src/SketchSolver/SketchSolver_Constraint.cpp

   1 #include <SketchSolver_Constraint.h>
   2 #include <SketchSolver_Group.h>
   3 #include <SketchSolver_Error.h>
   4 #include <SketchSolver_Manager.h>
   5
   6 #include <SketchPlugin_Arc.h>
   7 #include <SketchPlugin_Circle.h>
   8 #include <SketchPlugin_Line.h>
   9 #include <SketchPlugin_Point.h>
  10
  11 #include <SketchPlugin_ConstraintAngle.h>
  12 #include <SketchPlugin_ConstraintCoincidence.h>
  13 #include <SketchPlugin_ConstraintDistance.h>
  14 #include <SketchPlugin_ConstraintEqual.h>
  15 #include <SketchPlugin_ConstraintHorizontal.h>
  16 #include <SketchPlugin_ConstraintLength.h>
  17 #include <SketchPlugin_ConstraintMirror.h>
  18 #include <SketchPlugin_ConstraintParallel.h>
  19 #include <SketchPlugin_ConstraintPerpendicular.h>
  20 #include <SketchPlugin_ConstraintRadius.h>
  21 #include <SketchPlugin_ConstraintRigid.h>
  22 #include <SketchPlugin_ConstraintTangent.h>
  23 #include <SketchPlugin_ConstraintVertical.h>
  24
  25 #include <GeomAPI_Dir2d.h>
  26 #include <GeomDataAPI_Point.h>
  27 #include <GeomDataAPI_Point2D.h>
  28 #include <ModelAPI_AttributeDouble.h>
  29 #include <ModelAPI_ResultConstruction.h>
  30
  31 #include <math.h>
  32
  33 SketchSolver_Constraint::SketchSolver_Constraint(
  34     ConstraintPtr  theConstraint)
  35   : myBaseConstraint(theConstraint),
  36     myGroupID(GID_UNKNOWN),
  37     myType(CONSTRAINT_UNKNOWN)
  38 {
  39 }
  40
  41 void SketchSolver_Constraint::process(StoragePtr theStorage,
  42                                       const GroupID& theGroupID,
  43                                       const EntityID& theSketchID)
  44 {
  45   myStorage = theStorage;
  46   myGroupID = theGroupID;
  47   mySketchID = theSketchID;
  48   // Process constraint according to its type
  49   process();
  50 }
  51
  52
  53 SketchSolver_ConstraintType SketchSolver_Constraint::TYPE(ConstraintPtr theConstraint)
  54 {
  55   const std::string& aType = theConstraint->getKind();
  56   if (aType == SketchPlugin_ConstraintCoincidence::ID())
  57     return CONSTRAINT_COINCIDENCE;
  58   else if (aType == SketchPlugin_ConstraintRigid::ID())
  59     return CONSTRAINT_FIXED;
  60   else if (aType == SketchPlugin_ConstraintHorizontal::ID())
  61     return CONSTRAINT_HORIZONTAL;
  62   else if (aType == SketchPlugin_ConstraintVertical::ID())
  63     return CONSTRAINT_VERTICAL;
  64   else if (aType == SketchPlugin_ConstraintAngle::ID())
  65     return CONSTRAINT_ANGLE;
  66   else if (aType == SketchPlugin_ConstraintDistance::ID())
  67     return CONSTRAINT_DISTANCE;
  68   else if (aType == SketchPlugin_ConstraintEqual::ID())
  69     return CONSTRAINT_EQUAL;
  70   else if (aType == SketchPlugin_ConstraintLength::ID())
  71     return CONSTRAINT_PT_PT_DISTANCE;
  72   else if (aType == SketchPlugin_ConstraintMirror::ID())
  73     return CONSTRAINT_SYMMETRIC;
  74   else if (aType == SketchPlugin_ConstraintParallel::ID())
  75     return CONSTRAINT_PARALLEL;
  76   else if (aType == SketchPlugin_ConstraintPerpendicular::ID())
  77     return CONSTRAINT_PERPENDICULAR;
  78   else if (aType == SketchPlugin_ConstraintRadius::ID())
  79     return CONSTRAINT_RADIUS;
  80   else if (aType == SketchPlugin_ConstraintTangent::ID())
  81     return CONSTRAINT_TANGENT;
  82   return CONSTRAINT_UNKNOWN;
  83 }
  84
  85 void SketchSolver_Constraint::process()
  86 {
  87   cleanErrorMsg();
  88   if (!myBaseConstraint || !myStorage || myGroupID == GID_UNKNOWN) {
  89     // Not enough parameters are assigned
  90     return;
  91   }
  92
  93   SketchSolver_ConstraintType aConstrType = getType();
  94   double aValue;
  95   std::vector<EntityWrapperPtr> anAttributes;
  96   getAttributes(aValue, anAttributes);
  97   if (!myErrorMsg.empty())
  98     return;
  99   if (anAttributes.empty()) {
 100     myErrorMsg = SketchSolver_Error::INCORRECT_ATTRIBUTE();
 101     return;
 102   }
 103   if (aConstrType == CONSTRAINT_UNKNOWN)
 104     aConstrType = getType();
 105
 106   BuilderPtr aBuilder = SketchSolver_Manager::instance()->builder();
 107   std::list<ConstraintWrapperPtr> aNewConstraints = aBuilder->createConstraint(
 108       myBaseConstraint, myGroupID, mySketchID, aConstrType,
 109       aValue, anAttributes[0], anAttributes[1], anAttributes[2], anAttributes[3]);
 110   myStorage->addConstraint(myBaseConstraint, aNewConstraints);
 111
 112   adjustConstraint();
 113 }
 114
 115 void SketchSolver_Constraint::update()
 116 {
 117   cleanErrorMsg();
 118   std::list<ConstraintWrapperPtr> aWrapper = myStorage->constraint(myBaseConstraint);
 119   std::list<ConstraintWrapperPtr>::iterator aWIt = aWrapper.begin();
 120
 121   // Check if attributes of constraint are changed, rebuild constraint
 122   std::set<AttributePtr> anAttributes;
 123   std::set<AttributePtr>::iterator aFoundAttr;
 124   std::set<FeaturePtr> aFeatures;
 125   std::set<FeaturePtr>::iterator aFoundFeat;
 126   for (int anEntIndex = 0; anEntIndex < 4; ++anEntIndex) {
 127     AttributePtr anAttr =
 128         myBaseConstraint->attribute(SketchPlugin_Constraint::ATTRIBUTE(anEntIndex));
 129     if (!anAttr)
 130       continue;
 131
 132     AttributeRefAttrPtr aRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(anAttr);
 133     if (aRefAttr) {
 134       if (aRefAttr->isObject()) {
 135         FeaturePtr aFeat = ModelAPI_Feature::feature(aRefAttr->object());
 136         if (myBaseConstraint->getKind() != SketchPlugin_ConstraintLength::ID())
 137           aFeatures.insert(aFeat);
 138         else {
 139           // Workaround for the Length constraint: add points of line, not line itself
 140           anAttributes.insert(aFeat->attribute(SketchPlugin_Line::START_ID()));
 141           anAttributes.insert(aFeat->attribute(SketchPlugin_Line::END_ID()));
 142         }
 143       } else
 144         anAttributes.insert(aRefAttr->attr());
 145     } else
 146       anAttributes.insert(anAttr);
 147   }
 148   bool hasNewAttr = !(anAttributes.empty() && aFeatures.empty());
 149   for (; hasNewAttr && aWIt != aWrapper.end(); ++ aWIt) {
 150     const std::list<EntityWrapperPtr>& aSubs = (*aWIt)->entities();
 151     std::list<EntityWrapperPtr>::const_iterator aSIt = aSubs.begin();
 152     for (; hasNewAttr && aSIt != aSubs.end(); ++aSIt) {
 153       if ((*aSIt)->baseAttribute()) {
 154         aFoundAttr = anAttributes.find((*aSIt)->baseAttribute());
 155         if (aFoundAttr != anAttributes.end())
 156           anAttributes.erase(aFoundAttr);
 157       } else {
 158         aFoundFeat = aFeatures.find((*aSIt)->baseFeature());
 159         if (aFoundFeat != aFeatures.end())
 160           aFeatures.erase(aFoundFeat);
 161       }
 162       hasNewAttr = !(anAttributes.empty() && aFeatures.empty());
 163     }
 164   }
 165   if (hasNewAttr) {
 166     remove();
 167     process();
 168     return;
 169   }
 170
 171   AttributeDoublePtr aValueAttr = std::dynamic_pointer_cast<ModelAPI_AttributeDouble>(
 172       myBaseConstraint->attribute(SketchPlugin_Constraint::VALUE()));
 173   if (aValueAttr) {
 174     for (aWIt = aWrapper.begin(); aWIt != aWrapper.end(); ++aWIt)
 175       if (fabs((*aWIt)->value() - aValueAttr->value()) > tolerance) {
 176         (*aWIt)->setValue(aValueAttr->value());
 177         myStorage->setNeedToResolve(true);
 178       }
 179   }
 180   myStorage->addConstraint(myBaseConstraint, aWrapper);
 181
 182   adjustConstraint();
 183 }
 184
 185 bool SketchSolver_Constraint::remove()
 186 {
 187   cleanErrorMsg();
 188   myType = CONSTRAINT_UNKNOWN;
 189   return myStorage->removeConstraint(myBaseConstraint);
 190 }
 191
 192 void SketchSolver_Constraint::getAttributes(
 193     double& theValue,
 194     std::vector<EntityWrapperPtr>& theAttributes)
 195 {
 196   static const int anInitNbOfAttr = 4;
 197   theAttributes.assign(anInitNbOfAttr, EntityWrapperPtr());
 198
 199   DataPtr aData = myBaseConstraint->data();
 200   BuilderPtr aBuilder = SketchSolver_Manager::instance()->builder();
 201
 202   myType = TYPE(myBaseConstraint);
 203
 204   AttributeDoublePtr aValueAttr = std::dynamic_pointer_cast<ModelAPI_AttributeDouble>(
 205       aData->attribute(SketchPlugin_Constraint::VALUE()));
 206   theValue = aValueAttr ? aValueAttr->value() : 0.0;
 207
 208   int aPtInd = 0; // index of first point in the list of attributes
 209   int aEntInd = 2; // index of first entity in the list of attributes
 210   std::list<AttributePtr> aConstrAttrs = aData->attributes(ModelAPI_AttributeRefAttr::typeId());
 211   std::list<AttributePtr>::iterator anIter = aConstrAttrs.begin();
 212   for (; anIter != aConstrAttrs.end(); anIter++) {
 213     AttributeRefAttrPtr aRefAttr =
 214         std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(*anIter);
 215     if (!aRefAttr || !aRefAttr->isInitialized()) {
 216       myErrorMsg = SketchSolver_Error::NOT_INITIALIZED();
 217       return;
 218     }
 219
 220     myStorage->update(*anIter/*, myGroupID*/);
 221     EntityWrapperPtr anEntity = myStorage->entity(*anIter);
 222
 223     SketchSolver_EntityType aType = anEntity->type();
 224     if (aType == ENTITY_UNKNOWN)
 225       continue;
 226     else if (aType == ENTITY_POINT)
 227       theAttributes[aPtInd++] = anEntity; // the point is created
 228     else { // another entity (not a point) is created
 229       if (aEntInd < anInitNbOfAttr)
 230         theAttributes[aEntInd] = anEntity;
 231       else
 232         theAttributes.push_back(anEntity);
 233       aEntInd++;
 234     }
 235   }
 236 }
 237
 238 bool SketchSolver_Constraint::isUsed(FeaturePtr theFeature) const
 239 {
 240   const std::list<ConstraintWrapperPtr>& aCList = myStorage->constraint(myBaseConstraint);
 241   std::list<ConstraintWrapperPtr>::const_iterator aCIt = aCList.begin();
 242   for (; aCIt != aCList.end(); ++aCIt)
 243     if ((*aCIt)->isUsed(theFeature))
 244       return true;
 245
 246   std::list<AttributePtr> anAttrList = theFeature->data()->attributes(GeomDataAPI_Point2D::typeId());
 247   std::list<AttributePtr>::const_iterator anAttrIt = anAttrList.begin();
 248   for (; anAttrIt != anAttrList.end(); ++ anAttrIt)
 249     if (isUsed(*anAttrIt))
 250       return true;
 251
 252   return false;
 253 }
 254
 255 bool SketchSolver_Constraint::isUsed(AttributePtr theAttribute) const
 256 {
 257   AttributePtr anAttribute = theAttribute;
 258   AttributeRefAttrPtr aRefAttr =
 259       std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(anAttribute);
 260   if (aRefAttr) {
 261     if (aRefAttr->isObject())
 262       return isUsed(ModelAPI_Feature::feature(aRefAttr->object()));
 263     else
 264       anAttribute = aRefAttr->attr();
 265   }
 266
 267   const std::list<ConstraintWrapperPtr>& aCList = myStorage->constraint(myBaseConstraint);
 268   std::list<ConstraintWrapperPtr>::const_iterator aCIt = aCList.begin();
 269   for (; aCIt != aCList.end(); ++aCIt)
 270     if ((*aCIt)->isUsed(theAttribute))
 271       return true;
 272   return false;
 273 }