/// <summary>
/// Determines whether the specified network element corresponds to the required generic junction feature class.
/// </summary>
/// <param name="junctionEID">The junction EID.</param>
/// <returns>
/// <c>true</c> if the specified network element corresponds to the required generic junction feature class; otherwise,
/// <c>false</c>.
/// </returns>
protected bool IsGenericJunction(int junctionEID)
{
if (_JunctionsClassID < 0)
{
// Determine the generic junction class ID.
IFeatureClassContainer container = (IFeatureClassContainer)this.GeometricNetwork;
IEnumFeatureClass enumClasses = container.Classes;
enumClasses.Reset();
// Iterate through all of the classes that participate in the network.
IFeatureClass networkClass;
while ((networkClass = enumClasses.Next()) != null)
{
if (this.IsGenericJunction(networkClass))
{
_JunctionsClassID = networkClass.ObjectClassID;
break;
}
}
}
// Determine the class identifier for the element.
IEIDInfo eidInfo = this.GetEIDInfo(junctionEID, esriElementType.esriETJunction);
// When the class ID equals the generic junction.
return(eidInfo.Feature.Class.ObjectClassID == _JunctionsClassID);
}
private void method_6(IGeometricNetwork geometricNetwork)
{
INetwork network = geometricNetwork.Network;
IUtilityNetwork utilityNetwork = (IUtilityNetwork)network;
IEnumNetEID enumNetEID = network.CreateNetBrowser((esriElementType)2);
IEIDHelper eIDHelperClass = new EIDHelper();
eIDHelperClass.GeometricNetwork = (geometricNetwork);
eIDHelperClass.DisplayEnvelope = (null);
eIDHelperClass.OutputSpatialReference = (null);
eIDHelperClass.ReturnFeatures = (false);
eIDHelperClass.ReturnGeometries = (true);
eIDHelperClass.PartialComplexEdgeGeometry = (true);
IEnumEIDInfo enumEIDInfo = eIDHelperClass.CreateEnumEIDInfo(enumNetEID);
enumEIDInfo.Reset();
long num = (long)enumEIDInfo.Count;
int num2 = 0;
while ((long)num2 < num)
{
IEIDInfo iEIDInfo = enumEIDInfo.Next();
int eID = iEIDInfo.EID;
IGeometry geometry = iEIDInfo.Geometry;
esriFlowDirection esriFlowDirection = this.method_7(geometry);
utilityNetwork.SetFlowDirection(eID, esriFlowDirection);
num2++;
}
}
/// <summary>
/// Returns the network element information for the specified <paramref name="eid" />.
/// </summary>
/// <param name="eid">The eid.</param>
/// <param name="elementType">Type of the element.</param>
/// <returns>Returns a <see cref="IEIDInfo" /> representing the network element information</returns>
protected IEIDInfo GetEIDInfo(int eid, esriElementType elementType)
{
if (elementType == esriElementType.esriETEdge)
{
if (_EdgesByEID.ContainsKey(eid))
{
return(_EdgesByEID[eid]);
}
}
else if (elementType == esriElementType.esriETJunction)
{
if (_JunctionsByEID.ContainsKey(eid))
{
return(_JunctionsByEID[eid]);
}
}
IEIDInfo eidInfo = this.GeometricNetwork.GetEIDInfo(eid, elementType);
if (elementType == esriElementType.esriETEdge)
{
_EdgesByEID.Add(eid, eidInfo);
}
else if (elementType == esriElementType.esriETJunction)
{
_JunctionsByEID.Add(eid, eidInfo);
}
return(eidInfo);
}
/// <summary>
/// 最短路径分析
/// </summary>
/// <param name="pMap"></param>
/// <param name="pGeometricNet"></param>
/// <param name="pCollection"></param>
/// <param name="weightName"></param>
/// <param name="pDisc"></param>
/// <returns></returns>
public static IPolyline DistanceFun(IMap pMap, IGeometricNetwork pGeometricNet, IPointCollection pCollection, string weightName, double pDisc)
{
//几何网络分析接口
ITraceFlowSolverGEN pTraceFlowGen = new TraceFlowSolverClass() as ITraceFlowSolverGEN;
INetSolver pNetSolver = pTraceFlowGen as INetSolver;
//获取网络
INetwork pNetwork = pGeometricNet.Network;
//设置该网络为几何分析处理网络
pNetSolver.SourceNetwork = pNetwork;
//网络元素
INetElements pNetElements = pNetwork as INetElements;
//根据输入点建立旗帜数组
IJunctionFlag[] pJunctionFlags = GetJunctionFlags(pMap, pGeometricNet, pCollection, pDisc);
//将旗帜数组添加到处理类中
pTraceFlowGen.PutJunctionOrigins(ref pJunctionFlags);
//设置边线的权重 可以考虑使用点权重
SetWeight(weightName, pTraceFlowGen, pNetwork);
//获取边线和交汇点的集合
IEnumNetEID junctionEIDs;
IEnumNetEID netEIDS;
object[] pRec = new object[pCollection.PointCount - 1];
pTraceFlowGen.FindPath(esriFlowMethod.esriFMConnected, esriShortestPathObjFn.esriSPObjFnMinSum, out junctionEIDs, out netEIDS, pCollection.PointCount - 1, ref pRec);
//获取最短路径
IPolyline pPolyline = new PolylineClass();
IGeometryCollection pGeometryCollection = pPolyline as IGeometryCollection;
ISpatialReference pSpatialReference = pMap.SpatialReference;
IEIDHelper pEIDHelper = new EIDHelperClass();
pEIDHelper.GeometricNetwork = pGeometricNet;
pEIDHelper.OutputSpatialReference = pSpatialReference;
pEIDHelper.ReturnGeometries = true;
IEnumEIDInfo pEnumEIDInfo = pEIDHelper.CreateEnumEIDInfo(netEIDS);
int Count = pEnumEIDInfo.Count;
pEnumEIDInfo.Reset();
for (int i = 0; i < Count; i++)
{
IEIDInfo pEIDInfo = pEnumEIDInfo.Next();
IGeometry pGeometry = pEIDInfo.Geometry;
pGeometryCollection.AddGeometryCollection(pGeometry as IGeometryCollection);
}
return(pPolyline);
}
/// <summary>
/// Get list EIDInfos by FeatureClass
/// </summary>
/// <param name="featureClassId">Id FeatureClass</param>
/// <param name="junctionEIDs">object junctionEIDs</param>
/// <param name="eidHelper">object eidHelper</param>
/// <returns>List of IEIDInfo</returns>
internal static List <IEIDInfo> GetEIDInfoListByFeatureClass(int featureClassId, IEnumNetEID junctionEIDs, IEIDHelper eidHelper)
{
List <IEIDInfo> outputEIDInfoHT = new List <IEIDInfo>();
IEnumEIDInfo allEnumEidInfo = eidHelper.CreateEnumEIDInfo(junctionEIDs);
IEIDInfo eidInfo = allEnumEidInfo.Next();
while (eidInfo != null)
{
if (eidInfo.Feature.Class.ObjectClassID == featureClassId)
{
outputEIDInfoHT.Add(eidInfo);
}
eidInfo = allEnumEidInfo.Next();
}
return(outputEIDInfoHT);
}
/// <summary>
/// Returns the <see cref="IEIDInfo" /> for the specified network element.
/// </summary>
/// <param name="source">The source.</param>
/// <param name="eid">The element ID.</param>
/// <param name="elementType">Type of the element.</param>
/// <param name="returnFeatures">if set to <c>true</c> if the created IEIDInfo should contain features.</param>
/// <param name="returnGeometries">if set to <c>true</c> if the created EIDInfo should contain geometries.</param>
/// <returns>
/// Returns the <see cref="IEIDInfo" /> interface for the network element.
/// </returns>
public static IEIDInfo GetEIDInfo(this IGeometricNetwork source, int eid, esriElementType elementType, bool returnFeatures, bool returnGeometries)
{
if (source == null)
{
return(null);
}
IEnumNetEID enumNetEID = source.CreateEnumNetEID(elementType, eid);
IEIDHelper eidHelper = new EIDHelperClass();
eidHelper.GeometricNetwork = source;
eidHelper.ReturnFeatures = returnFeatures;
eidHelper.ReturnGeometries = returnGeometries;
IEnumEIDInfo enumEIDInfo = eidHelper.CreateEnumEIDInfo(enumNetEID);
IEIDInfo eidInfo = enumEIDInfo.Next();
return(eidInfo);
}
private void method_5(IGeometricNetwork geometricNetwork)
{
INetwork network = geometricNetwork.Network;
IUtilityNetwork utilityNetwork = (IUtilityNetwork)network;
IEnumNetEID enumNetEID = network.CreateNetBrowser((esriElementType)2);
IEIDHelper eIDHelperClass = new EIDHelper();
eIDHelperClass.GeometricNetwork = (geometricNetwork);
eIDHelperClass.DisplayEnvelope = (null);
eIDHelperClass.OutputSpatialReference = (null);
eIDHelperClass.ReturnFeatures = (true);
eIDHelperClass.ReturnGeometries = (true);
eIDHelperClass.PartialComplexEdgeGeometry = (true);
IEnumEIDInfo enumEIDInfo = eIDHelperClass.CreateEnumEIDInfo(enumNetEID);
enumEIDInfo.Reset();
long num = (long)enumEIDInfo.Count;
int num2 = 0;
while ((long)num2 < num)
{
IEIDInfo iEIDInfo = enumEIDInfo.Next();
int eID = iEIDInfo.EID;
IFeature feature = iEIDInfo.Feature;
int num3 = feature.Fields.FindField("流向");
if (num3 < 0)
{
utilityNetwork.SetFlowDirection(eID, (esriFlowDirection)1);
}
if (Convert.ToBoolean(feature.get_Value(num3)))
{
utilityNetwork.SetFlowDirection(eID, (esriFlowDirection)2);
}
else
{
utilityNetwork.SetFlowDirection(eID, (esriFlowDirection)1);
}
num2++;
}
}
/// <summary>
/// object polyline. Distance negative -> upstream
/// </summary>
/// <param name="geometricNetwork">object geometricNetwork</param>
/// <param name="resultEdges">objects resultEdges</param>
/// <param name="distance">value of distance</param>
/// <param name="point">object point</param>
/// <param name="offset">offset of polyline</param>
/// <param name="messageInfo">info on result</param>
/// <returns>object IGeometry (polyline or point)</returns>
internal static IGeometry GetPolylinePosAlong(ESRI.ArcGIS.Geodatabase.IGeometricNetwork geometricNetwork, IEnumNetEID resultEdges, double distance, IPoint point, double?offset, ref string messageInfo)
{
IGeometry geometryBag = new GeometryBagClass();
geometryBag.SpatialReference = point.SpatialReference;
IGeometryCollection geometryCollection = geometryBag as IGeometryCollection;
IEIDHelper eidHelper = new EIDHelperClass();
eidHelper.GeometricNetwork = geometricNetwork;
eidHelper.ReturnGeometries = true;
eidHelper.ReturnFeatures = false;
IEnumEIDInfo enumEIDinfo = eidHelper.CreateEnumEIDInfo(resultEdges);
enumEIDinfo.Reset();
IEIDInfo eidInfo = enumEIDinfo.Next();
while (eidInfo != null)
{
IGeometry geometry = eidInfo.Geometry;
geometryCollection.AddGeometry(geometry);
eidInfo = enumEIDinfo.Next();
}
ITopologicalOperator unionedPolyline = new PolylineClass();
unionedPolyline.ConstructUnion(geometryBag as IEnumGeometry);
IPolyline pl = unionedPolyline as IPolyline;
if (distance < 0)
{
pl.ReverseOrientation();
distance = Math.Abs(distance);
}
IMAware mAware = pl as IMAware;
mAware.MAware = true;
IMSegmentation3 mSegmentation = unionedPolyline as IMSegmentation3;
mSegmentation.SetMsAsDistance(false);
IPoint ptTmp = new PointClass();
double distanceAlong = 0;
double distanceFromCurve = 0;
bool rightSide = false;
pl.QueryPointAndDistance(esriSegmentExtension.esriNoExtension, point, false, ptTmp, ref distanceAlong, ref distanceFromCurve, ref rightSide);
object mStartArray = mSegmentation.GetMsAtDistance(distanceAlong, false);
double[] mStart = mStartArray as double[];
double distanceDownStream = distanceAlong + distance;
IPolyline resultPolyline = mSegmentation.GetSubcurveBetweenMs(mStart[0], distanceDownStream) as IPolyline;
if (resultPolyline.IsEmpty)
{
return(point);
}
if (mSegmentation.MMax < distanceDownStream)
{
messageInfo = "The set distance exceeds the length of network";
}
return(Helper.ConstructOffset(resultPolyline, offset));
}
private void StartAnalysis(IFeature feature)
{
if (feature.FeatureType != esriFeatureType.esriFTSimpleJunction)
{
MessageService.Current.Warn("请选择管线点");
return;
}
if (!_pipelineConfig.IsPipelineLayer(feature.Class.AliasName, enumPipelineDataType.Point))
{
MessageService.Current.Warn("请选择管线点");
return;
}
double snapDist = CommonUtils.ConvertPixelsToMapUnits(_context.ActiveView,
_context.Config.SnapTolerance);
IBasicLayerInfo lineConfig =
_plugin.PipeConfig.GetBasicLayerInfo(feature.Class as IFeatureClass) as IBasicLayerInfo;
if (this._startPoint == null && _startEid == 0)
{
//开始记录起始点
IPipelineLayer oldLayer = _pipelineConfig.GetPipelineLayer(feature.Class.AliasName,
enumPipelineDataType.Point);
if (oldLayer == null)
{
MessageService.Current.Warn("你选择的图层不是合法的管线图层!");
return;
}
List <IBasicLayerInfo> basicInfos = oldLayer.GetLayers(enumPipelineDataType.Junction);
IFeatureClass featureClass = basicInfos.Count > 0 ? basicInfos[0].FeatureClass : null;
if (featureClass == null)
{
MessageService.Current.Warn("管线图层没有构建网络图层!");
return;
}
INetworkClass networkClass = featureClass as INetworkClass;
_geometricNetwork = networkClass.GeometricNetwork;
IPointToEID pnToEid = new PointToEIDClass();
pnToEid.GeometricNetwork = _geometricNetwork;
pnToEid.SnapTolerance = snapDist;
pnToEid.SourceMap = _context.FocusMap;
pnToEid.GetNearestJunction(feature.Shape as IPoint, out _startEid, out _startPoint);
return;
}
IPipelineLayer newLayer = _pipelineConfig.GetPipelineLayer(feature.Class.AliasName,
enumPipelineDataType.Point);
if (newLayer == null)
{
MessageService.Current.Warn("你选择的图层不是合法的管线图层!");
return;
}
List <IBasicLayerInfo> basicInfos1 = newLayer.GetLayers(enumPipelineDataType.Junction);
IFeatureClass featureClass2 = basicInfos1.Count > 0 ? basicInfos1[0].FeatureClass : null;
if (featureClass2 == null)
{
MessageService.Current.Warn("第二个管线图层没有构建网络图层!");
return;
}
INetworkClass networkClass2 = featureClass2 as INetworkClass;
if (networkClass2.GeometricNetwork != _geometricNetwork)
{
if (MessageService.Current.Ask("两个点位属于不同的网络图层，使用第二个网络图层作为分析图层吗?") == false)
{
return;
}
_geometricNetwork = networkClass2.GeometricNetwork;
IPointToEID pnToEid = new PointToEIDClass();
pnToEid.GeometricNetwork = _geometricNetwork;
pnToEid.SnapTolerance = snapDist;
pnToEid.SourceMap = _context.FocusMap;
pnToEid.GetNearestJunction(feature.Shape as IPoint, out _startEid, out _startPoint);
return;
}
try
{
IPointToEID pntEid = new PointToEIDClass();
pntEid.GeometricNetwork = _geometricNetwork;
pntEid.SourceMap = _context.FocusMap;
pntEid.SnapTolerance = snapDist;
pntEid.GetNearestJunction(feature.Shape as IPoint, out _endEid, out _endPoint);
if (_endEid < 1)
{
MessageService.Current.Warn("未能找到第二个分析点!");
return;
}
if (_startEid == _endEid)
{
MessageService.Current.Warn("起点终点为同一个点!");
return;
}
INetElements netElements = _geometricNetwork.Network as INetElements;
INetworkClass networkClass = feature.Class as INetworkClass;
IJunctionFlag[] array = new JunctionFlag[2];
INetFlag netFlag = new JunctionFlag() as INetFlag;
int userClassID;
int userID;
int userSubID;
netElements.QueryIDs(_endEid, esriElementType.esriETJunction, out userClassID, out userID, out userSubID);
netFlag.UserClassID = (userClassID);
netFlag.UserID = (userID);
netFlag.UserSubID = (userSubID);
IJunctionFlag value = netFlag as IJunctionFlag;
array.SetValue(value, 0);
INetFlag netFlag2 = new JunctionFlag() as INetFlag;
netElements.QueryIDs(_startEid, esriElementType.esriETJunction, out userClassID,
out userID, out userSubID);
netFlag2.UserClassID = (userClassID);
netFlag2.UserID = (userID);
netFlag2.UserSubID = (userSubID);
value = (netFlag2 as IJunctionFlag);
array.SetValue(value, 1);
ITraceFlowSolverGEN traceFlowSolverGEN = new TraceFlowSolver() as ITraceFlowSolverGEN;
INetSolver netSolver = traceFlowSolverGEN as INetSolver;
netSolver.SourceNetwork = _geometricNetwork.Network;
traceFlowSolverGEN.PutJunctionOrigins(ref array);
object[] array2 = new object[1];
IEnumNetEID enumNetEID;
IEnumNetEID enumNetEID2;
traceFlowSolverGEN.FindPath((esriFlowMethod)2, (esriShortestPathObjFn)1, out enumNetEID,
out enumNetEID2, 1, ref array2);
if (this.ipolyline_0 == null)
{
this.ipolyline_0 = new Polyline() as IPolyline;
}
IGeometryCollection geometryCollection = this.ipolyline_0 as IGeometryCollection;
geometryCollection.RemoveGeometries(0, geometryCollection.GeometryCount);
if (enumNetEID2.Count <= 0)
{
this.ifeature_0 = null;
MessageBox.Show("两点之间不存在路径可以连通！");
}
else
{
ShowShortObjectForm showShortObjectForm = new ShowShortObjectForm(_context);
showShortObjectForm.pApp = _context;
ISpatialReference spatialReference = _context.FocusMap.SpatialReference;
IEIDHelper eIDHelperClass = new EIDHelper();
eIDHelperClass.GeometricNetwork = (networkClass.GeometricNetwork);
eIDHelperClass.OutputSpatialReference = (spatialReference);
eIDHelperClass.ReturnGeometries = (true);
eIDHelperClass.ReturnFeatures = (true);
IEnumEIDInfo enumEIDInfo = eIDHelperClass.CreateEnumEIDInfo(enumNetEID2);
int count = enumEIDInfo.Count;
enumEIDInfo.Reset();
for (int i = 0; i < count; i++)
{
IEIDInfo iEIDInfo = enumEIDInfo.Next();
IGeometry geometry = iEIDInfo.Geometry;
if (i == 0)
{
showShortObjectForm.AddPipeName(this.string_0);
}
showShortObjectForm.AddFeature(iEIDInfo.Feature);
geometryCollection.AddGeometryCollection(geometry as IGeometryCollection);
}
showShortObjectForm.AddShortPath(this.ipolyline_0);
showShortObjectForm.AddLenght(this.ipolyline_0.Length);
this.ifeature_2 = feature;
EsriUtils.ZoomToGeometry(this.ipolyline_0, _context.MapControl.Map, 1.3);
FlashUtility.FlashGeometry(this.ipolyline_0, _context.MapControl);
this.ifeature_0 = null;
_startEid = 0;
_startPoint = null;
_geometricNetwork = null;
showShortObjectForm.Show();
}
}
catch (Exception ex)
{
this.ifeature_0 = null;
MessageBox.Show(ex.Message);
}
}
public void GetFlow(IMap pMap)
{
int num4;
this.m_pPointcol = new MultipointClass();
this.m_eFlowDirection.Clear();
this.m_angle.Clear();
INetwork network = NetworkAnalyst.m_pAnalystGN.Network;
IUtilityNetwork network2 = network as IUtilityNetwork;
IEnumNetEID netEIDs = network.CreateNetBrowser(esriElementType.esriETEdge);
IEnumNetEID teid2 = network.CreateNetBrowser(esriElementType.esriETJunction);
netEIDs.Reset();
int count = netEIDs.Count;
int num2 = teid2.Count;
IEIDHelper helper = new EIDHelperClass
{
GeometricNetwork = NetworkAnalyst.m_pAnalystGN,
OutputSpatialReference = pMap.SpatialReference,
ReturnGeometries = true,
ReturnFeatures = true
};
IEnumEIDInfo info = helper.CreateEnumEIDInfo(teid2);
int num3 = info.Count;
teid2.Reset();
info.Reset();
IPointCollection points = new MultipointClass();
object before = Missing.Value;
for (num4 = 0; num4 < num2; num4++)
{
IPoint inPoint = info.Next().Geometry as IPoint;
points.AddPoint(inPoint, ref before, ref before);
}
info = null;
info = helper.CreateEnumEIDInfo(netEIDs);
num3 = info.Count;
netEIDs.Reset();
info.Reset();
IList list = new ArrayList();
ILine line = new LineClass();
IList list2 = new ArrayList();
int num5 = 0;
for (num4 = 0; num4 < count; num4++)
{
int edgeEID = netEIDs.Next();
this.m_eFlowDirection.Add(network2.GetFlowDirection(edgeEID));
IEIDInfo info2 = info.Next();
IGeometry geometry = info2.Geometry;
IEdgeFeature feature = info2.Feature as IEdgeFeature;
IPointCollection points2 = geometry as IPointCollection;
int pointCount = points2.PointCount;
IPoint other = new PointClass();
IPoint[] pointArray = new IPoint[pointCount];
IRelationalOperator @operator = points as IRelationalOperator;
IPointCollection points3 = new MultipointClass();
int num8 = 0;
for (int i = 0; i < pointCount; i++)
{
other = points2.get_Point(i);
if (@operator.Contains(other))
{
IPoint point3 = points2.get_Point(i);
points3.AddPoint(point3, ref before, ref before);
pointArray[i] = point3;
}
else
{
pointArray[i] = null;
}
}
IPoint[] pointArray2 = new IPoint[pointCount];
num8 = points3.PointCount;
int index = -1;
if (num5 < (points3.PointCount - 1))
{
for (int j = 0; j < pointCount; j++)
{
if (pointArray[j] != null)
{
index++;
}
if (index == num5)
{
index = j;
break;
}
}
IPoint point4 = new PointClass();
pointArray2[index] = pointArray[index];
pointArray2[index + 1] = points2.get_Point(index + 1);
point4.X = (pointArray2[index].X + pointArray2[index + 1].X) / 2.0;
point4.Y = (pointArray2[index].Y + pointArray2[index + 1].Y) / 2.0;
this.m_pPointcol.AddPoint(point4, ref before, ref before);
line.FromPoint = pointArray2[index];
line.ToPoint = pointArray2[index + 1];
this.m_angle.Add(line.Angle);
num5++;
if (num5 == (num8 - 1))
{
num5 = 0;
}
}
}
this.ShowFlow(pMap as IActiveView);
}
private void SetButton_Click(object obj, EventArgs eventArgs)
{
int count = this.listJunctionFlag.Count;
int count2 = this.listEdgeFlag.Count;
int count3 = this.listJunctionBarrier.Count;
int count4 = this.listEdgeBarrier.Count;
if (count < 1 && count2 < 1)
{
MessageBox.Show("请用户选择要分析的点或线!");
}
else
{
IEdgeFlag[] array = new EdgeFlag[count2];
IJunctionFlag[] array2 = new JunctionFlag[count];
INetwork network = null;
INetworkClass networkClass = null;
if (count > 0)
{
for (int i = 0; i < count; i++)
{
IFeature feature = this.listJunctionFlag[i];
networkClass = (feature.Class as INetworkClass);
network = networkClass.GeometricNetwork.Network;
INetElements netElements = network as INetElements;
INetFlag netFlag = new JunctionFlag() as INetFlag;
ISimpleJunctionFeature simpleJunctionFeature = feature as ISimpleJunctionFeature;
int userClassID;
int userID;
int userSubID;
netElements.QueryIDs(simpleJunctionFeature.EID, (esriElementType)1, out userClassID, out userID,
out userSubID);
netFlag.UserClassID = (userClassID);
netFlag.UserID = (userID);
netFlag.UserSubID = (userSubID);
IJunctionFlag junctionFlag = netFlag as IJunctionFlag;
array2[i] = junctionFlag;
}
}
if (count2 > 0)
{
for (int j = 0; j < count2; j++)
{
IFeature feature2 = this.listEdgeFlag[j];
networkClass = (feature2.Class as INetworkClass);
network = networkClass.GeometricNetwork.Network;
INetElements netElements2 = network as INetElements;
INetFlag netFlag2 = new EdgeFlag() as INetFlag;
ISimpleEdgeFeature simpleEdgeFeature = feature2 as ISimpleEdgeFeature;
int userClassID2;
int userID2;
int userSubID2;
netElements2.QueryIDs(simpleEdgeFeature.EID, (esriElementType)2, out userClassID2, out userID2,
out userSubID2);
netFlag2.UserClassID = (userClassID2);
netFlag2.UserID = (userID2);
netFlag2.UserSubID = (userSubID2);
IEdgeFlag edgeFlag = netFlag2 as IEdgeFlag;
array[j] = edgeFlag;
}
}
ITraceFlowSolverGEN traceFlowSolverGEN = new TraceFlowSolver() as ITraceFlowSolverGEN;
INetSolver netSolver = traceFlowSolverGEN as INetSolver;
INetElementBarriersGEN netElementBarriersGEN = new NetElementBarriers();
netElementBarriersGEN.Network = (network);
netElementBarriersGEN.ElementType = (esriElementType)(1);
int[] array3 = new int[count3];
int num = 0;
if (count3 > 0)
{
for (int k = 0; k < count3; k++)
{
IFeature feature3 = this.listJunctionBarrier[k];
networkClass = (feature3.Class as INetworkClass);
network = networkClass.GeometricNetwork.Network;
INetElements netElements3 = network as INetElements;
new EdgeFlag();
ISimpleJunctionFeature simpleJunctionFeature2 = feature3 as ISimpleJunctionFeature;
int num2;
int num3;
netElements3.QueryIDs(simpleJunctionFeature2.EID, (esriElementType)1, out num, out num2,
out num3);
array3[k] = num2;
}
netElementBarriersGEN.SetBarriers(num, ref array3);
netSolver.set_ElementBarriers((esriElementType)1, (INetElementBarriers)netElementBarriersGEN);
}
INetElementBarriersGEN netElementBarriersGEN2 = new NetElementBarriers();
netElementBarriersGEN2.Network = (network);
netElementBarriersGEN2.ElementType = (esriElementType)(2);
int[] array4 = new int[count4];
if (count4 > 0)
{
for (int l = 0; l < count4; l++)
{
IFeature feature4 = this.listEdgeBarrier[l];
networkClass = (feature4.Class as INetworkClass);
network = networkClass.GeometricNetwork.Network;
INetElements netElements4 = network as INetElements;
new EdgeFlag();
ISimpleEdgeFeature simpleEdgeFeature2 = feature4 as ISimpleEdgeFeature;
int num4;
int num5;
netElements4.QueryIDs(simpleEdgeFeature2.EID, (esriElementType)2, out num, out num4, out num5);
array4[l] = num4;
}
netElementBarriersGEN2.SetBarriers(num, ref array4);
netSolver.set_ElementBarriers((esriElementType)2, (INetElementBarriers)netElementBarriersGEN2);
}
netSolver.SourceNetwork = (network);
if (count > 0)
{
traceFlowSolverGEN.PutJunctionOrigins(ref array2);
}
if (count2 > 0)
{
traceFlowSolverGEN.PutEdgeOrigins(ref array);
}
IEnumNetEID enumNetEID = null;
IEnumNetEID enumNetEID2 = null;
object[] array5 = new object[1];
if (this.WayCom.SelectedIndex == 0)
{
traceFlowSolverGEN.FindSource(0, (esriShortestPathObjFn)1, out enumNetEID, out enumNetEID2,
count + count2, ref array5);
}
if (this.WayCom.SelectedIndex == 1)
{
traceFlowSolverGEN.FindSource((esriFlowMethod)1, (esriShortestPathObjFn)1, out enumNetEID,
out enumNetEID2, count + count2, ref array5);
}
IPolyline polyline = new Polyline() as IPolyline;
IGeometryCollection geometryCollection = polyline as IGeometryCollection;
ISpatialReference spatialReference = this.m_iApp.FocusMap.SpatialReference;
IEIDHelper iEIDHelper = new EIDHelper();
iEIDHelper.GeometricNetwork = (networkClass.GeometricNetwork);
iEIDHelper.OutputSpatialReference = (spatialReference);
iEIDHelper.ReturnGeometries = (true);
iEIDHelper.ReturnFeatures = (true);
int selectedIndex = this.LayerCom.SelectedIndex;
if (selectedIndex >= 0 && this.MapControl != null)
{
this.LayerCom.SelectedItem.ToString();
IFeatureLayer ifeatureLayer_ = ((TrackingAnalyForm.LayerInfo) this.LayerCom.SelectedItem)._layer;
if (ifeatureLayer_ != null)
{
IFeatureSelection featureSelection = (IFeatureSelection)ifeatureLayer_;
featureSelection.Clear();
if (enumNetEID2 != null)
{
IEnumEIDInfo enumEIDInfo = iEIDHelper.CreateEnumEIDInfo(enumNetEID2);
int count5 = enumEIDInfo.Count;
enumEIDInfo.Reset();
for (int m = 0; m < count5; m++)
{
IEIDInfo iEIDInfo = enumEIDInfo.Next();
featureSelection.Add(iEIDInfo.Feature);
IGeometry geometry = iEIDInfo.Geometry;
geometryCollection.AddGeometryCollection(geometry as IGeometryCollection);
}
}
featureSelection.SelectionSet.Refresh();
IActiveView activeView = this.m_iApp.ActiveView;
activeView.Refresh();
CMapOperator.ShowFeatureWithWink(this.m_iApp.ActiveView.ScreenDisplay, polyline);
}
}
}
}
public static List <int> StreamTrace(IGeometricNetwork geometricNetwork, StartFlagEdge edge, List <int> disabledFeatureClassIds, StopperJunctions stoppers, bool isUpStream, int maxFeatureCount, ServerLogger logger)
{
esriFlowMethod direction = isUpStream ? esriFlowMethod.esriFMUpstream : esriFlowMethod.esriFMDownstream;
if (null == geometricNetwork || null == edge || maxFeatureCount <= 0)
{
return(null);
}
ITraceFlowSolverGEN traceFlowSolver = new TraceFlowSolverClass() as ITraceFlowSolverGEN;
INetSolver netSolver = traceFlowSolver as INetSolver;
netSolver.SourceNetwork = geometricNetwork.Network;
INetFlag netFlag = new EdgeFlagClass();
netFlag.UserClassID = edge.FeatureClassID;
netFlag.UserID = edge.FeatureID;
//no idea when to assign -1, when to do 0
netFlag.UserSubID = -1;
traceFlowSolver.PutEdgeOrigins(new IEdgeFlag[1] {
netFlag as IEdgeFlag
});
if (null != disabledFeatureClassIds)
{
foreach (int il in disabledFeatureClassIds)
{
if (il > 0)
{
netSolver.DisableElementClass(il);
}
}
}
if (null != stoppers && null != stoppers.Stoppers && stoppers.Stoppers.Length > 0)
{
INetElementBarriersGEN netBarriersGEN = null;
netBarriersGEN = new NetElementBarriersClass() as INetElementBarriersGEN;
netBarriersGEN.ElementType = esriElementType.esriETJunction;
netBarriersGEN.Network = geometricNetwork.Network;
netBarriersGEN.SetBarriers(stoppers.FeatureClassID, stoppers.Stoppers);
netSolver.set_ElementBarriers(esriElementType.esriETJunction, netBarriersGEN as INetElementBarriers);
}
IEnumNetEID junctionEIDs = null;
IEnumNetEID edgeEIDs = null;
traceFlowSolver.TraceIndeterminateFlow = false;
try
{
traceFlowSolver.FindFlowElements(direction, esriFlowElements.esriFEEdges, out junctionEIDs, out edgeEIDs);
if (null != edgeEIDs)
{
if (edgeEIDs.Count <= maxFeatureCount)
{
IEIDHelper eidHelper = new EIDHelperClass();
eidHelper.GeometricNetwork = geometricNetwork;
eidHelper.ReturnGeometries = false;
eidHelper.ReturnFeatures = true;
//eidHelper.AddField("FType");
IEnumEIDInfo eidInfos = eidHelper.CreateEnumEIDInfo(edgeEIDs);
eidInfos.Reset();
IEIDInfo eidInfo = null;
List <int> ftrs = new List <int>();
//IFeature cadFtr = null;
//int ftype;
while ((eidInfo = eidInfos.Next()) != null)
{
ftrs.Add(eidInfo.Feature.OID);
/*cadFtr = eidInfo.Feature;
* if (null != cadFtr.get_Value(edgeTypeId) && int.TryParse(cadFtr.get_Value(edgeTypeId).ToString(), out ftype))
* {
* if(460 == ftype || 558 == ftype)
* ftrs.Add(cadFtr);
* }*/
}
return(ftrs);
}
}
}
catch (Exception e)
{
if (null != logger)
{
logger.LogMessage(ServerLogger.msgType.error, typeof(AOUtilities).Name + "." + System.Reflection.MethodBase.GetCurrentMethod().Name, ErrorCode, e.Message);
}
}
finally
{
ReleaseCOMObj(traceFlowSolver);
}
return(null);
}
/// <summary>
/// return a featureSet from EIDs
/// </summary>
/// <param name="eids">object EIDs</param>
/// <param name="featureSets">array JsonObject featureSet</param>
protected void GetTrace(IEnumNetEID eids, out JsonObject[] featureSets)
{
IEIDHelper eidHelper = new EIDHelperClass();
eidHelper.GeometricNetwork = this.geometricNetwork;
eidHelper.ReturnGeometries = true;
eidHelper.ReturnFeatures = true;
Dictionary <int, IPair <List <int>, IFeatureClass> > dictionary = new Dictionary <int, IPair <List <int>, IFeatureClass> >();
IEnumEIDInfo enumEIDinfo = eidHelper.CreateEnumEIDInfo(eids);
enumEIDinfo.Reset();
IEIDInfo eidInfo = enumEIDinfo.Next();
while (eidInfo != null)
{
IFeatureClass featureClass = eidInfo.Feature.Class as IFeatureClass;
IFeature feature = eidInfo.Feature;
int featureClassID = featureClass.FeatureClassID;
if (!dictionary.ContainsKey(featureClassID))
{
IPair <List <int>, IFeatureClass> pair = new Pair <List <int>, IFeatureClass>(new List <int>(), featureClass);
dictionary.Add(featureClassID, pair);
}
dictionary[featureClassID].First.Add(feature.OID);
eidInfo = enumEIDinfo.Next();
}
List <JsonObject> jsonObjects = new List <JsonObject>();
foreach (int i in dictionary.Keys)
{
IPair <List <int>, IFeatureClass> pair = dictionary[i];
List <int> listOIDs = pair.First;
IFeatureClass featureClass = pair.Second;
IQueryFilter2 queryFilter = new QueryFilterClass();
if (this.OutFields[0] != "*")
{
List <string> listFields = new List <string>();
Array.ForEach(
this.OutFields,
s =>
{
if (featureClass.Fields.FindField(s) != -1)
{
listFields.Add(s);
}
});
if (listFields.Count == 0)
{
queryFilter.SubFields = featureClass.OIDFieldName;
}
else
{
listFields.Each((s, index) =>
{
if (index == 0)
{
queryFilter.SubFields = s;
}
else
{
queryFilter.AddField(s);
}
});
if (!Array.Exists(this.OutFields, s => s == featureClass.OIDFieldName))
{
queryFilter.AddField(featureClass.OIDFieldName);
}
if (!Array.Exists(this.OutFields, s => s == featureClass.ShapeFieldName))
{
queryFilter.AddField(featureClass.ShapeFieldName);
}
}
}
queryFilter.WhereClause = featureClass.OIDFieldName + " IN (" + string.Join(",", Array.ConvertAll <int, string>(listOIDs.ToArray(), s => s.ToString(CultureInfo.InvariantCulture))) + ")";
IRecordSet recordset = Helper.ConvertToRecordset(featureClass, queryFilter);
jsonObjects.Add(new JsonObject(Encoding.UTF8.GetString(Conversion.ToJson(recordset))));
}
featureSets = jsonObjects.ToArray();
}
/// <summary>
/// Gets the node that will be added to the graph.
/// </summary>
/// <param name="edge">The edge feature.</param>
/// <param name="source">The source junction feature.</param>
/// <param name="target">The target junction feature.</param>
/// <param name="sourceAlreadyVisited">if set to <c>true</c> if the source junction has already been visited by the trace.</param>
/// <param name="targetAlreadyVisited">if set to <c>true</c> if the target junction has already been visited by the trace.</param>
/// <returns>
/// Returns an <see cref="AdjacencyNode" /> representing the edge and junctions.
/// </returns>
protected override AdjacencyNode GetAdjacencyNode(IEIDInfo edge, IEIDInfo source, IEIDInfo target, bool sourceAlreadyVisited, bool targetAlreadyVisited)
{
return(new AdjacencyNode(edge, source, target, sourceAlreadyVisited, targetAlreadyVisited));
}
