DIY vector mapping - Fri, Sep 2, 2022

Toolchain for creating custom self-hosted vector maps (Tippecanoe, Maplibre GL, TileServer-GL), adding a bit of geospatial bling to Flight Sim blog posts

Intro

This post is testing HTML-in-Markdown embedding of a custom MapLibre GL Map. I’ll probably use this code in future to add some flair to flight simulator posts.

Points are filtered in order of:

Map vector tiles were created from raw data using the MapBox Tippecanoe tool.

Static Maps

Tileserver-GL can render static images based on parameters given in the URL.

English Channel

Interactive Maps

It can also serve vector tiles to an embedded map renderer, like Maplibre GL.

Click, drag, and scroll to see how the map filters data points based on zoom-level.

Zoom right in and you should see taxiway-level features.

Attributions

Runway & taxiway shape data © OpenStreetMap contributors.

Airport metadata courtesy of OurAirports.

Made with Natural Earth.

The map style is my own work. The JSON code is below, if you wish to recreate it. Any use of OSM data must have appropriate attribution.

Code sample

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{
 "version": 8,
 "name": "Radar",
 "metadata": {"maputnik:renderer": "mbgljs"},
 "sources": {
   "natural_earth.vector": {
     "type": "vector",
     "url": "https://{your_tile_source.json}"
   },
   "latest.planet": {
     "type": "vector",
     "attribution": "<a href='http://openstreetmap.org/copyright'>© OpenStreetMap contributors</a>",
     "url": "https://{your_tile_source.json}"
   },
   "ICAO": {
     "type": "vector",
     "url": "https://{your_tile_source.json}"
   },
   "Graticules_20": {
     "type": "vector",
     "url": "https://{your_tile_source.json}"
   }
 },
 "sprite": "https://{your_url}/sprites/",
 "glyphs": "https://{your_url}/fonts/{fontstack}/{range}.pbf",
 "layers": [
   {"id": "terrain", "type": "background"},
   {
     "id": "water",
     "type": "fill",
     "source": "natural_earth.vector",
     "source-layer": "water",
     "paint": {
       "fill-color": "rgba(0, 7, 79, 1)",
       "fill-outline-color": "rgba(24, 125, 0, 1)"
     }
   },
   {
     "id": "graticules",
     "type": "line",
     "source": "Graticules_20",
     "source-layer": "ne_50m_graticules_20",
     "paint": {
       "line-color": "rgba(191, 180, 155, 1)",
       "line-dasharray": [50, 50],
       "line-width": 0.5,
       "line-opacity": 0.5
     }
   },
   {
     "id": "aeroways_2",
     "type": "line",
     "source": "latest.planet",
     "source-layer": "osm",
     "filter": ["all", ["==", "aeroway", "taxiway"]],
     "layout": {"line-cap": "butt", "line-join": "round"},
     "paint": {
       "line-color": "rgba(175, 175, 63, 1)",
       "line-dasharray": [1],
       "line-opacity": 0.5,
       "line-width": 2,
       "line-gap-width": 3
     }
   },
   {
     "id": "aeroways_1",
     "type": "line",
     "source": "latest.planet",
     "source-layer": "osm",
     "filter": ["all", ["==", "aeroway", "runway"]],
     "layout": {
       "line-cap": "square",
       "line-join": "miter",
       "line-round-limit": 10
     },
     "paint": {
       "line-color": "rgba(255, 255, 255, 1)",
       "line-width": 6,
       "line-dasharray": [1],
       "line-opacity": 0.5,
       "line-gap-width": 2
     }
   },
   {
     "id": "ICAO_points_else",
     "type": "circle",
     "source": "ICAO",
     "source-layer": "gps_codes",
     "minzoom": 9,
     "filter": [
       "!",
       [
         "any",
         [
           "case",
           ["==", ["typeof", ["get", "type"]], "string"],
           ["==", ["get", "type"], "small_airport"],
           false
         ],
         [
           "case",
           ["==", ["typeof", ["get", "type"]], "string"],
           ["==", ["get", "type"], "medium_airport"],
           false
         ],
         [
           "case",
           ["==", ["typeof", ["get", "type"]], "string"],
           ["==", ["get", "type"], "large_airport"],
           false
         ]
       ]
     ],
     "paint": {
       "circle-color": "rgba(149, 0, 255, 0)",
       "circle-stroke-color": "rgba(206, 255, 0, 1)",
       "circle-stroke-width": 1,
       "circle-radius": 2
     }
   },
   {
     "id": "ICAO_points_small",
     "type": "circle",
     "source": "ICAO",
     "source-layer": "gps_codes",
     "minzoom": 6,
     "filter": ["all", ["has", "gps_code"], ["==", "type", "small_airport"]],
     "paint": {
       "circle-color": "rgba(149, 0, 255, 0)",
       "circle-stroke-color": "rgba(0, 79, 255, 1)",
       "circle-stroke-width": 1,
       "circle-radius": 2
     }
   },
   {
     "id": "ICAO_points_medium",
     "type": "circle",
     "source": "ICAO",
     "source-layer": "gps_codes",
     "minzoom": 5,
     "filter": ["all", ["has", "gps_code"], ["==", "type", "medium_airport"]],
     "paint": {
       "circle-color": "rgba(149, 0, 255, 1)",
       "circle-stroke-color": "rgba(136, 192, 218, 1)",
       "circle-stroke-width": 1,
       "circle-radius": 2
     }
   },
   {
     "id": "ICAO_points_large",
     "type": "circle",
     "source": "ICAO",
     "source-layer": "gps_codes",
     "filter": ["all", ["has", "gps_code"], ["==", "type", "large_airport"]],
     "paint": {
       "circle-color": "rgba(235, 0, 255, 1)",
       "circle-stroke-color": "rgba(3, 20, 189, 1)",
       "circle-stroke-width": 1,
       "circle-radius": 4,
       "circle-blur": 0.5
     }
   },
   {
     "id": "ICAO_labels_else",
     "type": "symbol",
     "source": "ICAO",
     "source-layer": "gps_codes",
     "minzoom": 9.5,
     "filter": [
       "!",
       [
         "any",
         [
           "case",
           ["==", ["typeof", ["get", "type"]], "string"],
           ["==", ["get", "type"], "small_airport"],
           false
         ],
         [
           "case",
           ["==", ["typeof", ["get", "type"]], "string"],
           ["==", ["get", "type"], "medium_airport"],
           false
         ],
         [
           "case",
           ["==", ["typeof", ["get", "type"]], "string"],
           ["==", ["get", "type"], "large_airport"],
           false
         ]
       ]
     ],
     "layout": {
       "text-field": [
         "step",
         ["zoom"],
         ["get", "gps_code"],
         0,
         ["get", "gps_code"],
         9,
         ["concat", ["get", "gps_code"], "\n", ["get", "name"]]
       ],
       "text-allow-overlap": false,
       "text-ignore-placement": false,
       "symbol-z-order": "auto",
       "text-padding": 10,
       "text-anchor": "top",
       "text-optional": true,
       "text-variable-anchor": ["left", "right", "top", "bottom"],
       "icon-allow-overlap": true,
       "text-font": ["Open Sans Regular", "Arial Unicode MS Regular"],
       "symbol-avoid-edges": true,
       "symbol-spacing": 100,
       "text-size": 12
     },
     "paint": {"text-color": "rgba(206, 255, 0, 1)", "text-opacity": 1}
   },
   {
     "id": "ICAO_labels_small",
     "type": "symbol",
     "source": "ICAO",
     "source-layer": "gps_codes",
     "minzoom": 8,
     "filter": ["all", ["has", "gps_code"], ["==", "type", "small_airport"]],
     "layout": {
       "text-field": [
         "step",
         ["zoom"],
         ["get", "gps_code"],
         0,
         ["get", "gps_code"],
         9,
         ["concat", ["get", "gps_code"], "\n", ["get", "name"]]
       ],
       "text-allow-overlap": false,
       "text-ignore-placement": false,
       "symbol-z-order": "auto",
       "text-padding": 10,
       "text-anchor": "top",
       "text-optional": true,
       "text-variable-anchor": ["left", "right", "top", "bottom"],
       "icon-allow-overlap": true,
       "text-font": ["Open Sans Regular", "Arial Unicode MS Regular"],
       "symbol-avoid-edges": true,
       "symbol-spacing": 100,
       "text-size": 12
     },
     "paint": {"text-color": "rgba(0, 79, 255, 1)", "text-opacity": 1}
   },
   {
     "id": "ICAO_labels_medium",
     "type": "symbol",
     "source": "ICAO",
     "source-layer": "gps_codes",
     "minzoom": 6,
     "filter": ["all", ["has", "gps_code"], ["==", "type", "medium_airport"]],
     "layout": {
       "text-field": [
         "step",
         ["zoom"],
         ["get", "gps_code"],
         0,
         ["get", "gps_code"],
         8,
         ["concat", ["get", "gps_code"], "\n", ["get", "name"]]
       ],
       "text-allow-overlap": false,
       "text-ignore-placement": false,
       "symbol-z-order": "auto",
       "text-padding": 10,
       "text-anchor": "top",
       "text-optional": true,
       "text-variable-anchor": ["left", "right", "top", "bottom"],
       "icon-allow-overlap": true,
       "text-font": ["Open Sans Regular", "Arial Unicode MS Regular"],
       "symbol-avoid-edges": true,
       "symbol-spacing": 100,
       "text-size": 12
     },
     "paint": {"text-color": "rgba(167, 62, 173, 1)", "text-opacity": 1}
   },
   {
     "id": "ICAO_labels_large",
     "type": "symbol",
     "source": "ICAO",
     "source-layer": "gps_codes",
     "minzoom": 4,
     "filter": ["all", ["has", "gps_code"], ["==", "type", "large_airport"]],
     "layout": {
       "text-field": [
         "step",
         ["zoom"],
         ["get", "gps_code"],
         0,
         ["get", "gps_code"],
         6,
         ["concat", ["get", "gps_code"], "\n", ["get", "name"]]
       ],
       "text-allow-overlap": false,
       "text-ignore-placement": false,
       "symbol-z-order": "auto",
       "text-padding": 10,
       "text-anchor": "top",
       "text-optional": true,
       "text-variable-anchor": ["left", "right", "top", "bottom"],
       "icon-allow-overlap": true,
       "text-font": ["Open Sans Regular", "Arial Unicode MS Regular"],
       "symbol-avoid-edges": true,
       "symbol-spacing": 100,
       "text-size": ["literal", 15],
       "icon-anchor": "left",
       "text-justify": "center"
     },
     "paint": {
       "text-color": "rgba(235, 0, 255, 1)",
       "text-opacity": 1,
       "text-translate": [0, 0]
     }
   },
   {
     "id": "rivers",
     "type": "line",
     "source": "natural_earth.vector",
     "source-layer": "river",
     "minzoom": 4,
     "paint": {"line-color": "rgba(3, 11, 96, 1)"}
   }
 ],
 "attribution": "<a href='http://openstreetmap.org/copyright'>© OpenStreetMap contributors</a>",
 "id": "j148gjx7r",
 "owner": "David Grierson"
}

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