// Return an iterator referring to edge (SrcNId, DstNId) in the graph.
TUNGraph::TEdgeI TUNGraph::GetEI(const int& SrcNId, const int& DstNId) const {
const int MnNId = TMath::Mn(SrcNId, DstNId);
const int MxNId = TMath::Mx(SrcNId, DstNId);
const TNodeI SrcNI = GetNI(MnNId);
const int NodeN = SrcNI.NodeHI.GetDat().NIdV.SearchBin(MxNId);
IAssert(NodeN != -1);
return TEdgeI(SrcNI, EndNI(), NodeN);
}
TBPGraph::TEdgeI TBPGraph::GetEI(const int& LeftNId, const int& RightNId) const {
const bool IsLL = IsLNode(LeftNId), IsLR = IsRNode(LeftNId);
const bool IsRL = IsLNode(RightNId), IsRR = IsRNode(RightNId);
IAssertR((IsLL||IsLR)&&(IsRL||IsRR), TStr::Fmt("%d or %d is not a node.", LeftNId, RightNId).CStr());
IAssertR(LeftNId!=RightNId, "No self-edges are allowed.");
IAssertR((IsLL&&!IsLR&&!IsRL&&IsRR)||(!IsLL&&IsLR&&IsRL&&!IsRR), "One node should be on the 'left' and the other on the 'right'.");
const int LNId = IsLL ? LeftNId : RightNId; // the real left node
const int RNId = IsLL ? RightNId : LeftNId; // the real right node
const TNodeI SrcNI = GetNI(LNId);
const int NodeN = SrcNI.LeftHI.GetDat().NIdV.SearchBin(RNId);
IAssertR(NodeN != -1, "Right edge endpoint does not exists!");
return TEdgeI(SrcNI, EndNI(), NodeN);
}
TMultimodalGraphImplB::TEdgeI TMultimodalGraphImplB::GetEI(const TPair<TInt,TInt>& SrcNId, const TPair<TInt,TInt>& DstNId) const {
TNodeI CurNode = TNodeI(NodeToModeMapping.GetI(SrcNId.GetVal2()), &Graphs, &NodeToModeMapping);
TIntV AdjacentModes = TIntV();
CurNode.GetAdjacentModes(AdjacentModes);
TPair<TInt,TInt> ModeIdsKey = GetModeIdsKey(SrcNId.GetVal1(), DstNId.GetVal1());
int CurAdjacentMode = 0;
for (int i=0; i<AdjacentModes.Len();i++) {
if (AdjacentModes.GetDat(i) == DstNId.GetVal1()) {
CurAdjacentMode=i;
break;
}
}
return TEdgeI(CurNode, EndNI(), Graphs.GetDat(ModeIdsKey).GetEI(SrcNId.GetVal2(), DstNId.GetVal2()).GetCurEdge(), AdjacentModes, CurAdjacentMode);
}
TNGraph::TEdgeI TNGraph::GetEI(const int& SrcNId, const int& DstNId) const {
const TNodeI SrcNI = GetNI(SrcNId);
const int NodeN = SrcNI.NodeHI.GetDat().OutNIdV.SearchBin(DstNId);
IAssert(NodeN != -1);
return TEdgeI(SrcNI, EndNI(), NodeN);
}