public void AddEdgeFeature(int fcId, IFeature feature, bool oneWay, Hashtable weights, bool useWithComplexEdges)
{
if (feature == null)
{
return;
}
NetworkEdges edges = null;
if (feature.Shape is IPolyline)
{
edges = new NetworkEdges((IPolyline)feature.Shape);
}
if (edges == null)
{
return;
}
foreach (NetworkEdge edge in edges)
{
edge.FeatureclassId = fcId;
edge.FeatureId = feature.OID;
edge.OneWay = oneWay;
edge.UseWithComplexEdges = useWithComplexEdges;
edge.Weights = weights;
edge.FromNodeIndex = _nodes.Add(edge.FromPoint, _tolerance);
edge.ToNodeIndex = _nodes.Add(edge.ToPoint, _tolerance);
_edges.Add(edge);
}
}
public NetworkBuilder(IEnvelope bounds, double tolerance)
{
if (bounds == null)
{
bounds = new Envelope();
}
_nodes = new NetworkNodes(bounds);
_edges = new NetworkEdges(bounds);
_tolerance = tolerance;
}
public NetworkEdges Collect(IEnvelope env)
{
NetworkEdges edges = new NetworkEdges();
if (_gridArray != null)
{
foreach (List <NetworkEdge> e in _gridArray.Collect(env))
{
edges.AddRange(e);
}
}
return(edges);
}
public NetworkEdges SelectTo(int toNodeIndex)
{
NetworkEdges edges = new NetworkEdges();
foreach (NetworkEdge edge in this)
{
if (edge.ToNodeIndex == toNodeIndex)
{
edges.Add(edge);
}
}
edges.Sort(new SortFromNodeIndex());
return(edges);
}
public EdgeCursor(NetworkEdges edges)
{
_edges = edges;
}
public bool SplitToComplexEdges(NetworkNode node)
{
if (node == null || node.Point == null)
{
return(false);
}
Envelope env = new Envelope(node.Point.X - _tolerance, node.Point.Y - _tolerance,
node.Point.X + _tolerance, node.Point.Y + _tolerance);
NetworkEdges edges = _edges.Collect(env);
foreach (NetworkEdge edge in edges)
{
if (edge.FromNodeIndex == node.Id || edge.ToNodeIndex == node.Id)
{
continue;
}
double dist, stat;
IPoint snapped = SpatialAlgorithms.Algorithm.Point2PathDistance(edge.Path, node.Point, out dist, out stat);
if (snapped != null)
{
if (dist <= _tolerance)
{
Polyline pLine = new Polyline(edge.Path);
Polyline p1 = SpatialAlgorithms.Algorithm.PolylineSplit(pLine, 0, stat);
Polyline p2 = SpatialAlgorithms.Algorithm.PolylineSplit(pLine, stat, double.MaxValue);
if (p1.PathCount != 1 ||
p2.PathCount != 1)
{
continue;
}
// Edge bekommt neue Geometrie
edge.Path = p1[0];
edge.Length = edge.GeoLength = p1[0].Length;
// Edge bekommt neuen Zielknoten
int toNodeIndex = edge.ToNodeIndex;
edge.ToNodeIndex = node.Id;
NetworkEdge edge2 = new NetworkEdge();
edge2.Path = p2[0];
edge2.Length = edge2.GeoLength = p2[0].Length;
edge2.FeatureclassId = edge.FeatureclassId;
edge2.FeatureId = edge.FeatureId;
edge2.OneWay = edge.OneWay;
edge2.Weights = edge.Weights;
edge.UseWithComplexEdges = edge2.UseWithComplexEdges = true; // edge.Bounds neu berechnen
edge.IsComplex = edge2.IsComplex = true;
// Edge2 NodeIds setzen
edge2.FromNodeIndex = node.Id;
edge2.ToNodeIndex = toNodeIndex;
_edges.Add(edge2);
}
}
}
return(false);
}
