLVS_E_UNKNOWN, SLVS_E_UNKNOWN, SLVS_E_UNKNOWN);
 356   } else {
 357     // Point in 2D
 358     std::shared_ptr<GeomDataAPI_Point2D> aPoint2D =
 359       std::dynamic_pointer_cast<GeomDataAPI_Point2D>(theAttribute);
 360     if (aPoint2D) {
 361       aParameters.push_back(createParameter(theGroupID, aPoint2D->x(), !aPoint2D->textX().empty()));
 362       aParameters.push_back(createParameter(theGroupID, aPoint2D->y(), !aPoint2D->textY().empty()));
 363       // Create entity (parameters are not filled)
 364       anEntity = Slvs_MakePoint2d(SLVS_E_UNKNOWN, (Slvs_hGroup)theGroupID,
 365           (Slvs_hEntity)theSketchID, SLVS_E_UNKNOWN, SLVS_E_UNKNOWN);
 366     } else {
 367       // Scalar value (used for the distance entities)
 368       AttributeDoublePtr aScalar =
 369           std::dynamic_pointer_cast<ModelAPI_AttributeDouble>(theAttribute);
 370       if (aScalar) {
 371         aParameters.push_back(createParameter(theGroupID, aScalar->value(), !aScalar->text().empty()));
 372         // Create entity (parameter is not filled)
 373         anEntity = Slvs_MakeDistance(SLVS_E_UNKNOWN, (Slvs_hGroup)theGroupID,
 374           (Slvs_hEntity)theSketchID, SLVS_E_UNKNOWN);
 375       }
 376     }
 377   }
 378
 379   if (anEntity.type == 0) {
 380     // unknown attribute type
 381     return EntityWrapperPtr();
 382   }
 383
 384   EntityWrapperPtr aResult(new SolveSpaceSolver_EntityWrapper(theAttribute, anEntity));
 385   aResult->setParameters(aParameters);
 386   return aResult;
 387 }
 388
 389
 390
 391 EntityWrapperPtr SolveSpaceSolver_Builder::createSketchEntity(
 392     CompositeFeaturePtr theSketch,
 393     const GroupID& theGroupID) const
 394 {
 395   DataPtr aSketchData = theSketch->data();
 396   if (!aSketchData || !aSketchData->isValid())
 397     return EntityWrapperPtr(); // the sketch is incorrect
 398
 399   // Get parameters of workplane
 400   AttributePtr aDirX    = aSketchData->attribute(SketchPlugin_Sketch::DIRX_ID());
 401   AttributePtr aNorm    = aSketchData->attribute(SketchPlugin_Sketch::NORM_ID());
 402   AttributePtr anOrigin = aSketchData->attribute(SketchPlugin_Sketch::ORIGIN_ID());
 403   if (!anOrigin->isInitialized() || !aNorm->isInitialized() || !aDirX->isInitialized())
 404     return EntityWrapperPtr();
 405
 406   EntityWrapperPtr aNewEnt;
 407   std::list<EntityWrapperPtr> aSubs;
 408
 409   // Create SolveSpace entity corresponding to the sketch origin
 410   aNewEnt = createAttribute(anOrigin, theGroupID);
 411   if (!aNewEnt)
 412     return EntityWrapperPtr();
 413   aSubs.push_back(aNewEnt);
 414
 415   // Create SolveSpace entity corresponding the the sketch normal
 416   aNewEnt = createNormal(aNorm, aDirX, theGroupID);
 417   if (!aNewEnt)
 418     return EntityWrapperPtr();
 419   aSubs.push_back(aNewEnt);
 420
 421   // Create workplane
 422   Slvs_Entity aWorkplane = Slvs_MakeWorkplane(SLVS_E_UNKNOWN, (Slvs_hGroup)theGroupID,
 423       SLVS_E_UNKNOWN, SLVS_E_UNKNOWN);
 424
 425   aNewEnt = EntityWrapperPtr(
 426       new SolveSpaceSolver_EntityWrapper(FeaturePtr(theSketch), aWorkplane));
 427   aNewEnt->setSubEntities(aSubs);
 428   return aNewEnt;
 429 }
 430
 431 EntityWrapperPtr SolveSpaceSolver_Builder::createNormal(
 432     AttributePtr theNormal,
 433     AttributePtr theDirX,
 434     const GroupID& theGroupID) const
 435 {
 436   std::shared_ptr<GeomDataAPI_Dir> aNorm = std::dynamic_pointer_cast<GeomDataAPI_Dir>(theNormal);
 437   std::shared_ptr<GeomDataAPI_Dir> aDirX = std::dynamic_pointer_cast<GeomDataAPI_Dir>(theDirX);
 438   if (!aDirX || !aNorm ||
 439       (fabs(aDirX->x()) + fabs(aDirX->y()) + fabs(aDirX->z()) < tolerance) ||
 440       !aNorm->isInitialized())
 441     return EntityWrapperPtr();
 442   // calculate Y direction
 443   std::shared_ptr<GeomAPI_Dir> aDirY(new GeomAPI_Dir(aNorm->dir()->cross(aDirX->dir())));
 444
 445   // quaternion parameters of normal vector
 446   double qw, qx, qy, qz;
 447   Slvs_MakeQuaternion(aDirX->x(), aDirX->y(), aDirX->z(), aDirY->x(), aDirY->y(), aDirY->z(), &qw,
 448                       &qx, &qy, &qz);
 449   double aNormCoord[4] = { qw, qx, qy, qz };
 450
 451   // Create parameters of the normal
 452   std::list<ParameterWrapperPtr> aParameters;
 453   for (int i = 0; i < 4; i++)
 454     aParameters.push_back(createParameter(theGroupID, aNormCoord[i]));
 455
 456   // Create a normal with empty parameters
 457   Slvs_Entity aNormalEnt = Slvs_MakeNormal3d(SLVS_E_UNKNOWN, (Slvs_hGroup)theGroupID,
 458       SLVS_E_UNKNOWN, SLVS_E_UNKNOWN, SLVS_E_UNKNOWN, SLVS_E_UNKNOWN);
 459   EntityWrapperPtr aNormal(new SolveSpaceSolver_EntityWrapper(theNormal, aNormalEnt));
 460   aNormal->setParameters(aParameters);
 461   return aNormal;
 462 }
 463
 464 ParameterWrapperPtr SolveSpaceSolver_Builder::createParameter(
 465     const GroupID& theGroup, const double theValue, const bool theExpr) const
 466 {
 467   Slvs_Param aParam = Slvs_MakeParam(SLVS_E_UNKNOWN, (Slvs_hGroup)theGroup, theValue);
 468   ParameterWrapperPtr aWrapper(new SolveSpaceSolver_ParameterWrapper(aParam));
 469   aWrapper->setIsParametric(theExpr);
 470   return aWrapper;
 471 }
 472
 473
 474
 475
 476
 477 // ================   Auxiliary functions   ==========================
 478 EntityWrapperPtr createLine(FeaturePtr theFeature,
 479                             const std::list<EntityWrapperPtr>& theAttributes,
 480                             const GroupID& theGroupID,
 481                             const EntityID& theSketchID)
 482 {
 483   EntityWrapperPtr aNewEntity;
 484   std::list<EntityWrapperPtr> aSubs;
 485
 486   AttributePtr aStart = theFeature->attribute(SketchPlugin_Line::START_ID());
 487   AttributePtr aEnd = theFeature->attribute(SketchPlugin_Line::END_ID());
 488   if (!aStart->isInitialized() || !aEnd->isInitialized())
 489     return aNewEntity;
 490
 491   EntityWrapperPtr aStartEnt, aEndEnt;
 492   std::list<EntityWrapperPtr>::const_iterator anIt = theAttributes.begin();
 493   for (; anIt != theAttributes.end(); ++anIt) {
 494     std::shared_ptr<SolveSpaceSolver_EntityWrapper> aSlvsEntity =
 495         std::dynamic_pointer_cast<SolveSpaceSolver_EntityWrapper>(*anIt);
 496     if (aSlvsEntity->isBase(aStart))
 497       aStartEnt = aSlvsEntity;
 498     else if (aSlvsEntity->isBase(aEnd))
 499       aEndEnt = aSlvsEntity;
 500   }
 501   if (!aStartEnt || !aEndEnt)
 502     return aNewEntity;
 503
 504   aSubs.push_back(aStartEnt);
 505   aSubs.push_back(aEndEnt);
 506   Slvs_Entity anEntity = Slvs_MakeLineSegment(SLVS_E_UNKNOWN, (Slvs_hGroup)theGroupID,
 507       (Slvs_hEntity)theSketchID, (Slvs_hEntity)aStartEnt->id(), (Slvs_hEntity)aEndEnt->id());
 508
 509   aNewEntity = EntityWrapperPtr(new SolveSpaceSolver_EntityWrapper(theFeature, anEntity));
 510   aNewEntity->setSubEntities(aSubs);
 511   return aNewEntity;
 512 }
 513
 514 EntityWrapperPtr createCircle(FeaturePtr theFeature,
 515                               const std::list<EntityWrapperPtr>& theAttributes,
 516                               const GroupID& theGroupID,
 517                               const EntityID& theSketchID)
 518 {
 519   EntityWrapperPtr aNewEntity;
 520   std::list<EntityWrapperPtr> aSubs;
 521
 522   AttributePtr aCenter = theFeature->attribute(SketchPlugin_Circle::CENTER_ID());
 523   AttributePtr aRadius = theFeature->attribute(SketchPlugin_Circle::RADIUS_ID());
 524   if (!aCenter->isInitialized() || !aRadius->isInitialized())
 525     return aNewEntity;
 526
 527   EntityWrapperPtr aCenterEnt, aRadiusEnt, aNormalEnt;
 528   std::list<EntityWrapperPtr>::const_iterator anIt = theAttributes.begin();
 529   for (; anIt != theAttributes.end(); ++anIt) {
 530     std::shared_ptr<SolveSpaceSolver_EntityWrapper> aSlvsEntity =
 531         std::dynamic_pointer_cast<SolveSpaceSolver_EntityWrapper>(*anIt);
 532     if (aSlvsEntity->isBase(aCenter))
 533       aCenterEnt = aSlvsEntity;
 534     else if (aSlvsEntity->isBase(aRadius))
 535       aRadiusEnt = aSlvsEntity;
 536     else if (aSlvsEntity->type() == ENTITY_NORMAL)
 537       aNormalEnt = aSlvsEntity;
 538   }
 539   if (!aCenterEnt || !aRadiusEnt || !aNormalEnt)
 540     return aNewEntity;
 541
 542   aSubs.push_back(aCenterEnt);
 543   aSubs.push_back(aRadiusEnt);
 544   Slvs_Entity anEntity = Slvs_MakeCircle(SLVS_E_UNKNOWN, (Slvs_hGroup)theGroupID,
 545       (Slvs_hEntity)theSketchID, (Slvs_hEntity)aCenterEnt->id(),
 546       (Slvs_hEntity)aNormalEnt->id(), (Slvs_hEntity)aRadiusEnt->id());
 547
 548   aNewEntity = EntityWrapperPtr(new SolveSpaceSolver_EntityWrapper(theFeature, anEntity));
 549   aNewEntity->setSubEntities(aSubs);
 550   return aNewEntity;
 551 }
 552
 553 EntityWrapperPtr createArc(FeaturePtr theFeature,
 554                            const std::list<EntityWrapperPtr>& theAttributes,
 555                            const GroupID& theGroupID,
 556                            const EntityID& theSketchID)
 557 {
 558   EntityWrapperPtr aNewEntity;
 559   std::list<EntityWrapperPtr> aSubs;
 560
 561   AttributePtr aCenter = theFeature->attribute(SketchPlugin_Arc::CENTER_ID());
 562   AttributePtr aStart = theFeature->attribute(SketchPlugin_Arc::START_ID());
 563   AttributePtr aEnd = theFeature->attribute(SketchPlugin_Arc::END_ID());
 564   if (!aCenter->isInitialized() || !aStart->isInitialized() || !aEnd->isInitialized())
 565     return aNewEntity;
 566
 567   EntityWrapperPtr aCenterEnt, aStartEnt, aEndEnt, aNormalEnt;
 568   std::list<EntityWrapperPtr>::const_iterator anIt = theAttributes.begin();
 569   for (; anIt != theAttributes.end(); ++anIt) {
 570     std::shared_ptr<SolveSpaceSolver_EntityWrapper> aSlvsEntity =
 571         std::dynamic_pointer_cast<SolveSpaceSolver_EntityWrapper>(*anIt);
 572     if (aSlvsEntity->isBase(aCenter))
 573       aCenterEnt = aSlvsEntity;
 574     else if (aSlvsEntity->isBase(aStart))
 575       aStartEnt = aSlvsEntity;
 576     else if (aSlvsEntity->isBase(aEnd))
 577       aEndEnt = aSlvsEntity;
 578     else if (aSlvsEntity->type() == ENTITY_NORMAL)
 579       aNormalEnt = aSlvsEntity;
 580   }
 581   if (!aCenterEnt || !aStartEnt || !aEndEnt || !aNormalEnt)
 582     return aNewEntity;
 583
 584   aSubs.push_back(aCenterEnt);
 585   aSubs.push_back(aStartEnt);
 586   aSubs.push_back(aEndEnt);
 587   Slvs_Entity anEntity = Slvs_MakeArcOfCircle(SLVS_E_UNKNOWN, (Slvs_hGroup)theGroupID,
 588       (Slvs_hEntity)theSketchID, (Slvs_hEntity)aNormalEnt->id(),
 589       (Slvs_hEntity)aCenterEnt->id(), (Slvs_hEntity)aStartEnt->id(), (Slvs_hEntity)aEndEnt->id());
 590
 591   aNewEntity = EntityWrapperPtr(new SolveSpaceSolver_EntityWrapper(theFeature, anEntity));
 592   aNewEntity->setSubEntities(aSubs);
 593   return aNewEntity;
 594 }
 595
 596
 597 void adjustTangency(ConstraintWrapperPtr theConstraint)
 598 {
 599   BuilderPtr aBuilder = SolveSpaceSolver_Builder::getInstance();
 600
 601   std::shared_ptr<SolveSpaceSolver_ConstraintWrapper> aConstraint =
 602     std::dynamic_pointer_cast<SolveSpaceSolver_ConstraintWrapper>(theConstraint);
 603
 604   // Collect start, end points of entities
 605   std::shared_ptr<GeomAPI_Pnt2d> aStartEntPoints[2][2];
 606   bool isCoinc[2][2] = {false};
 607   const std::list<EntityWrapperPtr>& aSubs = aConstraint->entities();
 608   std::list<EntityWrapperPtr>::const_iterator aSIt = aSubs.begin();
 609   for (int i = 0; aSIt != aSubs.end(); ++aSIt, ++i) {
 610     const std::list<EntityWrapperPtr>& aPoints = (*aSIt)->subEntities();
 611     std::list<EntityWrapperPtr>::const_iterator aPIt = aPoints.begin();
 612     if ((*aSIt)->type() == ENTITY_ARC)
 613       ++aPIt;
 614     for (int j = 0; aPIt != aPoints.end(); ++aPIt, ++j) {
 615       aStartEntPoints[i][j] = aBuilder->point(*aPIt);
 616       if (i > 0) { // check coincidence
 617         for (int k = 0; k < 2; ++k)
 618           if (aStartEntPoints[i][j]->distance(aStartEntPoints[0][k]) < tolerance)
 619             isCoinc[0][k] = isCoinc[i][j] = true;
 620       }
 621     }
 622   }
 623
 624   Slvs_Constraint& aSlvsConstraint = aConstraint->changeConstraint();
 625   if (isCoinc[0][0] == false && isCoinc[0][1] == true)
 626     aSlvsConstraint.other = 1;
 627   else aSlvsConstraint.other = 0;
 628   if (isCoinc[1][0] == false && isCoinc[1][1] == true)
 629     aSlvsConstraint.other2 = 1;
 630   else aSlvsConstraint.other2 = 0;
 631 }
 632
 633 void adjustAngle(ConstraintWrapperPtr theConstraint)
 634 {
 635   BuilderPtr aBuilder = SolveSpaceSolver_Builder::getInstance();
 636
 637   std::shared_ptr<SolveSpaceSolver_ConstraintWrapper> aConstraint =
 638     std::dynamic_pointer_cast<SolveSpaceSolver_ConstraintWrapper>(theConstraint);
 639
 640   std::shared_ptr<GeomAPI_Pnt2d> aPoints[2][2]; // start and end points of lines
 641   const std::list<EntityWrapperPtr>& aConstrLines = aConstraint->entities();
 642   std::list<EntityWrapperPtr>::const_iterator aCLIt = aConstrLines.begin();
 643   for (int i = 0; aCLIt != aConstrLines.end(); ++i, ++aCLIt) {
 644     const std::list<EntityWrapperPtr>& aLinePoints = (*aCLIt)->subEntities();
 645     std::list<EntityWrapperPtr>::const_iterator aLPIt = aLinePoints.begin();
 646     for (int j = 0; aLPIt != aLinePoints.end(); ++j, ++aLPIt)
 647       aPoints[i][j] = aBuilder->point(*aLPIt);
 648   }
 649
 650   std::shared_ptr<GeomAPI_Lin2d> aLine[2] = {
 651     std::shared_ptr<GeomAPI_Lin2d>(new GeomAPI_Lin2d(aPoints[0][0], aPoints[0][1])),
 652     std::shared_ptr<GeomAPI_Lin2d>(new GeomAPI_Lin2d(aPoints[1][0], aPoints[1][1]))
 653   };
 654   std::shared_ptr<GeomAPI_Pnt2d> anIntersection = aLine[0]->intersect(aLine[1]);
 655   if (!anIntersection)
 656     return;
 657   double aDist[2][2];
 658   for (int i = 0; i < 2; i++) {
 659     for (int j = 0; j < 2; j++) {
 660       aDist[i][j] = anIntersection->distance(aPoints[i][j]);
 661       if (fabs(aDist[i][j]) <= tolerance)
 662         aDist[i][j] = 0.0;
 663     }
 664     if (aDist[i][0] > tolerance && aDist[i][1] > tolerance &&
 665         aDist[i][0] + aDist[i][1] < aPoints[i][0]->distance(aPoints[i][1]) + 2.0 * tolerance) {
 666       // the intersection point is an inner point of the line,
 667       // we change the sign of distance till start point to calculate correct coordinates
 668       // after rotation
 669       aDist[i][0] *= -1.0;
 670     }
 671   }
 672   std::shared_ptr<GeomAPI_Dir2d> aDir[2];
 673   for (int i = 0; i < 2; i++) {
 674     if (aDist[i][1] > fabs(aDist[i][0]))
 675       aDir[i] = std::shared_ptr<GeomAPI_Dir2d>(new GeomAPI_Dir2d(
 676           aPoints[i][1]->xy()->decreased(anIntersection->xy())));
 677     else {
 678       aDir[i] = std::shared_ptr<GeomAPI_Dir2d>(new GeomAPI_Dir2d(
 679           aPoints[i][0]->xy()->decreased(anIntersection->xy())));
 680       // main direction is opposite => change signs
 681       if (aDist[i][0] < 0.0) {
 682         aDist[i][0] *= -1.0;
 683         aDist[i][1] *= -1.0;
 684       }
 685     }
 686   }
 687
 688   Slvs_Constraint& aSlvsConstraint = aConstraint->changeConstraint();
 689   aSlvsConstraint.other = false;
 690   for (int i = 0; i < 2; i++)
 691     if (aLine[i]->direction()->dot(aDir[i]) < 0.0)
 692       aSlvsConstraint.other = !aSlvsConstraint.other;
 693 }
 694
 695 void adjustMirror(ConstraintWrapperPtr theConstraint)
 696 {
 697   std::vector<EntityWrapperPtr> aPoints;
 698   EntityWrapperPtr aMirrorLine;
 699
 700   const std::list<EntityWrapperPtr>& aSubs = theConstraint->entities();
 701   std::list<EntityWrapperPtr>::const_iterator anIt = aSubs.begin();
 702   for (; anIt != aSubs.end(); ++anIt) {
 703     if ((*anIt)->type() == ENTITY_POINT)
 704       aPoints.push_back(*anIt);
 705     else if ((*anIt)->type() == ENTITY_LINE)
 706       aMirrorLine = *anIt;
 707   }
 708
 709   makeMirrorPoints(aPoints[0], aPoints[1], aMirrorLine);
 710 }
 711
 712 void makeMirrorPoints(EntityWrapperPtr theOriginal,
 713                       EntityWrapperPtr theMirrored,
 714                       EntityWrapperPtr theMirrorLine)
 715 {
 716   BuilderPtr aBuilder = SolveSpaceSolver_Builder::getInstance();
 717
 718   std::shared_ptr<GeomAPI_Lin2d> aMirrorLine = aBuilder->line(theMirrorLine);
 719   std::shared_ptr<GeomAPI_Dir2d> aMLDir = aMirrorLine->direction();
 720   // orthogonal direction
 721   aMLDir = std::shared_ptr<GeomAPI_Dir2d>(new GeomAPI_Dir2d(aMLDir->y(), -aMLDir->x()));
 722
 723   std::shared_ptr<GeomAPI_Pnt2d> aPoint = aBuilder->point(theOriginal);
 724   std::shared_ptr<GeomAPI_XY> aVec = aPoint->xy()->decreased(aMirrorLine->location()->xy());
 725   double aDist = aVec->dot(aMLDir->xy());
 726   aVec = aPoint->xy()->added(aMLDir->xy()->multiplied(-2.0 * aDist));
 727   double aCoord[2] = {aVec->x(), aVec->y()};
 728   std::list<ParameterWrapperPtr>::const_iterator aMIt = theMirrored->parameters().begin();
 729   for (int i = 0; aMIt != theMirrored->parameters().end(); ++aMIt, ++i)
 730     (*aMIt)->setValue(aCoord[i]);
 731
 732   // update corresponding attribute
 733   AttributePtr anAttr = std::dynamic_pointer_cast<SolveSpaceSolver_EntityWrapper>(theMirrored)->baseAttribute();
 734   if (anAttr) {
 735     std::shared_ptr<GeomDataAPI_Point2D> aMirroredPnt = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(anAttr);
 736     aMirroredPnt->setValue(aCoord[0], aCoord[1]);
 737   }
 738 }
 739
 740 static void rotate(EntityWrapperPtr theSource, EntityWrapperPtr theDest,
 741                    std::shared_ptr<GeomAPI_Pnt2d> theCenter,
 742                    double theSin, double theCos)
 743 {
 744   std::shared_ptr<SolveSpaceSolver_EntityWrapper> aSource =
 745       std::dynamic_pointer_cast<SolveSpaceSolver_EntityWrapper>(theSource);
 746   std::shared_ptr<SolveSpaceSolver_EntityWrapper> aDest =
 747       std::dynamic_pointer_cast<SolveSpaceSolver_EntityWrapper>(theDest);
 748
 749   if (theSource->type() == ENTITY_POINT) {
 750     // Rotate single point
 751     std::shared_ptr<GeomDataAPI_Point2D> aSrcAttr =
 752         std::dynamic_pointer_cast<GeomDataAPI_Point2D>(aSource->baseAttribute());
 753     std::shared_ptr<GeomDataAPI_Point2D> aDstAttr =
 754         std::dynamic_pointer_cast<GeomDataAPI_Point2D>(aDest->baseAttribute());
 755     if (aSrcAttr && aDstAttr) {
 756       std::shared_ptr<GeomAPI_XY> aVec = aSrcAttr->pnt()->xy()->decreased(theCenter->xy());
 757       double aNewX = aVec->x() * theCos - aVec->y() * theSin;
 758       double aNewY = aVec->x() * theSin + aVec->y() * theCos;
 759       aDstAttr->setValue(theCenter->x() + aNewX, theCenter->y() + aNewY);
 760     }
 761     return;
 762   }
 763
 764   FeaturePtr aDestFeature = aDest->baseFeature();
 765   if (aDestFeature)
 766     aDestFeature->data()->blockSendAttributeUpdated(true);
 767
 768   // Rotate points of the feature
 769   const std::list<EntityWrapperPtr>& aSrcSubs = theSource->subEntities();
 770   const std::list<EntityWrapperPtr>& aDstSubs = theDest->subEntities();
 771   std::list<EntityWrapperPtr>::const_iterator aSrcIt, aDstIt;
 772   for (aSrcIt = aSrcSubs.begin(), aDstIt = aDstSubs.begin();
 773        aSrcIt != aSrcSubs.end() && aDstIt != aDstSubs.end(); ++aSrcIt, ++aDstIt)
 774     rotate(*aSrcIt, *aDstIt, theCenter, theSin, theCos);
 775
 776   if (aDestFeature)
 777     aDestFeature->data()->blockSendAttributeUpdated(false);
 778 }
 779
 780 static void translate(EntityWrapperPtr theSource, EntityWrapperPtr theDest,
 781                       std::shared_ptr<GeomAPI_XY> theDelta)
 782 {
 783   std::shared_ptr<SolveSpaceSolver_EntityWrapper> aSource =
 784       std::dynamic_pointer_cast<SolveSpaceSolver_EntityWrapper>(theSource);
 785   std::shared_ptr<SolveSpaceSolver_EntityWrapper> aDest =
 786       std::dynamic_pointer_cast<SolveSpaceSolver_EntityWrapper>(theDest);
 787
 788   if (theSource->type() == ENTITY_POINT) {
 789     // Translate single point
 790     std::shared_ptr<GeomDataAPI_Point2D> aSrcAttr =
 791         std::dynamic_pointer_cast<GeomDataAPI_Point2D>(aSource->baseAttribute());
 792     std::shared_ptr<GeomDataAPI_Point2D> aDstAttr =
 793         std::dynamic_pointer_cast<GeomDataAPI_Point2D>(aDest->baseAttribute());
 794     if (aSrcAttr && aDstAttr)
 795       aDstAttr->setValue(aSrcAttr->x() + theDelta->x(), aSrcAttr->y() + theDelta->y());
 796     return;
 797   }
 798
 799   FeaturePtr aDestFeature = aDest->baseFeature();
 800   if (aDestFeature)
 801     aDestFeature->data()->blockSendAttributeUpdated(true);
 802
 803   // Translate points of the feature
 804   const std::list<EntityWrapperPtr>& aSrcSubs = theSource->subEntities();
 805   const std::list<EntityWrapperPtr>& aDstSubs = theDest->subEntities();
 806   std::list<EntityWrapperPtr>::const_iterator aSrcIt, aDstIt;
 807   for (aSrcIt = aSrcSubs.begin(), aDstIt = aDstSubs.begin();
 808        aSrcIt != aSrcSubs.end() && aDstIt != aDstSubs.end(); ++aSrcIt, ++aDstIt)
 809     translate(*aSrcIt, *aDstIt, theDelta);
 810
 811   if (aDestFeature)
 812     aDestFeature->data()->blockSendAttributeUpdated(false);
 813 }
 814
 815 void adjustMultiRotation(ConstraintWrapperPtr theConstraint)
 816 {
 817   BuilderPtr aBuilder = SolveSpaceSolver_Builder::getInstance();
 818
 819   double anAngleRad = theConstraint->value() * PI / 180.0;
 820   double aSin = sin(anAngleRad);
 821   double aCos = cos(anAngleRad);
 822
 823   const std::list<EntityWrapperPtr>& aSubs = theConstraint->entities();
 824   std::list<EntityWrapperPtr>::const_iterator aSIt = aSubs.begin();
 825
 826   std::shared_ptr<GeomAPI_Pnt2d> aCenter = aBuilder->point(*aSIt++);
 827   std::list<EntityWrapperPtr>::const_iterator aPrevIt = aSIt++;
 828   for (; aSIt != aSubs.end(); ++aPrevIt, ++aSIt)
 829     rotate(*aPrevIt, *aSIt, aCenter, aSin, aCos);
 830 }
 831
 832 void adjustMultiTranslation(ConstraintWrapperPtr theConstraint)
 833 {
 834   BuilderPtr aBuilder = SolveSpaceSolver_Builder::getInstance();
 835
 836   const std::list<EntityWrapperPtr>& aSubs = theConstraint->entities();
 837   std::list<EntityWrapperPtr>::const_iterator aSIt = aSubs.begin();
 838
 839   std::shared_ptr<GeomAPI_Pnt2d> aStartPnt = aBuilder->point(*aSIt++);
 840   std::shared_ptr<GeomAPI_Pnt2d> aEndPnt = aBuilder->point(*aSIt++);
 841   std::shared_ptr<GeomAPI_XY> aDelta = aEndPnt->xy()->decreased(aStartPnt->xy());
 842
 843   std::list<EntityWrapperPtr>::const_iterator aPrevIt = aSIt++;
 844   for (; aSIt != aSubs.end(); ++aPrevIt, ++aSIt)
 845     translate(*aPrevIt, *aSIt, aDelta);
 846 }