Over the concluding yoke of weeks quite a few interactive maps accept been released which accept made utilization of the novel extrude property inwards Mapbox GL. All of these maps accept used the extrude belongings to practise 3d buildings on a map. All of the maps thence accept (or could have) used the extrusion belongings amongst the edifice acme information which is already available inwards the default map styles inwards Mapbox Studio.
The Mapbox GL extrude belongings nevertheless tin flame likewise live on used to practise 3d features out of your ain information layers. For representative this San Francisco Lidar Map applies the extrude belongings to San Francisco tree in addition to edifice Lidar data. This Lidar information has been added to the map inwards Mapbox Studio from a GeoJSON file (presumably downloaded from the City of San Francisco). The effect of using this Lidar information is that every bit good every bit visualizing buildings inwards 3d the map likewise extrudes other features, such every bit ships in addition to private trees.
If you lot desire to utilization the extrude belongings amongst your ain information inwards Mapbox GL so you lot remove to offset yesteryear adding your ain data layer inwards Mapbox Studio. If you lot expect at the JavaScript code for the San Francisco Lidar Map you lot tin flame run into that the extrude belongings is beingness applied to the 'DN' belongings of the GeoJSON Lidar data. In other words the map is changing the agency of the Lidar information layer based on the information properties (in this instance the 'DN' property).
In uncomplicated damage - if you lot desire to extrude a belongings on your map you lot remove to accept a belongings inwards your information layer which tin flame live on extruded.
You tin flame larn to a greater extent than nearly how to utilization the Mapbox GL agency specification to define the agency inwards which the information relates to the map agency inwards the Mapbox GL Data-Driven Style Reference section of the Mapbox documentation. In detail you lot should expect at the paragraphs headed the 'Required agency canvas objects for data-driven styles' in addition to the 'Fill layer extrusion, identity function'.
