Rendering maps

For a mapping application stored on a non-transitory machine readable medium of an electronic device, a method comprising:

• receiving map tiles from a mapping service in response to a request for the map tiles needed for a particular map view, each received map tile comprising vector data and construct type information describing constructs located in a map region;
• building a plurality of polygonal meshes for a particular layer of the particular map view by using the vector data and construct type information in at least one map tile, wherein the construct type information specifies the style to be applied to each of the constructs of at least one mesh according to a rendering stylesheet stored at the electronic device;
• combining meshes into a renderable tile for the particular map view;
• and
• rendering the particular map view using the renderable tile.

A non-transitory machine readable medium storing a mapping application which when executed by at least one processing unit renders portions of a map, the mapping application comprising sets of instructions for:

• receiving map tiles from a mapping service in response to a request for the map tiles needed for a particular map view, each map tile comprising vector data describing a map region;
• building a plurality of polygonal meshes for a particular layer of the particular map view using the vector data in at least one map tile, wherein view, a first built mesh defines roads in the map region and a second built mesh defines non-road constructs in the map region;
• combining meshes into a renderable tile for the particular map view;
• and
• rendering the particular map view using the renderable tile.