/// <summary>
/// Handler operation Identify Route
/// </summary>
/// <param name="boundVariables">list of variables bound</param>
/// <param name="operationInput">input of operation</param>
/// <param name="outputFormat">format of output</param>
/// <param name="requestProperties">list of request properties</param>
/// <param name="responseProperties">list of response properties </param>
/// <returns>response in byte</returns>
private byte[] IdentifyRouteOperHandler(NameValueCollection boundVariables, JsonObject operationInput, string outputFormat, string requestProperties, out string responseProperties)
{
responseProperties = "{\"Content-Type\" : \"application/json\"}";
string methodName = MethodBase.GetCurrentMethod().Name;
int routeLayerID = Convert.ToInt32(boundVariables["RouteLayersID"], CultureInfo.InvariantCulture);
esriUnits routeMeasureUnit = DSUtility.GetMeasureUnit(operationInput, MeasureUnit.routeMeasureUnit);
IFeatureClass featureClass = this.GetRouteFeatureClass(routeLayerID);
string routeIDFieldNameValue = DSUtility.GetRouteIDFieldName(operationInput, featureClass.OIDFieldName);
IRouteLocator2 routeLocator = DSUtility.GetRouteLocator(featureClass, routeIDFieldNameValue, routeMeasureUnit);
double?tolerance;
bool found = operationInput.TryGetAsDouble("tolerance", out tolerance);
if (!found || !tolerance.HasValue)
{
tolerance = 0.0;
}
JsonObject jsonLocation;
if (!operationInput.TryGetJsonObject("location", out jsonLocation))
{
throw new ArgumentException("Invalid location", methodName);
}
IPoint location = Conversion.ToGeometry(jsonLocation, esriGeometryType.esriGeometryPoint) as IPoint;
if (location == null)
{
throw new ArgumentException("Invalid location", methodName);
}
IEnvelope envelope = location.Envelope;
envelope.Expand(tolerance.Value, tolerance.Value, false);
IRouteMeasurePointLocation routeMeasurePointLocation = new RouteMeasurePointLocationClass();
IRouteLocation routeLocation;
IFeature feature;
JsonObject result = new JsonObject();
List <JsonObject> measures = new List <JsonObject>();
IEnumRouteIdentifyResult enumResult = routeLocator.Identify(envelope, string.Empty);
for (int i = 1; i <= enumResult.Count; i++)
{
enumResult.Next(out routeLocation, out feature);
routeMeasurePointLocation = (IRouteMeasurePointLocation)routeLocation;
JsonObject measure = new JsonObject();
measure.AddString("routeID", routeLocation.RouteID.ToString());
measure.AddDouble("measure", routeMeasurePointLocation.Measure);
measures.Add(measure);
}
result.AddArray("location", measures.ToArray());
return(result.JsonByte());
}
/// <summary>
/// Handler operation Identify Route Ex
/// </summary>
/// <param name="boundVariables">list of variables bound</param>
/// <param name="operationInput">input of operation</param>
/// <param name="outputFormat">format of output</param>
/// <param name="requestProperties">list of request properties</param>
/// <param name="responseProperties">list of response properties </param>
/// <returns>response in byte</returns>
private byte[] IdentifyRouteExOperHandler(NameValueCollection boundVariables, JsonObject operationInput, string outputFormat, string requestProperties, out string responseProperties)
{
responseProperties = "{\"Content-Type\" : \"application/json\"}";
string methodName = MethodBase.GetCurrentMethod().Name;
int routeLayerID = Convert.ToInt32(boundVariables["RouteLayersID"], CultureInfo.InvariantCulture);
esriUnits routeMeasureUnit = DSUtility.GetMeasureUnit(operationInput, MeasureUnit.routeMeasureUnit);
esriSegmentExtension segmentExtension = DSUtility.GetSegmentExtension(operationInput);
IFeatureClass featureClass = this.GetRouteFeatureClass(routeLayerID);
JsonObject jsonLocation;
if (!operationInput.TryGetJsonObject("location", out jsonLocation))
{
throw new ArgumentException("Invalid location", methodName);
}
IPoint location = Conversion.ToGeometry(jsonLocation, esriGeometryType.esriGeometryPoint) as IPoint;
if (location == null)
{
throw new ArgumentException("Invalid location", methodName);
}
string routeIDFieldNameValue = DSUtility.GetRouteIDFieldName(operationInput);
IFields fields = featureClass.Fields;
int indexField = fields.FindField(routeIDFieldNameValue);
if (indexField == -1)
{
throw new DynamicSegmentationException(string.Format(CultureInfo.InvariantCulture, "routeIDFieldName {0} not found!", routeIDFieldNameValue));
}
object routeID;
bool found = operationInput.TryGetObject("routeID", out routeID);
if (!found)
{
throw new DynamicSegmentationException("routeID not valid");
}
double?tolerance;
found = operationInput.TryGetAsDouble("tolerance", out tolerance);
if (!found || !tolerance.HasValue)
{
tolerance = 0.0;
}
IField field = fields.get_Field(indexField);
this.CheckRouteID(routeID, field);
IRouteLocator2 routeLocator = DSUtility.GetRouteLocator(featureClass, routeIDFieldNameValue, routeMeasureUnit);
IQueryFilter queryFilter = new QueryFilterClass();
queryFilter.SubFields = routeLocator.RouteIDFieldName;
queryFilter.AddField(routeLocator.RouteFeatureClass.ShapeFieldName);
string where = string.Format("{0} = {1}{2}{1}", routeLocator.RouteIDFieldNameDelimited, routeLocator.RouteIDIsString ? "'" : string.Empty, routeID);
queryFilter.WhereClause = where;
IPoint locationNearest = null;
IFeatureCursor featureCursor = null;
try
{
featureCursor = routeLocator.RouteFeatureClass.Search(queryFilter, true);
IFeature featureRoute = featureCursor.NextFeature();
if (featureRoute == null)
{
throw new DynamicSegmentationException(string.Format(CultureInfo.InvariantCulture, "Feature with value {0} not found!", routeID));
}
IProximityOperator proximityOperator = featureRoute.ShapeCopy as IProximityOperator;
locationNearest = proximityOperator.ReturnNearestPoint(location, segmentExtension);
}
catch
{
throw;
}
finally
{
if (featureCursor != null)
{
Marshal.ReleaseComObject(featureCursor);
}
}
IEnvelope envelope = locationNearest.Envelope;
envelope.Expand(tolerance.Value, tolerance.Value, false);
IRouteMeasurePointLocation routeMeasurePointLocation = new RouteMeasurePointLocationClass();
IRouteLocation routeLocation;
IFeature feature;
JsonObject result = new JsonObject();
List <JsonObject> measures = new List <JsonObject>();
IEnumRouteIdentifyResult enumResult = routeLocator.Identify(envelope, where);
for (int i = 1; i <= enumResult.Count; i++)
{
enumResult.Next(out routeLocation, out feature);
routeMeasurePointLocation = (IRouteMeasurePointLocation)routeLocation;
JsonObject measure = new JsonObject();
measure.AddString("routeID", routeLocation.RouteID.ToString());
measure.AddDouble("measure", routeMeasurePointLocation.Measure);
measure.AddJsonObject("location", Conversion.ToJsonObject(locationNearest, true));
measures.Add(measure);
}
result.AddArray("location", measures.ToArray());
return(result.JsonByte());
}
