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_Angle2d.h>
  18 #include <GeomAPI_Dir2d.h>
  19 #include <GeomAPI_Pnt2d.h>
  20 #include <GeomAPI_XY.h>
  21 #include <GeomDataAPI_Dir.h>
  22 #include <GeomDataAPI_Point.h>
  23 #include <GeomDataAPI_Point2D.h>
  24 #include <ModelAPI_Attribute.h>
  25 #include <ModelAPI_AttributeRefAttr.h>
  26
  27 #include <SketchPlugin_Arc.h>
  28 #include <SketchPlugin_Circle.h>
  29 #include <SketchPlugin_Line.h>
  30 #include <SketchPlugin_Point.h>
  31 #include <SketchPlugin_IntersectionPoint.h>
  32 #include <SketchPlugin_ConstraintAngle.h>
  33
  34 #include <math.h>
  35
  36
  37 static EntityWrapperPtr createLine(FeaturePtr theFeature,
  38                                    const std::list<EntityWrapperPtr>& theAttributes,
  39                                    const GroupID& theGroupID,
  40                                    const EntityID& theSketchID);
  41 static EntityWrapperPtr createCircle(FeaturePtr theFeature,
  42                                      const std::list<EntityWrapperPtr>& theAttributes,
  43                                      const GroupID& theGroupID,
  44                                      const EntityID& theSketchID);
  45 static EntityWrapperPtr createArc(FeaturePtr theFeature,
  46                                   const std::list<EntityWrapperPtr>& theAttributes,
  47                                   const GroupID& theGroupID,
  48                                   const EntityID& theSketchID);
  49
  50 /// \brief Set flags of constraint to identify which points are coincident in the Tangency
  51 ///        (for more information, see SolveSpace documentation)
  52 static void adjustTangency(ConstraintWrapperPtr theConstraint);
  53 /// \brief Set flags for angle constraint
  54 static void adjustAngle(ConstraintWrapperPtr theConstraint);
  55 /// \brief Update mirror points
  56 static void adjustMirror(ConstraintWrapperPtr theConstraint);
  57 /// \brief Update a sign of the point-line distance constraint
  58 static void adjustPtLineDistance(ConstraintWrapperPtr theConstraint);
  59
  60 /// \brief Transform points to be symmetric regarding to the mirror line
  61 static void makeMirrorPoints(EntityWrapperPtr theOriginal,
  62                              EntityWrapperPtr theMirrored,
  63                              EntityWrapperPtr theMirrorLine);
  64
  65
  66
  67 // Initialization of constraint builder self pointer
  68 BuilderPtr SolveSpaceSolver_Builder::mySelf = SolveSpaceSolver_Builder::getInstance();
  69
  70 BuilderPtr SolveSpaceSolver_Builder::getInstance()
  71 {
  72   if (!mySelf) {
  73     mySelf = BuilderPtr(new SolveSpaceSolver_Builder);
  74     SketchSolver_Manager::instance()->setBuilder(mySelf);
  75   }
  76   return mySelf;
  77 }
  78
  79 StoragePtr SolveSpaceSolver_Builder::createStorage(const GroupID& theGroup) const
  80 {
  81   return StoragePtr(new SolveSpaceSolver_Storage(theGroup));
  82 }
  83
  84 SolverPtr SolveSpaceSolver_Builder::createSolver() const
  85 {
  86   return SolverPtr(new SolveSpaceSolver_Solver);
  87 }
  88
  89
  90 std::list<ConstraintWrapperPtr> SolveSpaceSolver_Builder::createConstraint(
  91     ConstraintPtr theConstraint,
  92     const GroupID& theGroupID,
  93     const EntityID& theSketchID,
  94     const SketchSolver_ConstraintType& theType,
  95     const double& theValue,
  96     const EntityWrapperPtr& thePoint1,
  97     const EntityWrapperPtr& thePoint2,
  98     const EntityWrapperPtr& theEntity1,
  99     const EntityWrapperPtr& theEntity2) const
 100 {
 101   if (theType == CONSTRAINT_SYMMETRIC)
 102     return createMirror(theConstraint, theGroupID, theSketchID,
 103                         thePoint1, thePoint2, theEntity1);
 104   else if (theType == CONSTRAINT_TANGENT_CIRCLE_LINE) {
 105     // replace by distance from center of circle to the line
 106     const std::list<EntityWrapperPtr>& aSubs = theEntity1->subEntities();
 107     EntityWrapperPtr aCenter = aSubs.front();
 108     AttributeDoublePtr aRadius = std::dynamic_pointer_cast<ModelAPI_AttributeDouble>(
 109         aSubs.back()->baseAttribute());
 110     return createConstraint(theConstraint, theGroupID, theSketchID,
 111         CONSTRAINT_PT_LINE_DISTANCE, aRadius->value(), aCenter, EntityWrapperPtr(), theEntity2);
 112   }
 113   else if (theType == CONSTRAINT_COLLINEAR) {
 114     // replace by two constraints point-on-line
 115     std::list<ConstraintWrapperPtr> aConstraints;
 116     const std::list<EntityWrapperPtr>& aSubs1 = theEntity1->subEntities();
 117     const std::list<EntityWrapperPtr>& aSubs2 = theEntity2->subEntities();
 118     std::list<EntityWrapperPtr>::const_iterator anIt1, anIt2;
 119     for (anIt2 = aSubs2.begin(); anIt2 != aSubs2.end(); ++anIt2) {
 120       for (anIt1 = aSubs1.begin(); anIt1 != aSubs1.end(); ++anIt1)
 121         if ((*anIt1)->id() == (*anIt2)->id())
 122           break;
 123       if (anIt1 != aSubs1.end())
 124         continue; // the lines have coincident point
 125
 126       std::list<ConstraintWrapperPtr> aC = createConstraint(theConstraint, theGroupID,
 127           theSketchID, CONSTRAINT_PT_ON_LINE, theValue, *anIt2, EntityWrapperPtr(), theEntity1);
 128       aConstraints.insert(aConstraints.end(), aC.begin(), aC.end());
 129     }
 130     return aConstraints;
 131   }
 132
 133   int aType = ConstraintType::toSolveSpace(theType);
 134   if (aType == SLVS_C_UNKNOWN)
 135     return std::list<ConstraintWrapperPtr>();
 136
 137   Slvs_hEntity aSlvsEntities[4] = {SLVS_E_UNKNOWN, SLVS_E_UNKNOWN, SLVS_E_UNKNOWN, SLVS_E_UNKNOWN};
 138   EntityWrapperPtr anOriginal[4] = {thePoint1, thePoint2, theEntity1, theEntity2};
 139   std::list<EntityWrapperPtr> aConstrAttrList; // to be filled
 140   for (int i = 0; i < 4; ++i) {
 141     if (!anOriginal[i])
 142       continue;
 143     aSlvsEntities[i] = (Slvs_hEntity)anOriginal[i]->id();
 144     if (aSlvsEntities[i] == SLVS_E_UNKNOWN)
 145       return std::list<ConstraintWrapperPtr>(); // entity is not added into a storage, constraint can not be created
 146     aConstrAttrList.push_back(anOriginal[i]);
 147   }
 148
 149   Slvs_Constraint aConstraint = Slvs_MakeConstraint(
 150       SLVS_C_UNKNOWN, (Slvs_hGroup)theGroupID, aType, (Slvs_hEntity)theSketchID,
 151       theValue, aSlvsEntities[0], aSlvsEntities[1], aSlvsEntities[2], aSlvsEntities[3]);
 152   ConstraintWrapperPtr aResult(new SolveSpaceSolver_ConstraintWrapper(theConstraint, aConstraint));
 153   aResult->setGroup(theGroupID);
 154   aResult->setValue(theValue);
 155   aResult->setEntities(aConstrAttrList);
 156   adjustConstraint(aResult);
 157
 158   return std::list<ConstraintWrapperPtr>(1, aResult);
 159 }
 160
 161 std::list<ConstraintWrapperPtr> SolveSpaceSolver_Builder::createConstraint(
 162     ConstraintPtr theConstraint,
 163     const GroupID& theGroupID,
 164     const EntityID& theSketchID,
 165     const SketchSolver_ConstraintType& theType,
 166     const double& theValue,
 167     const bool theFullValue,
 168     const EntityWrapperPtr& thePoint1,
 169     const EntityWrapperPtr& thePoint2,
 170     const std::list<EntityWrapperPtr>& theTrsfEnt) const
 171 {
 172   if (theType != CONSTRAINT_MULTI_ROTATION && theType != CONSTRAINT_MULTI_TRANSLATION)
 173     return std::list<ConstraintWrapperPtr>();
 174
 175   int aType = ConstraintType::toSolveSpace(theType);
 176   if (aType == SLVS_C_UNKNOWN)
 177     return std::list<ConstraintWrapperPtr>();
 178
 179   Slvs_Constraint aConstraint =
 180       Slvs_MakeConstraint(SLVS_C_UNKNOWN, (Slvs_hGroup)theGroupID, aType, (Slvs_hEntity)theSketchID,
 181       theValue, SLVS_E_UNKNOWN, SLVS_E_UNKNOWN, SLVS_E_UNKNOWN, SLVS_E_UNKNOWN);
 182
 183   std::list<EntityWrapperPtr> aConstrAttrList = theTrsfEnt;
 184   if (thePoint2)
 185     aConstrAttrList.push_front(thePoint2);
 186   aConstrAttrList.push_front(thePoint1);
 187
 188   ConstraintWrapperPtr aResult(new SolveSpaceSolver_ConstraintWrapper(theConstraint, aConstraint));
 189   aResult->setGroup(theGroupID);
 190   aResult->setValue(theValue);
 191   aResult->setIsFullValue(theFullValue);
 192   aResult->setEntities(aConstrAttrList);
 193   return std::list<ConstraintWrapperPtr>(1, aResult);
 194 }
 195
 196
 197 std::list<ConstraintWrapperPtr> SolveSpaceSolver_Builder::createMirror(
 198     ConstraintPtr theConstraint,
 199     const GroupID& theGroupID,
 200     const EntityID& theSketchID,
 201     const EntityWrapperPtr& theEntity1,
 202     const EntityWrapperPtr& theEntity2,
 203     const EntityWrapperPtr& theMirrorLine) const
 204 {
 205   Slvs_Constraint aConstraint;
 206   std::list<ConstraintWrapperPtr> aResult;
 207   std::list<EntityWrapperPtr> aConstrAttrList;
 208   if (theEntity1->type() == ENTITY_POINT) {
 209     if (theEntity2->group() == theGroupID) // theEntity2 is not fixed
 210       makeMirrorPoints(theEntity1, theEntity2, theMirrorLine);
 211
 212     aConstraint = Slvs_MakeConstraint(
 213         SLVS_E_UNKNOWN, (Slvs_hGroup)theGroupID, SLVS_C_SYMMETRIC_LINE, (Slvs_hEntity)theSketchID,
 214         0.0, (Slvs_hEntity)theEntity1->id(), (Slvs_hEntity)theEntity2->id(),
 215         (Slvs_hEntity)theMirrorLine->id(), SLVS_E_UNKNOWN);
 216
 217     aConstrAttrList.push_back(theEntity1);
 218     aConstrAttrList.push_back(theEntity2);
 219     aConstrAttrList.push_back(theMirrorLine);
 220
 221     ConstraintWrapperPtr aWrapper(new SolveSpaceSolver_ConstraintWrapper(
 222         theConstraint, aConstraint));
 223     aWrapper->setGroup(theGroupID);
 224     aWrapper->setEntities(aConstrAttrList);
 225     aResult.push_back(aWrapper);
 226   }
 227   else if (theEntity1->type() == ENTITY_LINE) {
 228     const std::list<EntityWrapperPtr>& aPoints1 = theEntity1->subEntities();
 229     const std::list<EntityWrapperPtr>& aPoints2 = theEntity2->subEntities();
 230     std::list<EntityWrapperPtr>::const_iterator anIt1 = aPoints1.begin();
 231     std::list<EntityWrapperPtr>::const_iterator anIt2 = aPoints2.begin();
 232     for (; anIt1 != aPoints1.end() && anIt2 != aPoints2.end(); ++anIt1, ++anIt2) {
 233       std::list<ConstraintWrapperPtr> aMrrList =
 234           createMirror(theConstraint, theGroupID, theSketchID, *anIt1, *anIt2, theMirrorLine);
 235       aResult.insert(aResult.end(), aMrrList.begin(), aMrrList.end());
 236     }
 237   }
 238   else if (theEntity1->type() == ENTITY_CIRCLE) {
 239     const std::list<EntityWrapperPtr>& aPoints1 = theEntity1->subEntities();
 240     std::list<EntityWrapperPtr>::const_iterator anIt1 = aPoints1.begin();
 241     for (; anIt1 != aPoints1.end(); ++anIt1)
 242       if ((*anIt1)->type() == ENTITY_POINT)
 243         break;
 244     const std::list<EntityWrapperPtr>& aPoints2 = theEntity2->subEntities();
 245     std::list<EntityWrapperPtr>::const_iterator anIt2 = aPoints2.begin();
 246     for (; anIt2 != aPoints2.end(); ++anIt2)
 247       if ((*anIt2)->type() == ENTITY_POINT)
 248         break;
 249
 250     std::list<ConstraintWrapperPtr> aMrrList =
 251         createMirror(theConstraint, theGroupID, theSketchID, *anIt1, *anIt2, theMirrorLine);
 252     aResult.insert(aResult.end(), aMrrList.begin(), aMrrList.end());
 253
 254     // Additional constraint for equal radii
 255     aMrrList = createConstraint(theConstraint, theGroupID, theSketchID, CONSTRAINT_EQUAL_RADIUS,
 256         0.0, EntityWrapperPtr(), EntityWrapperPtr(), theEntity1, theEntity2);
 257     aResult.insert(aResult.end(), aMrrList.begin(), aMrrList.end());
 258   }
 259   else if (theEntity1->type() == ENTITY_ARC) {
 260     // Do not allow mirrored arc recalculate its position until coordinated of all points recalculated
 261     FeaturePtr aMirrArc = theEntity2->baseFeature();
 262     aMirrArc->data()->blockSendAttributeUpdated(true);
 263
 264     std::list<ConstraintWrapperPtr> aMrrList;
 265     std::list<EntityWrapperPtr>::const_iterator anIt1 = theEntity1->subEntities().begin();
 266     std::list<EntityWrapperPtr>::const_iterator anIt2 = theEntity2->subEntities().begin();
 267     if ((*anIt2)->group() == theGroupID) // mirrored point is not fixed
 268       makeMirrorPoints(*anIt1, *anIt2, theMirrorLine);
 269
 270     // Workaround to avoid problems in SolveSpace.
 271     // The symmetry of two arcs will be done using symmetry of three points on these arcs:
 272     // start point, end point, and any other point on the arc
 273     std::list<EntityWrapperPtr> aBaseArcPoints(++anIt1, theEntity1->subEntities().end());
 274     std::list<EntityWrapperPtr> aMirrorArcPoints(++anIt2, theEntity2->subEntities().end());
 275     // indices of points of arc, center corresponds center, first point corresponds last point
 276     aMirrorArcPoints.reverse();
 277
 278     anIt1 = aBaseArcPoints.begin();
 279     anIt2 = aMirrorArcPoints.begin();
 280     for (; anIt1 != aBaseArcPoints.end(); ++anIt1, ++anIt2) {
 281       aMrrList = createMirror(theConstraint, theGroupID, theSketchID, *anIt1, *anIt2, theMirrorLine);
 282       aResult.insert(aResult.end(), aMrrList.begin(), aMrrList.end());
 283     }
 284     // Restore event sending
 285     aMirrArc->data()->blockSendAttributeUpdated(false);
 286   }
 287   return aResult;
 288 }
 289
 290 void SolveSpaceSolver_Builder::adjustConstraint(ConstraintWrapperPtr theConstraint) const
 291 {
 292   SketchSolver_ConstraintType aType = theConstraint->type();
 293   // Update flags in constraints
 294   if (aType == CONSTRAINT_TANGENT_ARC_ARC || aType == CONSTRAINT_TANGENT_ARC_LINE)
 295     adjustTangency(theConstraint);
 296   else if (aType == CONSTRAINT_ANGLE)
 297     adjustAngle(theConstraint);
 298   else if (aType == CONSTRAINT_SYMMETRIC)
 299     adjustMirror(theConstraint);
 300   else if (aType == CONSTRAINT_PT_LINE_DISTANCE)
 301     adjustPtLineDistance(theConstraint);
 302 }
 303
 304 EntityWrapperPtr SolveSpaceSolver_Builder::createFeature(
 305     FeaturePtr theFeature,
 306     const std::list<EntityWrapperPtr>& theAttributes,
 307     const GroupID& theGroupID,
 308     const EntityID& theSketchID) const
 309 {
 310   static EntityWrapperPtr aDummy;
 311   if (!theFeature->data()->isValid())
 312     return aDummy;
 313
 314   // Sketch
 315   CompositeFeaturePtr aSketch = std::dynamic_pointer_cast<ModelAPI_CompositeFeature>(theFeature);
 316   if (aSketch)
 317     return createSketchEntity(aSketch, theGroupID);
 318
 319   // SketchPlugin features
 320   std::shared_ptr<SketchPlugin_Feature> aFeature =
 321       std::dynamic_pointer_cast<SketchPlugin_Feature>(theFeature);
 322   if (!aFeature)
 323     return aDummy;
 324
 325   // Verify the feature by its kind
 326   const std::string& aFeatureKind = aFeature->getKind();
 327   // Line
 328   if (aFeatureKind == SketchPlugin_Line::ID())
 329     return createLine(theFeature, theAttributes, theGroupID, theSketchID);
 330   // Circle
 331   else if (aFeatureKind == SketchPlugin_Circle::ID())
 332     return createCircle(theFeature, theAttributes, theGroupID, theSketchID);
 333   // Arc
 334   else if (aFeatureKind == SketchPlugin_Arc::ID())
 335     return createArc(theFeature, theAttributes, theGroupID, theSketchID);
 336   // Point (it has low probability to be an attribute of constraint, so it is checked at the end)
 337   else if (aFeatureKind == SketchPlugin_Point::ID() ||
 338            aFeatureKind == SketchPlugin_IntersectionPoint::ID()) {
 339     AttributePtr aPoint = theFeature->attribute(SketchPlugin_Point::COORD_ID());
 340     if (!aPoint->isInitialized())
 341       return aDummy;
 342     EntityWrapperPtr aSub = theAttributes.empty() ? createAttribute(aPoint, theGroupID, theSketchID) :
 343                             theAttributes.front();
 344     if (!aSub)
 345       return aDummy;
 346
 347     const Slvs_Entity& aSubEnt =
 348         std::dynamic_pointer_cast<SolveSpaceSolver_EntityWrapper>(aSub)->entity();
 349     EntityWrapperPtr aResult(new SolveSpaceSolver_EntityWrapper(theFeature, aPoint, aSubEnt));
 350     aResult->setSubEntities(theAttributes);
 351     return aResult;
 352   }
 353
 354   // wrong entity
 355   return aDummy;
 356 }
 357
 358 EntityWrapperPtr SolveSpaceSolver_Builder::createAttribute(
 359     AttributePtr theAttribute,
 360     const GroupID& theGroupID,
 361     const EntityID& theSketchID) const
 362 {
 363   AttributePtr anAttribute = theAttribute;
 364   AttributeRefAttrPtr aRefAttr =
 365       std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(anAttribute);
 366   if (aRefAttr) {
 367     if (aRefAttr->isObject()) {
 368       // do not create features here
 369       return EntityWrapperPtr();
 370     } else
 371       anAttribute = aRefAttr->attr();
 372   }
 373
 374   std::list<ParameterWrapperPtr> aParameters;
 375   Slvs_Entity anEntity;
 376   anEntity.type = 0;
 377
 378   // Point in 3D
 379   std::shared_ptr<GeomDataAPI_Point> aPoint =
 380       std::dynamic_pointer_cast<GeomDataAPI_Point>(theAttribute);
 381   if (aPoint) {
 382     aParameters.push_back(createParameter(theGroupID, aPoint->x(), !aPoint->textX().empty()));
 383     aParameters.push_back(createParameter(theGroupID, aPoint->y(), !aPoint->textY().empty()));
 384     aParameters.push_back(createParameter(theGroupID, aPoint->z(), !aPoint->textZ().empty()));
 385     // Create entity (parameters are not filled)
 386     anEntity = Slvs_MakePoint3d(SLVS_E_UNKNOWN, (Slvs_hGroup)theGroupID,
 387         SLVS_E_UNKNOWN, SLVS_E_UNKNOWN, SLVS_E_UNKNOWN);
 388   } else {
 389     // Point in 2D
 390     std::shared_ptr<GeomDataAPI_Point2D> aPoint2D =
 391       std::dynamic_pointer_cast<GeomDataAPI_Point2D>(theAttribute);
 392     if (aPoint2D) {
 393       aParameters.push_back(createParameter(theGroupID, aPoint2D->x(), !aPoint2D->textX().empty()));
 394       aParameters.push_back(createParameter(theGroupID, aPoint2D->y(), !aPoint2D->textY().empty()));
 395       // Create entity (parameters are not filled)
 396       anEntity = Slvs_MakePoint2d(SLVS_E_UNKNOWN, (Slvs_hGroup)theGroupID,
 397           (Slvs_hEntity)theSketchID, SLVS_E_UNKNOWN, SLVS_E_UNKNOWN);
 398     } else {
 399       // Scalar value (used for the distance entities)
 400       AttributeDoublePtr aScalar =
 401           std::dynamic_pointer_cast<ModelAPI_AttributeDouble>(theAttribute);
 402       if (aScalar) {
 403         aParameters.push_back(createParameter(theGroupID, aScalar->value(), !aScalar->text().empty()));
 404         // Create entity (parameter is not filled)
 405         anEntity = Slvs_MakeDistance(SLVS_E_UNKNOWN, (Slvs_hGroup)theGroupID,
 406           (Slvs_hEntity)theSketchID, SLVS_E_UNKNOWN);
 407       }
 408     }
 409   }
 410
 411   if (anEntity.type == 0) {
 412     // unknown attribute type
 413     return EntityWrapperPtr();
 414   }
 415
 416   EntityWrapperPtr aResult(new SolveSpaceSolver_EntityWrapper(theAttribute, anEntity));
 417   aResult->setParameters(aParameters);
 418   return aResult;
 419 }
 420
 421
 422
 423 EntityWrapperPtr SolveSpaceSolver_Builder::createSketchEntity(
 424     CompositeFeaturePtr theSketch,
 425     const GroupID& theGroupID) const
 426 {
 427   DataPtr aSketchData = theSketch->data();
 428   if (!aSketchData || !aSketchData->isValid())
 429     return EntityWrapperPtr(); // the sketch is incorrect
 430
 431   // Get parameters of workplane
 432   AttributePtr aDirX    = aSketchData->attribute(SketchPlugin_Sketch::DIRX_ID());
 433   AttributePtr aNorm    = aSketchData->attribute(SketchPlugin_Sketch::NORM_ID());
 434   AttributePtr anOrigin = aSketchData->attribute(SketchPlugin_Sketch::ORIGIN_ID());
 435   if (!anOrigin->isInitialized() || !aNorm->isInitialized() || !aDirX->isInitialized())
 436     return EntityWrapperPtr();
 437
 438   EntityWrapperPtr aNewEnt;
 439   std::list<EntityWrapperPtr> aSubs;
 440
 441   // Create SolveSpace entity corresponding to the sketch origin
 442   aNewEnt = createAttribute(anOrigin, theGroupID);
 443   if (!aNewEnt)
 444     return EntityWrapperPtr();
 445   aSubs.push_back(aNewEnt);
 446
 447   // Create SolveSpace entity corresponding the the sketch normal
 448   aNewEnt = createNormal(aNorm, aDirX, theGroupID);
 449   if (!aNewEnt)
 450     return EntityWrapperPtr();
 451   aSubs.push_back(aNewEnt);
 452
 453   // Create workplane
 454   Slvs_Entity aWorkplane = Slvs_MakeWorkplane(SLVS_E_UNKNOWN, (Slvs_hGroup)theGroupID,
 455       SLVS_E_UNKNOWN, SLVS_E_UNKNOWN);
 456
 457   aNewEnt = EntityWrapperPtr(
 458       new SolveSpaceSolver_EntityWrapper(FeaturePtr(theSketch), aWorkplane));
 459   aNewEnt->setSubEntities(aSubs);
 460   return aNewEnt;
 461 }
 462
 463 EntityWrapperPtr SolveSpaceSolver_Builder::createNormal(
 464     AttributePtr theNormal,
 465     AttributePtr theDirX,
 466     const GroupID& theGroupID) const
 467 {
 468   std::shared_ptr<GeomDataAPI_Dir> aNorm = std::dynamic_pointer_cast<GeomDataAPI_Dir>(theNormal);
 469   std::shared_ptr<GeomDataAPI_Dir> aDirX = std::dynamic_pointer_cast<GeomDataAPI_Dir>(theDirX);
 470   if (!aDirX || !aNorm ||
 471       (fabs(aDirX->x()) + fabs(aDirX->y()) + fabs(aDirX->z()) < tolerance) ||
 472       !aNorm->isInitialized())
 473     return EntityWrapperPtr();
 474   // calculate Y direction
 475   std::shared_ptr<GeomAPI_Dir> aDirY(new GeomAPI_Dir(aNorm->dir()->cross(aDirX->dir())));
 476
 477   // quaternion parameters of normal vector
 478   double qw, qx, qy, qz;
 479   Slvs_MakeQuaternion(aDirX->x(), aDirX->y(), aDirX->z(), aDirY->x(), aDirY->y(), aDirY->z(), &qw,
 480                       &qx, &qy, &qz);
 481   double aNormCoord[4] = { qw, qx, qy, qz };
 482
 483   // Create parameters of the normal
 484   std::list<ParameterWrapperPtr> aParameters;
 485   for (int i = 0; i < 4; i++)
 486     aParameters.push_back(createParameter(theGroupID, aNormCoord[i]));
 487
 488   // Create a normal with empty parameters
 489   Slvs_Entity aNormalEnt = Slvs_MakeNormal3d(SLVS_E_UNKNOWN, (Slvs_hGroup)theGroupID,
 490       SLVS_E_UNKNOWN, SLVS_E_UNKNOWN, SLVS_E_UNKNOWN, SLVS_E_UNKNOWN);
 491   EntityWrapperPtr aNormal(new SolveSpaceSolver_EntityWrapper(theNormal, aNormalEnt));
 492   aNormal->setParameters(aParameters);
 493   return aNormal;
 494 }
 495
 496 ParameterWrapperPtr SolveSpaceSolver_Builder::createParameter(
 497     const GroupID& theGroup, const double theValue, const bool theExpr) const
 498 {
 499   Slvs_Param aParam = Slvs_MakeParam(SLVS_E_UNKNOWN, (Slvs_hGroup)theGroup, theValue);
 500   ParameterWrapperPtr aWrapper(new SolveSpaceSolver_ParameterWrapper(aParam));
 501   aWrapper->setIsParametric(theExpr);
 502   return aWrapper;
 503 }
 504
 505
 506
 507
 508
 509 // ================   Auxiliary functions   ==========================
 510 EntityWrapperPtr createLine(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 aStart = theFeature->attribute(SketchPlugin_Line::START_ID());
 519   AttributePtr aEnd = theFeature->attribute(SketchPlugin_Line::END_ID());
 520   if (!aStart->isInitialized() || !aEnd->isInitialized())
 521     return aNewEntity;
 522
 523   EntityWrapperPtr aStartEnt, aEndEnt;
 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(aStart))
 529       aStartEnt = aSlvsEntity;
 530     else if (aSlvsEntity->isBase(aEnd))
 531       aEndEnt = aSlvsEntity;
 532   }
 533   if (!aStartEnt || !aEndEnt)
 534     return aNewEntity;
 535
 536   aSubs.push_back(aStartEnt);
 537   aSubs.push_back(aEndEnt);
 538   Slvs_Entity anEntity = Slvs_MakeLineSegment(SLVS_E_UNKNOWN, (Slvs_hGroup)theGroupID,
 539       (Slvs_hEntity)theSketchID, (Slvs_hEntity)aStartEnt->id(), (Slvs_hEntity)aEndEnt->id());
 540
 541   aNewEntity = EntityWrapperPtr(new SolveSpaceSolver_EntityWrapper(theFeature, anEntity));
 542   aNewEntity->setSubEntities(aSubs);
 543   return aNewEntity;
 544 }
 545
 546 EntityWrapperPtr createCircle(FeaturePtr theFeature,
 547                               const std::list<EntityWrapperPtr>& theAttributes,
 548                               const GroupID& theGroupID,
 549                               const EntityID& theSketchID)
 550 {
 551   EntityWrapperPtr aNewEntity;
 552   std::list<EntityWrapperPtr> aSubs;
 553
 554   AttributePtr aCenter = theFeature->attribute(SketchPlugin_Circle::CENTER_ID());
 555   AttributePtr aRadius = theFeature->attribute(SketchPlugin_Circle::RADIUS_ID());
 556   if (!aCenter->isInitialized() || !aRadius->isInitialized())
 557     return aNewEntity;
 558
 559   EntityWrapperPtr aCenterEnt, aRadiusEnt, aNormalEnt;
 560   std::list<EntityWrapperPtr>::const_iterator anIt = theAttributes.begin();
 561   for (; anIt != theAttributes.end(); ++anIt) {
 562     std::shared_ptr<SolveSpaceSolver_EntityWrapper> aSlvsEntity =
 563         std::dynamic_pointer_cast<SolveSpaceSolver_EntityWrapper>(*anIt);
 564     if (aSlvsEntity->isBase(aCenter))
 565       aCenterEnt = aSlvsEntity;
 566     else if (aSlvsEntity->isBase(aRadius))
 567       aRadiusEnt = aSlvsEntity;
 568     else if (aSlvsEntity->type() == ENTITY_NORMAL)
 569       aNormalEnt = aSlvsEntity;
 570   }
 571   if (!aCenterEnt || !aRadiusEnt || !aNormalEnt)
 572     return aNewEntity;
 573
 574   aSubs.push_back(aCenterEnt);
 575   aSubs.push_back(aRadiusEnt);
 576   Slvs_Entity anEntity = Slvs_MakeCircle(SLVS_E_UNKNOWN, (Slvs_hGroup)theGroupID,
 577       (Slvs_hEntity)theSketchID, (Slvs_hEntity)aCenterEnt->id(),
 578       (Slvs_hEntity)aNormalEnt->id(), (Slvs_hEntity)aRadiusEnt->id());
 579
 580   aNewEntity = EntityWrapperPtr(new SolveSpaceSolver_EntityWrapper(theFeature, anEntity));
 581   aNewEntity->setSubEntities(aSubs);
 582   return aNewEntity;
 583 }
 584
 585 EntityWrapperPtr createArc(FeaturePtr theFeature,
 586                            const std::list<EntityWrapperPtr>& theAttributes,
 587                            const GroupID& theGroupID,
 588                            const EntityID& theSketchID)
 589 {
 590   EntityWrapperPtr aNewEntity;
 591   std::list<EntityWrapperPtr> aSubs;
 592
 593   AttributePtr aCenter = theFeature->attribute(SketchPlugin_Arc::CENTER_ID());
 594   AttributePtr aStart = theFeature->attribute(SketchPlugin_Arc::START_ID());
 595   AttributePtr aEnd = theFeature->attribute(SketchPlugin_Arc::END_ID());
 596   if (!aCenter->isInitialized() || !aStart->isInitialized() || !aEnd->isInitialized())
 597     return aNewEntity;
 598
 599   EntityWrapperPtr aCenterEnt, aStartEnt, aEndEnt, aNormalEnt;
 600   std::list<EntityWrapperPtr>::const_iterator anIt = theAttributes.begin();
 601   for (; anIt != theAttributes.end(); ++anIt) {
 602     std::shared_ptr<SolveSpaceSolver_EntityWrapper> aSlvsEntity =
 603         std::dynamic_pointer_cast<SolveSpaceSolver_EntityWrapper>(*anIt);
 604     if (aSlvsEntity->isBase(aCenter))
 605       aCenterEnt = aSlvsEntity;
 606     else if (aSlvsEntity->isBase(aStart))
 607       aStartEnt = aSlvsEntity;
 608     else if (aSlvsEntity->isBase(aEnd))
 609       aEndEnt = aSlvsEntity;
 610     else if (aSlvsEntity->type() == ENTITY_NORMAL)
 611       aNormalEnt = aSlvsEntity;
 612   }
 613   if (!aCenterEnt || !aStartEnt || !aEndEnt || !aNormalEnt)
 614     return aNewEntity;
 615
 616   aSubs.push_back(aCenterEnt);
 617   aSubs.push_back(aStartEnt);
 618   aSubs.push_back(aEndEnt);
 619   Slvs_Entity anEntity = Slvs_MakeArcOfCircle(SLVS_E_UNKNOWN, (Slvs_hGroup)theGroupID,
 620       (Slvs_hEntity)theSketchID, (Slvs_hEntity)aNormalEnt->id(),
 621       (Slvs_hEntity)aCenterEnt->id(), (Slvs_hEntity)aStartEnt->id(), (Slvs_hEntity)aEndEnt->id());
 622
 623   aNewEntity = EntityWrapperPtr(new SolveSpaceSolver_EntityWrapper(theFeature, anEntity));
 624   aNewEntity->setSubEntities(aSubs);
 625   return aNewEntity;
 626 }
 627
 628
 629 void adjustTangency(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   // Collect start, end points of entities
 637   std::shared_ptr<GeomAPI_Pnt2d> aStartEntPoints[2][2];
 638   bool isCoinc[2][2] = {false};
 639   const std::list<EntityWrapperPtr>& aSubs = aConstraint->entities();
 640   std::list<EntityWrapperPtr>::const_iterator aSIt = aSubs.begin();
 641   for (int i = 0; aSIt != aSubs.end(); ++aSIt, ++i) {
 642     const std::list<EntityWrapperPtr>& aPoints = (*aSIt)->subEntities();
 643     std::list<EntityWrapperPtr>::const_iterator aPIt = aPoints.begin();
 644     if ((*aSIt)->type() == ENTITY_ARC)
 645       ++aPIt;
 646     for (int j = 0; aPIt != aPoints.end(); ++aPIt, ++j) {
 647       aStartEntPoints[i][j] = aBuilder->point(*aPIt);
 648       if (i > 0) { // check coincidence
 649         for (int k = 0; k < 2; ++k)
 650           if (aStartEntPoints[i][j]->distance(aStartEntPoints[0][k]) < tolerance)
 651             isCoinc[0][k] = isCoinc[i][j] = true;
 652       }
 653     }
 654   }
 655
 656   Slvs_Constraint& aSlvsConstraint = aConstraint->changeConstraint();
 657   if (isCoinc[0][0] == false && isCoinc[0][1] == true)
 658     aSlvsConstraint.other = 1;
 659   else aSlvsConstraint.other = 0;
 660   if (isCoinc[1][0] == false && isCoinc[1][1] == true)
 661     aSlvsConstraint.other2 = 1;
 662   else aSlvsConstraint.other2 = 0;
 663 }
 664
 665 void adjustAngle(ConstraintWrapperPtr theConstraint)
 666 {
 667   BuilderPtr aBuilder = SolveSpaceSolver_Builder::getInstance();
 668
 669   std::shared_ptr<SolveSpaceSolver_ConstraintWrapper> aConstraint =
 670     std::dynamic_pointer_cast<SolveSpaceSolver_ConstraintWrapper>(theConstraint);
 671
 672   bool isFixed[2][2];
 673   std::shared_ptr<GeomAPI_Pnt2d> aPoints[2][2]; // start and end points of lines
 674   const std::list<EntityWrapperPtr>& aConstrLines = aConstraint->entities();
 675   std::list<EntityWrapperPtr>::const_iterator aCLIt = aConstrLines.begin();
 676   for (int i = 0; aCLIt != aConstrLines.end(); ++i, ++aCLIt) {
 677     const std::list<EntityWrapperPtr>& aLinePoints = (*aCLIt)->subEntities();
 678     std::list<EntityWrapperPtr>::const_iterator aLPIt = aLinePoints.begin();
 679     for (int j = 0; aLPIt != aLinePoints.end(); ++j, ++aLPIt) {
 680       isFixed[i][j] = ((*aLPIt)->group() != theConstraint->group());
 681       aPoints[i][j] = aBuilder->point(*aLPIt);
 682     }
 683   }
 684
 685   if (isFixed[0][0] && isFixed[0][1] && isFixed[1][0] && isFixed[1][1])
 686     return; // both lines are fixed => no need to update them
 687
 688   std::shared_ptr<GeomAPI_Lin2d> aLine[2] = {
 689     std::shared_ptr<GeomAPI_Lin2d>(new GeomAPI_Lin2d(aPoints[0][0], aPoints[0][1])),
 690     std::shared_ptr<GeomAPI_Lin2d>(new GeomAPI_Lin2d(aPoints[1][0], aPoints[1][1]))
 691   };
 692   bool isReversed[2] = {
 693     aConstraint->baseConstraint()->boolean(
 694         SketchPlugin_ConstraintAngle::ANGLE_REVERSED_FIRST_LINE_ID())->value(),
 695     aConstraint->baseConstraint()->boolean(
 696         SketchPlugin_ConstraintAngle::ANGLE_REVERSED_SECOND_LINE_ID())->value()
 697   };
 698   std::shared_ptr<GeomAPI_Angle2d> anAngle(new GeomAPI_Angle2d(aLine[0], isReversed[0], aLine[1], isReversed[1]));
 699   std::shared_ptr<GeomAPI_Pnt2d> aCenter = anAngle->center();
 700
 701   std::shared_ptr<GeomAPI_Dir2d> aDir[2];
 702
 703   Slvs_Constraint& aSlvsConstraint = aConstraint->changeConstraint();
 704   aSlvsConstraint.other = false;
 705   for (int i = 0; i < 2; i++) {
 706     aDir[i] = aLine[i]->direction();
 707     if (isReversed[i]) {
 708       aSlvsConstraint.other = !aSlvsConstraint.other;
 709       aDir[i]->reverse();
 710     }
 711   }
 712
 713   double aDist[2][2];
 714   for (int i = 0; i < 2; i++) {
 715     for (int j = 0; j < 2; j++) {
 716       aDist[i][j] = aCenter->distance(aPoints[i][j]);
 717       if (fabs(aDist[i][j]) <= tolerance)
 718         aDist[i][j] = 0.0;
 719     }
 720     if (aDist[i][0] > tolerance && aDist[i][1] > tolerance &&
 721         aDist[i][0] + aDist[i][1] < aPoints[i][0]->distance(aPoints[i][1]) + 2.0 * tolerance) {
 722       // the intersection point is an inner point of the line,
 723       // we change the sign of distance till start point to calculate correct coordinates
 724       // after rotation
 725       aDist[i][0] *= -1.0;
 726     }
 727   }
 728
 729   // Recalculate positions of lines to avoid conflicting constraints
 730   // while changing angle value several times
 731   double cosA = cos(aConstraint->value() * PI / 180.0);
 732   double sinA = sin(aConstraint->value() * PI / 180.0);
 733   //if (aDir[0]->cross(aDir[1]) < 0.0)
 734   //  sinA *= -1.0;
 735   int aLineToUpd = 1;
 736   if (isFixed[1][0] && isFixed[1][1]) {
 737     sinA *= -1.0;
 738     aLineToUpd = 0;
 739   }
 740   double x = aDir[1-aLineToUpd]->x() * cosA - aDir[1-aLineToUpd]->y() * sinA;
 741   double y = aDir[1-aLineToUpd]->x() * sinA + aDir[1-aLineToUpd]->y() * cosA;
 742
 743   std::shared_ptr<GeomAPI_Pnt2d> aNewPoints[2];
 744   for (int i = 0; i < 2; i++) {
 745     aNewPoints[i] = std::shared_ptr<GeomAPI_Pnt2d>(
 746         new GeomAPI_Pnt2d(aCenter->x() + x * aDist[aLineToUpd][i],
 747                           aCenter->y() + y * aDist[aLineToUpd][i]));
 748   }
 749
 750   std::shared_ptr<GeomAPI_XY> aDelta;
 751   if (isFixed[aLineToUpd][0] && !isFixed[aLineToUpd][1])
 752     aDelta = aPoints[aLineToUpd][0]->xy()->decreased(aNewPoints[0]->xy());
 753   else if (!isFixed[aLineToUpd][0] && isFixed[aLineToUpd][1])
 754     aDelta = aPoints[aLineToUpd][1]->xy()->decreased(aNewPoints[1]->xy());
 755   if (aDelta) {
 756     for (int i = 0; i < 2; i++) {
 757       aNewPoints[i]->setX(aNewPoints[i]->x() + aDelta->x());
 758       aNewPoints[i]->setY(aNewPoints[i]->y() + aDelta->y());
 759     }
 760   }
 761
 762   // Update positions of points
 763   std::list<EntityWrapperPtr>::const_iterator anUpdLine = aConstrLines.begin();
 764   if (aLineToUpd > 0) ++anUpdLine;
 765   const std::list<EntityWrapperPtr>& anUpdPoints = (*anUpdLine)->subEntities();
 766   std::list<EntityWrapperPtr>::const_iterator aPIt = anUpdPoints.begin();
 767   for (int i = 0; aPIt != anUpdPoints.end(); ++aPIt, ++i) {
 768     std::shared_ptr<GeomDataAPI_Point2D> aPnt2D =
 769         std::dynamic_pointer_cast<GeomDataAPI_Point2D>((*aPIt)->baseAttribute());
 770     aPnt2D->setValue(aNewPoints[i]);
 771   }
 772 }
 773
 774 void adjustMirror(ConstraintWrapperPtr theConstraint)
 775 {
 776   std::vector<EntityWrapperPtr> aPoints;
 777   EntityWrapperPtr aMirrorLine;
 778
 779   const std::list<EntityWrapperPtr>& aSubs = theConstraint->entities();
 780   std::list<EntityWrapperPtr>::const_iterator anIt = aSubs.begin();
 781   for (; anIt != aSubs.end(); ++anIt) {
 782     if ((*anIt)->type() == ENTITY_POINT)
 783       aPoints.push_back(*anIt);
 784     else if ((*anIt)->type() == ENTITY_LINE)
 785       aMirrorLine = *anIt;
 786   }
 787
 788   makeMirrorPoints(aPoints[0], aPoints[1], aMirrorLine);
 789 }
 790
 791 void makeMirrorPoints(EntityWrapperPtr theOriginal,
 792                       EntityWrapperPtr theMirrored,
 793                       EntityWrapperPtr theMirrorLine)
 794 {
 795   BuilderPtr aBuilder = SolveSpaceSolver_Builder::getInstance();
 796
 797   std::shared_ptr<GeomAPI_Lin2d> aMirrorLine = aBuilder->line(theMirrorLine);
 798   std::shared_ptr<GeomAPI_Dir2d> aMLDir = aMirrorLine->direction();
 799   // orthogonal direction
 800   aMLDir = std::shared_ptr<GeomAPI_Dir2d>(new GeomAPI_Dir2d(aMLDir->y(), -aMLDir->x()));
 801
 802   std::shared_ptr<GeomAPI_Pnt2d> aPoint = aBuilder->point(theOriginal);
 803   std::shared_ptr<GeomAPI_XY> aVec = aPoint->xy()->decreased(aMirrorLine->location()->xy());
 804   double aDist = aVec->dot(aMLDir->xy());
 805   aVec = aPoint->xy()->added(aMLDir->xy()->multiplied(-2.0 * aDist));
 806   double aCoord[2] = {aVec->x(), aVec->y()};
 807   std::list<ParameterWrapperPtr>::const_iterator aMIt = theMirrored->parameters().begin();
 808   for (int i = 0; aMIt != theMirrored->parameters().end(); ++aMIt, ++i)
 809     (*aMIt)->setValue(aCoord[i]);
 810
 811   // update corresponding attribute
 812   AttributePtr anAttr = std::dynamic_pointer_cast<SolveSpaceSolver_EntityWrapper>(theMirrored)->baseAttribute();
 813   if (anAttr) {
 814     std::shared_ptr<GeomDataAPI_Point2D> aMirroredPnt = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(anAttr);
 815     aMirroredPnt->setValue(aCoord[0], aCoord[1]);
 816   }
 817 }
 818
 819 void adjustPtLineDistance(ConstraintWrapperPtr theConstraint)
 820 {
 821   BuilderPtr aBuilder = SolveSpaceSolver_Builder::getInstance();
 822
 823   std::shared_ptr<GeomAPI_Pnt2d> aPoint;
 824   std::shared_ptr<GeomAPI_Lin2d> aLine;
 825   std::list<EntityWrapperPtr> aSubs = theConstraint->entities();
 826   std::list<EntityWrapperPtr>::const_iterator aSIt = aSubs.begin();
 827   for (; aSIt != aSubs.end(); ++aSIt) {
 828     if ((*aSIt)->type() == ENTITY_POINT)
 829       aPoint = aBuilder->point(*aSIt);
 830     else if ((*aSIt)->type() == ENTITY_LINE)
 831       aLine = aBuilder->line(*aSIt);
 832   }
 833
 834   std::shared_ptr<GeomAPI_XY> aLineVec = aLine->direction()->xy();
 835   std::shared_ptr<GeomAPI_XY> aPtLineVec = aPoint->xy()->decreased(aLine->location()->xy());
 836   if (aPtLineVec->cross(aLineVec) * theConstraint->value() < 0.0)
 837     theConstraint->setValue(theConstraint->value() * (-1.0));
 838 }