- URL:https://<LinearReferencingService-url>/eventLayers/<layerId>
- Operations:Append Events, Generate Events, Geometry To Station, Station To Geometry
- Version Introduced:10.6
Description
License:
The ArcGIS Location Referencing license is required to use this resource.
Represents an event layer in a linear referencing geodatabase. An event layer can contain either point or linear events, and it is associated with a linear referencing network.
Request parameters
| Parameter | Details |
|---|---|
| f | Optional parameter to specify the response format. The default response format is html. Values: html | json |
Example usage
Example 1
URL for event layer ID 2.
https://sampleserver/arcgis/rest/services/MyLRS/MapServer/exts/LRServer/eventLayers/2
JSON Response syntax
{
"id" : <layerId>,
"name" : "<layerName>",
"type" : "<layerType>", // one of: esriLRSPointEventLayer, esriLRSLinearEventLayer
"lrsNetworkId" : <networkId>,
"datasetName" : "<datasetName>", // the event name registered in the LRS dataset
"featureClassName" : "<featureClassName>", // the backing feature class name
"unitsOfMeasure" : "<units>",
"measurePrecision" : <precision>,
"isDataVersioned" : <true | false>,
"isBranchVersioned": <true | false>,
"versionName" : "<versionName>",
"dateFormat" : "<sqlDateFormat>", // one of: esriLRSDateFormatStandard, esriLRSDateFormatFileGDB, esriLRSDateFormatOracle
// spatial reference properties of the feature data
"spatialReferenceInfo" : {
"wkid" : <wkid>,
"wkt" : "<wkt>", // WKT is included only when there is no WKID available
"xyResolution" : <xyResolution>,
"xyTolerance" : <xyTolerance>,
"mResolution" : <mResolution>,
"mTolerance" : <mTolerance>
},
"eventIdFieldName" : "<fieldName>",
"routeIdFieldName" : "<fieldName>",
"routeNameFieldName" : "<fieldName>",
"fromMeasureFieldName" : "<fieldName>",
"toMeasureFieldName" : "<fieldName>", // only valid for linear events
"fromDateFieldName" : "<fieldName>",
"toDateFieldName" : "<fieldName>",
"locErrorFieldName" : "<fieldName>",
// line support properties, only valid for linear events
"canSpanRoutes" : <true | false>,
"toRouteIdFieldName" : "<fieldName>",
"toRouteNameFieldName" : "<fieldName>",
// referent offset properties
"hasReferentLocation" : <true | false>,
"referentOffsetUnits" : "<units>",
"fromReferentMethodFieldName" : "<fieldName>",
"fromReferentLocationFieldName" : "<fieldName>",
"fromReferentOffsetFieldName" : "<fieldName>",
"toReferentMethodFieldName" : "<fieldName>", // only valid for linear events
"toReferentLocationFieldName" : "<fieldName>", // only valid for linear events
"toReferentOffsetFieldName" : "<fieldName>", // only valid for linear events
"lrs" : {
"id" : "<id>",
"name" : "<name>"
},
"parentNetwork" : {
"id" : <networkLayerId>,
"name" : "<networkLayerName>",
"type" : "<networkLayerType>"
},
"fields" : [
{
"name" : "<fieldName1>",
"type" : "<fieldType1>",
"alias" : "<fieldAlias1>",
"length" : <length1>,
"editable" : <true | false>,
"nullable" : <true | false>,
"defaultValue" : <defaultValue1>,
"domain" : <domain1>
},
{
"name" : "<fieldName2>",
"type" : "<fieldType2>",
"alias" : "<fieldAlias2>",
"length" : <length2>,
"editable" : <true | false>,
"nullable" : <true | false>,
"defaultValue" : <defaultValue2>,
"domain" : <domain2>
},
...
]
}
JSON Response example
{
"id" : 2,
"name" : "Crash",
"type" : "esriLRSPointEventLayer",
"lrsNetworkId" : 1,
"datasetName" : "Crash",
"featureClassName" : "LRSE_Crash",
"unitsOfMeasure" : "esriMeters",
"measurePrecision" : 6,
"isDataVersioned" : true,
"isBranchVersioned" : true,
"versionName" : "sde.DEFAULT",
"dateFormat" : "esriLRSDateFormatStandard",
"spatialReferenceInfo" : {
"wkid" : 26918,
"xyResolution" : 0.0001,
"xyTolerance" : 0.001,
"mResolution" : 0.0001,
"mTolerance" : 0.001
},
"eventIdFieldName" : "event_id",
"routeIdFieldName" : "routeid",
"routeNameFieldName" : null,
"fromMeasureFieldName" : "meas",
"toMeasureFieldName" : null,
"fromDateFieldName" : "from_date",
"toDateFieldName" : "to_date",
"locErrorFieldName" : "locerror",
"canSpanRoutes" : false,
"hasReferentLocation" : true,
"referentOffsetUnits" : "esriFeet",
"fromReferentMethodFieldName" : "ref_method",
"fromReferentLocationFieldName" : "ref_location",
"fromReferentOffsetFieldName" : "ref_offset",
"lrs" : {
"id" : "DFB23B7D-69D1-460F-B7E0-0FB190D23B96",
"name" : "DOT_LRS"
},
"parentNetwork" : {
"id" : 10,
"name" : "State Highways",
"type" : "esriLRSNetworkLayer"
},
"fields" : [
{
"name" : "event_id",
"type" : "esriFieldTypeInteger",
"alias" : "Event ID",
"editable" : true,
"nullable" : false,
"defaultValue" : null,
"domain" : null
},
{
"name" : "desc",
"type" : "esriFieldTypeString",
"alias" : "Description",
"length" : 100,
"editable" : true,
"nullable" : true,
"defaultValue" : "N/A",
"domain" : null
}
]
}