Custom Location Extension API Developer's Guide

Quadkey Search

Search for custom geometries by quadkey tile.

A quadkey is a number consisting of digits 0-3 that each subdivide the Mercator projected flat world map into quadrants. Use this search to retrieve the geometries that overlap exactly certain tiles of a quadkey-tile based bitmap display.

The number of geometries in the response should not exceed 1000, and the search space must not comprise more than 150 tiles. Exceeding one of the limits results in an error response. If an application needs more results returned then please contact technical customer support to work on a solution to reduce this.

Resource URI

GET /search/quadkey.json

Resource Parameters

Parameters Required? Description
app_id Yes A URL-safe encoded string obtained during the application registration. See Acquiring Credentials for information on getting credentials.
app_code Yes A URL-safe encoded string obtained during the application registration. See Acquiring Credentials for information on getting credentials.
layer_id Yes Layer ID identifying the layers to be searched. Layer names are not case sensitive. The maximum length of a layer name and the permitted characters can be lookup up in the service via /serviceconfiguration.json
quad_key Yes The quad key number of the map tile area to search from.
geom No local, full or none. Specifies the geometry representation in the result. Default = local. Local geometry is used for map display purposes, returning geometry pieces that cover the given search radius, bounding box or corridor polygon. Full geometry is used for interactive editing, where the original geometry is required. None is used for applications like geofencing, which most of the time want to know only the ids of the geofence points/lines polygones they are in or near.
filter No

An JavaScript expression being evaluated for each geometry matching search query.

Columns value for the geometry are available as defined variables.

When specified, only geometries where expression evaluates to true will be returned.

Example: filter=RATING > 3 && NAME != 'MyPlace23' && NAME.startsWith('Food')

Parameter value must be url encoded when using special characters.

This filter expression is applied after the spatial filtering, hence only to few geometries. Only for the all.json the filter is applied to all geometries, so it can become very slow for big layers. Hence, following substring search expressions use database indexes and are much faster than other filter expressions (for updatable layers):

  • COL_NAME.indexOf("my_substring") >= 0
  • COL_NAME.startsWith("my_prefix")
  • COL_NAME == "str"
  • COL_NAME === "str"
  • COL_NAME != "str"
  • COL_NAME !== "str"
  • COL_NAME.indexOf("str") >= 0
  • COL_NAME.startsWith("str")
  • COL_NAME.like("%str%")
callback No Specifies the function used to wrap the JSON response.