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);
113 if (theMessage->eventID() == Events_Loop::loop()->eventByName(EVENT_OBJECT_CREATED)
114 || theMessage->eventID() == Events_Loop::loop()->eventByName(EVENT_OBJECT_UPDATED)
115 || theMessage->eventID() == Events_Loop::loop()->eventByName(EVENT_OBJECT_MOVED)) {
116 std::shared_ptr<ModelAPI_ObjectUpdatedMessage> anUpdateMsg =
117 std::dynamic_pointer_cast<ModelAPI_ObjectUpdatedMessage>(theMessage);
118 std::set<ObjectPtr> aFeatures = anUpdateMsg->objects();
120 bool isUpdateFlushed = stopSendUpdate();
121 // Shows the message has at least one feature applicable for solver
122 bool hasProperFeature = false;
124 bool isMovedEvt = theMessage->eventID()
125 == Events_Loop::loop()->eventByName(EVENT_OBJECT_MOVED);
127 std::set<ObjectPtr>::iterator aFeatIter;
128 for (aFeatIter = aFeatures.begin(); aFeatIter != aFeatures.end(); aFeatIter++) {
129 std::shared_ptr<SketchPlugin_Feature> aSFeature =
130 std::dynamic_pointer_cast<SketchPlugin_Feature>(*aFeatIter);
132 moveEntity(aSFeature);
133 hasProperFeature = true;
137 std::list<FeaturePtr> aSketchFeatures = SketchSolver_Group::selectApplicableFeatures(aFeatures);
138 std::list<FeaturePtr>::iterator aFeatIter = aSketchFeatures.begin();
139 for (; aFeatIter != aSketchFeatures.end(); ++aFeatIter) {
140 if ((*aFeatIter)->getKind() == SketchPlugin_Sketch::ID()) {
141 std::shared_ptr<ModelAPI_CompositeFeature> aSketch =
142 std::dynamic_pointer_cast<ModelAPI_CompositeFeature>(*aFeatIter);
143 hasProperFeature = changeWorkplane(aSketch) || hasProperFeature;
146 std::shared_ptr<SketchPlugin_Feature> aFeature =
147 std::dynamic_pointer_cast<SketchPlugin_Feature>(*aFeatIter);
150 hasProperFeature = changeFeature(aFeature) || hasProperFeature;
154 bool needToUpdate = false;
155 // Solve the set of constraints
156 if (hasProperFeature)
157 needToUpdate = resolveConstraints();
159 // Features may be updated => now send events, but for all changed at once
162 // send update for movement in any case
163 if (needToUpdate || isMovedEvt)
164 Events_Loop::loop()->flush(anUpdateEvent);
166 } else if (theMessage->eventID() == Events_Loop::loop()->eventByName(EVENT_OBJECT_DELETED)) {
167 std::shared_ptr<ModelAPI_ObjectDeletedMessage> aDeleteMsg =
168 std::dynamic_pointer_cast<ModelAPI_ObjectDeletedMessage>(theMessage);
169 const std::set<std::string>& aFeatureGroups = aDeleteMsg->groups();
171 // Find SketchPlugin_Sketch::ID() in groups. The constraint groups should be updated when an object removed from Sketch
172 std::set<std::string>::const_iterator aFGrIter;
173 for (aFGrIter = aFeatureGroups.begin(); aFGrIter != aFeatureGroups.end(); aFGrIter++)
174 if (aFGrIter->compare(ModelAPI_ResultConstruction::group()) == 0 ||
175 aFGrIter->compare(ModelAPI_Feature::group()) == 0)
178 if (aFGrIter != aFeatureGroups.end()) {
179 std::list<SketchSolver_Group*> aGroupsToResolve;
180 std::list<SketchSolver_Group*>::iterator aGroupIter = myGroups.begin();
181 std::list<SketchSolver_Group*> aSeparatedGroups;
182 while (aGroupIter != myGroups.end()) {
183 if (!(*aGroupIter)->isWorkplaneValid()) { // the group should be removed
185 std::list<SketchSolver_Group*>::iterator aRemoveIt = aGroupIter++;
186 myGroups.erase(aRemoveIt);
189 if (!(*aGroupIter)->isConsistent()) { // some constraints were removed, try to split the group
190 (*aGroupIter)->splitGroup(aSeparatedGroups);
191 //if (!(*aGroupIter)->getWorkplane()->string(
192 // SketchPlugin_Sketch::SOLVER_ERROR())->value().empty())
193 aGroupsToResolve.push_back(*aGroupIter);
197 if (aSeparatedGroups.size() > 0) {
198 myGroups.insert(myGroups.end(), aSeparatedGroups.begin(), aSeparatedGroups.end());
199 aGroupsToResolve.insert(aGroupsToResolve.end(),
200 aSeparatedGroups.begin(), aSeparatedGroups.end());
203 if (!aGroupsToResolve.empty())
204 resolveConstraints(aGroupsToResolve);
208 myIsComputed = false;
211 void SketchSolver_Manager::checkConflictingConstraints(const std::shared_ptr<Events_Message>& theMessage)
213 if (theMessage->eventID() == Events_Loop::loop()->eventByName(EVENT_SOLVER_REPAIRED)) {
214 std::shared_ptr<ModelAPI_SolverFailedMessage> aMessage =
215 std::dynamic_pointer_cast<ModelAPI_SolverFailedMessage>(theMessage);
216 std::set<ObjectPtr> aSentObjs = aMessage->objects();
217 if (!aSentObjs.empty()) {
218 // Obtain sketch where the constraints are placed.
219 // It is enough to check only one constraint.
220 CompositeFeaturePtr aSketch;
221 FeaturePtr aConstraint = ModelAPI_Feature::feature(*aSentObjs.begin());
222 std::list<SketchSolver_Group*>::const_iterator aGrIt = myGroups.begin();
223 for (; aGrIt != myGroups.end(); ++aGrIt)
224 if ((*aGrIt)->isInteract(aConstraint)) {
225 aSketch = (*aGrIt)->getWorkplane();
229 // Search failed groups built on the same sketch
231 for (aGrIt = myGroups.begin(); aGrIt != myGroups.end(); ++aGrIt) {
232 SketchSolver_Group* aGroup = *aGrIt;
233 if (aGroup->isBaseWorkplane(aSketch) && aGroup->isFailed() &&
234 !aGroup->isInteract(aConstraint)) {
235 // reset error message on the sketch
236 aGroup->getWorkplane()->string(SketchPlugin_Sketch::SOLVER_ERROR())->setValue(
237 SketchSolver_Error::CONSTRAINTS());
238 Events_Loop::loop()->flush(Events_Loop::eventByName(EVENT_OBJECT_UPDATED));
247 // ============================================================================
248 // Function: changeWorkplane
249 // Purpose: update workplane by given parameters of the sketch
250 // ============================================================================
251 bool SketchSolver_Manager::changeWorkplane(CompositeFeaturePtr theSketch)
253 bool aResult = true; // changed when a workplane wrongly updated
254 bool isUpdated = false;
255 // Try to update specified workplane in all groups
256 std::list<SketchSolver_Group*>::iterator aGroupIter;
257 for (aGroupIter = myGroups.begin(); aGroupIter != myGroups.end(); aGroupIter++)
258 if ((*aGroupIter)->isBaseWorkplane(theSketch)) {
262 // If the workplane is not updated, so this is a new workplane
264 SketchSolver_Group* aNewGroup = new SketchSolver_Group(theSketch);
265 // Verify that the group is created successfully
266 if (!aNewGroup->isBaseWorkplane(theSketch) || !aNewGroup->isWorkplaneValid()) {
270 myGroups.push_back(aNewGroup);
275 // ============================================================================
276 // Function: changeConstraintOrEntity
277 // Purpose: create/update the constraint or the feature and place it into appropriate group
278 // ============================================================================
279 bool SketchSolver_Manager::changeFeature(std::shared_ptr<SketchPlugin_Feature> theFeature)
281 // Search the groups which this feature touches
282 std::set<GroupID> aGroups;
283 findGroups(theFeature, aGroups);
285 std::shared_ptr<SketchPlugin_Constraint> aConstraint =
286 std::dynamic_pointer_cast<SketchPlugin_Constraint>(theFeature);
288 // Process the groups list
289 if (aGroups.size() == 0) {
290 // There are no groups applicable for this constraint => create new one
291 // The group will be created only for constraints, not for features
292 if (!aConstraint) return false;
293 std::shared_ptr<ModelAPI_CompositeFeature> aWP = findWorkplane(aConstraint);
296 SketchSolver_Group* aGroup = new SketchSolver_Group(aWP);
297 if (!aGroup->changeConstraint(aConstraint)) {
301 myGroups.push_back(aGroup);
303 } else if (aGroups.size() == 1) { // Only one group => add feature into it
304 GroupID aGroupId = *(aGroups.begin());
305 std::list<SketchSolver_Group*>::iterator aGroupIter;
306 for (aGroupIter = myGroups.begin(); aGroupIter != myGroups.end(); aGroupIter++)
307 if ((*aGroupIter)->getId() == aGroupId) {
308 // If the group is empty, the feature is not added (the constraint only)
309 if (!aConstraint && !(*aGroupIter)->isEmpty())
310 return (*aGroupIter)->updateFeature(theFeature);
311 return (*aGroupIter)->changeConstraint(aConstraint);
313 } else if (aGroups.size() > 1) { // Several groups applicable for this feature => need to merge them
314 std::set<GroupID>::const_iterator aGroupsIter = aGroups.begin();
316 // Search first group
317 std::list<SketchSolver_Group*>::iterator aFirstGroupIter;
318 for (aFirstGroupIter = myGroups.begin(); aFirstGroupIter != myGroups.end(); aFirstGroupIter++)
319 if ((*aFirstGroupIter)->getId() == *aGroupsIter)
321 if (aFirstGroupIter == myGroups.end())
324 // Append other groups to the first one
325 std::list<SketchSolver_Group*>::iterator anOtherGroupIter = aFirstGroupIter;
327 for (aGroupsIter++; aGroupsIter != aGroups.end(); aGroupsIter++) {
328 for (; anOtherGroupIter != myGroups.end(); anOtherGroupIter++)
329 if ((*anOtherGroupIter)->getId() == *aGroupsIter)
331 if (anOtherGroupIter == myGroups.end()) { // Group disappears
332 anOtherGroupIter = aFirstGroupIter;
337 (*aFirstGroupIter)->mergeGroups(**anOtherGroupIter);
338 std::list<SketchSolver_Group*>::iterator aRemoveIt = anOtherGroupIter++;
340 myGroups.erase(aRemoveIt);
344 (*aFirstGroupIter)->changeConstraint(aConstraint);
346 (*aFirstGroupIter)->updateFeature(theFeature);
347 // groups are merged => need to resolve them
351 // Something goes wrong
355 // ============================================================================
356 // Function: moveEntity
357 // Purpose: update element moved on the sketch, which is used by constraints
358 // ============================================================================
359 void SketchSolver_Manager::moveEntity(std::shared_ptr<SketchPlugin_Feature> theFeature)
361 bool isMoved = false;
362 std::list<SketchSolver_Group*>::iterator aGroupIt = myGroups.begin();
363 for (; aGroupIt != myGroups.end(); aGroupIt++)
364 if (!(*aGroupIt)->isEmpty() && (*aGroupIt)->isInteract(theFeature)) {
365 (*aGroupIt)->moveFeature(theFeature);
369 if (!isMoved && theFeature->getKind() == SketchPlugin_Arc::ID()) {
370 // Workaround to move arc.
371 // If the arc has not been constrained, we will push it into empty group and apply movement.
372 for (aGroupIt = myGroups.begin(); aGroupIt != myGroups.end(); aGroupIt++)
373 if ((*aGroupIt)->isEmpty())
374 (*aGroupIt)->moveFeature(theFeature);
378 // ============================================================================
379 // Function: findGroups
380 // Purpose: search groups of entities interacting with given feature
381 // ============================================================================
382 void SketchSolver_Manager::findGroups(
383 std::shared_ptr<SketchPlugin_Feature> theFeature,
384 std::set<GroupID>& theGroupIDs) const
386 std::shared_ptr<ModelAPI_CompositeFeature> aWP = findWorkplane(theFeature);
388 SketchSolver_Group* anEmptyGroup = 0; // appropriate empty group for specified constraint
389 std::list<SketchSolver_Group*>::const_iterator aGroupIter;
390 for (aGroupIter = myGroups.begin(); aGroupIter != myGroups.end(); aGroupIter++)
391 if (aWP == (*aGroupIter)->getWorkplane() && (*aGroupIter)->isInteract(theFeature)) {
392 if (!(*aGroupIter)->isEmpty())
393 theGroupIDs.insert((*aGroupIter)->getId());
394 else if (!anEmptyGroup)
395 anEmptyGroup = *aGroupIter;
398 // When only empty group is found, use it
399 if (anEmptyGroup && theGroupIDs.empty())
400 theGroupIDs.insert(anEmptyGroup->getId());
403 // ============================================================================
404 // Function: findWorkplane
405 // Purpose: search workplane containing given feature
406 // ============================================================================
407 std::shared_ptr<ModelAPI_CompositeFeature> SketchSolver_Manager
408 ::findWorkplane(std::shared_ptr<SketchPlugin_Feature> theFeature) const
410 // Already verified workplanes
411 std::set<std::shared_ptr<ModelAPI_CompositeFeature> > aVerified;
413 std::list<SketchSolver_Group*>::const_iterator aGroupIter;
414 for (aGroupIter = myGroups.begin(); aGroupIter != myGroups.end(); aGroupIter++) {
415 std::shared_ptr<ModelAPI_CompositeFeature> aWP = (*aGroupIter)->getWorkplane();
416 if (aVerified.find(aWP) != aVerified.end())
419 DataPtr aData = aWP->data();
420 if (aData->isValid()) {
421 std::shared_ptr<ModelAPI_AttributeRefList> aWPFeatures = std::dynamic_pointer_cast<
422 ModelAPI_AttributeRefList>(aData->attribute(SketchPlugin_Sketch::FEATURES_ID()));
423 std::list<ObjectPtr> aFeaturesList = aWPFeatures->list();
424 std::list<ObjectPtr>::const_iterator anIter;
425 for (anIter = aFeaturesList.begin(); anIter != aFeaturesList.end(); anIter++)
426 if (*anIter == theFeature)
427 return aWP; // workplane is found
429 aVerified.insert(aWP);
432 return std::shared_ptr<ModelAPI_CompositeFeature>();
435 // ============================================================================
436 // Function: resolveConstraints
437 // Purpose: change entities according to available constraints
438 // ============================================================================
439 bool SketchSolver_Manager::resolveConstraints(const std::list<SketchSolver_Group*>& theGroups)
441 bool needToUpdate = false;
442 const std::list<SketchSolver_Group*>& aGroupsToResolve = theGroups.empty() ? myGroups : theGroups;
443 std::list<SketchSolver_Group*>::const_iterator aGroupIter = aGroupsToResolve.begin();
444 for (; aGroupIter != aGroupsToResolve.end(); aGroupIter++)
445 if ((*aGroupIter)->resolveConstraints())
450 // ============================================================================
451 // Function: degreesOfFreedom
452 // Purpose: calculate DoFs for each sketch
453 // ============================================================================
454 void SketchSolver_Manager::degreesOfFreedom()
456 static std::map<std::string, int> aDoFDelta; // indicates how many DoF adds or decreases a feature
457 static bool isNeedInit = true;
459 aDoFDelta[SketchPlugin_Point::ID()] = 2;
460 aDoFDelta[SketchPlugin_Line::ID()] = 4;
461 aDoFDelta[SketchPlugin_Circle::ID()] = 3;
462 aDoFDelta[SketchPlugin_Arc::ID()] = 5;
464 aDoFDelta[SketchPlugin_ConstraintAngle::ID()] = -1;
465 aDoFDelta[SketchPlugin_ConstraintCollinear::ID()] = -1;
466 aDoFDelta[SketchPlugin_ConstraintDistance::ID()] = -1;
467 aDoFDelta[SketchPlugin_ConstraintEqual::ID()] = -1;
468 aDoFDelta[SketchPlugin_ConstraintHorizontal::ID()] = -1;
469 aDoFDelta[SketchPlugin_ConstraintLength::ID()] = -1;
470 aDoFDelta[SketchPlugin_ConstraintMiddle::ID()] = -1;
471 aDoFDelta[SketchPlugin_ConstraintParallel::ID()] = -1;
472 aDoFDelta[SketchPlugin_ConstraintPerpendicular::ID()] = -1;
473 aDoFDelta[SketchPlugin_ConstraintRadius::ID()] = -1;
474 aDoFDelta[SketchPlugin_ConstraintTangent::ID()] = -1;
475 aDoFDelta[SketchPlugin_ConstraintVertical::ID()] = -1;
480 std::map<CompositeFeaturePtr, int> aSketchDoF;
482 std::list<SketchSolver_Group*>::const_iterator aGroupIt = myGroups.begin();
483 for (; aGroupIt != myGroups.end(); ++aGroupIt) {
484 CompositeFeaturePtr aSketch = (*aGroupIt)->getWorkplane();
485 if (!aSketch->data()->isValid()) {
486 myDoF.erase(aSketch);
490 // check conflicting constraints in the group
491 if ((*aGroupIt)->isFailed())
492 aSketchDoF[aSketch] = -1;
493 // check the sketch is already processed
494 if (aSketchDoF.find(aSketch) != aSketchDoF.end() || aSketchDoF[aSketch] < 0)
498 int aNbSubs = aSketch->numberOfSubs();
499 for (int i = 0; i < aNbSubs; ++i) {
500 FeaturePtr aFeature = aSketch->subFeature(i);
501 // check DoF delta for invariant types
502 std::map<std::string, int>::const_iterator aFound = aDoFDelta.find(aFeature->getKind());
503 if (aFound != aDoFDelta.end()) {
504 aDoF += aFound->second;
508 // DoF delta in specific cases
509 if (aFeature->getKind() == SketchPlugin_ConstraintCoincidence::ID()) {
510 for (int j = 0; j < 2; ++j) {
511 AttributeRefAttrPtr aRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
512 aFeature->attribute(SketchPlugin_Constraint::ATTRIBUTE(j)));
515 bool isPoint = !aRefAttr->isObject();
517 FeaturePtr anAttr = ModelAPI_Feature::feature(aRefAttr->object());
518 isPoint = anAttr && anAttr->getKind() == SketchPlugin_Point::ID();
524 else if (aFeature->getKind() == SketchPlugin_ConstraintRigid::ID()) {
525 AttributeRefAttrPtr aRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
526 aFeature->attribute(SketchPlugin_Constraint::ENTITY_A()));
528 if (!aRefAttr->isObject())
529 aDoF -= 2; // attribute is a point
531 FeaturePtr anAttr = ModelAPI_Feature::feature(aRefAttr->object());
533 aDoF -= aDoFDelta[anAttr->getKind()];
536 else if (aFeature->getKind() == SketchPlugin_ConstraintMirror::ID() ||
537 aFeature->getKind() == SketchPlugin_MultiRotation::ID() ||
538 aFeature->getKind() == SketchPlugin_MultiTranslation::ID()) {
540 std::string anAttrName;
541 if (aFeature->getKind() == SketchPlugin_ConstraintMirror::ID())
542 anAttrName = SketchPlugin_Constraint::ENTITY_B();
544 if (aFeature->getKind() == SketchPlugin_MultiRotation::ID())
545 aNbCopies = aFeature->integer(SketchPlugin_MultiRotation::NUMBER_OF_OBJECTS_ID())->value() - 1;
546 else if (aFeature->getKind() == SketchPlugin_MultiTranslation::ID())
547 aNbCopies = aFeature->integer(SketchPlugin_MultiTranslation::NUMBER_OF_OBJECTS_ID())->value() - 1;
548 anAttrName = SketchPlugin_Constraint::ENTITY_A();
551 AttributeRefListPtr aRefListOfShapes = std::dynamic_pointer_cast<ModelAPI_AttributeRefList>(
552 aFeature->attribute(anAttrName));
553 std::list<ObjectPtr> anObjList = aRefListOfShapes->list();
554 std::list<ObjectPtr>::const_iterator anObjIt = anObjList.begin();
555 for (; anObjIt != anObjList.end(); ++anObjIt) {
556 FeaturePtr aSub = ModelAPI_Feature::feature(*anObjIt);
557 aDoF -= aDoFDelta[aSub->getKind()] * aNbCopies;
562 aSketchDoF[aSketch] = aDoF;
565 // Check the degrees of freedom are changed
566 std::map<CompositeFeaturePtr, int>::const_iterator aDoFIt = aSketchDoF.begin();
567 std::map<CompositeFeaturePtr, int>::iterator aFound;
568 for (; aDoFIt != aSketchDoF.end(); ++aDoFIt) {
569 if (aDoFIt->second < 0)
570 continue; // conflicting constraints on the current sketch
571 aFound = myDoF.find(aDoFIt->first);
572 if (aFound != myDoF.end() && aFound->second == aDoFIt->second)
573 continue; // nothing is changed
574 myDoF[aDoFIt->first] = aDoFIt->second;
575 // change attribute value
576 std::ostringstream aStream;
577 std::string aValue = "DOF(degree of freedom) = ";
578 aStream << aDoFIt->second;
579 aDoFIt->first->data()->string(SketchPlugin_Sketch::SOLVER_DOF())->setValue(aValue);
581 Events_Loop::loop()->flush(Events_Loop::eventByName(EVENT_OBJECT_UPDATED));
585 bool SketchSolver_Manager::stopSendUpdate() const
587 // to avoid redisplay of each segment on update by solver one by one in the viewer
588 bool isUpdateFlushed = Events_Loop::loop()->isFlushed(anUpdateEvent);
589 if (isUpdateFlushed) {
590 Events_Loop::loop()->setFlushed(anUpdateEvent, false);
592 return isUpdateFlushed;
595 void SketchSolver_Manager::allowSendUpdate() const
597 Events_Loop::loop()->setFlushed(anUpdateEvent, true);