1 // Copyright (C) 2014-20xx CEA/DEN, EDF R&D
3 // File: SketchSolver_Manager.cpp
4 // Created: 08 May 2014
5 // Author: Artem ZHIDKOV
7 #include "SketchSolver_Manager.h"
8 #include "SketchSolver_Error.h"
10 #include <Events_Loop.h>
11 #include <ModelAPI_AttributeDouble.h>
12 #include <ModelAPI_AttributeRefList.h>
13 #include <ModelAPI_Data.h>
14 #include <ModelAPI_Events.h>
15 #include <ModelAPI_Object.h>
16 #include <ModelAPI_ResultConstruction.h>
17 #include <ModelAPI_Attribute.h>
18 #include <ModelAPI_AttributeInteger.h>
19 #include <ModelAPI_AttributeString.h>
21 #include <SketchPlugin_Constraint.h>
22 #include <SketchPlugin_ConstraintAngle.h>
23 #include <SketchPlugin_ConstraintCoincidence.h>
24 #include <SketchPlugin_ConstraintCollinear.h>
25 #include <SketchPlugin_ConstraintDistance.h>
26 #include <SketchPlugin_ConstraintEqual.h>
27 #include <SketchPlugin_ConstraintHorizontal.h>
28 #include <SketchPlugin_ConstraintLength.h>
29 #include <SketchPlugin_ConstraintMiddle.h>
30 #include <SketchPlugin_ConstraintMirror.h>
31 #include <SketchPlugin_ConstraintParallel.h>
32 #include <SketchPlugin_ConstraintPerpendicular.h>
33 #include <SketchPlugin_ConstraintRadius.h>
34 #include <SketchPlugin_ConstraintRigid.h>
35 #include <SketchPlugin_ConstraintTangent.h>
36 #include <SketchPlugin_ConstraintVertical.h>
37 #include <SketchPlugin_MultiRotation.h>
38 #include <SketchPlugin_MultiTranslation.h>
40 #include <SketchPlugin_Arc.h>
41 #include <SketchPlugin_Circle.h>
42 #include <SketchPlugin_Line.h>
43 #include <SketchPlugin_Point.h>
44 #include <SketchPlugin_Sketch.h>
45 #include <SketchPlugin_Feature.h>
53 static const Events_ID anUpdateEvent = Events_Loop::eventByName(EVENT_OBJECT_UPDATED);
55 // Initialization of constraint manager self pointer
56 SketchSolver_Manager* SketchSolver_Manager::mySelf = 0;
58 /// Global constraint manager object
59 SketchSolver_Manager* myManager = SketchSolver_Manager::instance();
62 // ========================================================
63 // ========= SketchSolver_Manager ===============
64 // ========================================================
65 SketchSolver_Manager* SketchSolver_Manager::instance()
68 mySelf = new SketchSolver_Manager();
72 SketchSolver_Manager::SketchSolver_Manager()
77 // Register in event loop
78 Events_Loop::loop()->registerListener(this, Events_Loop::eventByName(EVENT_OBJECT_CREATED));
79 Events_Loop::loop()->registerListener(this, Events_Loop::eventByName(EVENT_OBJECT_UPDATED));
80 Events_Loop::loop()->registerListener(this, Events_Loop::eventByName(EVENT_OBJECT_DELETED));
81 Events_Loop::loop()->registerListener(this, Events_Loop::eventByName(EVENT_OBJECT_MOVED));
83 Events_Loop::loop()->registerListener(this, Events_Loop::eventByName(EVENT_SOLVER_FAILED));
84 Events_Loop::loop()->registerListener(this, Events_Loop::eventByName(EVENT_SOLVER_REPAIRED));
87 SketchSolver_Manager::~SketchSolver_Manager()
92 void SketchSolver_Manager::setBuilder(BuilderPtr theBuilder)
94 myBuilder = theBuilder;
97 BuilderPtr SketchSolver_Manager::builder()
102 // ============================================================================
103 // Function: processEvent
104 // Purpose: listen the event loop and process the message
105 // ============================================================================
106 void SketchSolver_Manager::processEvent(
107 const std::shared_ptr<Events_Message>& theMessage)
109 checkConflictingConstraints(theMessage);
114 // Shows that the message has at least one feature applicable for solver
115 bool hasProperFeature = false;
117 if (theMessage->eventID() == Events_Loop::loop()->eventByName(EVENT_OBJECT_CREATED)
118 || theMessage->eventID() == Events_Loop::loop()->eventByName(EVENT_OBJECT_UPDATED)
119 || theMessage->eventID() == Events_Loop::loop()->eventByName(EVENT_OBJECT_MOVED)) {
120 std::shared_ptr<ModelAPI_ObjectUpdatedMessage> anUpdateMsg =
121 std::dynamic_pointer_cast<ModelAPI_ObjectUpdatedMessage>(theMessage);
122 std::set<ObjectPtr> aFeatures = anUpdateMsg->objects();
124 bool isUpdateFlushed = stopSendUpdate();
126 bool isMovedEvt = theMessage->eventID()
127 == Events_Loop::loop()->eventByName(EVENT_OBJECT_MOVED);
129 std::set<ObjectPtr>::iterator aFeatIter;
130 for (aFeatIter = aFeatures.begin(); aFeatIter != aFeatures.end(); aFeatIter++) {
131 std::shared_ptr<SketchPlugin_Feature> aSFeature =
132 std::dynamic_pointer_cast<SketchPlugin_Feature>(*aFeatIter);
134 moveEntity(aSFeature);
135 hasProperFeature = true;
138 if (!hasProperFeature) // in this iteration it will compute nothing, so, no problem with recursion
139 // it is important that solver flushes signal updated after processing move signal as there is
140 // optimization that relies on this update, might be found by key "optimization"
141 myIsComputed = false;
143 std::list<FeaturePtr> aSketchFeatures = SketchSolver_Group::selectApplicableFeatures(aFeatures);
144 std::list<FeaturePtr>::iterator aFeatIter = aSketchFeatures.begin();
145 for (; aFeatIter != aSketchFeatures.end(); ++aFeatIter) {
146 if ((*aFeatIter)->getKind() == SketchPlugin_Sketch::ID()) {
147 std::shared_ptr<ModelAPI_CompositeFeature> aSketch =
148 std::dynamic_pointer_cast<ModelAPI_CompositeFeature>(*aFeatIter);
149 hasProperFeature = changeWorkplane(aSketch) || hasProperFeature;
152 std::shared_ptr<SketchPlugin_Feature> aFeature =
153 std::dynamic_pointer_cast<SketchPlugin_Feature>(*aFeatIter);
156 hasProperFeature = changeFeature(aFeature) || hasProperFeature;
160 bool needToUpdate = false;
161 // Solve the set of constraints
162 if (hasProperFeature)
163 needToUpdate = resolveConstraints();
165 // Features may be updated => now send events, but for all changed at once
168 // send update for movement in any case
169 if (needToUpdate || isMovedEvt)
170 Events_Loop::loop()->flush(anUpdateEvent);
172 } else if (theMessage->eventID() == Events_Loop::loop()->eventByName(EVENT_OBJECT_DELETED)) {
173 std::shared_ptr<ModelAPI_ObjectDeletedMessage> aDeleteMsg =
174 std::dynamic_pointer_cast<ModelAPI_ObjectDeletedMessage>(theMessage);
175 const std::set<std::string>& aFeatureGroups = aDeleteMsg->groups();
177 // Find SketchPlugin_Sketch::ID() in groups. The constraint groups should be updated when an object removed from Sketch
178 std::set<std::string>::const_iterator aFGrIter;
179 for (aFGrIter = aFeatureGroups.begin(); aFGrIter != aFeatureGroups.end(); aFGrIter++)
180 if (aFGrIter->compare(ModelAPI_ResultConstruction::group()) == 0 ||
181 aFGrIter->compare(ModelAPI_Feature::group()) == 0)
184 if (aFGrIter != aFeatureGroups.end()) {
185 hasProperFeature = true;
186 std::list<SketchSolver_Group*> aGroupsToResolve;
187 std::list<SketchSolver_Group*>::iterator aGroupIter = myGroups.begin();
188 std::list<SketchSolver_Group*> aSeparatedGroups;
189 while (aGroupIter != myGroups.end()) {
190 if (!(*aGroupIter)->isWorkplaneValid()) { // the group should be removed
192 std::list<SketchSolver_Group*>::iterator aRemoveIt = aGroupIter++;
193 myGroups.erase(aRemoveIt);
196 if (!(*aGroupIter)->isConsistent()) { // some constraints were removed, try to split the group
197 (*aGroupIter)->splitGroup(aSeparatedGroups);
198 //if (!(*aGroupIter)->getWorkplane()->string(
199 // SketchPlugin_Sketch::SOLVER_ERROR())->value().empty())
200 aGroupsToResolve.push_back(*aGroupIter);
204 if (aSeparatedGroups.size() > 0) {
205 myGroups.insert(myGroups.end(), aSeparatedGroups.begin(), aSeparatedGroups.end());
206 aGroupsToResolve.insert(aGroupsToResolve.end(),
207 aSeparatedGroups.begin(), aSeparatedGroups.end());
210 if (!aGroupsToResolve.empty())
211 resolveConstraints(aGroupsToResolve);
215 if (hasProperFeature)
217 myIsComputed = false;
220 void SketchSolver_Manager::checkConflictingConstraints(const std::shared_ptr<Events_Message>& theMessage)
222 if (theMessage->eventID() == Events_Loop::loop()->eventByName(EVENT_SOLVER_REPAIRED)) {
223 std::shared_ptr<ModelAPI_SolverFailedMessage> aMessage =
224 std::dynamic_pointer_cast<ModelAPI_SolverFailedMessage>(theMessage);
225 std::set<ObjectPtr> aSentObjs = aMessage->objects();
226 if (!aSentObjs.empty()) {
227 // Obtain sketch where the constraints are placed.
228 // It is enough to check only one constraint.
229 CompositeFeaturePtr aSketch;
230 FeaturePtr aConstraint = ModelAPI_Feature::feature(*aSentObjs.begin());
231 std::list<SketchSolver_Group*>::const_iterator aGrIt = myGroups.begin();
232 for (; aGrIt != myGroups.end(); ++aGrIt)
233 if ((*aGrIt)->isInteract(aConstraint)) {
234 aSketch = (*aGrIt)->getWorkplane();
238 // Search failed groups built on the same sketch
240 for (aGrIt = myGroups.begin(); aGrIt != myGroups.end(); ++aGrIt) {
241 SketchSolver_Group* aGroup = *aGrIt;
242 if (aGroup->isBaseWorkplane(aSketch) && aGroup->isFailed() &&
243 !aGroup->isInteract(aConstraint)) {
244 // reset error message on the sketch
245 aGroup->getWorkplane()->string(SketchPlugin_Sketch::SOLVER_ERROR())->setValue(
246 SketchSolver_Error::CONSTRAINTS());
255 // ============================================================================
256 // Function: changeWorkplane
257 // Purpose: update workplane by given parameters of the sketch
258 // ============================================================================
259 bool SketchSolver_Manager::changeWorkplane(CompositeFeaturePtr theSketch)
261 bool aResult = true; // changed when a workplane wrongly updated
262 bool isUpdated = false;
263 // Try to update specified workplane in all groups
264 std::list<SketchSolver_Group*>::iterator aGroupIter;
265 for (aGroupIter = myGroups.begin(); aGroupIter != myGroups.end(); aGroupIter++)
266 if ((*aGroupIter)->isBaseWorkplane(theSketch)) {
270 // If the workplane is not updated, so this is a new workplane
272 SketchSolver_Group* aNewGroup = new SketchSolver_Group(theSketch);
273 // Verify that the group is created successfully
274 if (!aNewGroup->isBaseWorkplane(theSketch) || !aNewGroup->isWorkplaneValid()) {
278 myGroups.push_back(aNewGroup);
283 // ============================================================================
284 // Function: changeConstraintOrEntity
285 // Purpose: create/update the constraint or the feature and place it into appropriate group
286 // ============================================================================
287 bool SketchSolver_Manager::changeFeature(std::shared_ptr<SketchPlugin_Feature> theFeature)
289 // Search the groups which this feature touches
290 std::set<GroupID> aGroups;
291 findGroups(theFeature, aGroups);
293 std::shared_ptr<SketchPlugin_Constraint> aConstraint =
294 std::dynamic_pointer_cast<SketchPlugin_Constraint>(theFeature);
296 // Process the groups list
297 if (aGroups.size() == 0) {
298 // There are no groups applicable for this constraint => create new one
299 // The group will be created only for constraints, not for features
300 if (!aConstraint) return false;
301 std::shared_ptr<ModelAPI_CompositeFeature> aWP = findWorkplane(aConstraint);
304 SketchSolver_Group* aGroup = new SketchSolver_Group(aWP);
305 if (!aGroup->changeConstraint(aConstraint)) {
309 myGroups.push_back(aGroup);
311 } else if (aGroups.size() == 1) { // Only one group => add feature into it
312 GroupID aGroupId = *(aGroups.begin());
313 std::list<SketchSolver_Group*>::iterator aGroupIter;
314 for (aGroupIter = myGroups.begin(); aGroupIter != myGroups.end(); aGroupIter++)
315 if ((*aGroupIter)->getId() == aGroupId) {
316 // If the group is empty, the feature is not added (the constraint only)
317 if (!aConstraint && !(*aGroupIter)->isEmpty())
318 return (*aGroupIter)->updateFeature(theFeature);
319 return (*aGroupIter)->changeConstraint(aConstraint);
321 } else if (aGroups.size() > 1) { // Several groups applicable for this feature => need to merge them
322 std::set<GroupID>::const_iterator aGroupsIter = aGroups.begin();
324 // Search first group
325 std::list<SketchSolver_Group*>::iterator aFirstGroupIter;
326 for (aFirstGroupIter = myGroups.begin(); aFirstGroupIter != myGroups.end(); aFirstGroupIter++)
327 if ((*aFirstGroupIter)->getId() == *aGroupsIter)
329 if (aFirstGroupIter == myGroups.end())
332 // Append other groups to the first one
333 std::list<SketchSolver_Group*>::iterator anOtherGroupIter = aFirstGroupIter;
335 for (aGroupsIter++; aGroupsIter != aGroups.end(); aGroupsIter++) {
336 for (; anOtherGroupIter != myGroups.end(); anOtherGroupIter++)
337 if ((*anOtherGroupIter)->getId() == *aGroupsIter)
339 if (anOtherGroupIter == myGroups.end()) { // Group disappears
340 anOtherGroupIter = aFirstGroupIter;
345 (*aFirstGroupIter)->mergeGroups(**anOtherGroupIter);
346 std::list<SketchSolver_Group*>::iterator aRemoveIt = anOtherGroupIter++;
348 myGroups.erase(aRemoveIt);
352 (*aFirstGroupIter)->changeConstraint(aConstraint);
354 (*aFirstGroupIter)->updateFeature(theFeature);
355 // groups are merged => need to resolve them
359 // Something goes wrong
363 // ============================================================================
364 // Function: moveEntity
365 // Purpose: update element moved on the sketch, which is used by constraints
366 // ============================================================================
367 void SketchSolver_Manager::moveEntity(std::shared_ptr<SketchPlugin_Feature> theFeature)
369 bool isMoved = false;
370 std::list<SketchSolver_Group*>::iterator aGroupIt = myGroups.begin();
371 for (; aGroupIt != myGroups.end(); aGroupIt++)
372 if (!(*aGroupIt)->isEmpty() && (*aGroupIt)->isInteract(theFeature)) {
373 (*aGroupIt)->moveFeature(theFeature);
377 if (!isMoved && theFeature->getKind() == SketchPlugin_Arc::ID()) {
378 // Workaround to move arc.
379 // If the arc has not been constrained, we will push it into empty group and apply movement.
380 for (aGroupIt = myGroups.begin(); aGroupIt != myGroups.end(); aGroupIt++)
381 if ((*aGroupIt)->isEmpty())
382 (*aGroupIt)->moveFeature(theFeature);
386 // ============================================================================
387 // Function: findGroups
388 // Purpose: search groups of entities interacting with given feature
389 // ============================================================================
390 void SketchSolver_Manager::findGroups(
391 std::shared_ptr<SketchPlugin_Feature> theFeature,
392 std::set<GroupID>& theGroupIDs) const
394 std::shared_ptr<ModelAPI_CompositeFeature> aWP = findWorkplane(theFeature);
396 SketchSolver_Group* anEmptyGroup = 0; // appropriate empty group for specified constraint
397 std::list<SketchSolver_Group*>::const_iterator aGroupIter;
398 for (aGroupIter = myGroups.begin(); aGroupIter != myGroups.end(); aGroupIter++)
399 if (aWP == (*aGroupIter)->getWorkplane() && (*aGroupIter)->isInteract(theFeature)) {
400 if (!(*aGroupIter)->isEmpty())
401 theGroupIDs.insert((*aGroupIter)->getId());
402 else if (!anEmptyGroup)
403 anEmptyGroup = *aGroupIter;
406 // When only empty group is found, use it
407 if (anEmptyGroup && theGroupIDs.empty())
408 theGroupIDs.insert(anEmptyGroup->getId());
411 // ============================================================================
412 // Function: findWorkplane
413 // Purpose: search workplane containing given feature
414 // ============================================================================
415 std::shared_ptr<ModelAPI_CompositeFeature> SketchSolver_Manager
416 ::findWorkplane(std::shared_ptr<SketchPlugin_Feature> theFeature) const
418 // Already verified workplanes
419 std::set<std::shared_ptr<ModelAPI_CompositeFeature> > aVerified;
421 std::list<SketchSolver_Group*>::const_iterator aGroupIter;
422 for (aGroupIter = myGroups.begin(); aGroupIter != myGroups.end(); aGroupIter++) {
423 std::shared_ptr<ModelAPI_CompositeFeature> aWP = (*aGroupIter)->getWorkplane();
424 if (aVerified.find(aWP) != aVerified.end())
427 DataPtr aData = aWP->data();
428 if (aData->isValid()) {
429 std::shared_ptr<ModelAPI_AttributeRefList> aWPFeatures = std::dynamic_pointer_cast<
430 ModelAPI_AttributeRefList>(aData->attribute(SketchPlugin_Sketch::FEATURES_ID()));
431 std::list<ObjectPtr> aFeaturesList = aWPFeatures->list();
432 std::list<ObjectPtr>::const_iterator anIter;
433 for (anIter = aFeaturesList.begin(); anIter != aFeaturesList.end(); anIter++)
434 if (*anIter == theFeature)
435 return aWP; // workplane is found
437 aVerified.insert(aWP);
440 return std::shared_ptr<ModelAPI_CompositeFeature>();
443 // ============================================================================
444 // Function: resolveConstraints
445 // Purpose: change entities according to available constraints
446 // ============================================================================
447 bool SketchSolver_Manager::resolveConstraints(const std::list<SketchSolver_Group*>& theGroups)
449 bool needToUpdate = false;
450 const std::list<SketchSolver_Group*>& aGroupsToResolve = theGroups.empty() ? myGroups : theGroups;
451 std::list<SketchSolver_Group*>::const_iterator aGroupIter = aGroupsToResolve.begin();
452 for (; aGroupIter != aGroupsToResolve.end(); aGroupIter++)
453 if ((*aGroupIter)->resolveConstraints())
458 // ============================================================================
459 // Function: degreesOfFreedom
460 // Purpose: calculate DoFs for each sketch
461 // ============================================================================
462 void SketchSolver_Manager::degreesOfFreedom()
464 static std::map<std::string, int> aDoFDelta; // indicates how many DoF adds or decreases a feature
465 static bool isNeedInit = true;
467 aDoFDelta[SketchPlugin_Point::ID()] = 2;
468 aDoFDelta[SketchPlugin_Line::ID()] = 4;
469 aDoFDelta[SketchPlugin_Circle::ID()] = 3;
470 aDoFDelta[SketchPlugin_Arc::ID()] = 5;
472 aDoFDelta[SketchPlugin_ConstraintAngle::ID()] = -1;
473 aDoFDelta[SketchPlugin_ConstraintCollinear::ID()] = -1;
474 aDoFDelta[SketchPlugin_ConstraintDistance::ID()] = -1;
475 aDoFDelta[SketchPlugin_ConstraintEqual::ID()] = -1;
476 aDoFDelta[SketchPlugin_ConstraintHorizontal::ID()] = -1;
477 aDoFDelta[SketchPlugin_ConstraintLength::ID()] = -1;
478 aDoFDelta[SketchPlugin_ConstraintMiddle::ID()] = -1;
479 aDoFDelta[SketchPlugin_ConstraintParallel::ID()] = -1;
480 aDoFDelta[SketchPlugin_ConstraintPerpendicular::ID()] = -1;
481 aDoFDelta[SketchPlugin_ConstraintRadius::ID()] = -1;
482 aDoFDelta[SketchPlugin_ConstraintTangent::ID()] = -1;
483 aDoFDelta[SketchPlugin_ConstraintVertical::ID()] = -1;
488 std::map<CompositeFeaturePtr, int> aSketchDoF;
490 std::list<SketchSolver_Group*>::const_iterator aGroupIt = myGroups.begin();
491 for (; aGroupIt != myGroups.end(); ++aGroupIt) {
492 CompositeFeaturePtr aSketch = (*aGroupIt)->getWorkplane();
493 if (!aSketch->data()->isValid()) {
494 myDoF.erase(aSketch);
498 // check conflicting constraints in the group
499 if ((*aGroupIt)->isFailed())
500 aSketchDoF[aSketch] = -1;
501 // check the sketch is already processed
502 if (aSketchDoF.find(aSketch) != aSketchDoF.end() || aSketchDoF[aSketch] < 0)
505 std::set<AttributePtr> aCoincidentPoints;
507 int aNbSubs = aSketch->numberOfSubs();
508 for (int i = 0; i < aNbSubs; ++i) {
509 FeaturePtr aFeature = aSketch->subFeature(i);
510 // check DoF delta for invariant types
511 std::map<std::string, int>::const_iterator aFound = aDoFDelta.find(aFeature->getKind());
512 if (aFound != aDoFDelta.end()) {
513 aDoF += aFound->second;
517 // DoF delta in specific cases
518 if (aFeature->getKind() == SketchPlugin_ConstraintCoincidence::ID()) {
519 AttributePtr aCoincPoint[2] = {AttributePtr(), AttributePtr()};
520 for (int j = 0; j < 2; ++j) {
521 AttributeRefAttrPtr aRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
522 aFeature->attribute(SketchPlugin_Constraint::ATTRIBUTE(j)));
525 bool isPoint = !aRefAttr->isObject();
527 aCoincPoint[j] = aRefAttr->attr();
529 FeaturePtr anAttr = ModelAPI_Feature::feature(aRefAttr->object());
530 isPoint = anAttr && anAttr->getKind() == SketchPlugin_Point::ID();
532 aCoincPoint[j] = anAttr->attribute(SketchPlugin_Point::COORD_ID());
535 if (aCoincPoint[0] && aCoincPoint[1]) {
536 // point-point coincidence
537 if (aCoincidentPoints.find(aCoincPoint[0]) == aCoincidentPoints.end() ||
538 aCoincidentPoints.find(aCoincPoint[1]) == aCoincidentPoints.end())
542 for (int j = 0; j < 2; ++j)
544 aCoincidentPoints.insert(aCoincPoint[j]);
546 else if (aFeature->getKind() == SketchPlugin_ConstraintRigid::ID()) {
547 AttributeRefAttrPtr aRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
548 aFeature->attribute(SketchPlugin_Constraint::ENTITY_A()));
550 if (!aRefAttr->isObject())
551 aDoF -= 2; // attribute is a point
553 FeaturePtr anAttr = ModelAPI_Feature::feature(aRefAttr->object());
555 aDoF -= aDoFDelta[anAttr->getKind()];
558 else if (aFeature->getKind() == SketchPlugin_ConstraintMirror::ID() ||
559 aFeature->getKind() == SketchPlugin_MultiRotation::ID() ||
560 aFeature->getKind() == SketchPlugin_MultiTranslation::ID()) {
562 std::string anAttrName;
563 if (aFeature->getKind() == SketchPlugin_ConstraintMirror::ID())
564 anAttrName = SketchPlugin_Constraint::ENTITY_B();
566 if (aFeature->getKind() == SketchPlugin_MultiRotation::ID())
567 aNbCopies = aFeature->integer(SketchPlugin_MultiRotation::NUMBER_OF_OBJECTS_ID())->value() - 1;
568 else if (aFeature->getKind() == SketchPlugin_MultiTranslation::ID())
569 aNbCopies = aFeature->integer(SketchPlugin_MultiTranslation::NUMBER_OF_OBJECTS_ID())->value() - 1;
570 anAttrName = SketchPlugin_Constraint::ENTITY_A();
573 AttributeRefListPtr aRefListOfShapes = std::dynamic_pointer_cast<ModelAPI_AttributeRefList>(
574 aFeature->attribute(anAttrName));
575 std::list<ObjectPtr> anObjList = aRefListOfShapes->list();
576 std::list<ObjectPtr>::const_iterator anObjIt = anObjList.begin();
577 for (; anObjIt != anObjList.end(); ++anObjIt) {
578 FeaturePtr aSub = ModelAPI_Feature::feature(*anObjIt);
579 aDoF -= aDoFDelta[aSub->getKind()] * aNbCopies;
584 aSketchDoF[aSketch] = aDoF;
587 // Check the degrees of freedom are changed
588 std::map<CompositeFeaturePtr, int>::const_iterator aDoFIt = aSketchDoF.begin();
589 std::map<CompositeFeaturePtr, int>::iterator aFound;
590 for (; aDoFIt != aSketchDoF.end(); ++aDoFIt) {
591 if (aDoFIt->second < 0)
592 continue; // conflicting constraints on the current sketch
593 aFound = myDoF.find(aDoFIt->first);
594 if (aFound != myDoF.end() && aFound->second == aDoFIt->second)
595 continue; // nothing is changed
596 myDoF[aDoFIt->first] = aDoFIt->second;
597 // change attribute value
598 std::ostringstream aStream;
599 if (aDoFIt->second == 0)
600 aStream << "Sketch fully fixed (DOF = " << aDoFIt->second << ")";
602 aStream << "DOF (degree of freedom) = " << aDoFIt->second;
603 aDoFIt->first->data()->string(SketchPlugin_Sketch::SOLVER_DOF())->setValue(aStream.str());
607 bool SketchSolver_Manager::stopSendUpdate() const
609 // to avoid redisplay of each segment on update by solver one by one in the viewer
610 bool isUpdateFlushed = Events_Loop::loop()->isFlushed(anUpdateEvent);
611 if (isUpdateFlushed) {
612 Events_Loop::loop()->setFlushed(anUpdateEvent, false);
614 return isUpdateFlushed;
617 void SketchSolver_Manager::allowSendUpdate() const
619 Events_Loop::loop()->setFlushed(anUpdateEvent, true);