Extrusion (3D)

The extrusion tab lets you give polygon features a 3D height, turning flat boundaries into raised shapes. This is useful for visualising population density, building heights, or any numeric property.

Data-Driven

Height is derived from a numeric vector-tile property:

• Property — select the attribute to drive height (e.g. population, area).
• Multiplier — a scaling factor applied to the property value. Use this to adjust heights so they look reasonable on screen.
• Base height — an optional minimum height in metres applied to all features, so that even zero-value features are slightly raised.

Fixed Height

All features are extruded to the same height:

• Height — the extrusion height in metres.

This is useful when you want to create a uniform raised surface — for example, lifting boundaries above a base map for visual emphasis.

Height Stops

Define custom interpolation stops that map data values to heights. You specify 2–6 value/height pairs:

MapLibre interpolates between stops for intermediate values. This gives more control than the data-driven multiplier approach.

None

Disable extrusion. Features render as flat 2D polygons.