/// <summary>
/// Determines the coincident ends of the given edges and returns the junction's shape as IPoint
/// </summary>
/// <param name="featureA">One edge feature</param>
/// <param name="featureB">Another edge feature</param>
/// <returns>IPoint</returns>
public static ESRI.ArcGIS.Geometry.IPoint GetJunctionPoint(ESRI.ArcGIS.Geodatabase.IEdgeFeature featureA, ESRI.ArcGIS.Geodatabase.IEdgeFeature featureB)
{
#region Validation
if (null == featureA)
{
throw new ArgumentNullException("featureA");
}
if (null == featureB)
{
throw new ArgumentNullException("featureB");
}
#endregion
int aFromEid = featureA.FromJunctionEID;
int aToEid = featureA.ToJunctionEID;
int bFromEid = featureB.FromJunctionEID;
int bToEid = featureB.ToJunctionEID;
ESRI.ArcGIS.Geodatabase.IJunctionFeature junctionFt = null;
if (aFromEid == bFromEid || aFromEid == bToEid)
{
junctionFt = featureA.FromJunctionFeature;
}
else if (aToEid == bFromEid || aToEid == bToEid)
{
junctionFt = featureA.ToJunctionFeature;
}
if (null == junctionFt)
{
throw new Exception("Unable to find junction feature for provided edges.");
}
ESRI.ArcGIS.Geometry.IGeometry geometry = ((ESRI.ArcGIS.Geodatabase.IFeature)junctionFt).ShapeCopy;
if (geometry.GeometryType != ESRI.ArcGIS.Geometry.esriGeometryType.esriGeometryPoint)
{
throw new Exception("Junction feature's geometry is not a point.");
}
return(geometry as ESRI.ArcGIS.Geometry.IPoint);
}
/// <summary>
/// Gets all cables that are considered splicable to another cable at a given splice closure.
/// </summary>
/// <param name="cable">Cable to splice with</param>
/// <param name="spliceClosure">Splice Closure to splice at</param>
/// <returns>List of SpliceableCableWrapper</returns>
public List <SpliceableCableWrapper> GetSpliceableCables(FiberCableWrapper cable, SpliceClosureWrapper spliceClosure)
{
// At the time of this comment, splicable means they are connected in the geometric network
List <SpliceableCableWrapper> result = new List <SpliceableCableWrapper>();
if (null == cable)
{
throw new ArgumentNullException("cable");
}
if (null == spliceClosure)
{
throw new ArgumentNullException("spliceClosure");
}
int searchOid = cable.Feature.OID;
ESRI.ArcGIS.Geodatabase.IEdgeFeature cableFt = cable.Feature as ESRI.ArcGIS.Geodatabase.IEdgeFeature;
ESRI.ArcGIS.Carto.IFeatureLayer ftLayer = _hookHelper.FindFeatureLayer(ConfigUtil.FiberCableFtClassName);
int displayIdx = ftLayer.FeatureClass.FindField(ftLayer.DisplayField);
if (null != cableFt)
{
// We assume it is simple. Complex junctions are not supported for splicing cables
ESRI.ArcGIS.Geodatabase.ISimpleJunctionFeature junction = spliceClosure.Feature as ESRI.ArcGIS.Geodatabase.ISimpleJunctionFeature;
if (null != junction)
{
bool isAFromEnd = false; // would be in the case that junction.EID == cableFt.ToJunctionEID
if (junction.EID == cableFt.FromJunctionEID)
{
isAFromEnd = true;
}
else if (junction.EID != cableFt.ToJunctionEID)
{
// It isn't the from or the two? It shouldn't have been passed in as if it was coincident with the cable
return(result);
// throw new InvalidOperationException("Given splice closure is not the junction for the given cable.");
}
int edgeCount = junction.EdgeFeatureCount;
for (int i = 0; i < edgeCount; i++)
{
ESRI.ArcGIS.Geodatabase.IEdgeFeature connectedEdge = junction.get_EdgeFeature(i);
ESRI.ArcGIS.Geodatabase.IFeature feature = (ESRI.ArcGIS.Geodatabase.IFeature)connectedEdge;
ESRI.ArcGIS.Geodatabase.IDataset dataset = feature.Class as ESRI.ArcGIS.Geodatabase.IDataset;
string featureClassName = GdbUtils.ParseTableName(dataset);
if (0 == string.Compare(featureClassName, ConfigUtil.FiberCableFtClassName) &&
feature.OID != searchOid)
{
if (junction.EID == connectedEdge.FromJunctionEID)
{
result.Add(new SpliceableCableWrapper(feature, true, isAFromEnd, displayIdx));
}
else if (junction.EID == connectedEdge.ToJunctionEID)
{
result.Add(new SpliceableCableWrapper(feature, false, isAFromEnd, displayIdx));
}
}
}
}
}
return(result);
}