1 // Copyright (C) 2014-20xx CEA/DEN, EDF R&D
3 // File: SketchSolver_Group.cpp
4 // Created: 27 May 2014
5 // Author: Artem ZHIDKOV
7 #include "SketchSolver_Group.h"
9 #include <SketchSolver_Constraint.h>
10 #include <SketchSolver_ConstraintCoincidence.h>
11 #include <SketchSolver_ConstraintMulti.h>
12 #include <SketchSolver_Error.h>
13 #include <SketchSolver_Manager.h>
15 #include <Events_Error.h>
16 #include <Events_Loop.h>
17 #include <ModelAPI_AttributeString.h>
18 #include <ModelAPI_Events.h>
19 #include <ModelAPI_Session.h>
20 #include <ModelAPI_Validator.h>
22 #include <SketchPlugin_ConstraintAngle.h>
23 #include <SketchPlugin_ConstraintCoincidence.h>
24 #include <SketchPlugin_ConstraintDistance.h>
25 #include <SketchPlugin_ConstraintEqual.h>
26 #include <SketchPlugin_ConstraintHorizontal.h>
27 #include <SketchPlugin_ConstraintLength.h>
28 #include <SketchPlugin_ConstraintFillet.h>
29 #include <SketchPlugin_ConstraintMirror.h>
30 #include <SketchPlugin_ConstraintParallel.h>
31 #include <SketchPlugin_ConstraintPerpendicular.h>
32 #include <SketchPlugin_ConstraintRadius.h>
33 #include <SketchPlugin_ConstraintRigid.h>
34 #include <SketchPlugin_ConstraintTangent.h>
35 #include <SketchPlugin_ConstraintVertical.h>
36 #include <SketchPlugin_MultiRotation.h>
37 #include <SketchPlugin_MultiTranslation.h>
43 /// \brief This class is used to give unique index to the groups
47 /// \brief Return vacant index
48 static GroupID NEW_GROUP() { return ++myGroupIndex; }
49 /// \brief Removes the index
50 static void REMOVE_GROUP(const GroupID& theIndex) {
51 if (myGroupIndex == theIndex)
58 static GroupID myGroupIndex; ///< index of the group
61 GroupID GroupIndexer::myGroupIndex = GID_OUTOFGROUP;
64 static void sendMessage(const char* theMessageName)
66 std::shared_ptr<Events_Message> aMessage = std::shared_ptr<Events_Message>(
67 new Events_Message(Events_Loop::eventByName(theMessageName)));
68 Events_Loop::loop()->send(aMessage);
73 // ========================================================
74 // ========= SketchSolver_Group ===============
75 // ========================================================
77 SketchSolver_Group::SketchSolver_Group(
78 std::shared_ptr<ModelAPI_CompositeFeature> theWorkplane)
79 : myID(GroupIndexer::NEW_GROUP()),
82 // Initialize workplane
83 myWorkplaneID = EID_UNKNOWN;
84 addWorkplane(theWorkplane);
87 SketchSolver_Group::~SketchSolver_Group()
89 myConstraints.clear();
90 GroupIndexer::REMOVE_GROUP(myID);
93 // ============================================================================
94 // Function: isBaseWorkplane
95 // Class: SketchSolver_Group
96 // Purpose: verify the group is based on the given workplane
97 // ============================================================================
98 bool SketchSolver_Group::isBaseWorkplane(CompositeFeaturePtr theWorkplane) const
100 return theWorkplane == mySketch;
103 // ============================================================================
104 // Function: isInteract
105 // Class: SketchSolver_Group
106 // Purpose: verify are there any entities in the group used by given constraint
107 // ============================================================================
108 bool SketchSolver_Group::isInteract(FeaturePtr theFeature) const
110 // Empty group interacts with everything
113 // Check interaction with the storage
114 return myStorage->isInteract(theFeature);
117 // ============================================================================
118 // Function: changeConstraint
119 // Class: SketchSolver_Group
120 // Purpose: create/update the constraint in the group
121 // ============================================================================
122 bool SketchSolver_Group::changeConstraint(
123 std::shared_ptr<SketchPlugin_Constraint> theConstraint)
125 // There is no workplane yet, something wrong
126 if (myWorkplaneID == EID_UNKNOWN)
129 if (!theConstraint || !theConstraint->data())
132 if (!checkFeatureValidity(theConstraint))
135 BuilderPtr aBuilder = SketchSolver_Manager::instance()->builder();
137 bool isNewConstraint = myConstraints.find(theConstraint) == myConstraints.end();
138 if (isNewConstraint) {
139 // Add constraint to the current group
140 SolverConstraintPtr aConstraint = aBuilder->createConstraint(theConstraint);
143 aConstraint->process(myStorage, getId(), getWorkplaneId());
144 if (!aConstraint->error().empty()) {
145 if (aConstraint->error() == SketchSolver_Error::NOT_INITIALIZED())
146 return false; // some attribute are not initialized yet, don't show message
147 Events_Error::send(aConstraint->error(), this);
149 myConstraints[theConstraint] = aConstraint;
152 myConstraints[theConstraint]->update();
155 if (theConstraint->getKind() == SketchPlugin_ConstraintMirror::ID()) {
156 AttributeRefAttrPtr aRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
157 theConstraint->attribute(SketchPlugin_ConstraintMirror::ENTITY_A()));
158 if (aRefAttr && aRefAttr->isObject()) {
159 std::shared_ptr<SketchPlugin_Feature> aFeature =
160 std::dynamic_pointer_cast<SketchPlugin_Feature>(
161 ModelAPI_Feature::feature(aRefAttr->object()));
163 SolverConstraintPtr aConstraint = aBuilder->createFixedConstraint(aFeature);
165 aConstraint->process(myStorage, getId(), getWorkplaneId());
166 setTemporary(aConstraint);
175 void SketchSolver_Group::updateConstraints()
177 std::set<SolverConstraintPtr> aPostponed; // postponed constraints Multi-Rotation and Multi-Translation
179 ConstraintConstraintMap::iterator anIt = myConstraints.begin();
180 for (; anIt != myConstraints.end(); ++anIt) {
181 if (myChangedConstraints.find(anIt->first) == myChangedConstraints.end())
183 if (anIt->first->getKind() == SketchPlugin_MultiRotation::ID() ||
184 anIt->first->getKind() == SketchPlugin_MultiTranslation::ID())
185 aPostponed.insert(anIt->second);
187 anIt->second->update();
190 // Update postponed constraints
191 std::set<SolverConstraintPtr>::iterator aSCIter = aPostponed.begin();
192 for (; aSCIter != aPostponed.end(); ++aSCIter)
193 (*aSCIter)->update();
195 myChangedConstraints.clear();
198 bool SketchSolver_Group::updateFeature(FeaturePtr theFeature)
200 if (!checkFeatureValidity(theFeature))
202 myStorage->refresh(true);
203 return myStorage->update(theFeature);
206 void SketchSolver_Group::moveFeature(FeaturePtr theFeature)
208 BuilderPtr aBuilder = SketchSolver_Manager::instance()->builder();
210 // Firstly, revert changes in the fixed entities
211 myStorage->refresh(true);
213 // Secondly, search attributes of the feature in the list of the Multi constraints and update them
214 ConstraintConstraintMap::iterator aCIt = myConstraints.begin();
215 for (; aCIt != myConstraints.end(); ++aCIt) {
216 if ((aCIt->second->getType() == CONSTRAINT_MULTI_ROTATION ||
217 aCIt->second->getType() == CONSTRAINT_MULTI_TRANSLATION)
218 && aCIt->second->isUsed(theFeature))
219 std::dynamic_pointer_cast<SketchSolver_ConstraintMulti>(aCIt->second)->update(true);
222 // Then, create temporary rigid constraint
223 SolverConstraintPtr aConstraint = aBuilder->createMovementConstraint(theFeature);
226 aConstraint->process(myStorage, getId(), getWorkplaneId());
227 if (aConstraint->error().empty())
228 setTemporary(aConstraint);
231 // ============================================================================
232 // Function: addWorkplane
233 // Class: SketchSolver_Group
234 // Purpose: create workplane for the group
235 // ============================================================================
236 bool SketchSolver_Group::addWorkplane(CompositeFeaturePtr theSketch)
238 if (myWorkplaneID != EID_UNKNOWN || theSketch->getKind() != SketchPlugin_Sketch::ID())
239 return false; // the workplane already exists or the function parameter is not Sketch
241 mySketch = theSketch;
242 if (!updateWorkplane()) {
243 mySketch = CompositeFeaturePtr();
249 // ============================================================================
250 // Function: updateWorkplane
251 // Class: SketchSolver_Group
252 // Purpose: update parameters of workplane
253 // ============================================================================
254 bool SketchSolver_Group::updateWorkplane()
256 BuilderPtr aBuilder = SketchSolver_Manager::instance()->builder();
257 if (!myStorage) // Create storage if not exists
258 myStorage = aBuilder->createStorage(getId());
260 // sketch should be unchanged, set it out of current group
261 bool isUpdated = myStorage->update(FeaturePtr(mySketch), GID_OUTOFGROUP);
263 EntityWrapperPtr anEntity = myStorage->entity(FeaturePtr(mySketch));
264 myWorkplaneID = anEntity->id();
269 // ============================================================================
270 // Function: resolveConstraints
271 // Class: SketchSolver_Group
272 // Purpose: solve the set of constraints for the current group
273 // ============================================================================
274 bool SketchSolver_Group::resolveConstraints()
276 if (!myChangedConstraints.empty())
279 bool aResolved = false;
280 bool isGroupEmpty = isEmpty();
281 if (myStorage->isNeedToResolve() && !isGroupEmpty) {
283 mySketchSolver = SketchSolver_Manager::instance()->builder()->createSolver();
285 mySketchSolver->setGroup(myID);
286 mySketchSolver->calculateFailedConstraints(false);
287 myStorage->initializeSolver(mySketchSolver);
289 SketchSolver_SolveStatus aResult = STATUS_OK;
291 if (myStorage->hasDuplicatedConstraint())
292 aResult = STATUS_INCONSISTENT;
294 // To avoid overconstraint situation, we will remove temporary constraints one-by-one
295 // and try to find the case without overconstraint
296 bool isLastChance = false;
297 size_t aNbTemp = myStorage->nbTemporary();
299 aResult = mySketchSolver->solve();
300 if (aResult == STATUS_OK || aResult == STATUS_EMPTYSET || isLastChance)
303 // try to update parameters and resolve once again
304 ConstraintConstraintMap::iterator aConstrIt = myConstraints.begin();
305 for (; aConstrIt != myConstraints.end(); ++aConstrIt)
306 aConstrIt->second->update();
309 aNbTemp = myStorage->removeTemporary();
310 mySketchSolver->calculateFailedConstraints(true); // something failed => need to find it
311 myStorage->initializeSolver(mySketchSolver);
315 // Events_Error::send(SketchSolver_Error::SOLVESPACE_CRASH(), this);
316 getWorkplane()->string(SketchPlugin_Sketch::SOLVER_ERROR())->setValue(SketchSolver_Error::SOLVESPACE_CRASH());
318 // the error message should be changed before sending the message
319 sendMessage(EVENT_SOLVER_FAILED);
320 myPrevSolved = false;
324 if (aResult == STATUS_OK || aResult == STATUS_EMPTYSET) { // solution succeeded, store results into correspondent attributes
325 myStorage->refresh();
327 getWorkplane()->string(SketchPlugin_Sketch::SOLVER_ERROR())->setValue("");
328 // the error message should be changed before sending the message
329 sendMessage(EVENT_SOLVER_REPAIRED);
332 } else if (!myConstraints.empty()) {
333 // Events_Error::send(SketchSolver_Error::CONSTRAINTS(), this);
334 getWorkplane()->string(SketchPlugin_Sketch::SOLVER_ERROR())->setValue(SketchSolver_Error::CONSTRAINTS());
336 // the error message should be changed before sending the message
337 sendMessage(EVENT_SOLVER_FAILED);
338 myPrevSolved = false;
343 } else if (!isGroupEmpty) {
344 // Check there are constraints Fixed. If they exist, update parameters by stored values
345 ConstraintConstraintMap::iterator aCIt = myConstraints.begin();
346 for (; aCIt != myConstraints.end(); ++aCIt)
347 if (aCIt->first->getKind() == SketchPlugin_ConstraintRigid::ID()) {
351 if (aCIt != myConstraints.end())
352 myStorage->refresh();
354 removeTemporaryConstraints();
355 myStorage->setNeedToResolve(false);
359 // ============================================================================
360 // Function: mergeGroups
361 // Class: SketchSolver_Group
362 // Purpose: append specified group to the current group
363 // ============================================================================
364 void SketchSolver_Group::mergeGroups(const SketchSolver_Group& theGroup)
366 // If specified group is empty, no need to merge
367 if (theGroup.isEmpty())
370 std::set<ObjectPtr> aConstraints;
371 ConstraintConstraintMap::const_iterator aConstrIter = theGroup.myConstraints.begin();
372 for (; aConstrIter != theGroup.myConstraints.end(); aConstrIter++)
373 aConstraints.insert(aConstrIter->first);
375 std::list<FeaturePtr> aSortedConstraints = selectApplicableFeatures(aConstraints);
376 std::list<FeaturePtr>::iterator aSCIter = aSortedConstraints.begin();
377 for (; aSCIter != aSortedConstraints.end(); ++aSCIter) {
378 ConstraintPtr aConstr = std::dynamic_pointer_cast<SketchPlugin_Constraint>(*aSCIter);
381 changeConstraint(aConstr);
385 // ============================================================================
386 // Function: splitGroup
387 // Class: SketchSolver_Group
388 // Purpose: divide the group into several subgroups
389 // ============================================================================
390 void SketchSolver_Group::splitGroup(std::list<SketchSolver_Group*>& theCuts)
392 // New storage will be used in trimmed way to store the list of constraint interacted together.
393 StoragePtr aNewStorage = SketchSolver_Manager::instance()->builder()->createStorage(getId());
394 std::list<ConstraintWrapperPtr> aDummyVec; // empty vector to avoid creation of solver's constraints
396 // Obtain constraints, which should be separated
397 std::list<ConstraintPtr> anUnusedConstraints;
398 ConstraintConstraintMap::iterator aCIter = myConstraints.begin();
399 for ( ; aCIter != myConstraints.end(); aCIter++) {
400 if (aNewStorage->isInteract(FeaturePtr(aCIter->first)))
401 aNewStorage->addConstraint(aCIter->first, aDummyVec);
403 anUnusedConstraints.push_back(aCIter->first);
406 // Check the unused constraints once again, because they may become interacted with new storage since adding constraints
407 std::list<ConstraintPtr>::iterator aUnuseIt = anUnusedConstraints.begin();
408 while (aUnuseIt != anUnusedConstraints.end()) {
409 if (aNewStorage->isInteract(FeaturePtr(*aUnuseIt))) {
410 aNewStorage->addConstraint(*aUnuseIt, aDummyVec);
411 anUnusedConstraints.erase(aUnuseIt);
412 aUnuseIt = anUnusedConstraints.begin();
418 std::list<SketchSolver_Group*>::iterator aCutsIter;
419 aUnuseIt = anUnusedConstraints.begin();
420 for ( ; aUnuseIt != anUnusedConstraints.end(); ++aUnuseIt) {
421 // Remove unused constraints
422 removeConstraint(*aUnuseIt);
423 // Try to append constraint to already existent group
424 for (aCutsIter = theCuts.begin(); aCutsIter != theCuts.end(); ++aCutsIter)
425 if ((*aCutsIter)->isInteract(*aUnuseIt)) {
426 (*aCutsIter)->changeConstraint(*aUnuseIt);
429 if (aCutsIter == theCuts.end()) {
431 SketchSolver_Group* aGroup = new SketchSolver_Group(mySketch);
432 aGroup->changeConstraint(*aUnuseIt);
433 theCuts.push_back(aGroup);
435 // Find other groups interacting with constraint
436 std::list<SketchSolver_Group*>::iterator aBaseGroupIt = aCutsIter;
437 for (++aCutsIter; aCutsIter != theCuts.end(); ++aCutsIter)
438 if ((*aCutsIter)->isInteract(*aUnuseIt)) {
439 (*aBaseGroupIt)->mergeGroups(**aCutsIter);
440 std::list<SketchSolver_Group*>::iterator aRemoveIt = aCutsIter--;
441 theCuts.erase(aRemoveIt);
447 // ============================================================================
448 // Function: isConsistent
449 // Class: SketchSolver_Group
450 // Purpose: search removed entities and constraints
451 // ============================================================================
452 bool SketchSolver_Group::isConsistent()
454 if (isEmpty()) // no one constraint is initialized yet
457 // Check the features and constraint is the storage are valid
458 bool aResult = myStorage->isConsistent();
460 // additional check of consistency of the Fixed constraint,
461 // because they are not added to the storage
462 ConstraintConstraintMap::iterator aCIter = myConstraints.begin();
463 for (; aCIter != myConstraints.end(); ++aCIter)
464 if (aCIter->first->getKind() == SketchPlugin_ConstraintRigid::ID() &&
465 (!aCIter->first->data() || !aCIter->first->data()->isValid())) {
471 // remove invalid constraints
472 std::set<ConstraintPtr> anInvalidConstraints;
473 ConstraintConstraintMap::iterator aCIter = myConstraints.begin();
474 for (; aCIter != myConstraints.end(); ++aCIter) {
475 if (!aCIter->first->data() || !aCIter->first->data()->isValid())
476 anInvalidConstraints.insert(aCIter->first);
478 std::set<ConstraintPtr>::const_iterator aRemoveIt = anInvalidConstraints.begin();
479 for (; aRemoveIt != anInvalidConstraints.end(); ++aRemoveIt)
480 removeConstraint(*aRemoveIt);
481 // remove invalid features
482 myStorage->removeInvalidEntities();
487 // ============================================================================
488 // Function: removeTemporaryConstraints
489 // Class: SketchSolver_Group
490 // Purpose: remove all transient SLVS_C_WHERE_DRAGGED constraints after
491 // resolving the set of constraints
492 // ============================================================================
493 void SketchSolver_Group::removeTemporaryConstraints()
495 std::set<SolverConstraintPtr>::iterator aTmpIt = myTempConstraints.begin();
496 for (; aTmpIt != myTempConstraints.end(); ++aTmpIt)
499 size_t aNbTemp = myStorage->nbTemporary();
501 myStorage->removeTemporary(aNbTemp);
503 if (!myTempConstraints.empty())
504 myStorage->verifyFixed();
505 myStorage->setNeedToResolve(false);
506 myTempConstraints.clear();
509 // ============================================================================
510 // Function: removeConstraint
511 // Class: SketchSolver_Group
512 // Purpose: remove constraint and all unused entities
513 // ============================================================================
514 void SketchSolver_Group::removeConstraint(ConstraintPtr theConstraint)
516 bool isFullyRemoved = true;
517 ConstraintConstraintMap::iterator aCIter = myConstraints.begin();
518 for (; aCIter != myConstraints.end(); aCIter++)
519 if (aCIter->first == theConstraint) {
520 if (!aCIter->second->remove()) // the constraint is not fully removed
521 isFullyRemoved = false;
524 if (aCIter == myConstraints.end())
528 myConstraints.erase(aCIter);
529 else if (aCIter != myConstraints.end() &&
530 aCIter->first->getKind() == SketchPlugin_ConstraintCoincidence::ID()) {
531 // Update multicoincidence
532 std::list<ConstraintPtr> aMultiCoinc;
533 SolverConstraintPtr aCoincidence = aCIter->second;
534 while (aCIter != myConstraints.end()) {
535 if (aCIter->second != aCoincidence) {
539 if (aCIter->first != theConstraint)
540 aMultiCoinc.push_back(aCIter->first);
541 aCIter->second->remove();
542 ConstraintConstraintMap::iterator aRemoveIt = aCIter++;
543 myConstraints.erase(aRemoveIt);
546 std::list<ConstraintPtr>::iterator anIt = aMultiCoinc.begin();
547 for (; anIt != aMultiCoinc.end(); ++anIt)
548 changeConstraint(*anIt);
552 // ============================================================================
553 // Function: isComplexConstraint
554 // Class: SketchSolver_Group
555 // Purpose: verifies the constraint is complex, i.e. it needs another constraints to be created before
556 // ============================================================================
557 bool SketchSolver_Group::isComplexConstraint(FeaturePtr theConstraint)
559 return theConstraint->getKind() == SketchPlugin_ConstraintFillet::ID() ||
560 theConstraint->getKind() == SketchPlugin_ConstraintMirror::ID() ||
561 theConstraint->getKind() == SketchPlugin_ConstraintTangent::ID();
564 // ============================================================================
565 // Function: setTemporary
566 // Class: SketchSolver_Group
567 // Purpose: append given constraint to the group of temporary constraints
568 // ============================================================================
569 void SketchSolver_Group::setTemporary(SolverConstraintPtr theConstraint)
571 theConstraint->makeTemporary();
572 myTempConstraints.insert(theConstraint);
576 // ============================================================================
577 // Function: checkFeatureValidity
578 // Class: SketchSolver_Group
579 // Purpose: verifies is the feature valid
580 // ============================================================================
581 bool SketchSolver_Group::checkFeatureValidity(FeaturePtr theFeature)
583 if (!theFeature || !theFeature->data()->isValid())
586 SessionPtr aMgr = ModelAPI_Session::get();
587 ModelAPI_ValidatorsFactory* aFactory = aMgr->validators();
588 return aFactory->validate(theFeature);
594 // =========== Auxiliary functions ========================================
595 static double featureToVal(FeaturePtr theFeature)
597 if (theFeature->getKind() == SketchPlugin_Sketch::ID())
598 return 0.0; // sketch
599 ConstraintPtr aConstraint = std::dynamic_pointer_cast<SketchPlugin_Constraint>(theFeature);
601 return 1.0; // features (arc, circle, line, point)
603 const std::string& anID = aConstraint->getKind();
604 if (anID == SketchPlugin_ConstraintCoincidence::ID()) {
605 AttributeRefAttrPtr anAttrA = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
606 aConstraint->attribute(SketchPlugin_Constraint::ENTITY_A()));
607 AttributeRefAttrPtr anAttrB = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
608 aConstraint->attribute(SketchPlugin_Constraint::ENTITY_B()));
609 if (anAttrA && anAttrB && (anAttrA->isObject() || anAttrB->isObject()))
610 return 2.0; // point-on-line and point-on-circle should go before points coincidence constraint
613 if (anID == SketchPlugin_ConstraintDistance::ID() ||
614 anID == SketchPlugin_ConstraintLength::ID() ||
615 anID == SketchPlugin_ConstraintRadius::ID())
617 if (anID == SketchPlugin_ConstraintAngle::ID())
619 if (anID == SketchPlugin_ConstraintHorizontal::ID() ||
620 anID == SketchPlugin_ConstraintVertical::ID() ||
621 anID == SketchPlugin_ConstraintParallel::ID() ||
622 anID == SketchPlugin_ConstraintPerpendicular::ID())
624 if (anID == SketchPlugin_ConstraintEqual::ID())
626 if (anID == SketchPlugin_ConstraintTangent::ID() ||
627 anID == SketchPlugin_ConstraintMirror::ID())
629 if (anID == SketchPlugin_ConstraintRigid::ID())
631 if (anID == SketchPlugin_MultiRotation::ID() ||
632 anID == SketchPlugin_MultiTranslation::ID())
635 // all other constraints are placed between Equal and Tangent constraints
639 static bool isLess(FeaturePtr theFeature1, FeaturePtr theFeature2)
641 return featureToVal(theFeature1) < featureToVal(theFeature2);
644 std::list<FeaturePtr> SketchSolver_Group::selectApplicableFeatures(const std::set<ObjectPtr>& theObjects)
646 std::list<FeaturePtr> aResult;
647 std::list<FeaturePtr>::iterator aResIt;
649 std::set<ObjectPtr>::const_iterator anObjIter = theObjects.begin();
650 for (; anObjIter != theObjects.end(); ++anObjIter) {
651 // Operate sketch itself and SketchPlugin features only.
652 // Also, the Fillet need to be skipped, because there are several separated constraints composing it.
653 FeaturePtr aFeature = std::dynamic_pointer_cast<ModelAPI_Feature>(*anObjIter);
656 std::shared_ptr<SketchPlugin_Feature> aSketchFeature =
657 std::dynamic_pointer_cast<SketchPlugin_Feature>(aFeature);
658 if ((aFeature->getKind() != SketchPlugin_Sketch::ID() && !aSketchFeature) ||
659 aFeature->getKind() == SketchPlugin_ConstraintFillet::ID())
662 // Find the place where to insert a feature
663 for (aResIt = aResult.begin(); aResIt != aResult.end(); ++aResIt)
664 if (isLess(aFeature, *aResIt))
666 aResult.insert(aResIt, aFeature);