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New auxiliary method

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This commit is contained in:
Dennis Luxen 2010-09-14 16:40:11 +00:00
parent 43bbf953c1
commit 94c8c61a05
1 changed files with 25 additions and 1 deletions
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24
Contractor/SearchEngine.h
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@ -170,6 +170,30 @@ public:
return _upperbound/10;
}
unsigned int ComputeDistanceBetweenNodes(NodeID start, NodeID target)
{
_Heap * _forwardHeap = new _Heap(_graph->GetNumberOfNodes());
_Heap * _backwardHeap = new _Heap(_graph->GetNumberOfNodes());
NodeID middle = ( NodeID ) 0;
unsigned int _upperbound = std::numeric_limits<unsigned int>::max();
_forwardHeap->Insert(start, 0, start);
_backwardHeap->Insert(target, 0, target);
while(_forwardHeap->Size() + _backwardHeap->Size() > 0)
{
if ( _forwardHeap->Size() > 0 ) {
_RoutingStep( _forwardHeap, _backwardHeap, true, &middle, &_upperbound );
}
if ( _backwardHeap->Size() > 0 ) {
_RoutingStep( _backwardHeap, _forwardHeap, false, &middle, &_upperbound );
}
}
delete _forwardHeap;
delete _backwardHeap;
return _upperbound;
}
inline unsigned int findNearestNodeForLatLon(const _Coordinate& coord, _Coordinate& result) const
{
nodeHelpDesk->findNearestNodeIDForLatLon( coord, result );