src/SketchSolver/SketchSolver_ConstraintCoincidence.cpp

   1 #include <SketchSolver_ConstraintCoincidence.h>
   2 #include <SketchSolver_Error.h>
   3 #include <SketchSolver_Group.h>
   4
   5 #include <map>
   6
   7 void SketchSolver_ConstraintCoincidence::getAttributes(
   8     double& theValue,
   9     std::vector<Slvs_hEntity>& theAttributes)
  10 {
  11   SketchSolver_Constraint::getAttributes(theValue, theAttributes);
  12   if (!myErrorMsg.empty() || theAttributes[0] == SLVS_E_UNKNOWN)
  13     return;
  14
  15   if (theAttributes[1] != SLVS_E_UNKNOWN)
  16     myType = SLVS_C_POINTS_COINCIDENT;
  17   else if (theAttributes[2] != SLVS_E_UNKNOWN) {
  18     // check the type of entity (line or circle)
  19     Slvs_Entity anEnt = myStorage->getEntity(theAttributes[2]);
  20     if (anEnt.type == SLVS_E_LINE_SEGMENT)
  21       myType = SLVS_C_PT_ON_LINE;
  22     else if (anEnt.type == SLVS_E_CIRCLE || anEnt.type == SLVS_E_ARC_OF_CIRCLE)
  23       myType = SLVS_C_PT_ON_CIRCLE;
  24     else
  25       myErrorMsg = SketchSolver_Error::INCORRECT_ATTRIBUTE();
  26   } else
  27     myErrorMsg = SketchSolver_Error::INCORRECT_ATTRIBUTE();
  28 }
  29
  30
  31 bool SketchSolver_ConstraintCoincidence::hasConstraint(ConstraintPtr theConstraint) const
  32 {
  33   if (myBaseConstraint == theConstraint)
  34     return true;
  35   std::map<Slvs_hConstraint, ConstraintPtr>::const_iterator anIt = myExtraCoincidence.begin();
  36   for (; anIt != myExtraCoincidence.end(); anIt++)
  37     if (anIt->second == theConstraint)
  38       return true;
  39   return false;
  40 }
  41
  42 std::list<ConstraintPtr> SketchSolver_ConstraintCoincidence::constraints() const
  43 {
  44   std::list<ConstraintPtr> aConstraints;
  45   aConstraints.push_back(myBaseConstraint);
  46   std::map<Slvs_hConstraint, ConstraintPtr>::const_iterator anIt = myExtraCoincidence.begin();
  47   for (; anIt != myExtraCoincidence.end(); anIt++)
  48     aConstraints.push_back(anIt->second);
  49   return aConstraints;
  50 }
  51
  52 bool SketchSolver_ConstraintCoincidence::isCoincide(
  53     std::shared_ptr<SketchSolver_ConstraintCoincidence> theConstraint) const
  54 {
  55   // Multi-coincidence allowed for two points only
  56   if (getType() != theConstraint->getType() || getType() != SLVS_C_POINTS_COINCIDENT)
  57     return false;
  58
  59   std::set<AttributePtr>::const_iterator anAttrIter = theConstraint->myCoincidentPoints.begin();
  60   for (; anAttrIter != theConstraint->myCoincidentPoints.end(); anAttrIter++)
  61     if (myCoincidentPoints.find(*anAttrIter) != myCoincidentPoints.end())
  62       return true;
  63   return false;
  64 }
  65
  66 void SketchSolver_ConstraintCoincidence::attach(
  67     std::shared_ptr<SketchSolver_ConstraintCoincidence> theConstraint)
  68 {
  69   cleanErrorMsg();
  70   Slvs_Constraint aBaseCoincidence = myStorage->getConstraint(mySlvsConstraints.front());
  71   // Remove constraints from theConstraint
  72   std::vector<Slvs_hConstraint>::iterator aCIter = theConstraint->mySlvsConstraints.begin();
  73   for (; aCIter != theConstraint->mySlvsConstraints.end(); aCIter++)
  74     theConstraint->myStorage->removeConstraint(*aCIter);
  75
  76   if (myStorage == theConstraint->myStorage) {
  77     // Clean removed items
  78     std::set<Slvs_hParam> aRemParams;
  79     std::set<Slvs_hEntity> aRemEnts;
  80     std::set<Slvs_hConstraint> aRemConstr;
  81     theConstraint->myStorage->getRemoved(aRemParams, aRemEnts, aRemConstr);
  82   }
  83
  84   // Copy data.
  85   addConstraint(theConstraint->myBaseConstraint);
  86   std::map<Slvs_hConstraint, ConstraintPtr>::iterator aConstrIter =
  87       theConstraint->myExtraCoincidence.begin();
  88   for (; aConstrIter != theConstraint->myExtraCoincidence.end(); aConstrIter++)
  89     addConstraint(aConstrIter->second);
  90   // Clear the lists to not remove the entities on destruction
  91   theConstraint->mySlvsConstraints.clear();
  92   theConstraint->myFeatureMap.clear();
  93   theConstraint->myAttributeMap.clear();
  94 }
  95
  96 Slvs_hConstraint SketchSolver_ConstraintCoincidence::addConstraint(
  97     Slvs_hEntity thePoint1, Slvs_hEntity thePoint2)
  98 {
  99   bool hasDuplicated = myStorage->hasDuplicatedConstraint();
 100   Slvs_Constraint aNewConstraint = Slvs_MakeConstraint(SLVS_E_UNKNOWN, myGroup->getId(),
 101       SLVS_C_POINTS_COINCIDENT, myGroup->getWorkplaneId(), 0.0, thePoint1, thePoint2,
 102       SLVS_E_UNKNOWN, SLVS_E_UNKNOWN);
 103   Slvs_hConstraint aNewID = myStorage->addConstraint(aNewConstraint);
 104   if (!hasDuplicated && myStorage->hasDuplicatedConstraint()) {
 105     // the duplicated constraint appears
 106     myStorage->removeConstraint(aNewID);
 107     return SLVS_E_UNKNOWN;
 108   }
 109   mySlvsConstraints.push_back(aNewID);
 110   return aNewID;
 111 }
 112
 113 void SketchSolver_ConstraintCoincidence::addConstraint(ConstraintPtr theConstraint)
 114 {
 115   std::list<AttributePtr> anAttrList =
 116       theConstraint->data()->attributes(ModelAPI_AttributeRefAttr::typeId());
 117   std::list<AttributePtr>::iterator anIter = anAttrList.begin();
 118   std::vector<Slvs_hEntity> anEntities;
 119   for (; anIter != anAttrList.end(); anIter++) {
 120     AttributeRefAttrPtr aRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(*anIter);
 121     if (!aRefAttr || aRefAttr->isObject() ||
 122         myAttributeMap.find(aRefAttr->attr()) != myAttributeMap.end())
 123       continue;
 124     int aType;
 125     Slvs_hEntity anEntityID = myGroup->getAttributeId(aRefAttr->attr());
 126     if (anEntityID == SLVS_E_UNKNOWN)
 127       anEntityID = changeEntity(aRefAttr->attr(), aType);
 128     anEntities.push_back(anEntityID);
 129     myCoincidentPoints.insert(aRefAttr->attr());
 130   }
 131
 132   Slvs_Constraint aBaseCoincidence = myStorage->getConstraint(mySlvsConstraints.front());
 133   Slvs_hConstraint aNewConstr = SLVS_E_UNKNOWN;
 134   std::vector<Slvs_hEntity>::iterator anEntIter = anEntities.begin();
 135   for (; anEntIter != anEntities.end(); anEntIter++)
 136     aNewConstr = addConstraint(aBaseCoincidence.ptA, *anEntIter);
 137   myExtraCoincidence[aNewConstr] = theConstraint;
 138 }
 139
 140 void SketchSolver_ConstraintCoincidence::process()
 141 {
 142   SketchSolver_Constraint::process();
 143
 144   // Fill the list of coincident points
 145   std::list<AttributePtr> anAttrList =
 146       myBaseConstraint->data()->attributes(ModelAPI_AttributeRefAttr::typeId());
 147   std::list<AttributePtr>::iterator anIt = anAttrList.begin();
 148   for (; anIt != anAttrList.end(); anIt++) {
 149     AttributeRefAttrPtr aRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(*anIt);
 150     if (!aRefAttr || aRefAttr->isObject())
 151       continue;
 152     myCoincidentPoints.insert(aRefAttr->attr());
 153   }
 154 }
 155
 156 bool SketchSolver_ConstraintCoincidence::remove(ConstraintPtr theConstraint)
 157 {
 158   cleanErrorMsg();
 159   if (mySlvsConstraints.empty())
 160     return true;
 161   ConstraintPtr aConstraint = theConstraint ? theConstraint : myBaseConstraint;
 162   int aPos = -1; // position of constraint in the list (-1 for base constraint)
 163   std::map<Slvs_hConstraint, ConstraintPtr>::iterator anExtraIt;
 164   if (aConstraint != myBaseConstraint) {
 165     anExtraIt = myExtraCoincidence.begin();
 166     for (aPos = 0; anExtraIt != myExtraCoincidence.end(); anExtraIt++, aPos++)
 167       if (anExtraIt->second == aConstraint)
 168         break;
 169     if (aPos >= (int)myExtraCoincidence.size())
 170       return false; // there is no constraint, which is specified to remove
 171     else {
 172       bool isEmpty = anExtraIt->first == SLVS_E_UNKNOWN;
 173       myExtraCoincidence.erase(anExtraIt);
 174       if (isEmpty)
 175         return false;
 176     }
 177   }
 178
 179   bool isFullyRemoved = myStorage->removeConstraint(mySlvsConstraints[aPos+1]);
 180   mySlvsConstraints.erase(mySlvsConstraints.begin() + (1+aPos));
 181   if (aPos < 0 && !myExtraCoincidence.empty()) {
 182     anExtraIt = myExtraCoincidence.begin();
 183     // Remove invalid constraints
 184     while (anExtraIt != myExtraCoincidence.end()) {
 185       if (!anExtraIt->second->data() || !anExtraIt->second->data()->isValid()) {
 186         std::map<Slvs_hConstraint, ConstraintPtr>::iterator aTempIt = anExtraIt++;
 187         if (aTempIt->first != SLVS_E_UNKNOWN) {
 188           myStorage->removeConstraint(aTempIt->first);
 189           std::vector<Slvs_hConstraint>::iterator anIt = mySlvsConstraints.begin();
 190           for (; anIt != mySlvsConstraints.end(); anIt++)
 191             if (*anIt == aTempIt->first) {
 192               mySlvsConstraints.erase(anIt);
 193               break;
 194             }
 195         }
 196         myExtraCoincidence.erase(aTempIt);
 197         continue;
 198       }
 199       anExtraIt++;
 200     }
 201     // Find first non-extra conststraint
 202     anExtraIt = myExtraCoincidence.begin();
 203     while (anExtraIt != myExtraCoincidence.end() && anExtraIt->first == SLVS_E_UNKNOWN)
 204       anExtraIt++;
 205     if (anExtraIt != myExtraCoincidence.end()) {
 206       // Need to specify another base coincidence constraint
 207       myBaseConstraint = anExtraIt->second;
 208       myExtraCoincidence.erase(anExtraIt);
 209       std::vector<Slvs_hConstraint>::iterator aCIter = mySlvsConstraints.begin();
 210       Slvs_Constraint aBase = myStorage->getConstraint(*aCIter);
 211       for (++aCIter; aCIter != mySlvsConstraints.end(); aCIter++) {
 212         Slvs_Constraint aConstr = myStorage->getConstraint(*aCIter);
 213         aConstr.ptA = aBase.ptA;
 214         myStorage->updateConstraint(aConstr);
 215       }
 216     }
 217   }
 218   // Clear removed attributes
 219   std::set<Slvs_hParam> aParamRemoved;
 220   std::set<Slvs_hEntity> anEntRemoved;
 221   std::set<Slvs_hConstraint> aConstrRemoved;
 222   myStorage->getRemoved(aParamRemoved, anEntRemoved, aConstrRemoved);
 223   std::map<AttributePtr, Slvs_hEntity>::iterator anAttrIter = myAttributeMap.begin();
 224   while (anAttrIter != myAttributeMap.end()) {
 225     if (anEntRemoved.find(anAttrIter->second) != anEntRemoved.end()) {
 226       std::map<AttributePtr, Slvs_hEntity>::iterator aTempIt = anAttrIter++;
 227       myCoincidentPoints.erase(aTempIt->first);
 228       myAttributeMap.erase(aTempIt);
 229       continue;
 230     }
 231     anAttrIter++;
 232   }
 233
 234   // Go through remaining extra coincidence and try to add or remove them
 235   anExtraIt = myExtraCoincidence.begin();
 236   while (anExtraIt != myExtraCoincidence.end()) {
 237     if (anExtraIt->first == SLVS_E_UNKNOWN) {
 238       if (!anExtraIt->second->data() || !anExtraIt->second->data()->isValid()) {
 239         std::map<Slvs_hConstraint, ConstraintPtr>::iterator aTempIt = anExtraIt++;
 240         myExtraCoincidence.erase(aTempIt);
 241         continue;
 242       }
 243       if (mySlvsConstraints.empty()) {
 244         myBaseConstraint = anExtraIt->second;
 245         std::map<Slvs_hConstraint, ConstraintPtr>::iterator aTempIt = anExtraIt++;
 246         myExtraCoincidence.erase(aTempIt);
 247         process();
 248         continue;
 249       } else
 250         addConstraint(anExtraIt->second);
 251     }
 252     anExtraIt++;
 253   }
 254   return mySlvsConstraints.empty();
 255 }
 256