spatialReference

The spatialReference object is located at the top level of the JSON hierarchy. A spatial reference can be defined using a Well-Known ID (WKID) or Well-Known Text (WKT). The default tolerance and resolution values for the associated Coordinate Reference System (CRS) are used.

A spatial reference can optionally include a definition for a vertical coordinate system (VCS), which is used to interpret a geometries z values.

Related:

cmn::3DSceneLayer, psl::3DSceneLayer, psl::3DSceneLayer, cmn::fullExtent, bld::layer

Properties

Property	Type	Description
latestVcsWkid	integer	The current WKID value of the vertical coordinate system.
latestWkid	integer	Identifies the current WKID value associated with the same spatial reference. For example a WKID of '102100' (Web Mercator) has a latestWKid of '3857'.
vcsWkid	integer	The WKID value of the vertical coordinate system.
wkid	integer	WKID, or Well-Known ID, of the CRS. Specify either WKID or WKT of the CRS.
wkt	string	WKT, or Well-Known Text, of the CRS. Specify either WKT or WKID of the CRS but not both.

Examples

Example: spatial reference

 {
  "wkid": 103142,
  "latestWkid": 6565,
  "vcsWkid": 105703,
  "latestVcsWkid": 6360
} 

Example: custom spatial reference

 {
  "wkt": "PROJCS[\"Austria_Central_Zone\",GEOGCS[\"GCS_MGI_Ferro\",DATUM[\"D_MGI\",SPHEROID[\"Bessel_1841\",6377397.155,299.1528128]],PRIMEM[\"Ferro\",-17.66666666666667],UNIT[\"Degree\",0.0174532925199433]],PROJECTION[\"Transverse_Mercator\"],PARAMETER[\"False_Easting\",0.0],PARAMETER[\"False_Northing\",-5000000.0],PARAMETER[\"Central_Meridian\",13.33333333333333],PARAMETER[\"Scale_Factor\",1.0],PARAMETER[\"Latitude_Of_Origin\",0.0],UNIT[\"Meter\",1.0]]"
}