Map Tile API Developer's Guide

Normal Day Grey Tile

This article shows a request for a color-reduced map tile in daylight mode (used for background maps).

User story

The user wants to obtain an image showing a map of Chicago where the road network is displayed in grey scale to remove the emphasis from the road network itself. The tile requested uses the map schema.

Request Summary

The following list summarizes the elements required to create a request matching the user story and shows, in square brackets, how those elements are used in the example(s) below. Note that the request example also uses the authentication parameters.

Resource: maptile [maptile], see also (resource) type
URL variables: {map id} [newest], see also Requesting the Right Map Version
  {scheme} [], see also scheme
  {zoom}/{column}/{row} [11/525/761], see also The Mercator Projection
  {size} = 256, see also size
  {format} = png8, see also format


The code block below demonstrates a complete request for a map tile.


The response to the request delivers the following grey scale street map image of Chicago:

Figure 1. Normal Day Grey Tile