public static IRouteLocator2 CreateRouteLocator(this IDataset featureClass, string routeIdFieldName, esriUnits routeMeasureUnit)
{
IRouteLocatorName routeLocatorName = new RouteMeasureLocatorNameClass
{
RouteFeatureClassName = featureClass.FullName,
RouteIDFieldName = routeIdFieldName,
RouteMeasureUnit = routeMeasureUnit
};
var rtLocator = (IRouteLocator2)((IName)routeLocatorName).Open();
return(rtLocator);
}
/// <summary>
/// Gets the name of the route measure locator.
/// </summary>
/// <param name="source">The source.</param>
/// <param name="routeIDFieldName">Name of the route identifier field.</param>
/// <param name="routeMeasureUnit">The route measure unit.</param>
/// <param name="routeIDIsUnique">if set to <c>true</c> the route identifier is unique.</param>
/// <param name="routeWhereClause">The route where clause.</param>
/// <returns></returns>
private IRouteLocatorName GetRouteMeasureLocatorName(IFeatureClass source, string routeIDFieldName, esriUnits routeMeasureUnit, bool routeIDIsUnique, string routeWhereClause)
{
IRouteLocatorName locatorName = new RouteMeasureLocatorNameClass();
locatorName.RouteFeatureClassName = ((IDataset)source).FullName;
locatorName.RouteMeasureUnit = routeMeasureUnit;
locatorName.RouteIDFieldName = routeIDFieldName;
locatorName.RouteIDIsUnique = routeIDIsUnique;
locatorName.RouteWhereClause = routeWhereClause ?? "";
return(locatorName);
}
/// <summary>
/// get RouteLocator
/// </summary>
/// <param name="featureClass">object feature class</param>
/// <param name="routeIDFieldNameValue">value of routeIDFieldName</param>
/// <param name="routeMeasureUnit">unit of route measure</param>
/// <returns>object IRouteLocator2</returns>
private static IRouteLocator2 GetRouteLocator(IFeatureClass featureClass, string routeIDFieldNameValue, esriUnits routeMeasureUnit)
{
IDataset dataset = featureClass as IDataset;
IName nameDataset = dataset.FullName;
IRouteLocatorName routeMeasureLocatorName = new RouteMeasureLocatorNameClass();
routeMeasureLocatorName.RouteFeatureClassName = nameDataset;
routeMeasureLocatorName.RouteIDFieldName = routeIDFieldNameValue;
routeMeasureLocatorName.RouteMeasureUnit = routeMeasureUnit;
routeMeasureLocatorName.RouteWhereClause = string.Empty;
nameDataset = (IName)routeMeasureLocatorName;
return(nameDataset.Open() as IRouteLocator2);
}
// TODO: make routeIdFieldName configurable instead of hard-coded.
public static IRouteLocator2 GetRouteLocator(this IServerObjectHelper serverObjectHelper, long layerId, string routeIdFieldName)
{
var server = (IMapServer4)serverObjectHelper.ServerObject;
var serverDataAccess = (IMapServerDataAccess)server;
var dataSet = (IDataset)serverDataAccess.GetDataSource(server.DefaultMapName, Convert.ToInt32(layerId));
var name = dataSet.FullName;
IRouteLocatorName routeLocatorName = new RouteMeasureLocatorNameClass
{
RouteFeatureClassName = name,
RouteIDFieldName = routeIdFieldName,
RouteMeasureUnit = esriUnits.esriMiles
};
name = (IName)routeLocatorName;
var routeLocator = (IRouteLocator2)name.Open();
return(routeLocator);
}
/// <summary>
/// 线性参考代码
/// </summary>
/// <param name="_pRouteFC"></param>
/// <param name="_pPKName"></param>
/// <param name="_pID"></param>
/// <param name="_pFrom"></param>
/// <param name="_pTo"></param>
/// <returns></returns>
IPolyline FindRoutByMeasure(IFeatureClass _pRouteFC, string _pPKName,object _pID, double _pFrom, double _pTo)
{
IDataset pDataset = (IDataset)_pRouteFC;
IName pName = pDataset.FullName;
IRouteLocatorName pRouteLocatorName = new RouteMeasureLocatorNameClass();
pRouteLocatorName.RouteFeatureClassName = pName;
pRouteLocatorName.RouteIDFieldName = _pPKName;
pRouteLocatorName.RouteMeasureUnit = esriUnits.esriFeet;
pName = (IName)pRouteLocatorName;
IRouteLocator2 pRouteLocator = (IRouteLocator2)pName.Open();
IRouteLocation pRouteLoc = new RouteMeasureLineLocationClass();
pRouteLoc.MeasureUnit = esriUnits.esriFeet;
pRouteLoc.RouteID = _pID;
IRouteMeasureLineLocation rMLineLoc = (IRouteMeasureLineLocation)pRouteLoc;
rMLineLoc.FromMeasure = _pFrom;
rMLineLoc.ToMeasure = _pTo;
IGeometry pGeo = null;
esriLocatingError locError;
pRouteLocator.Locate(pRouteLoc , out pGeo, out locError);
return pGeo as IPolyline;
}
/// <summary>
/// 动态分段，作者：刘宇
/// </summary>
/// <param name="_pRouteFC"></param>
/// <param name="_pPKName"></param>
/// <param name="_pEventTable"></param>
/// <param name="_pFKName"></param>
/// <param name="_pFrom"></param>
/// <param name="_pTo"></param>
/// <returns></returns>
IFeatureClass EventTable2FeatureClass(IFeatureClass _pRouteFC, string _pPKName, ITable _pEventTable, string _pFKName, string _pFrom, string _pTo)
{
IDataset pDataset = (IDataset)_pRouteFC;
IName pName = pDataset.FullName;
IRouteLocatorName pRouteLocatorName = new RouteMeasureLocatorNameClass();
pRouteLocatorName.RouteFeatureClassName = pName;
pRouteLocatorName.RouteIDFieldName = _pPKName;
pRouteLocatorName.RouteMeasureUnit = esriUnits.esriFeet;
pName = (IName)pRouteLocatorName;
IRouteEventProperties2 pRouteProp = new RouteMeasureLinePropertiesClass();
pRouteProp.AddErrorField = true;
pRouteProp.EventMeasureUnit = esriUnits.esriFeet;
pRouteProp.EventRouteIDFieldName = _pFKName;
IRouteMeasureLineProperties rMLineProp = (IRouteMeasureLineProperties)pRouteProp;
rMLineProp.FromMeasureFieldName = _pFrom;
rMLineProp.ToMeasureFieldName = _pTo;
IDataset pDs = (IDataset)_pEventTable;
IName pNTableName = pDs.FullName;
IRouteEventSourceName pRouteEventSourceName = new RouteEventSourceNameClass();
pRouteEventSourceName.EventTableName = pNTableName;
pRouteEventSourceName.EventProperties = (IRouteEventProperties)pRouteProp;
pRouteEventSourceName.RouteLocatorName = pRouteLocatorName;
pName = (IName)pRouteEventSourceName;
IFeatureClass pFeatureClass = (IFeatureClass)pName.Open();
return pFeatureClass;
}
