82 pmtiles

Visualizing PMTiles with leafmap

PMTiles is a single-file archive format for tiled data. A PMTiles archive can be hosted on a commodity storage platform such as S3, and enables low-cost, zero-maintenance map applications that are "serverless" - free of a custom tile backend or third party provider.

The PMTiles functionality for leafmap is based on the folium-pmtiles package. Credits to Jt Miclat.

In [1]:

# %pip install -U leafmap pmtiles

# %pip install -U leafmap pmtiles

In [2]:

import leafmap.foliumap as leafmap

import leafmap.foliumap as leafmap

Remote PMTiles¶

Source Cooperative¶

Google-Microsoft Open Buildings - combined by VIDA

In [3]:

url = "https://data.source.coop/vida/google-microsoft-open-buildings/pmtiles/go_ms_building_footprints.pmtiles"
metadata = leafmap.pmtiles_metadata(url)
print(f"layer names: {metadata['layer_names']}")
print(f"bounds: {metadata['bounds']}")

url = "https://data.source.coop/vida/google-microsoft-open-buildings/pmtiles/go_ms_building_footprints.pmtiles" metadata = leafmap.pmtiles_metadata(url) print(f"layer names: {metadata['layer_names']}") print(f"bounds: {metadata['bounds']}")

layer names: ['building_footprints']
bounds: [-160.221701, -55.9756776, 166.709685, 74.7731168]

In [4]:

m = leafmap.Map(center=[20, 0], zoom=2, height="800px")
m.add_basemap("CartoDB.DarkMatter")
m.add_basemap("Esri.WorldImagery", show=False)

style = {
    "version": 8,
    "sources": {
        "example_source": {
            "type": "vector",
            "url": "pmtiles://" + url,
            "attribution": "PMTiles",
        }
    },
    "layers": [
        {
            "id": "buildings",
            "source": "example_source",
            "source-layer": "building_footprints",
            "type": "fill",
            "paint": {"fill-color": "#3388ff", "fill-opacity": 0.5},
        },
    ],
}

# style = leafmap.pmtiles_style(url)  # Use default style

m.add_pmtiles(
    url, name="Buildings", style=style, overlay=True, show=True, zoom_to_layer=False
)

html = "Source: <a href='https://beta.source.coop/repositories/vida/google-microsoft-open-buildings/description' target='_blank'>source.coop</a>"
m.add_html(html, position="bottomright")

m

m = leafmap.Map(center=[20, 0], zoom=2, height="800px") m.add_basemap("CartoDB.DarkMatter") m.add_basemap("Esri.WorldImagery", show=False) style = { "version": 8, "sources": { "example_source": { "type": "vector", "url": "pmtiles://" + url, "attribution": "PMTiles", } }, "layers": [ { "id": "buildings", "source": "example_source", "source-layer": "building_footprints", "type": "fill", "paint": {"fill-color": "#3388ff", "fill-opacity": 0.5}, }, ], } # style = leafmap.pmtiles_style(url) # Use default style m.add_pmtiles( url, name="Buildings", style=style, overlay=True, show=True, zoom_to_layer=False ) html = "Source: source.coop" m.add_html(html, position="bottomright") m

Basemap can only be one of the following: OpenStreetMap, ROADMAP, SATELLITE, TERRAIN, HYBRID, FWS NWI Wetlands, FWS NWI Wetlands Raster, NLCD 2021 CONUS Land Cover, NLCD 2019 CONUS Land Cover, NLCD 2016 CONUS Land Cover, NLCD 2013 CONUS Land Cover, NLCD 2011 CONUS Land Cover, NLCD 2008 CONUS Land Cover, NLCD 2006 CONUS Land Cover, NLCD 2004 CONUS Land Cover, NLCD 2001 CONUS Land Cover, USGS NAIP Imagery, USGS NAIP Imagery False Color, USGS NAIP Imagery NDVI, USGS Hydrography, USGS 3DEP Elevation, USGS 3DEP Elevation Index, ESA WorldCover 2020, ESA WorldCover 2020 S2 FCC, ESA WorldCover 2020 S2 TCC, ESA WorldCover 2021, ESA WorldCover 2021 S2 FCC, ESA WorldCover 2021 S2 TCC, USGS.Imagery, BaseMapDE.Color, BaseMapDE.Grey, BasemapAT.basemap, BasemapAT.grau, BasemapAT.highdpi, BasemapAT.orthofoto, BasemapAT.overlay, BasemapAT.surface, BasemapAT.terrain, CartoDB.DarkMatter, CartoDB.DarkMatterNoLabels, CartoDB.DarkMatterOnlyLabels, CartoDB.Positron, CartoDB.PositronNoLabels, CartoDB.PositronOnlyLabels, CartoDB.Voyager, CartoDB.VoyagerLabelsUnder, CartoDB.VoyagerNoLabels, CartoDB.VoyagerOnlyLabels, CyclOSM, Esri.AntarcticBasemap, Esri.AntarcticImagery, Esri.ArcticImagery, Esri.ArcticOceanBase, Esri.ArcticOceanReference, Esri.NatGeoWorldMap, Esri.OceanBasemap, Esri.WorldGrayCanvas, Esri.WorldPhysical, Esri.WorldShadedRelief, Esri.WorldTerrain, FreeMapSK, Gaode.Normal, Gaode.Satellite, HikeBike.HikeBike, HikeBike.HillShading, JusticeMap.americanIndian, JusticeMap.asian, JusticeMap.black, JusticeMap.hispanic, JusticeMap.income, JusticeMap.multi, JusticeMap.nonWhite, JusticeMap.plurality, JusticeMap.white, MtbMap, NASAGIBS.ASTER_GDEM_Greyscale_Shaded_Relief, NASAGIBS.BlueMarble, NASAGIBS.BlueMarble3031, NASAGIBS.BlueMarble3413, NASAGIBS.BlueMarbleBathymetry3031, NASAGIBS.BlueMarbleBathymetry3413, NASAGIBS.MEaSUREsIceVelocity3031, NASAGIBS.MEaSUREsIceVelocity3413, NASAGIBS.ModisAquaBands721CR, NASAGIBS.ModisAquaTrueColorCR, NASAGIBS.ModisTerraAOD, NASAGIBS.ModisTerraBands367CR, NASAGIBS.ModisTerraBands721CR, NASAGIBS.ModisTerraChlorophyll, NASAGIBS.ModisTerraLSTDay, NASAGIBS.ModisTerraSnowCover, NASAGIBS.ModisTerraTrueColorCR, NASAGIBS.ViirsEarthAtNight2012, NASAGIBS.ViirsTrueColorCR, OPNVKarte, OneMapSG.Default, OneMapSG.Grey, OneMapSG.LandLot, OneMapSG.Night, OneMapSG.Original, OpenAIP, OpenFireMap, OpenRailwayMap, OpenSeaMap, OpenSnowMap.pistes, OpenStreetMap.BZH, OpenStreetMap.BlackAndWhite, OpenStreetMap.CH, OpenStreetMap.DE, OpenStreetMap.HOT, OpenStreetMap.Mapnik, OpenTopoMap, SafeCast, Stadia.AlidadeSatellite, Stadia.AlidadeSmooth, Stadia.AlidadeSmoothDark, Stadia.OSMBright, Stadia.Outdoors, Stadia.StamenTerrain, Stadia.StamenTerrainBackground, Stadia.StamenTerrainLabels, Stadia.StamenTerrainLines, Stadia.StamenToner, Stadia.StamenTonerBackground, Stadia.StamenTonerLabels, Stadia.StamenTonerLines, Stadia.StamenTonerLite, Stadia.StamenWatercolor, Strava.All, Strava.Ride, Strava.Run, Strava.Water, Strava.Winter, SwissFederalGeoportal.JourneyThroughTime, SwissFederalGeoportal.NationalMapColor, SwissFederalGeoportal.NationalMapGrey, SwissFederalGeoportal.SWISSIMAGE, TopPlusOpen.Color, TopPlusOpen.Grey, USGS.USImagery, USGS.USImageryTopo, USGS.USTopo, WaymarkedTrails.cycling, WaymarkedTrails.hiking, WaymarkedTrails.mtb, WaymarkedTrails.riding, WaymarkedTrails.skating, WaymarkedTrails.slopes, nlmaps.grijs, nlmaps.luchtfoto, nlmaps.pastel, nlmaps.standaard, nlmaps.water, Planet_2016q1, Planet_2016q2, Planet_2016q3, Planet_2016q4, Planet_2017q1, Planet_2017q2, Planet_2017q3, Planet_2017q4, Planet_2018q1, Planet_2018q2, Planet_2018q3, Planet_2018q4, Planet_2019q1, Planet_2019q2, Planet_2019q3, Planet_2019q4, Planet_2020q1, Planet_2020q2, Planet_2020q3, Planet_2020q4, Planet_2021q1, Planet_2021q2, Planet_2021q3, Planet_2021q4, Planet_2022q1, Planet_2022q2, Planet_2022q3, Planet_2022q4, Planet_2023q1, Planet_2023q2, Planet_2023q3, Planet_2023q4, Planet_2024q1, Planet_2024q2, Planet_2024q3, Planet_2024q4, Planet_2025q1, Planet_2025q2, Planet_2016_01, Planet_2016_02, Planet_2016_03, Planet_2016_04, Planet_2016_05, Planet_2016_06, Planet_2016_07, Planet_2016_08, Planet_2016_09, Planet_2016_10, Planet_2016_11, Planet_2016_12, Planet_2017_01, Planet_2017_02, Planet_2017_03, Planet_2017_04, Planet_2017_05, Planet_2017_06, Planet_2017_07, Planet_2017_08, Planet_2017_09, Planet_2017_10, Planet_2017_11, Planet_2017_12, Planet_2018_01, Planet_2018_02, Planet_2018_03, Planet_2018_04, Planet_2018_05, Planet_2018_06, Planet_2018_07, Planet_2018_08, Planet_2018_09, Planet_2018_10, Planet_2018_11, Planet_2018_12, Planet_2019_01, Planet_2019_02, Planet_2019_03, Planet_2019_04, Planet_2019_05, Planet_2019_06, Planet_2019_07, Planet_2019_08, Planet_2019_09, Planet_2019_10, Planet_2019_11, Planet_2019_12, Planet_2020_01, Planet_2020_02, Planet_2020_03, Planet_2020_04, Planet_2020_05, Planet_2020_06, Planet_2020_07, Planet_2020_08, Planet_2020_09, Planet_2020_10, Planet_2020_11, Planet_2020_12, Planet_2021_01, Planet_2021_02, Planet_2021_03, Planet_2021_04, Planet_2021_05, Planet_2021_06, Planet_2021_07, Planet_2021_08, Planet_2021_09, Planet_2021_10, Planet_2021_11, Planet_2021_12, Planet_2022_01, Planet_2022_02, Planet_2022_03, Planet_2022_04, Planet_2022_05, Planet_2022_06, Planet_2022_07, Planet_2022_08, Planet_2022_09, Planet_2022_10, Planet_2022_11, Planet_2022_12, Planet_2023_01, Planet_2023_02, Planet_2023_03, Planet_2023_04, Planet_2023_05, Planet_2023_06, Planet_2023_07, Planet_2023_08, Planet_2023_09, Planet_2023_10, Planet_2023_11, Planet_2023_12, Planet_2024_01, Planet_2024_02, Planet_2024_03, Planet_2024_04, Planet_2024_05, Planet_2024_06, Planet_2024_07, Planet_2024_08, Planet_2024_09, Planet_2024_10, Planet_2024_11, Planet_2024_12, Planet_2025_01, Planet_2025_02, Planet_2025_03, Planet_2025_04, Planet_2025_05, Planet_2025_06

Out[4]:

In [5]:

m.save("buildings.html")

m.save("buildings.html")

Local PMTiles¶

tippecanoe is required to convert vector data to pmtiles. Install it with conda install -c conda-forge tippecanoe.

Download building footprints of Derna, Libya.

In [6]:

url = "https://raw.githubusercontent.com/opengeos/open-data/main/datasets/libya/Derna_buildings.geojson"
leafmap.download_file(url, "buildings.geojson")

url = "https://raw.githubusercontent.com/opengeos/open-data/main/datasets/libya/Derna_buildings.geojson" leafmap.download_file(url, "buildings.geojson")

Downloading...
From: https://raw.githubusercontent.com/opengeos/open-data/main/datasets/libya/Derna_buildings.geojson
To: /home/runner/work/leafmap/leafmap/docs/notebooks/buildings.geojson

  0%|          | 0.00/2.77M [00:00<?, ?B/s]

9.96MB [00:00, 93.1MB/s]                   

12.8MB [00:00, 110MB/s] 

Out[6]:

'/home/runner/work/leafmap/leafmap/docs/notebooks/buildings.geojson'

Convert vector to PMTiles.

In [7]:

pmtiles = "buildings.pmtiles"
leafmap.geojson_to_pmtiles(
    "buildings.geojson", pmtiles, layer_name="buildings", overwrite=True, quiet=True
)

pmtiles = "buildings.pmtiles" leafmap.geojson_to_pmtiles( "buildings.geojson", pmtiles, layer_name="buildings", overwrite=True, quiet=True )

Error: tippecanoe is not installed.
You can install it using conda with the following command:
conda install -c conda-forge tippecanoe

Start a HTTP Sever

In [8]:

leafmap.start_server(port=8000)

leafmap.start_server(port=8000)

In [9]:

url = f"http://127.0.0.1:8000/{pmtiles}"
# leafmap.pmtiles_metadata(url)

url = f"http://127.0.0.1:8000/{pmtiles}" # leafmap.pmtiles_metadata(url)

Display the PMTiles on the map.

In [10]:

m = leafmap.Map()

style = {
    "version": 8,
    "sources": {
        "example_source": {
            "type": "vector",
            "url": "pmtiles://" + url,
            "attribution": "PMTiles",
        }
    },
    "layers": [
        {
            "id": "buildings",
            "source": "example_source",
            "source-layer": "buildings",
            "type": "fill",
            "paint": {"fill-color": "#3388ff", "fill-opacity": 0.5},
        },
    ],
}

# style = leafmap.pmtiles_style(url)  # Use default style

m.add_pmtiles(url, name="Buildings", show=True, zoom_to_layer=True, style=style)
m

m = leafmap.Map() style = { "version": 8, "sources": { "example_source": { "type": "vector", "url": "pmtiles://" + url, "attribution": "PMTiles", } }, "layers": [ { "id": "buildings", "source": "example_source", "source-layer": "buildings", "type": "fill", "paint": {"fill-color": "#3388ff", "fill-opacity": 0.5}, }, ], } # style = leafmap.pmtiles_style(url) # Use default style m.add_pmtiles(url, name="Buildings", show=True, zoom_to_layer=True, style=style) m

HTTPConnectionPool(host='127.0.0.1', port=8000): Max retries exceeded with url: /buildings.pmtiles (Caused by NewConnectionError('<urllib3.connection.HTTPConnection object at 0x7fe17c5acda0>: Failed to establish a new connection: [Errno 111] Connection refused'))

Out[10]: