What would be required to enable buildings in the positron style?

[mhkeller]

I see that using the liberty style, when you zoom in you get nice 3d buildings. Is this possible using the positron style? Is that something that exists in the style.json or elsewhere? Thanks for such a neat project.

[hyperknot]

Hi,

You can do this with the Maputnik editor.

Click Customize Liberty:

Select Building / Building 3D:

Copy the text from JSON editor:

{
  "id": "building-3d",
  "type": "fill-extrusion",
  "source": "openmaptiles",
  "source-layer": "building",
  "minzoom": 14,
  "paint": {
    "fill-extrusion-base": [
      "get",
      "render_min_height"
    ],
    "fill-extrusion-color": "hsl(35,8%,85%)",
    "fill-extrusion-height": [
      "get",
      "render_height"
    ],
    "fill-extrusion-opacity": 0.8
  }
}

Click Customize Positron.

Click Add layer:

Paste the copied JSON information into JSON Editor.

Change the order, such that building-3d is next to building.

Modify building-s max zoom to be on z14.

When done, click the Export button and download the JSON. You'll need to host this yourself, probably next to your web app.

For your convenience, here is the exported JSON:

positron_3d.json

[hyperknot]

It looks nice, maybe I'll include it as official style.

[mhkeller]

Wow thanks so much! Looks great! And thanks for such a detailed reply.