// Copyright (C) 2014-20xx CEA/DEN, EDF R&D
-// File: PartSet_Tools.h
+// File: PartSet_Tools.cpp
// Created: 28 Apr 2014
// Author: Natalia ERMOLAEVA
#include <PartSet_Tools.h>
+#include <PartSet_Module.h>
+#include <PartSet_SketcherMgr.h>
#include <ModelAPI_Data.h>
#include <ModelAPI_AttributeDouble.h>
#include <ModelAPI_Session.h>
#include <ModelAPI_ResultConstruction.h>
+#include <XGUI_ModuleConnector.h>
+#include <XGUI_Displayer.h>
+#include <XGUI_Workshop.h>
+#include <XGUI_SelectionMgr.h>
+#include <XGUI_Selection.h>
+
#include <GeomDataAPI_Point.h>
#include <GeomDataAPI_Dir.h>
#include <GeomDataAPI_Point2D.h>
#include <SketchPlugin_Line.h>
#include <SketchPlugin_Point.h>
+#include <ModuleBase_IWorkshop.h>
#include <ModuleBase_ViewerPrs.h>
#include <V3d_View.hxx>
#include <TopoDS.hxx>
#include <TopoDS_Edge.hxx>
#include <TopoDS_Vertex.hxx>
+#include <AIS_InteractiveObject.hxx>
+#include <StdSelect_BRepOwner.hxx>
+#include <SelectMgr_IndexedMapOfOwner.hxx>
#ifdef _DEBUG
#include <QDebug>
std::shared_ptr<GeomDataAPI_Dir> aX = std::dynamic_pointer_cast<GeomDataAPI_Dir>(
aData->attribute(SketchPlugin_Sketch::DIRX_ID()));
- std::shared_ptr<GeomDataAPI_Dir> anY = std::dynamic_pointer_cast<GeomDataAPI_Dir>(
- aData->attribute(SketchPlugin_Sketch::DIRY_ID()));
+ std::shared_ptr<GeomDataAPI_Dir> aNorm = std::dynamic_pointer_cast<GeomDataAPI_Dir>(
+ aData->attribute(SketchPlugin_Sketch::NORM_ID()));
+ std::shared_ptr<GeomAPI_XYZ> anY = aNorm->xyz()->cross(aX->xyz());
gp_Pnt anOriginPnt(anOrigin->x(), anOrigin->y(), anOrigin->z());
gp_Vec aVec(anOriginPnt, thePoint);
theY = aVec.X() * anY->x() + aVec.Y() * anY->y() + aVec.Z() * anY->z();
}
+std::shared_ptr<GeomAPI_Pnt2d> PartSet_Tools::convertTo2D(FeaturePtr theSketch,
+ const std::shared_ptr<GeomAPI_Pnt>& thePnt)
+{
+ std::shared_ptr<GeomAPI_Pnt2d> aRes;
+ if (theSketch->getKind() != SketchPlugin_Sketch::ID())
+ return aRes;
+ std::shared_ptr<GeomDataAPI_Point> aC = std::dynamic_pointer_cast<GeomDataAPI_Point>(
+ theSketch->data()->attribute(SketchPlugin_Sketch::ORIGIN_ID()));
+ std::shared_ptr<GeomDataAPI_Dir> aNorm = std::dynamic_pointer_cast<GeomDataAPI_Dir>(
+ theSketch->data()->attribute(SketchPlugin_Sketch::NORM_ID()));
+ std::shared_ptr<GeomDataAPI_Dir> aX = std::dynamic_pointer_cast<GeomDataAPI_Dir>(
+ theSketch->data()->attribute(SketchPlugin_Sketch::DIRX_ID()));
+ std::shared_ptr<GeomAPI_Dir> aY(new GeomAPI_Dir(aNorm->dir()->cross(aX->dir())));
+ return thePnt->to2D(aC->pnt(), aX->dir(), aY);
+}
+
+
std::shared_ptr<GeomAPI_Pnt> PartSet_Tools::convertTo3D(const double theX, const double theY, FeaturePtr theSketch)
{
std::shared_ptr<ModelAPI_Data> aData = theSketch->data();
aData->attribute(SketchPlugin_Sketch::ORIGIN_ID()));
std::shared_ptr<GeomDataAPI_Dir> aX = std::dynamic_pointer_cast<GeomDataAPI_Dir>(
aData->attribute(SketchPlugin_Sketch::DIRX_ID()));
- std::shared_ptr<GeomDataAPI_Dir> aY = std::dynamic_pointer_cast<GeomDataAPI_Dir>(
- aData->attribute(SketchPlugin_Sketch::DIRY_ID()));
+ std::shared_ptr<GeomDataAPI_Dir> aNorm = std::dynamic_pointer_cast<GeomDataAPI_Dir>(
+ aData->attribute(SketchPlugin_Sketch::NORM_ID()));
+ std::shared_ptr<GeomAPI_Dir> aY(new GeomAPI_Dir(aNorm->dir()->cross(aX->dir())));
std::shared_ptr<GeomAPI_Pnt2d> aPnt2d =
std::shared_ptr<GeomAPI_Pnt2d>(new GeomAPI_Pnt2d(theX, theY));
- return aPnt2d->to3D(aC->pnt(), aX->dir(), aY->dir());
-}
-
-ObjectPtr PartSet_Tools::nearestFeature(QPoint thePoint, Handle_V3d_View theView,
- FeaturePtr theSketch,
- const QList<ModuleBase_ViewerPrs>& theSelected,
- const QList<ModuleBase_ViewerPrs>& theHighlighted)
-{
- // firstly it finds the feature in the list of highlight
- ObjectPtr aDeltaObject = nearestFeature(thePoint, theView, theSketch, theHighlighted);
- if (!aDeltaObject)
- // secondly it finds the feature in the list of selected objects
- aDeltaObject = nearestFeature(thePoint, theView, theSketch, theSelected);
-
- return aDeltaObject;
-}
-
-ObjectPtr PartSet_Tools::nearestFeature(QPoint thePoint, Handle_V3d_View theView,
- FeaturePtr theSketch,
- const QList<ModuleBase_ViewerPrs>& thePresentations)
-{
- ObjectPtr aDeltaObject;
-
- CompositeFeaturePtr aSketch =
- std::dynamic_pointer_cast<ModelAPI_CompositeFeature>(theSketch);
- // 1. find it in the selected list by the selected point
- if (!aDeltaObject) {
- double aX, anY;
- gp_Pnt aPoint = PartSet_Tools::convertClickToPoint(thePoint, theView);
- PartSet_Tools::convertTo2D(aPoint, theSketch, theView, aX, anY);
-
- FeaturePtr aFeature;
- double aMinDelta = -1;
- ModuleBase_ViewerPrs aPrs;
- foreach (ModuleBase_ViewerPrs aPrs, thePresentations) {
- if (!aPrs.object())
- continue;
- FeaturePtr aFeature = ModelAPI_Feature::feature(aPrs.object());
- std::shared_ptr<SketchPlugin_Feature> aSketchFeature = std::dynamic_pointer_cast<
- SketchPlugin_Feature>(aFeature);
- if (!aSketchFeature || !aSketch->isSub(aSketchFeature))
- continue;
-
- double aDelta = aSketchFeature->distanceToPoint(
- std::shared_ptr<GeomAPI_Pnt2d>(new GeomAPI_Pnt2d(aX, anY)));
- if (aMinDelta < 0 || aMinDelta > aDelta) {
- aMinDelta = aDelta;
- // TODO aDeltaObject = aPrs.result();
- }
- }
- }
- // 2. if the object is not found, returns the first selected sketch feature
- if (!aDeltaObject && thePresentations.size() > 0) {
- // there can be some highlighted objects, e.g. a result of boolean operation and a sketch point
- foreach (ModuleBase_ViewerPrs aPrs, thePresentations) {
- if (!aPrs.object())
- continue;
- FeaturePtr aFeature = ModelAPI_Feature::feature(aPrs.object());
- if (aFeature && aSketch->isSub(aFeature))
- aDeltaObject = aPrs.object();
- }
- }
- return aDeltaObject;
+ return aPnt2d->to3D(aC->pnt(), aX->dir(), aY);
}
std::shared_ptr<ModelAPI_Document> PartSet_Tools::document()
return ModelAPI_Session::get()->moduleDocument();
}
-std::shared_ptr<GeomDataAPI_Point2D> PartSet_Tools::getFeaturePoint(FeaturePtr theFeature,
+/*std::shared_ptr<GeomDataAPI_Point2D> PartSet_Tools::getFeaturePoint(FeaturePtr theFeature,
double theX, double theY)
{
std::shared_ptr<GeomAPI_Pnt2d> aClickedPoint = std::shared_ptr<GeomAPI_Pnt2d>(
new GeomAPI_Pnt2d(theX, theY));
std::list<std::shared_ptr<ModelAPI_Attribute> > anAttiributes =
- theFeature->data()->attributes(GeomDataAPI_Point2D::type());
+ theFeature->data()->attributes(GeomDataAPI_Point2D::typeId());
std::list<std::shared_ptr<ModelAPI_Attribute> >::const_iterator anIt = anAttiributes.begin(),
aLast = anAttiributes.end();
std::shared_ptr<GeomDataAPI_Point2D> aFPoint;
}
return aFPoint;
-}
+}*/
void PartSet_Tools::setFeatureValue(FeaturePtr theFeature, double theValue,
const std::string& theAttribute)
aFeature->execute();
}
-std::shared_ptr<GeomDataAPI_Point2D> PartSet_Tools::
+/*std::shared_ptr<GeomDataAPI_Point2D> PartSet_Tools::
findAttributePoint(CompositeFeaturePtr theSketch, double theX, double theY,
double theTolerance, const QList<FeaturePtr>& theIgnore)
{
for (int i = 0; i < theSketch->numberOfSubs(); i++) {
FeaturePtr aFeature = theSketch->subFeature(i);
if (!theIgnore.contains(aFeature)) {
- anAttiributes = aFeature->data()->attributes(GeomDataAPI_Point2D::type());
+ anAttiributes = aFeature->data()->attributes(GeomDataAPI_Point2D::typeId());
std::list<std::shared_ptr<ModelAPI_Attribute> >::const_iterator anIt;
for (anIt = anAttiributes.cbegin(); anIt != anAttiributes.cend(); ++anIt) {
}
}
return std::shared_ptr<GeomDataAPI_Point2D>();
-}
+}*/
void PartSet_Tools::setConstraints(CompositeFeaturePtr theSketch, FeaturePtr theFeature,
new GeomAPI_Pnt2d(theClickedX, theClickedY));
for (; anIt != aLast; anIt++) {
FeaturePtr aFeature = std::dynamic_pointer_cast<ModelAPI_Feature>(*anIt);
+ if (!aFeature.get() || theFeature == aFeature)
+ continue;
// find the given point in the feature attributes
- anAttiributes = aFeature->data()->attributes(GeomDataAPI_Point2D::type());
+ anAttiributes = aFeature->data()->attributes(GeomDataAPI_Point2D::typeId());
std::list<std::shared_ptr<ModelAPI_Attribute> >::const_iterator anIt = anAttiributes.begin(),
aLast = anAttiributes.end();
std::shared_ptr<GeomDataAPI_Point2D> aFPoint;
if (!theSketch || !thePoint2D)
return aPoint;
+ DataPtr aData = theSketch->data();
std::shared_ptr<GeomDataAPI_Point> aC = std::dynamic_pointer_cast<GeomDataAPI_Point>(
- theSketch->data()->attribute(SketchPlugin_Sketch::ORIGIN_ID()));
+ aData->attribute(SketchPlugin_Sketch::ORIGIN_ID()));
std::shared_ptr<GeomDataAPI_Dir> aX = std::dynamic_pointer_cast<GeomDataAPI_Dir>(
- theSketch->data()->attribute(SketchPlugin_Sketch::DIRX_ID()));
- std::shared_ptr<GeomDataAPI_Dir> aY = std::dynamic_pointer_cast<GeomDataAPI_Dir>(
- theSketch->data()->attribute(SketchPlugin_Sketch::DIRY_ID()));
+ aData->attribute(SketchPlugin_Sketch::DIRX_ID()));
+ std::shared_ptr<GeomDataAPI_Dir> aNorm = std::dynamic_pointer_cast<GeomDataAPI_Dir>(
+ aData->attribute(SketchPlugin_Sketch::NORM_ID()));
+ std::shared_ptr<GeomAPI_Dir> aY(new GeomAPI_Dir(aNorm->dir()->cross(aX->dir())));
- return thePoint2D->to3D(aC->pnt(), aX->dir(), aY->dir());
+ return thePoint2D->to3D(aC->pnt(), aX->dir(), aY);
}
-ResultPtr PartSet_Tools::createFixedObjectByExternal(const TopoDS_Shape& theShape,
- const ObjectPtr& theObject,
- CompositeFeaturePtr theSketch)
+ResultPtr PartSet_Tools::findFixedObjectByExternal(const TopoDS_Shape& theShape,
+ const ObjectPtr& theObject,
+ CompositeFeaturePtr theSketch)
{
+ ResultPtr aResult;
if (theShape.ShapeType() == TopAbs_EDGE) {
// Check that we already have such external edge
std::shared_ptr<GeomAPI_Edge> aInEdge = std::shared_ptr<GeomAPI_Edge>(new GeomAPI_Edge());
aInEdge->setImpl(new TopoDS_Shape(theShape));
- ResultPtr aResult = findExternalEdge(theSketch, aInEdge);
- if (aResult)
- return aResult;
+ aResult = findExternalEdge(theSketch, aInEdge);
+ }
+ if (theShape.ShapeType() == TopAbs_VERTEX) {
+ std::shared_ptr<GeomAPI_Vertex> aInVert = std::shared_ptr<GeomAPI_Vertex>(new GeomAPI_Vertex());
+ aInVert->setImpl(new TopoDS_Shape(theShape));
+ aResult = findExternalVertex(theSketch, aInVert);
+ }
+ return aResult;
+}
- // If not found then we have to create new
+ResultPtr PartSet_Tools::createFixedObjectByExternal(const TopoDS_Shape& theShape,
+ const ObjectPtr& theObject,
+ CompositeFeaturePtr theSketch,
+ const bool theTemporary)
+{
+ if (theShape.ShapeType() == TopAbs_EDGE) {
Standard_Real aStart, aEnd;
Handle(V3d_View) aNullView;
FeaturePtr aMyFeature;
// Create line
aMyFeature = theSketch->addFeature(SketchPlugin_Line::ID());
} else if (aAdaptor.GetType() == GeomAbs_Circle) {
- if (aAdaptor.IsClosed()) {
- // Create circle
- aMyFeature = theSketch->addFeature(SketchPlugin_Circle::ID());
- } else {
+ std::shared_ptr<GeomAPI_Edge> anEdge = std::shared_ptr<GeomAPI_Edge>(new GeomAPI_Edge);
+ anEdge->setImpl(new TopoDS_Shape(theShape));
+ if (anEdge->isArc()) {
// Create arc
aMyFeature = theSketch->addFeature(SketchPlugin_Arc::ID());
}
+ else {
+ // Create circle
+ aMyFeature = theSketch->addFeature(SketchPlugin_Circle::ID());
+ }
}
if (aMyFeature) {
DataPtr aData = aMyFeature->data();
AttributeSelectionPtr anAttr =
std::dynamic_pointer_cast<ModelAPI_AttributeSelection>
- (aData->attribute(SketchPlugin_Feature::EXTERNAL_ID()));
+ (aData->attribute(SketchPlugin_SketchEntity::EXTERNAL_ID()));
ResultPtr aRes = std::dynamic_pointer_cast<ModelAPI_Result>(theObject);
if (anAttr && aRes) {
anEdge->setImpl(new TopoDS_Shape(theShape));
anAttr->setValue(aRes, anEdge);
-
- aMyFeature->execute();
-
- // fix this edge
- FeaturePtr aFix = theSketch->addFeature(SketchPlugin_ConstraintRigid::ID());
- aFix->data()->refattr(SketchPlugin_Constraint::ENTITY_A())->
- setObject(aMyFeature->lastResult());
-
+ //if (!theTemporary) {
+ aMyFeature->execute();
+
+ // fix this edge
+ FeaturePtr aFix = theSketch->addFeature(SketchPlugin_ConstraintRigid::ID());
+ aFix->data()->refattr(SketchPlugin_Constraint::ENTITY_A())->
+ setObject(aMyFeature->lastResult());
+ //}
return aMyFeature->lastResult();
}
}
}
if (theShape.ShapeType() == TopAbs_VERTEX) {
- std::shared_ptr<GeomAPI_Vertex> aInVert = std::shared_ptr<GeomAPI_Vertex>(new GeomAPI_Vertex());
- aInVert->setImpl(new TopoDS_Shape(theShape));
- ResultPtr aResult = findExternalVertex(theSketch, aInVert);
- if (aResult)
- return aResult;
-
FeaturePtr aMyFeature = theSketch->addFeature(SketchPlugin_Point::ID());
if (aMyFeature) {
DataPtr aData = aMyFeature->data();
AttributeSelectionPtr anAttr =
std::dynamic_pointer_cast<ModelAPI_AttributeSelection>
- (aData->attribute(SketchPlugin_Feature::EXTERNAL_ID()));
+ (aData->attribute(SketchPlugin_SketchEntity::EXTERNAL_ID()));
ResultPtr aRes = std::dynamic_pointer_cast<ModelAPI_Result>(theObject);
if (anAttr && aRes) {
aVert->setImpl(new TopoDS_Shape(theShape));
anAttr->setValue(aRes, aVert);
- aMyFeature->execute();
-
- // fix this edge
- FeaturePtr aFix = theSketch->addFeature(SketchPlugin_ConstraintRigid::ID());
- aFix->data()->refattr(SketchPlugin_Constraint::ENTITY_A())->
- setObject(aMyFeature->lastResult());
-
+ //if (theTemporary) {
+ aMyFeature->execute();
+
+ // fix this edge
+ FeaturePtr aFix = theSketch->addFeature(SketchPlugin_ConstraintRigid::ID());
+ aFix->data()->refattr(SketchPlugin_Constraint::ENTITY_A())->
+ setObject(aMyFeature->lastResult());
+ //}
return aMyFeature->lastResult();
}
}
return aHasVertex;
}
+GeomShapePtr PartSet_Tools::findShapeBy2DPoint(const AttributePtr& theAttribute,
+ ModuleBase_IWorkshop* theWorkshop)
+{
+ // 1. find an attribute value in attribute reference attribute value
+ GeomShapePtr aShape;
+ AttributeRefAttrPtr aRefAttr =
+ std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(theAttribute);
+ if (aRefAttr) {
+ if (!aRefAttr->isObject()) {
+ AttributePtr theAttribute = aRefAttr->attr();
+ if (theAttribute.get()) {
+ XGUI_ModuleConnector* aConnector = dynamic_cast<XGUI_ModuleConnector*>(theWorkshop);
+ XGUI_Displayer* aDisplayer = aConnector->workshop()->displayer();
+
+ // 2. find visualized vertices of the attribute and if the attribute of the vertex is
+ // the same, return it
+ FeaturePtr anAttributeFeature = ModelAPI_Feature::feature(theAttribute->owner());
+ // 2.1 get visualized results of the feature
+ const std::list<ResultPtr>& aResList = anAttributeFeature->results();
+ std::list<ResultPtr>::const_iterator anIt = aResList.begin(), aLast = aResList.end();
+ for (; anIt != aLast; anIt++) {
+ AISObjectPtr aAISObj = aDisplayer->getAISObject(*anIt);
+ if (aAISObj.get() != NULL) {
+ Handle(AIS_InteractiveObject) anAISIO = aAISObj->impl<Handle(AIS_InteractiveObject)>();
+ // 2.2 find selected owners of a visualizedd object
+ SelectMgr_IndexedMapOfOwner aSelectedOwners;
+ aConnector->workshop()->selector()->selection()->entityOwners(anAISIO, aSelectedOwners);
+ for (Standard_Integer i = 1, n = aSelectedOwners.Extent(); i <= n; i++) {
+ Handle(SelectMgr_EntityOwner) anOwner = aSelectedOwners(i);
+ if (!anOwner.IsNull()) {
+ Handle(StdSelect_BRepOwner) aBRepOwner = Handle(StdSelect_BRepOwner)::DownCast(anOwner);
+ if (!aBRepOwner.IsNull() && aBRepOwner->HasShape()) {
+ const TopoDS_Shape& aBRepShape = aBRepOwner->Shape();
+ if (aBRepShape.ShapeType() == TopAbs_VERTEX) {
+ // 2.3 if the owner is vertex and an attribute of the vertex is equal to the initial
+ // attribute, returns the shape
+ PartSet_Module* aModule = dynamic_cast<PartSet_Module*>(theWorkshop->module());
+ PartSet_SketcherMgr* aSketchMgr = aModule->sketchMgr();
+ AttributePtr aPntAttr = PartSet_Tools::findAttributeBy2dPoint(anAttributeFeature,
+ aBRepShape, aSketchMgr->activeSketch());
+ if (aPntAttr.get() != NULL && aPntAttr == theAttribute) {
+ aShape = std::shared_ptr<GeomAPI_Shape>(new GeomAPI_Shape);
+ aShape->setImpl(new TopoDS_Shape(aBRepShape));
+ break;
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+ return aShape;
+}
+
+std::shared_ptr<GeomAPI_Pnt2d> PartSet_Tools::getPoint(std::shared_ptr<ModelAPI_Feature>& theFeature,
+ const std::string& theAttribute)
+{
+ std::shared_ptr<GeomDataAPI_Point2D> aPointAttr;
+
+ if (!theFeature->data())
+ return std::shared_ptr<GeomAPI_Pnt2d>();
+
+ FeaturePtr aFeature;
+ std::shared_ptr<ModelAPI_AttributeRefAttr> anAttr = std::dynamic_pointer_cast<
+ ModelAPI_AttributeRefAttr>(theFeature->data()->attribute(theAttribute));
+ if (!anAttr)
+ return std::shared_ptr<GeomAPI_Pnt2d>();
+
+ aFeature = ModelAPI_Feature::feature(anAttr->object());
+
+ if (aFeature && aFeature->getKind() == SketchPlugin_Point::ID())
+ aPointAttr = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
+ aFeature->data()->attribute(SketchPlugin_Point::COORD_ID()));
+
+ else if (anAttr->attr()) {
+ aPointAttr = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(anAttr->attr());
+ }
+ if (aPointAttr.get() != NULL)
+ return aPointAttr->pnt();
+ return std::shared_ptr<GeomAPI_Pnt2d>();
+}
+
+void PartSet_Tools::findCoincidences(FeaturePtr theStartCoin, QList<FeaturePtr>& theList,
+ std::string theAttr)
+{
+ AttributeRefAttrPtr aPnt = theStartCoin->refattr(theAttr);
+ if (!aPnt) return;
+ FeaturePtr aObj = ModelAPI_Feature::feature(aPnt->object());
+ if (!theList.contains(aObj)) {
+ std::shared_ptr<GeomAPI_Pnt2d> aOrig = getPoint(theStartCoin, theAttr);
+ if (aOrig.get() == NULL)
+ return;
+ theList.append(aObj);
+ const std::set<AttributePtr>& aRefsList = aObj->data()->refsToMe();
+ std::set<AttributePtr>::const_iterator aIt;
+ for (aIt = aRefsList.cbegin(); aIt != aRefsList.cend(); ++aIt) {
+ std::shared_ptr<ModelAPI_Attribute> aAttr = (*aIt);
+ FeaturePtr aConstrFeature = std::dynamic_pointer_cast<ModelAPI_Feature>(aAttr->owner());
+ if (aConstrFeature->getKind() == SketchPlugin_ConstraintCoincidence::ID()) {
+ std::shared_ptr<GeomAPI_Pnt2d> aPnt = getPoint(aConstrFeature, theAttr);
+ if (aPnt.get() && aOrig->isEqual(aPnt)) {
+ findCoincidences(aConstrFeature, theList, SketchPlugin_ConstraintCoincidence::ENTITY_A());
+ findCoincidences(aConstrFeature, theList, SketchPlugin_ConstraintCoincidence::ENTITY_B());
+ }
+ }
+ }
+ }
+}
+
AttributePtr PartSet_Tools::findAttributeBy2dPoint(ObjectPtr theObj,
const TopoDS_Shape theShape,
FeaturePtr theSketch)
// find the given point in the feature attributes
std::list<AttributePtr> anAttiributes =
- aFeature->data()->attributes(GeomDataAPI_Point2D::type());
+ aFeature->data()->attributes(GeomDataAPI_Point2D::typeId());
std::list<AttributePtr>::const_iterator anIt = anAttiributes.begin(),
aLast = anAttiributes.end();
for (; anIt != aLast && !anAttribute; anIt++) {