Try mapbox-gl 3D extrude fill layers

Données gracieuseté de:

http://donnees.ville.montreal.qc.ca/dataset/polygones-arrondissements/resource/e9b0f927-8f75-458c-8fda-b5da65cc8b73
http://donnees.ville.montreal.qc.ca/dataset/population-recensement/resource/370b0c30-886a-435b-9049-bcc5a5dd2e80

Inspiration:

https://www.mapbox.com/mapbox-gl-js/example/3d-extrusion-floorplan/

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