ArcGISEngine+最短路径分析(C#源码).docVIP

建立network，是把有关联的数据表之间的空间关系建立起来 你可以用arc catalog或者arc toolbox中的工具来创建 其实你这个问题，直接有哪些信誉好的足球投注网站一下arcgis，创建network，就能得到答案了呀 desktop中有向导式的工具，具体叫什么名字我忘记了，好像是在topologic还是哪个组下面，你找一下肯定找的到的。单单用engine是不成的 using ESRI.ArcGIS.NetworkAnalysis; public class ClsPathFinder { private IGeometricNetwork m_ipGeometricNetwork; private IMap m_ipMap; private IPointCollection m_ipPoints; private IPointToEID m_ipPointToEID; private double m_dblPathCost =0; private IEnumNetEID m_ipEnumNetEID_Junctions; private IEnumNetEID m_ipEnumNetEID_Edges; private IPolyline m_ipPolyline; #region Public Function //返回和设置当前地图 public IMap SetOrGetMap { set{ m_ipMap = value;} get{return m_ipMap;} } //打开网络 public void OpenFeatureDatasetNetwork(IFeatureDataset FeatureDataset) { CloseWorkspace(); if (!InitializeNetworkAndMap(FeatureDataset)) Console.WriteLine( 打开出错); } //输入点的集合 public IPointCollection StopPoints { set{m_ipPoints= value;} get{return m_ipPoints;} } //路径成本 public double PathCost { get {return m_dblPathCost;} } //返回路径 public IPolyline PathPolyLine() { IEIDInfo ipEIDInfo; IGeometry ipGeometry; if(m_ipPolyline!=null)return m_ipPolyline; m_ipPolyline = new PolylineClass(); IGeometryCollection ipNewGeometryColl = m_ipPolyline as IGeometryCollection; ISpatialReference ipSpatialReference = m_ipMap.SpatialReference; IEIDHelper ipEIDHelper = new EIDHelperClass(); ipEIDHelper.GeometricNetwork = m_ipGeometricNetwork; ipEIDHelper.OutputSpatialReference = ipSpatialReference; ipEIDHelper.ReturnGeometries = true; IEnumEIDInfo ipEnumEIDInfo = ipEIDHelper.CreateEnumEIDInfo(m_ipEnumNetEID_Edges); int count = ipEnumEIDInfo.Count; ipEnumEIDInfo.Reset(); for(int i =0;icount;i++) { ipEIDInfo = ipEnumEIDInfo.Next(); ipGeometry = ipEIDInfo.Geometry; ipNewGeometryColl.AddGeometryCollection( ipGeometry as IGeometr