#include <Events_Loop.h>
#include <ModelAPI_AttributeDouble.h>
+#include <ModelAPI_AttributeRefList.h>
#include <ModelAPI_Data.h>
-#include <Model_Events.h>
+#include <ModelAPI_Events.h>
+
#include <SketchPlugin_Constraint.h>
-#include <SketchPlugin_ConstraintCoincidence.h>
+
+#include <SketchPlugin_Arc.h>
+#include <SketchPlugin_Circle.h>
#include <SketchPlugin_Line.h>
+#include <SketchPlugin_Point.h>
#include <SketchPlugin_Sketch.h>
+
+// Initialization of constraint manager self pointer
SketchSolver_ConstraintManager* SketchSolver_ConstraintManager::_self = 0;
-/// Global constaint manager object
+/// Global constraint manager object
SketchSolver_ConstraintManager* myManager = SketchSolver_ConstraintManager::Instance();
-/// This value is used to give unique index to the groups
-static Slvs_hGroup myGroupIndexer = 0;
// ========================================================
// ========= SketchSolver_ConstraintManager ===============
myGroups.clear();
// Register in event loop
- Events_Loop::loop()->registerListener(this, Events_Loop::eventByName(EVENT_FEATURE_CREATED));
- Events_Loop::loop()->registerListener(this, Events_Loop::eventByName(EVENT_FEATURE_UPDATED));
- Events_Loop::loop()->registerListener(this, Events_Loop::eventByName(EVENT_FEATURE_DELETED));
+ Events_Loop::loop()->registerListener(this, Events_Loop::eventByName(EVENT_OBJECT_CREATED));
+ Events_Loop::loop()->registerListener(this, Events_Loop::eventByName(EVENT_OBJECT_UPDATED));
+ Events_Loop::loop()->registerListener(this, Events_Loop::eventByName(EVENT_OBJECT_DELETED));
+ Events_Loop::loop()->registerListener(this, Events_Loop::eventByName(EVENT_OBJECT_MOVED));
}
SketchSolver_ConstraintManager::~SketchSolver_ConstraintManager()
myGroups.clear();
}
+// ============================================================================
+// Function: processEvent
+// Class: SketchSolver_PluginManager
+// Purpose: listen the event loop and process the message
+// ============================================================================
void SketchSolver_ConstraintManager::processEvent(const Events_Message* theMessage)
{
- if (theMessage->eventID() == Events_Loop::loop()->eventByName(EVENT_FEATURE_CREATED))
+ if (theMessage->eventID() == Events_Loop::loop()->eventByName(EVENT_OBJECT_CREATED) ||
+ theMessage->eventID() == Events_Loop::loop()->eventByName(EVENT_OBJECT_UPDATED) ||
+ theMessage->eventID() == Events_Loop::loop()->eventByName(EVENT_OBJECT_MOVED))
{
- const Model_FeatureUpdatedMessage* aCreateMsg = dynamic_cast<const Model_FeatureUpdatedMessage*>(theMessage);
+ const ModelAPI_ObjectUpdatedMessage* anUpdateMsg =
+ dynamic_cast<const ModelAPI_ObjectUpdatedMessage*>(theMessage);
+ std::set< ObjectPtr > aFeatures = anUpdateMsg->objects();
- // Only sketches and constraints can be added by Create event
- boost::shared_ptr<SketchPlugin_Sketch> aSketch =
- boost::dynamic_pointer_cast<SketchPlugin_Sketch>(aCreateMsg->feature());
- if (aSketch)
+ bool isModifiedEvt =
+ theMessage->eventID() == Events_Loop::loop()->eventByName(EVENT_OBJECT_MOVED);
+ if (!isModifiedEvt)
{
- addWorkplane(aSketch);
- return ;
+ std::set< ObjectPtr >::iterator aFeatIter;
+ for (aFeatIter = aFeatures.begin(); aFeatIter != aFeatures.end(); aFeatIter++)
+ {
+ FeaturePtr aFeature = boost::dynamic_pointer_cast<ModelAPI_Feature>(*aFeatIter);
+ if (!aFeature) continue;
+ // Only sketches and constraints can be added by Create event
+ const std::string& aFeatureKind = aFeature->getKind();
+ if (aFeatureKind.compare(SKETCH_KIND) == 0)
+ {
+ boost::shared_ptr<SketchPlugin_Feature> aSketch =
+ boost::dynamic_pointer_cast<SketchPlugin_Feature>(aFeature);
+ if (aSketch)
+ changeWorkplane(aSketch);
+ continue;
+ }
+ boost::shared_ptr<SketchPlugin_Constraint> aConstraint =
+ boost::dynamic_pointer_cast<SketchPlugin_Constraint>(aFeature);
+ if (aConstraint)
+ changeConstraint(aConstraint);
+ else
+ {
+ // Sketch plugin features can be only updated
+ boost::shared_ptr<SketchPlugin_Feature> aSFeature =
+ boost::dynamic_pointer_cast<SketchPlugin_Feature>(aFeature);
+ if (aSFeature)
+ updateEntity(aSFeature);
+ }
+ }
}
- boost::shared_ptr<SketchPlugin_Constraint> aConstraint =
- boost::dynamic_pointer_cast<SketchPlugin_Constraint>(aCreateMsg->feature());
- if (aConstraint)
+
+ // Solve the set of constraints
+ resolveConstraints();
+ }
+ else if (theMessage->eventID() == Events_Loop::loop()->eventByName(EVENT_OBJECT_DELETED))
+ {
+ const ModelAPI_ObjectDeletedMessage* aDeleteMsg =
+ dynamic_cast<const ModelAPI_ObjectDeletedMessage*>(theMessage);
+ const std::set<std::string>& aFeatureGroups = aDeleteMsg->groups();
+
+ // Find SKETCH_KIND in groups. The constraint groups should be updated when an object removed from Sketch
+ std::set<std::string>::const_iterator aFGrIter;
+ for (aFGrIter = aFeatureGroups.begin(); aFGrIter != aFeatureGroups.end(); aFGrIter++)
+ if (aFGrIter->compare(SKETCH_KIND) == 0)
+ break;
+
+ if (aFGrIter != aFeatureGroups.end())
{
- addConstraint(aConstraint);
- return ;
+ std::vector<SketchSolver_ConstraintGroup*>::iterator aGroupIter = myGroups.begin();
+ std::vector<SketchSolver_ConstraintGroup*> aSeparatedGroups;
+ while (aGroupIter != myGroups.end())
+ {
+ if (!(*aGroupIter)->isWorkplaneValid())
+ { // the group should be removed
+ delete *aGroupIter;
+ int aShift = aGroupIter - myGroups.begin();
+ myGroups.erase(aGroupIter);
+ aGroupIter = myGroups.begin() + aShift;
+ continue;
+ }
+ if ((*aGroupIter)->updateGroup())
+ { // some constraints were removed, try to split the group
+ (*aGroupIter)->splitGroup(aSeparatedGroups);
+ }
+ aGroupIter++;
+ }
+ if (aSeparatedGroups.size() > 0)
+ myGroups.insert(myGroups.end(), aSeparatedGroups.begin(), aSeparatedGroups.end());
}
}
- else if (theMessage->eventID() == Events_Loop::loop()->eventByName(EVENT_FEATURE_DELETED))
+}
+
+// ============================================================================
+// Function: changeWorkplane
+// Class: SketchSolver_PluginManager
+// Purpose: update workplane by given parameters of the sketch
+// ============================================================================
+bool SketchSolver_ConstraintManager::changeWorkplane(boost::shared_ptr<SketchPlugin_Feature> theSketch)
+{
+ bool aResult = true; // changed when a workplane wrongly updated
+ bool isUpdated = false;
+ // Try to update specified workplane in all groups
+ std::vector<SketchSolver_ConstraintGroup*>::iterator aGroupIter;
+ for (aGroupIter = myGroups.begin(); aGroupIter != myGroups.end(); aGroupIter++)
+ if ((*aGroupIter)->isBaseWorkplane(theSketch))
+ {
+ isUpdated = true;
+ if (!(*aGroupIter)->updateWorkplane())
+ aResult = false;
+ }
+ // If the workplane is not updated, so this is a new workplane
+ if (!isUpdated)
{
- const Model_FeatureDeletedMessage* aDeleteMsg = dynamic_cast<const Model_FeatureDeletedMessage*>(theMessage);
- /// \todo Implement deleting objects on event
+ SketchSolver_ConstraintGroup* aNewGroup = new SketchSolver_ConstraintGroup(theSketch);
+ // Verify that the group is created successfully
+ if (!aNewGroup->isBaseWorkplane(theSketch))
+ {
+ delete aNewGroup;
+ return false;
+ }
+ myGroups.push_back(aNewGroup);
}
- else if (theMessage->eventID() == Events_Loop::loop()->eventByName(EVENT_FEATURE_UPDATED))
- {
- const Model_FeatureUpdatedMessage* aUpdateMsg = dynamic_cast<const Model_FeatureUpdatedMessage*>(theMessage);
+ return aResult;
+}
- boost::shared_ptr<SketchPlugin_Sketch> aSketch =
- boost::dynamic_pointer_cast<SketchPlugin_Sketch>(aUpdateMsg->feature());
- if (aSketch)
+// ============================================================================
+// Function: changeConstraint
+// Class: SketchSolver_PluginManager
+// Purpose: create/update the constraint and place it into appropriate group
+// ============================================================================
+bool SketchSolver_ConstraintManager::changeConstraint(
+ boost::shared_ptr<SketchPlugin_Constraint> theConstraint)
+{
+ // Search the groups which this constraint touches
+ std::set<Slvs_hGroup> aGroups;
+ findGroups(theConstraint, aGroups);
+
+ // Process the groups list
+ if (aGroups.size() == 0)
+ { // There are no groups applicable for this constraint => create new one
+ boost::shared_ptr<SketchPlugin_Feature> aWP = findWorkplaneForConstraint(theConstraint);
+ if (!aWP) return false;
+ SketchSolver_ConstraintGroup* aGroup = new SketchSolver_ConstraintGroup(aWP);
+ if (!aGroup->changeConstraint(theConstraint))
{
- updateWorkplane(aSketch);
- return ;
+ delete aGroup;
+ return false;
}
-
- boost::shared_ptr<SketchPlugin_Constraint> aConstraint =
- boost::dynamic_pointer_cast<SketchPlugin_Constraint>(aUpdateMsg->feature());
- if (aConstraint)
+ myGroups.push_back(aGroup);
+ return true;
+ }
+ else if (aGroups.size() == 1)
+ { // Only one group => add constraint into it
+ Slvs_hGroup aGroupId = *(aGroups.begin());
+ std::vector<SketchSolver_ConstraintGroup*>::iterator aGroupIter;
+ for (aGroupIter = myGroups.begin(); aGroupIter != myGroups.end(); aGroupIter++)
+ if ((*aGroupIter)->getId() == aGroupId)
+ return (*aGroupIter)->changeConstraint(theConstraint);
+ }
+ else if (aGroups.size() > 1)
+ { // Several groups applicable for this constraint => need to merge them
+ std::set<Slvs_hGroup>::const_iterator aGroupsIter = aGroups.begin();
+
+ // Search first group
+ std::vector<SketchSolver_ConstraintGroup*>::iterator aFirstGroupIter;
+ for (aFirstGroupIter = myGroups.begin(); aFirstGroupIter != myGroups.end(); aFirstGroupIter++)
+ if ((*aFirstGroupIter)->getId() == *aGroupsIter)
+ break;
+ if (aFirstGroupIter == myGroups.end())
+ return false;
+
+ // Append other groups to the first one
+ std::vector<SketchSolver_ConstraintGroup*>::iterator anOtherGroupIter = aFirstGroupIter + 1;
+ for (aGroupsIter++; aGroupsIter != aGroups.end(); aGroupsIter++)
{
- updateConstraint(aConstraint);
- return ;
+ for ( ; anOtherGroupIter != myGroups.end(); anOtherGroupIter++)
+ if ((*anOtherGroupIter)->getId() == *aGroupsIter)
+ break;
+ if (anOtherGroupIter == myGroups.end())
+ { // Group disappears
+ anOtherGroupIter = aFirstGroupIter + 1;
+ continue;
+ }
+
+ (*aFirstGroupIter)->mergeGroups(**anOtherGroupIter);
+ int aShiftFirst = aFirstGroupIter - myGroups.begin();
+ int aShiftOther = anOtherGroupIter - myGroups.begin();
+ delete *anOtherGroupIter;
+ myGroups.erase(anOtherGroupIter);
+ aFirstGroupIter = myGroups.begin() + aShiftFirst;
+ anOtherGroupIter = myGroups.begin() + aShiftOther;
}
- boost::shared_ptr<SketchPlugin_Feature> aFeature =
- boost::dynamic_pointer_cast<SketchPlugin_Feature>(aUpdateMsg->feature());
- if (aFeature)
- updateEntity(aFeature);
+ return (*aFirstGroupIter)->changeConstraint(theConstraint);
}
-}
+ // Something goes wrong
+ return false;
+}
-bool SketchSolver_ConstraintManager::addWorkplane(boost::shared_ptr<SketchPlugin_Sketch> theSketch)
+// ============================================================================
+// Function: updateEntity
+// Class: SketchSolver_PluginManager
+// Purpose: update any element on the sketch, which is used by constraints
+// ============================================================================
+void SketchSolver_ConstraintManager::updateEntity(boost::shared_ptr<SketchPlugin_Feature> theFeature)
{
- // Check the specified workplane is already used
- std::vector<SketchSolver_ConstraintGroup>::const_iterator aGroupIter;
- for (aGroupIter = myGroups.begin(); aGroupIter != myGroups.end(); aGroupIter++)
- if (aGroupIter->isBaseWorkplane(theSketch))
- return true;
- // Create new group for workplane
- SketchSolver_ConstraintGroup aNewGroup(theSketch);
- // Verify that the group is created successfully
- if (!aNewGroup.isBaseWorkplane(theSketch))
- return false;
- myGroups.push_back(aNewGroup);
- return true;
-}
+ // Create list of attributes depending on type of the feature
+ std::vector<std::string> anAttrList;
+ const std::string& aFeatureKind = theFeature->getKind();
+ // Point
+ if (aFeatureKind.compare(SKETCH_POINT_KIND) == 0)
+ anAttrList.push_back(POINT_ATTR_COORD);
+ // Line
+ else if (aFeatureKind.compare(SKETCH_LINE_KIND) == 0)
+ {
+ anAttrList.push_back(LINE_ATTR_START);
+ anAttrList.push_back(LINE_ATTR_END);
+ }
+ // Circle
+ else if (aFeatureKind.compare(SKETCH_CIRCLE_KIND) == 0)
+ {
+ anAttrList.push_back(CIRCLE_ATTR_CENTER);
+ anAttrList.push_back(CIRCLE_ATTR_RADIUS);
+ }
+ // Arc
+ else if (aFeatureKind.compare(SKETCH_ARC_KIND) == 0)
+ {
+ anAttrList.push_back(ARC_ATTR_CENTER);
+ anAttrList.push_back(ARC_ATTR_START);
+ anAttrList.push_back(ARC_ATTR_END);
+ }
+ /// \todo Other types of features should be implemented
+ // Check changing of feature's attributes (go through the groups and search usage of the attributes)
+ std::vector<std::string>::const_iterator anAttrIter;
+ for (anAttrIter = anAttrList.begin(); anAttrIter != anAttrList.end(); anAttrIter++)
+ {
+ std::vector<SketchSolver_ConstraintGroup*>::iterator aGroupIter;
+ for (aGroupIter = myGroups.begin(); aGroupIter != myGroups.end(); aGroupIter++)
+ {
+ if ((*aGroupIter)->isEmpty())
+ continue;
+ boost::shared_ptr<ModelAPI_Attribute> anAttribute =
+ boost::dynamic_pointer_cast<ModelAPI_Attribute>(theFeature->data()->attribute(*anAttrIter));
+ (*aGroupIter)->updateEntityIfPossible(anAttribute);
+ }
+ }
-void SketchSolver_ConstraintManager::findGroups(
- boost::shared_ptr<SketchPlugin_Constraint> theConstraint,
- std::vector<Slvs_hGroup>& theGroupIDs) const
-{
- std::vector<SketchSolver_ConstraintGroup>::const_iterator aGroupIter;
+ std::vector<SketchSolver_ConstraintGroup*>::iterator aGroupIter;
for (aGroupIter = myGroups.begin(); aGroupIter != myGroups.end(); aGroupIter++)
- if (aGroupIter->isInteract(theConstraint))
- theGroupIDs.push_back(aGroupIter->getId());
+ if (!(*aGroupIter)->isEmpty())
+ (*aGroupIter)->updateRelatedConstraints(theFeature);
}
-// ========================================================
-// ========= SketchSolver_ConstraintGroup ===============
-// ========================================================
-
-SketchSolver_ConstraintManager::SketchSolver_ConstraintGroup::
- SketchSolver_ConstraintGroup(boost::shared_ptr<SketchPlugin_Sketch> theWorkplane)
- : myID(++myGroupIndexer),
- myParamMaxID(0),
- myEntityMaxID(0),
- myConstrMaxID(0),
- myConstraintMap()
+// ============================================================================
+// Function: findGroups
+// Class: SketchSolver_PluginManager
+// Purpose: search groups of entities interacting with given constraint
+// ============================================================================
+void SketchSolver_ConstraintManager::findGroups(
+ boost::shared_ptr<SketchPlugin_Constraint> theConstraint,
+ std::set<Slvs_hGroup>& theGroupIDs) const
{
- myParams.clear();
- myEntities.clear();
- myConstraints.clear();
-
- // Nullify all elements of the set of equations
- myConstrSet.param = 0;
- myConstrSet.entity = 0;
- myConstrSet.constraint = 0;
- myConstrSet.failed = 0;
-
- // Initialize workplane
- mySketch = theWorkplane;
- addWorkplane(theWorkplane);
-}
+ boost::shared_ptr<SketchPlugin_Feature> aWP = findWorkplaneForConstraint(theConstraint);
-SketchSolver_ConstraintManager::SketchSolver_ConstraintGroup::~SketchSolver_ConstraintGroup()
-{
- myParams.clear();
- myEntities.clear();
- myConstraints.clear();
- myConstraintMap.clear();
-
- if (myConstrSet.param)
- delete [] myConstrSet.param;
- if (myConstrSet.entity)
- delete [] myConstrSet.entity;
- if (myConstrSet.constraint)
- delete [] myConstrSet.constraint;
- if (myConstrSet.failed)
- delete [] myConstrSet.failed;
-}
+ SketchSolver_ConstraintGroup* anEmptyGroup = 0; // appropriate empty group for specified constraint
+ std::vector<SketchSolver_ConstraintGroup*>::const_iterator aGroupIter;
+ for (aGroupIter = myGroups.begin(); aGroupIter != myGroups.end(); aGroupIter++)
+ if (aWP == (*aGroupIter)->getWorkplane() && (*aGroupIter)->isInteract(theConstraint))
+ {
+ if (!(*aGroupIter)->isEmpty())
+ theGroupIDs.insert((*aGroupIter)->getId());
+ else if (!anEmptyGroup)
+ anEmptyGroup = *aGroupIter;
+ }
-bool SketchSolver_ConstraintManager::SketchSolver_ConstraintGroup::isBaseWorkplane(
- boost::shared_ptr<SketchPlugin_Sketch> theWorkplane) const
-{
- return theWorkplane == mySketch;
+ // When only empty group is found, use it
+ if (anEmptyGroup && theGroupIDs.empty())
+ theGroupIDs.insert(anEmptyGroup->getId());
}
-bool SketchSolver_ConstraintManager::SketchSolver_ConstraintGroup::isInteract(
- boost::shared_ptr<SketchPlugin_Constraint> theConstraint) const
+// ============================================================================
+// Function: findWorkplaneForConstraint
+// Class: SketchSolver_PluginManager
+// Purpose: search workplane containing given constraint
+// ============================================================================
+boost::shared_ptr<SketchPlugin_Feature> SketchSolver_ConstraintManager::findWorkplaneForConstraint(
+ boost::shared_ptr<SketchPlugin_Constraint> theConstraint) const
{
- /// \todo Should be implemented
- return false;
-}
+ // Already verified workplanes
+ std::set< boost::shared_ptr<SketchPlugin_Feature> > aVerified;
-bool SketchSolver_ConstraintManager::SketchSolver_ConstraintGroup::addConstraint(
- boost::shared_ptr<SketchPlugin_Constraint> theConstraint)
-{
- if (myWorkplane.h == 0)
+ std::vector<SketchSolver_ConstraintGroup*>::const_iterator aGroupIter;
+ for (aGroupIter = myGroups.begin(); aGroupIter != myGroups.end(); aGroupIter++)
{
-// // Create workplane when first constraint is added
-// std::list< boost::shared_ptr<ModelAPI_Attribute> > aWPAttr;
-// theConstraint->getSketchParameters(aWPAttr);
-// if (!addWorkplane(aWPAttr))
-// return false;
+ boost::shared_ptr<SketchPlugin_Feature> aWP = (*aGroupIter)->getWorkplane();
+ if (aVerified.find(aWP) != aVerified.end())
+ continue;
+
+ boost::shared_ptr<ModelAPI_AttributeRefList> aWPFeatures =
+ boost::dynamic_pointer_cast<ModelAPI_AttributeRefList>(aWP->data()->attribute(SKETCH_ATTR_FEATURES));
+ std::list< ObjectPtr >& aFeaturesList = aWPFeatures->list();
+ std::list< ObjectPtr >::const_iterator anIter;
+ for (anIter = aFeaturesList.begin(); anIter != aFeaturesList.end(); anIter++)
+ if (*anIter == theConstraint)
+ return aWP; // workplane is found
+ aVerified.insert(aWP);
}
- // Create constraint parameters
- double aDistance = 0.0; // scalar value of the constraint
- boost::shared_ptr<ModelAPI_AttributeDouble> aDistAttr =
- boost::dynamic_pointer_cast<ModelAPI_AttributeDouble>(theConstraint->data()->attribute(CONSTRAINT_ATTR_VALUE));
- if (aDistAttr.get())
- aDistance = aDistAttr->value();
-
- /// \todo Specify the entities
- Slvs_hEntity aPtA, aPtB, aEntityA, aEntityB; // parameters of the constraint
- boost::shared_ptr<ModelAPI_Attribute> aEntAttr = theConstraint->data()->attribute(CONSTRAINT_ATTR_ENTITY_A);
- aPtA = addEntity(aEntAttr);
- if (aPtA == 0) return false;
- aEntAttr = theConstraint->data()->attribute(CONSTRAINT_ATTR_ENTITY_B);
- aPtB = addEntity(aEntAttr);
- if (aPtB == 0) return false;
- aEntAttr = theConstraint->data()->attribute(CONSTRAINT_ATTR_ENTITY_C);
- aEntityA = addEntity(aEntAttr);
- if (aEntityA == 0) return false;
- aEntAttr = theConstraint->data()->attribute(CONSTRAINT_ATTR_ENTITY_D);
- aEntityB = addEntity(aEntAttr);
- if (aEntityB == 0) return false;
-
- // Constraint type
- int aConstrType = getConstraintType(theConstraint);
- if (aConstrType == 0) return false;
-
- // Create SolveSpace constraint structure
- Slvs_Constraint aConstraint =
- Slvs_MakeConstraint(++myConstrMaxID, myID, aConstrType, myWorkplane.h,
- aDistance, aPtA, aPtB, aEntityA, aEntityB);
- myConstraints.push_back(aConstraint);
- myConstraintMap[theConstraint] = *(myConstraints.rbegin());
-
- return true;
+ return boost::shared_ptr<SketchPlugin_Feature>();
}
-Slvs_hEntity SketchSolver_ConstraintManager::SketchSolver_ConstraintGroup::addEntity(
- boost::shared_ptr<ModelAPI_Attribute> theEntity)
+// ============================================================================
+// Function: resolveConstraints
+// Class: SketchSolver_PluginManager
+// Purpose: change entities according to available constraints
+// ============================================================================
+void SketchSolver_ConstraintManager::resolveConstraints()
{
- /// \todo Should be implemented
- return 0;
-}
+ std::vector<SketchSolver_ConstraintGroup*>::iterator aGroupIter;
+ for (aGroupIter = myGroups.begin(); aGroupIter != myGroups.end(); aGroupIter++)
+ (*aGroupIter)->resolveConstraints();
-bool SketchSolver_ConstraintManager::SketchSolver_ConstraintGroup::addWorkplane(
- boost::shared_ptr<SketchPlugin_Sketch> theParams)
-{
- /// \todo Should be implemented
- return false;
+ // Features may be updated => send events
+ Events_Loop::loop()->flush(Events_Loop::eventByName(EVENT_OBJECT_UPDATED));
}
-int SketchSolver_ConstraintManager::SketchSolver_ConstraintGroup::getConstraintType(
- const boost::shared_ptr<SketchPlugin_Constraint>& theConstraint) const
-{
-// if (theConstraint->getKind() == SketchPlugin_ConstraintDistance().getKind())
-// {
-// boost::shared_ptr<ModelAPI_Attribute> aPtA = theConstraint->data()->attribute(CONSTRAINT_ATTR_POINT_A);
-// boost::shared_ptr<ModelAPI_Attribute> aPtB = theConstraint->data()->attribute(CONSTRAINT_ATTR_POINT_B);
-// boost::shared_ptr<ModelAPI_Attribute> aEntA = theConstraint->data()->attribute(CONSTRAINT_ATTR_ENTITY_A);
-// boost::shared_ptr<ModelAPI_Attribute> aEntB = theConstraint->data()->attribute(CONSTRAINT_ATTR_ENTITY_B);
-// boost::shared_ptr<ModelAPI_AttributeDouble> aDistance =
-// boost::shared_dynamic_cast<ModelAPI_AttributeDouble>(theConstraint->data()->attribute(CONSTRAINT_ATTR_VALUE));
-// if (aPtA.get()) // ptA is an attribute of the constraint
-// {
-//// if (aEntA.get()) // entityA is an attribute of the constraint
-//// {
-//// if (aEntA->feature()->getKind() == SketchPlugin_Line().getKind()) // entityA is a line
-//// {
-//// if (aEntB.get() && aEntB->feature()->getKind() == SketchPlugin_Line().getKind()) // entityB is a line too
-//// return SLVS_C_ANGLE;
-//// else if (aPtB.get()) // ptB is also an attribute of the constraint
-//// return SLVS_C_PROJ_PT_DISTANCE;
-//// else
-//// return SLVS_C_PT_LINE_DISTANCE;
-//// }
-//// /// \todo Implement other point-entity distances
-//// }
-//// else
-// if (aPtB.get()) // ptB is an attribute of the constrtaint => point-point distance
-// {
-// if (aDistance->value() == 0.0)
-// return SLVS_C_POINTS_COINCIDENT;
-// else
-// return SLVS_C_PT_PT_DISTANCE;
-// }
-// }
-// else if (aEntA.get() && !aEntB.get() && !aPtB.get())
-// return SLVS_C_DIAMETER;
-// return SLVS_C_UNKNOWN;
-// }
- /// \todo Implement other kind of constrtaints
-
- return SLVS_C_UNKNOWN;
-}
