Geometry To Measure—REST APIs | Documentación de ArcGIS Enterprise

URL:https://<network-layer-url>/geometryToMeasure
Version Introduced:10.6

Description

Licencia:

The ArcGIS Location Referencing license is required to use this resource.

This operation converts one or more geographic locations into measure values along a set of routes.

If a point location cannot be converted to a measure value, a status message is returned with the reason the conversion failed. The following table lists the possible locating statuses.

Status messages

The following table contains an enumeration of the possible locating statuses:


Status	Description
esriLocatingOK	Locating was successful.
esriLocatingMultipleLocation	Locating was successful and the input point was located on more than one route.
esriLocatingCannotFindRoute	The route does not exist.
esriLocatingRouteShapeEmpty	The route does not have a shape or the shape is empty.
esriLocatingRouteMeasuresNull	The route does not have measures or the measures are null.
esriLocatingRouteNotMAware	The route is not an m-aware polyline.
esriLocatingCannotFindLocation	The route location's shape cannot be found because the route has no measures or the route location's measures do not exist on the route.

Request parameters


Parameter	Details
f	Optional parameter to specify the response format. The default response format is html. Values: html \| json
locations	Description: A required parameter that lists routes and point locations to convert to measure values. If the route ID is omitted for a given point, the point is located on all nearby routes within the tolerance. In that case, the response contains multiple route IDs and measure values corresponding to the single point location. Syntax: `[ { "routeId" : "<routeId1>", // route ID is optional, may be omitted or null "geometry" : { "x" : <x1>, "y" : <y1> } }, { "routeId" : "<routeId2>", // route ID is optional, may be omitted or null "geometry" : { "x" : <x2>, "y" : <y2> } }, ... ]`
tolerance	Description: The maximum distance in map units to snap a point to the closest location on a nearby route. If a point is farther than the tolerance from a route, an indication is returned that the point can't be located. If a route ID is provided in the locations parameter in the request, the tolerance parameter is ignored and only the route ID is considered.
temporalViewDate	The time instant to use as a temporal view date when locating route features. The parameter value is a number that represents the number of milliseconds since epoch (January 1, 1970) in UTC. Syntax: temporalViewDate=<timeInstant> Example: temporalViewDate=1230768000000 (1 Jan 2009 00:00:00 GMT)
inSR	The spatial reference of the input geometry. The spatial reference can be specified as either a Well-Known ID (WKID) or a spatial reference JSON object. If inSR is not specified, the geometry is assumed to be in the spatial reference of the map.
outSR	The spatial reference of the returned geometry. The spatial reference can be specified as either a Well-Known ID (WKID) or a spatial reference JSON object. If outSR is not specified, the output geometries are in the spatial reference specified by inSR. If inSR is also not specified, the output geometries are in the spatial reference of the map.
gdbVersion	Optional parameter to specify the geodatabase version to use. If this parameter is not specified, the published map's version is used. Syntax: gdbVersion=<version> Example: gdbVersion="user1.version1"

Example usage

Example 1

URL for converting a single point to a station

https://sampleserver/arcgis/rest/services/MyLRS/MapServer/exts/LRServer/networkLayers/1/geometryToMeasure?f=json&locations=[{"routeId":"I90","geometry":{"x":-8479115,"y":5326520}}]&tolerance=50&inSR=102100

Example 2

URL for converting multiple points to stations

Example 3

URL for converting a single point on any nearby route to one or more stations

https://sampleserver/arcgis/rest/services/MyLRS/MapServer/exts/LRServer/networkLayers/1/geometryToMeasure?f=json&locations=[{"geometry":{"x":-8479100,"y":5326500}}]&tolerance=100&inSR=102100

JSON Response syntax

{
  "unitsOfMeasure" : "<units>",
  "spatialReference" : <spatialReference>,
  "locations" : [
    { // result(s) for the first point location
      "status" : "<status1>",
      "results" : [
        {
          "routeId" : "<routeId1>",
          "measure" : <measure1>,
          "distance" : <distance1>, // in xy units of spatial reference, or in meters if the network's spatial reference is a geographic coordinate system
          "geometryType" : "<geometryType1>",  // esriGeometryPoint
          "geometry" : { "x" : <x>, "y" : <y> }
        },
        ...
      ]
    },
    { // result(s) for the second point location
      "status" : "<status2>",
      "results" : [
        {
          "routeId" : "<routeId2>",
          "measure" : <measure2>,
          "distance" : <distance2>,
          "geometryType" : "<geometryType2>",
          "geometry" : { "x" : <x>, "y" : <y> }
        },
        ...
      ]
    },
    ...
  ]
}

JSON Response example

{
  "unitsOfMeasure" : "esriMeters",
  "spatialReference" : { "wkid": 102100 },
  "locations" : [
    {
      "status" : "esriLocatingOK",
      "results" : [
        {
          "routeId" : "I90",
          "measure" : 25.05,
          "distance" : 1.23,
          "geometryType" : "esriGeometryPoint",
          "geometry" : { "x" : -8479118.349, "y" : 5326520.134 }
        }
      ]
    }
  ]
}

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