Geovisualization Developer's Guide


The georeference request body is a JSON object sent in the body in a Geovisualization REST API request to specify the lat-lon columns in the dataset to use as the reference to translate to geographical locations. Note that you can run only one georeferencing job per dataset at a time.

Table 1. Georeference Request Elements
Element Data Type Mandatory Description
lat_column String Yes Name of the latitude column where latitude values are found in the dataset, for example "lat"
layer_name String Yes Name of the geographical layer referenced to resolve the lat-lon values. The layer must have the georeference functionality enabled, that is, the property capabilities=['georeference'].
lon_column String Yes Name of the longitude column where longitude values are found in the dataset, for example "lon"
columns_to_extract Array Yes A comma-separated list of the column names to extract from the layer
geom_column String No Name of the geometry column in the layer
predicate String Yes Indicates the spatial relational predicate to be performed on the reference. The value can be one of the following:
  • within: returns the object from the layer that spatially "envelopes" the location (lat,lon)
  • withind: as for within but with a threshold distance (in map units) applied. Values should be greater than 0.0.
  • nearestd: returns the nearest (as the crow flies) object within the specified threshold distance (in map units). Defaults to 0.0.
overwrite Boolean Yes Specifies whether or not to overwrite any existing result values from the georeferencing job

The code example below shows the data structure sent in a request to create a georeference job.

  "layer_name": "{LAYER_NAME}",
  "columns_to_extract": "column_a,column_b,...",
  "geom_column": "geom",
  "lat_column": "",
  "lon_column": "location.lon",
  "predicate": "nearestd",
  "overwrite": false

You cannot use this account to purchase a commercial plan on Developer Portal, as it is already associated to plans with different payment methods.

To purchase a commercial plan on Developer Portal, please register for or sign in with a different HERE Account.

Something took longer than expected.

The project should be available soon under your projects page.

Sorry, our services are not available in this region.

Something seems to have gone wrong. Please try again later.

We've detected that your account is set to Australian Dollars (AUD).
Unfortunately, we do not offer checkouts in AUD anymore.
You can continue using your current plan as normal, but to subscribe to one of our new plans,
please register for a new HERE account or contact us for billing questions on