private void ResultBtn_Click(object sender, EventArgs e)
{
try
{
#region 设置管点分析分析条件
//为追踪任务分析器设置管点
IJunctionFlag[] arrayJunctionFlag = new IJunctionFlag[listJunctionsFlag.Count];
for (int i = 0; i < arrayJunctionFlag.Length; i++)
{
arrayJunctionFlag[i] = listJunctionsFlag[i];
}
traceFlowsolverGen.PutJunctionOrigins(ref arrayJunctionFlag);
//为追踪任务分析器设置管线
IEdgeFlag[] arrayEdgeFlag = new IEdgeFlag[listEdgeFlag.Count];
for (int i = 0; i < arrayEdgeFlag.Length; i++)
{
traceFlowsolverGen.PutEdgeOrigins(ref arrayEdgeFlag);
}
//为管点分析器设置障碍点
INetElementBarriersGEN netElementBarriersGEN = new NetElementBarriersClass();
netElementBarriersGEN.Network = m_GeometryNetwork.Network;
if (JunctionBarrierEIDs.Count > 0)
{
int[] junctionBarrierEIDs = new int[JunctionBarrierEIDs.Count];
for (int j = 0; j < junctionBarrierEIDs.Length; j++)
{
junctionBarrierEIDs[j] = JunctionBarrierEIDs[j];
}
netElementBarriersGEN.ElementType = esriElementType.esriETJunction;
netElementBarriersGEN.SetBarriersByEID(ref junctionBarrierEIDs);
netsolver.set_ElementBarriers(esriElementType.esriETJunction, netElementBarriersGEN as INetElementBarriers);
}
else //否则将管点设置为空
{
netsolver.set_ElementBarriers(esriElementType.esriETJunction, null);
}
//未管点分析器设置障碍线
if (EdgeBarrierEIDs.Count > 0)
{
int[] edgeBarrierEIDs = new int[EdgeBarrierEIDs.Count];
for (int j = 0; j < EdgeBarrierEIDs.Count; j++)
{
edgeBarrierEIDs[j] = EdgeBarrierEIDs[j];
}
netElementBarriersGEN.ElementType = esriElementType.esriETEdge;
netElementBarriersGEN.SetBarriersByEID(ref edgeBarrierEIDs);
netsolver.set_ElementBarriers(esriElementType.esriETEdge, netElementBarriersGEN as INetElementBarriers);
}
else //否则将管线设置为空
{
netsolver.set_ElementBarriers(esriElementType.esriETEdge, null);
}
#endregion
//定义相关变量
IEnumNetEID junctionEIDs = new EnumNetEIDArrayClass();
IEnumNetEID edgeEIDs = new EnumNetEIDArrayClass();
object[] segmentsCosts = null;
object totalCost = null;
int Counts = -1;
#region 各种几何网络分析的结果
switch (this.AnalysisCategoryCmbx.SelectedIndex)
{
//查询共同祖先
case 0:
traceFlowsolverGen.FindCommonAncestors(esriFlowElements.esriFEJunctionsAndEdges, out junctionEIDs, out edgeEIDs);
break;
//查找相连接的网络要素
case 1:
traceFlowsolverGen.FindFlowElements(esriFlowMethod.esriFMConnected, esriFlowElements.esriFEJunctionsAndEdges, out junctionEIDs, out edgeEIDs);
break;
//查找网络中连接的环
case 2:
traceFlowsolverGen.FindCircuits(esriFlowElements.esriFEJunctionsAndEdges, out junctionEIDs, out edgeEIDs);
break;
//查找未连接的网络要素
case 3:
traceFlowsolverGen.FindFlowUnreachedElements(esriFlowMethod.esriFMConnected, esriFlowElements.esriFEJunctionsAndEdges, out junctionEIDs, out edgeEIDs);
break;
//查找上游路径，同时跟踪耗费
case 4:
Counts = GetSegmentCounts();
segmentsCosts = new object[Counts];
traceFlowsolverGen.FindSource(esriFlowMethod.esriFMUpstream, esriShortestPathObjFn.esriSPObjFnMinSum, out junctionEIDs, out edgeEIDs, Counts, ref segmentsCosts);
break;
//获取网络路径，追踪网络耗费。count比所有的的标识总数少一个，但如果管点和管线标识同时存在的时候该功能不可用
case 5:
if (listEdgeFlag.Count > 0 && listJunctionsFlag.Count > 0)
{
break;
}
else if (listJunctionsFlag.Count > 0)
{
Counts = listJunctionsFlag.Count - 1;
}
else if (listEdgeFlag.Count > 0)
{
Counts = listEdgeFlag.Count - 1;
}
else
{
break;
}
segmentsCosts = new object[Counts];
traceFlowsolverGen.FindPath(esriFlowMethod.esriFMConnected, esriShortestPathObjFn.esriSPObjFnMinSum, out junctionEIDs, out edgeEIDs, Counts, ref segmentsCosts);
break;
//下游追踪
case 6:
traceFlowsolverGen.FindFlowElements(esriFlowMethod.esriFMDownstream, esriFlowElements.esriFEJunctionsAndEdges, out junctionEIDs, out edgeEIDs);
break;
//查找上游路径消耗，同时获取网络追踪的耗费
case 7:
totalCost = new object();
traceFlowsolverGen.FindAccumulation(esriFlowMethod.esriFMUpstream, esriFlowElements.esriFEJunctionsAndEdges, out junctionEIDs, out edgeEIDs, out totalCost);
break;
//上游追踪
case 8:
Counts = GetSegmentCounts();
segmentsCosts = new object[Counts];
traceFlowsolverGen.FindSource(esriFlowMethod.esriFMUpstream, esriShortestPathObjFn.esriSPObjFnMinSum, out junctionEIDs, out edgeEIDs, Counts, ref segmentsCosts);
break;
default:
break;
}
#endregion
//绘制结果图像
DrawTraceRsult(junctionEIDs, edgeEIDs);
this.Mapcontrol.ActiveView.PartialRefresh(esriViewDrawPhase.esriViewGraphics, null, this.Mapcontrol.ActiveView.Extent);
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
return;
}
}
private bool slovePath()
{
try
{
double costLength = 0;
m_ipPointToEID = new PointToEIDClass();
m_ipPointToEID.SourceMap = m_HookHelper.ActiveView.FocusMap;
m_ipPointToEID.GeometricNetwork = m_ipGeometricNetwork;
m_ipPointToEID.SnapTolerance = m_HookHelper.ActiveView.Extent.Envelope.Width / 100;
INetwork ipNetwork;
INetElements ipNetElements;
INetFlag ipNetFlag;
//IEdgeFlag ipEdgeFlag;
IEdgeFlag [] EdgeFlagArray;
int pEdgeID;
IPoint pLocation;
double dblEdgePercent;
int iUserClassID, iUserID, iUserSubID;
// look up the EID for the current point (this will populate intEdgeID and dblEdgePercent)
ipTraceFlowSolver = new TraceFlowSolverClass() as ITraceFlowSolver;
//get the inetsolver interface
ipNetSolver = ipTraceFlowSolver as INetSolver;
ipNetwork = m_ipGeometricNetwork.Network;
//set the net solver's source network
ipNetSolver.SourceNetwork = ipNetwork;
//make edge flags from the points
//the INetElements interface is needed to get UserID, UserClassID,
//and UserSubID from an element id
EdgeFlagArray = new IEdgeFlag[mPointArray.PointCount];
ipNetElements = ipNetwork as INetElements;
for (int ii = 0; ii < mPointArray.PointCount; ii++)
{
ipNetFlag = new EdgeFlagClass();
point = mPointArray.get_Point(ii);
m_ipPointToEID.GetNearestEdge(point, out pEdgeID, out pLocation, out dblEdgePercent);
//iUserClassID是featureclass ID,userID是objectID,userSubID
ipNetElements.QueryIDs(pEdgeID, esriElementType.esriETEdge, out iUserClassID, out iUserID, out iUserSubID);
ipNetFlag.UserClassID = iUserClassID;
ipNetFlag.UserID = iUserID;
ipNetFlag.UserSubID = iUserSubID;
EdgeFlagArray[ii] = ipNetFlag as IEdgeFlag;
//MessageBox.Show(iUserID.ToString());
}
//添加到TraceFlowSolver中
ITraceFlowSolverGEN pTFSolverGEN = ipTraceFlowSolver as ITraceFlowSolverGEN;
pTFSolverGEN.PutEdgeOrigins(ref EdgeFlagArray);
//get the INetSchema interface
INetSchema ipNetSchema = ipNetwork as INetSchema;
INetWeight ipNetWeight = ipNetSchema.get_Weight(0);
//MessageBox.Show(ipNetWeight.WeightName);
INetSolverWeights ipNetSolverWeights = ipTraceFlowSolver as INetSolverWeights;
//来回使用同一个权重
ipNetSolverWeights.FromToEdgeWeight = ipNetWeight;
ipNetSolverWeights.ToFromEdgeWeight = ipNetWeight;
object [] totalCost = new object[mPointArray.PointCount - 1];
pTFSolverGEN.FindPath(esriFlowMethod.esriFMConnected,
esriShortestPathObjFn.esriSPObjFnMinSum,
out m_ipEnumNetEID_Junctions,
out m_ipEnumNetEID_Edges,
mPointArray.PointCount - 1, ref totalCost);
//MessageBox.Show(totalCost[0].ToString());
for (int ii = 0; ii < totalCost.Length; ii++)
{
costLength += (double)(totalCost[ii]);
}
pStatusBar.Panels[0].Text = "水管长度:" + costLength.ToString();
return(true);
}
catch (Exception e) {
MessageBox.Show(e.Message);
return(false);
}
}
