Distance

The response format. The default response format is html.
Values:   html | json

Description: The geometry from which the distance is to be measured. The structure of the geometry is same as the structure of the JSON geometry objects returned by the ArcGIS REST API. The use of simple syntax is not supported.

JSON structures:

Syntax:

{"geometryType" : "<esriGeometryPoint | esriGeometryPolyline | esriGeometryEnvelope | esriGeometryPolygon | esriGeometryMultipoint>","geometry" : <geometry1> }

Example:

{
  "geometryType" : "esriGeometryPoint",
  "geometry" : 
  {
    "x" : -118.15, "y" : 33.80
  }
}

Description: The geometry to which the distance is to be measured. The structure of the geometry is the same as the structure of the JSON geometry objects returned by the ArcGIS REST API. The use of simple syntax is not supported.

JSON structures

Syntax:

{"geometryType" : "<esriGeometryPoint | esriGeometryPolyline | esriGeometryEnvelope | esriGeometryPolygon | esriGeometryMultipoint>","geometry" : <geometry1> }

Example:

{
  "geometryType" : "esriGeometryPoint",
  "geometry" : 
  {
    "x" : -95.23, "y" : 31.71;
  }
}

Description: The well-known ID or a spatial reference JSON object for input geometries. The spatial reference can be either a PCS or a GCS. For a list of valid WKID values, see Projected coordinate systems and Geographic coordinate systems.

Description: (Optional) Specifies the units for measuring distance between the geometry1 and geometry2 geometries. For a list of valid units, see esriSRUnitType constants and esriSRUnit2Type constants.

For planar distance:

If distanceUnit is not specified, the distance is in the units of the given spatial reference. If distanceUnit is specified, the unit must be compatible with the given spatial reference. That is, if sr is a PCS, then distanceUnit must be linear. If sr is a GCS, then distanceUnit must be angular.

For geodesic distance:

If distanceUnit is not specified, the distance is measured in meters. If distanceUnit is specified, the unit must be linear.

Description: (Optional) If geodesic is set to true, then the geodesic distance between the geometry1 and geometry2 geometries is returned. Geodesic distance is the shortest path between two points along the ellipsoid of the earth. If geodesic is set to false or not specified, the planar distance is returned. The default value is false.