From 4eaa5b6a77868e74833700e717b6f0388bdabe92 Mon Sep 17 00:00:00 2001 From: mpv Date: Wed, 10 Oct 2018 10:37:02 +0300 Subject: [PATCH] Initial implementation of filter by neighbors --- src/Model/Model_AttributeSelection.cpp | 3 +- src/Selector/Selector_Selector.cpp | 338 ++++++++++++++++++++----- src/Selector/Selector_Selector.h | 15 +- 3 files changed, 290 insertions(+), 66 deletions(-) diff --git a/src/Model/Model_AttributeSelection.cpp b/src/Model/Model_AttributeSelection.cpp index c5f959489..316413de8 100644 --- a/src/Model/Model_AttributeSelection.cpp +++ b/src/Model/Model_AttributeSelection.cpp @@ -702,7 +702,8 @@ bool Model_AttributeSelection::update() } aResult = aSelector.Solve(scope()) == Standard_True; } else { - aResult = aSelector.solve(); + TopoDS_Shape aContextShape = aContext->shape()->impl(); + aResult = aSelector.solve(aContextShape); } aResult = setInvalidIfFalse(aSelLab, aResult); diff --git a/src/Selector/Selector_Selector.cpp b/src/Selector/Selector_Selector.cpp index 61de2fd44..c4b6539d1 100644 --- a/src/Selector/Selector_Selector.cpp +++ b/src/Selector/Selector_Selector.cpp @@ -34,6 +34,7 @@ #include #include +#include #include @@ -44,6 +45,8 @@ static const Standard_GUID kSHAPE_TYPE("864b3267-cb9d-4107-bf58-c3ce1775b171"); // reference attribute that contains the reference to labels where the "from" or "base" shapes // of selection are located static const Standard_GUID kBASE_ARRAY("7c515b1a-9549-493d-9946-a4933a22f45f"); +// array of the neighbor levels +static const Standard_GUID kLEVELS_ARRAY("ee4c4b45-e859-4e86-aa4f-6eac68e0ca1f"); Selector_Selector::Selector_Selector(TDF_Label theLab) : myLab(theLab) { @@ -56,35 +59,179 @@ TDF_Label Selector_Selector::label() // adds to theResult all labels that contain initial shapes for theValue located in theFinal static void findBases(Handle(TNaming_NamedShape) theFinal, const TopoDS_Shape& theValue, - TDF_LabelList& theResult) + bool aMustBeAtFinal, TDF_LabelList& theResult) { - for(TNaming_Iterator aThisIter(theFinal); aThisIter.More(); aThisIter.Next()) { - if (aThisIter.NewShape().IsSame(theValue)) { - const TopoDS_Shape& anOldShape = aThisIter.OldShape(); - // searching for all old shapes in this sequence of modification - TNaming_OldShapeIterator anOldIter(anOldShape, theFinal->Label()); - for(; anOldIter.More(); anOldIter.Next()) { - TNaming_Evolution anEvolution = anOldIter.NamedShape()->Evolution(); - if (anEvolution == TNaming_PRIMITIVE) { // found a good candidate, a base shape - // check that this is not in the results already - const TDF_Label aResult = anOldIter.NamedShape()->Label(); - TDF_LabelList::Iterator aResIter(theResult); - for(; aResIter.More(); aResIter.Next()) { - if (aResIter.Value().IsEqual(aResult)) - break; + TNaming_SameShapeIterator aLabIter(theValue, theFinal->Label()); + for(; aLabIter.More(); aLabIter.Next()) { + Handle(TNaming_NamedShape) aNS; + aLabIter.Label().FindAttribute(TNaming_NamedShape::GetID(), aNS); + if (aMustBeAtFinal && aNS != theFinal) + continue; // looking for old at the same final label only + TNaming_Evolution anEvolution = aNS->Evolution(); + if (anEvolution == TNaming_PRIMITIVE) { + // check that this is not in the results already + const TDF_Label aResult = aNS->Label(); + TDF_LabelList::Iterator aResIter(theResult); + for(; aResIter.More(); aResIter.Next()) { + if (aResIter.Value().IsEqual(aResult)) + break; + } + if (!aResIter.More()) // not found, so add this new + theResult.Append(aResult); + } + if (anEvolution == TNaming_GENERATED || anEvolution == TNaming_MODIFY) { + for(TNaming_Iterator aThisIter(aNS); aThisIter.More(); aThisIter.Next()) { + if (aThisIter.NewShape().IsSame(theValue)) { + // continue recursively, null NS means that any NS are ok + findBases(theFinal, aThisIter.OldShape(), false, theResult); + } + } + } + } +} + +// returns the sub-shapes of theSubType which belong to all theShapes (so, common or intersection) +static void commonShapes(const TopoDS_ListOfShape& theShapes, TopAbs_ShapeEnum theSubType, + TopoDS_ListOfShape& theResults) +{ + TopoDS_ListOfShape::iterator aSubSel = theShapes.begin(); + for(; aSubSel != theShapes.end(); aSubSel++) { + TopTools_MapOfShape aCurrentMap; + for(TopExp_Explorer anExp(*aSubSel, theSubType); anExp.More(); anExp.Next()) { + if (aCurrentMap.Add(anExp.Current()) && aSubSel == theShapes.begin()) + theResults.Append(anExp.Current()); + } + if (aSubSel != theShapes.begin()) { // remove from common shapes not in aCurrentMap + for(TopoDS_ListOfShape::Iterator aComIter(theResults); aComIter.More(); ) { + if (aCurrentMap.Contains(aComIter.Value())) + aComIter.Next(); + else + theResults.Remove(aComIter); + } + } + } +} + +/// Searches neighbor of theLevel of neighborhood to theValue in theContex +static void findNeighbors(const TopoDS_Shape theContext, const TopoDS_Shape theValue, + const int theLevel, TopTools_MapOfShape& theResult) +{ + TopAbs_ShapeEnum aConnectorType = TopAbs_VERTEX; // type of the connector sub-shapes + if (theValue.ShapeType() == TopAbs_FACE) + aConnectorType = TopAbs_EDGE; + TopTools_MapOfShape aNBConnectors; // connector shapes that already belong to neighbors + for(TopExp_Explorer aValExp(theValue, aConnectorType); aValExp.More(); aValExp.Next()) { + aNBConnectors.Add(aValExp.Current()); + } + + for(int aLevel = 1; aLevel <= theLevel; aLevel++) { + TopoDS_ListOfShape aGoodCandidates; + TopExp_Explorer aCandidate(theContext, theValue.ShapeType()); + for(; aCandidate.More(); aCandidate.Next()) { + TopExp_Explorer aCandConnector(aCandidate.Current(), aConnectorType); + for(; aCandConnector.More(); aCandConnector.Next()) { + if (aNBConnectors.Contains(aCandConnector.Current())) // candidate is neighbor + break; + } + if (aCandConnector.More()) { + if (aLevel == theLevel) { // add a NB into result: it is connected to other neighbors + theResult.Add(aCandidate.Current()); + } else { // add to the NB of the current level + aGoodCandidates.Append(aCandidate.Current()); + } + } + } + if (aLevel != theLevel) { // good candidates are added to neighbor of this level by connectors + for(TopoDS_ListOfShape::Iterator aGood(aGoodCandidates); aGood.More(); aGood.Next()) { + TopExp_Explorer aGoodConnector(aGood.Value(), aConnectorType); + for(; aGoodConnector.More(); aGoodConnector.Next()) { + aNBConnectors.Add(aGoodConnector.Current()); + } + } + } + } +} + +/// Searches the neighbor shape by neighbors defined in theNB in theContext shape +static const TopoDS_Shape findNeighbor(const TopoDS_Shape theContext, + const std::list >& theNB) +{ + // searching for neighbors with minimum level + int aMinLevel = 0; + std::list >::const_iterator aNBIter = theNB.cbegin(); + for(; aNBIter != theNB.cend(); aNBIter++) { + if (aMinLevel == 0 || aNBIter->second < aMinLevel) { + aMinLevel = aNBIter->second; + } + } + // collect all neighbors which are neighbors of sub-shapes with minimum level + bool aFirst = true; + TopoDS_ListOfShape aMatches; + for(aNBIter = theNB.cbegin(); aNBIter != theNB.cend(); aNBIter++) { + if (aNBIter->second == aMinLevel) { + TopTools_MapOfShape aThisNBs; + findNeighbors(theContext, aNBIter->first, aMinLevel, aThisNBs); + // aMatches must contain common part of all NBs lists + for(TopTools_MapOfShape::Iterator aThisNB(aThisNBs); aThisNB.More(); aThisNB.Next()) { + if (aFirst) { + aMatches.Append(aThisNB.Value()); + } else { + // remove all in aMatches which are not in this NBs + for(TopoDS_ListOfShape::Iterator aMatch(aMatches); aMatch.More(); ) { + if (aThisNBs.Contains(aMatch.Value())) { + aMatch.Next(); + } else { + aMatches.Remove(aMatch); + } } - if (!aResIter.More()) // not found, so add this new - theResult.Append(aResult); - } else if (anEvolution == TNaming_GENERATED || anEvolution == TNaming_MODIFY) { - // continue recursively - findBases(anOldIter.NamedShape(), anOldShape, theResult); } } } } + if (aMatches.IsEmpty()) + return TopoDS_Shape(); // not found any candidate + if (aMatches.Extent() == 1) + return aMatches.First(); // already found good candidate + // iterate all matches to find by other (higher level) neighbors the best candidate + TopoDS_Shape aGoodCandidate; + for(TopoDS_ListOfShape::Iterator aCandidate(aMatches); aCandidate.More(); aCandidate.Next()) { + bool aValidCadidate = true; + for(int aLevel = aMinLevel + 1; true; aLevel++) { + bool aFooundHigherLevel = false; + TopoDS_ListOfShape aLevelNBs; + for(aNBIter = theNB.cbegin(); aNBIter != theNB.cend(); aNBIter++) { + if (aNBIter->second == aLevel) + aLevelNBs.Append(aNBIter->first); + else if (aNBIter->second >= aLevel) + aFooundHigherLevel = true; + } + if (!aFooundHigherLevel && aLevelNBs.IsEmpty()) { // iterated all, so, good candidate + if (aGoodCandidate.IsNull()) { + aGoodCandidate = aCandidate.Value(); + } else { // too many good candidates + return TopoDS_Shape(); + } + } + if (!aLevelNBs.IsEmpty()) { + TopTools_MapOfShape aNBsOfCandidate; + findNeighbors(theContext, aCandidate.Value(), aLevel, aNBsOfCandidate); + // check all stored neighbors are in the map of real neighbors + for(TopoDS_ListOfShape::Iterator aLevIter(aLevelNBs); aLevIter.More(); aLevIter.Next()) { + if (!aNBsOfCandidate.Contains(aLevIter.Value())) { + aValidCadidate = false; + break; + } + } + } + if (!aValidCadidate) // candidate is not valid, break the checking + break; + } + } + return aGoodCandidate; } -bool Selector_Selector::select(const TopoDS_Shape theContext, const TopoDS_Shape theValue) +bool Selector_Selector::select(const TopoDS_Shape theContext, const TopoDS_Shape theValue, + const bool theUseNeighbors) { if (theValue.IsNull() || theContext.IsNull()) return false; @@ -110,6 +257,7 @@ bool Selector_Selector::select(const TopoDS_Shape theContext, const TopoDS_Shape if (aSelectionType == TopAbs_VERTEX) aSelectionType = TopAbs_EDGE; else if (aSelectionType == TopAbs_EDGE) aSelectionType = TopAbs_FACE; TopTools_MapOfShape anIntersectors; // shapes of aSelectionType that contain theValue + TopoDS_ListOfShape anIntList; // same as anIntersectors for(TopExp_Explorer aSelExp(theContext, aSelectionType); aSelExp.More(); aSelExp.Next()) { TopExp_Explorer aSubExp(aSelExp.Current(), theValue.ShapeType()); for(; aSubExp.More(); aSubExp.Next()) { @@ -119,25 +267,59 @@ bool Selector_Selector::select(const TopoDS_Shape theContext, const TopoDS_Shape } } } - //TODO: check if intersectors produce several subs, try to remove one of the intersector + // check that solution is only one + TopoDS_ListOfShape aCommon; + commonShapes(anIntList, theValue.ShapeType(), aCommon); + if (aCommon.Extent() == 1 && aCommon.First().IsSame(theValue)) { + // name the intersectors + std::list aSubSelList; + TopTools_MapOfShape::Iterator anInt(anIntersectors); + for (; anInt.More(); anInt.Next()) { + if (!selectBySubSelector(theContext, anInt.Value())) { + break; // if some selector is failed, stop and search another solution + } + } + if (!anInt.More()) { // all intersectors were correctly named + myType = SELTYPE_INTERSECT; + return true; + } + } + } - //TODO: check that solution is only one + if (!theUseNeighbors) + return false; - // name the intersectors - std::list aSubSelList; - TopTools_MapOfShape::Iterator anInt(anIntersectors); - for (; anInt.More(); anInt.Next()) { - if (!selectBySubSelector(theContext, anInt.Value())) { - break; // if some selector is failed, stop and search another solution + // searching by neighbours + std::list > aNBs; /// neighbor sub-shape -> level of neighborhood + for(int aLevel = 1; true; aLevel++) { + TopTools_MapOfShape aNewNB; + findNeighbors(theContext, theValue, aLevel, aNewNB); + if (aNewNB.Extent() == 0) { // there are no neighbors of the given level, stop iteration + break; + } + // check which can be named correctly, without by neighbors type + for(TopTools_MapOfShape::Iterator aNBIter(aNewNB); aNBIter.More(); ) { + Selector_Selector aSelector(myLab.FindChild(1)); + if (aSelector.select(theContext, aNBIter.Value(), false)) { // add to the list of good NBs + aNBs.push_back(std::pair(aNBIter.Value(), aLevel)); } + aNewNB.Remove(aNBIter.Key()); + aNBIter.Initialize(aNewNB); } - if (!anInt.More()) { // all intersectors were correctly named - myType = SELTYPE_INTERSECT; + TopoDS_Shape aResult = findNeighbor(theContext, aNBs); + if (!aResult.IsNull() && aResult.IsSame(theValue)) { + std::list >::iterator aNBIter = aNBs.begin(); + for(; aNBIter != aNBs.end(); aNBIter++) { + if (!selectBySubSelector(theContext, aNBIter->first)) { + return false; // something is wrong because before this selection was ok + } + myNBLevel.push_back(aNBIter->second); + + } + myType = SELTYPE_FILTER_BY_NEIGHBOR; return true; } } - - // TODO: searching by neighbours return false; } // searching for the base shapes of the value @@ -192,10 +374,12 @@ bool Selector_Selector::select(const TopoDS_Shape theContext, const TopoDS_Shape if (!aModifList.IsEmpty()) { // searching for all the base shapes of this modification - findBases(aModifList.First(), theValue, myBases); - myFinal = aModifList.First()->Label(); - myType = SELTYPE_MODIFICATION; - return !myBases.IsEmpty(); + findBases(aModifList.First(), theValue, true, myBases); + if (!myBases.IsEmpty()) { + myFinal = aModifList.First()->Label(); + myType = SELTYPE_MODIFICATION; + return !myBases.IsEmpty(); + } } // not found a good result @@ -233,6 +417,21 @@ void Selector_Selector::store() anArray->SetValue(myBases.Extent(), myFinal); // final is in the end of array break; } + case SELTYPE_FILTER_BY_NEIGHBOR: { + TDataStd_Integer::Set(myLab, kSHAPE_TYPE, (int)myShapeType); + // store numbers of levels corresponded to the neighbors in sub-selectors + Handle(TDataStd_IntegerArray) anArray = + TDataStd_IntegerArray::Set(myLab, kLEVELS_ARRAY, 0, int(myNBLevel.size()) - 1); + std::list::iterator aLevel = myNBLevel.begin(); + for(int anIndex = 0; aLevel != myNBLevel.end(); aLevel++, anIndex++) { + anArray->SetValue(anIndex, *aLevel); + } + // store all sub-selectors + std::list::iterator aSubSel = mySubSelList.begin(); + for(; aSubSel != mySubSelList.end(); aSubSel++) { + aSubSel->store(); + } + } default: { // unknown case break; } @@ -282,6 +481,28 @@ bool Selector_Selector::restore() } return false; } + case SELTYPE_FILTER_BY_NEIGHBOR: { + Handle(TDataStd_Integer) aShapeTypeAttr; + if (!myLab.FindAttribute(kSHAPE_TYPE, aShapeTypeAttr)) + return false; + myShapeType = TopAbs_ShapeEnum(aShapeTypeAttr->Get()); + // restore sub-selectors + bool aSubResult = true; + mySubSelList.clear(); + for(TDF_ChildIDIterator aSub(myLab, kSEL_TYPE, false); aSub.More(); aSub.Next()) { + mySubSelList.push_back(Selector_Selector(aSub.Value()->Label())); + if (!mySubSelList.back().restore()) + aSubResult = false; + } + // restore levels indices + Handle(TDataStd_IntegerArray) anArray; + if (!myLab.FindAttribute(kLEVELS_ARRAY, anArray)) + return false; + for(int anIndex = 0; anIndex <= anArray->Upper(); anIndex++) { + myNBLevel.push_back(anArray->Value(anIndex)); + } + return true; + } default: { // unknown case } } @@ -305,7 +526,7 @@ static void findFinals(const TopoDS_Shape& theBase, const TDF_Label& theFinal, } -bool Selector_Selector::solve() +bool Selector_Selector::solve(const TopoDS_Shape& theContext) { TopoDS_Shape aResult; // null if invalid switch(myType) { @@ -339,7 +560,7 @@ bool Selector_Selector::solve() } std::list::iterator aSubSel = mySubSelList.begin(); for(; aSubSel != mySubSelList.end(); aSubSel++) { - if (!aSubSel->solve()) { + if (!aSubSel->solve(theContext)) { return false; } aBuilder.Add(aResult, aSubSel->value()); @@ -347,27 +568,16 @@ bool Selector_Selector::solve() break; } case SELTYPE_INTERSECT: { - TopoDS_ListOfShape aCommon; // common sub shapes in each sub-selector (a result) + TopoDS_ListOfShape aSubSelectorShapes; std::list::iterator aSubSel = mySubSelList.begin(); for(; aSubSel != mySubSelList.end(); aSubSel++) { - if (!aSubSel->solve()) { + if (!aSubSel->solve(theContext)) { return false; } - TopoDS_Shape anArg = aSubSel->value(); - TopTools_MapOfShape aCurrentMap; - for(TopExp_Explorer anExp(anArg, myShapeType); anExp.More(); anExp.Next()) { - if (aCurrentMap.Add(anExp.Current()) && aSubSel == mySubSelList.begin()) - aCommon.Append(anExp.Current()); - } - if (aSubSel != mySubSelList.begin()) { // remove from common shapes not in aCurrentMap - for(TopoDS_ListOfShape::Iterator aComIter(aCommon); aComIter.More(); ) { - if (aCurrentMap.Contains(aComIter.Value())) - aComIter.Next(); - else - aCommon.Remove(aComIter); - } - } + aSubSelectorShapes.Append(aSubSel->value()); } + TopoDS_ListOfShape aCommon; // common sub shapes in each sub-selector (a result) + commonShapes(aSubSelectorShapes, myShapeType, aCommon); if (aCommon.Extent() != 1) return false; aResult = aCommon.First(); @@ -381,8 +591,7 @@ bool Selector_Selector::solve() } case SELTYPE_MODIFICATION: { TopoDS_ListOfShape aFinalsCommon; // final shapes presented in all results from bases - TDF_LabelList::Iterator aBase(myBases); - for(; aBase.More(); aBase.Value()) { + for(TDF_LabelList::Iterator aBase(myBases); aBase.More(); aBase.Next()) { TopTools_MapOfShape aFinals; for(TNaming_Iterator aBaseShape(aBase.Value()); aBaseShape.More(); aBaseShape.Next()) findFinals(aBaseShape.NewShape(), myFinal, aFinals); @@ -392,8 +601,7 @@ bool Selector_Selector::solve() aFinalsCommon.Append(aFinal.Key()); } } else { // keep only shapes presented in both lists - TopoDS_ListOfShape::Iterator aCommon(aFinalsCommon); - for(; aCommon.More(); aCommon.Next()) { + for(TopoDS_ListOfShape::Iterator aCommon(aFinalsCommon); aCommon.More(); ) { if (aFinals.Contains(aCommon.Value())) { aCommon.Next(); } else { // common is not found, remove it @@ -406,6 +614,18 @@ bool Selector_Selector::solve() if (aFinalsCommon.Extent() == 1) // only in this case result is valid: found only one shape aResult = aFinalsCommon.First(); } + case SELTYPE_FILTER_BY_NEIGHBOR: { + std::list > aNBs; /// neighbor sub-shape -> level of neighborhood + std::list::iterator aLevel = myNBLevel.begin(); + std::list::iterator aSubSel = mySubSelList.begin(); + for(; aSubSel != mySubSelList.end(); aSubSel++, aLevel++) { + if (!aSubSel->solve(theContext)) { + return false; + } + aNBs.push_back(std::pair(aSubSel->value(), *aLevel)); + } + aResult = findNeighbor(theContext, aNBs); + } default: { // unknown case } } diff --git a/src/Selector/Selector_Selector.h b/src/Selector/Selector_Selector.h index 7a9cdeda5..225ab131f 100644 --- a/src/Selector/Selector_Selector.h +++ b/src/Selector/Selector_Selector.h @@ -26,7 +26,6 @@ #include #include #include - #include /**\class Selector_Selector @@ -43,15 +42,18 @@ class Selector_Selector SELTYPE_CONTAINER, ///< just a container of sub-elements, keeps the shape type of container SELTYPE_INTERSECT, ///< sub-shape is intersection of higher level objects SELTYPE_PRIMITIVE, ///< sub-shape found as a primitive on some label - SELTYPE_MODIFICATION, + SELTYPE_MODIFICATION, ///< modification of base shapes to the final label + SELTYPE_FILTER_BY_NEIGHBOR, ///< identification by neighbor shapes in context }; Selector_Type myType; ///< Type of this selector. - TopAbs_ShapeEnum myShapeType; ///< type of this shape: container or result of intersection - std::list mySubSelList; // list of sub-selectors if needed + TopAbs_ShapeEnum myShapeType; ///< type of this shape: in container, intersection or neighbors + std::list mySubSelList; ///< list of sub-selectors if needed TDF_Label myFinal; ///< final label of the primitive or generation, where the value is TDF_LabelList myBases; ///< initial labels that contain shapes that produce the modification + std::list myNBLevel; ///< list of integers corresponding to subsellist neighborhood level + TDF_Label myLab; ///< main label where selector is performed public: @@ -62,7 +64,8 @@ class Selector_Selector /// Initializes the selector structure on the label. /// Stores the name data to restore after modification. - SELECTOR_EXPORT bool select(const TopoDS_Shape theContext, const TopoDS_Shape theValue); + SELECTOR_EXPORT bool select(const TopoDS_Shape theContext, const TopoDS_Shape theValue, + const bool theUseNeighbors = false); /// Stores the name to the label and sub-labels tree SELECTOR_EXPORT void store(); @@ -72,7 +75,7 @@ class Selector_Selector SELECTOR_EXPORT bool restore(); /// Updates the current shape by the stored topological name - SELECTOR_EXPORT bool solve(); + SELECTOR_EXPORT bool solve(const TopoDS_Shape& theContext); /// Returns the current sub-shape value (null if can not resolve) SELECTOR_EXPORT TopoDS_Shape value(); -- 2.39.2