11 linked maps

Creating linked maps for visualizing multiple maps simultaneously

Uncomment the following line to install leafmap if needed.

In [1]:

# !pip install leafmap

# !pip install leafmap

This notebook example requires the ipyleaflet plotting backend. Folium is not supported.

In [2]:

import leafmap.leafmap as leafmap

import leafmap.leafmap as leafmap

Print out the list of available basemaps.

In [3]:

print(leafmap.basemaps.keys())

print(leafmap.basemaps.keys())

dict_keys(['OpenStreetMap', 'Google Maps', 'Google Satellite', 'Google Terrain', 'Google 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', '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.WorldImagery', 'Esri.WorldPhysical', 'Esri.WorldShadedRelief', 'Esri.WorldStreetMap', 'Esri.WorldTerrain', 'Esri.WorldTopoMap', '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'])

Specify the number of rows and columns to create a linked map. The layers parameter accepts a list of two XYZ tile layers, which can be chosen from the basemap names, or any custom XYZ tile layer.

In [4]:

layers = ["ROADMAP", "HYBRID"]
leafmap.linked_maps(rows=1, cols=2, height="400px", layers=layers)

layers = ["ROADMAP", "HYBRID"] leafmap.linked_maps(rows=1, cols=2, height="400px", layers=layers)

In [5]:

layers = ["Esri.WorldTopoMap", "OpenTopoMap"]
leafmap.linked_maps(rows=1, cols=2, height="400px", layers=layers)

layers = ["Esri.WorldTopoMap", "OpenTopoMap"] leafmap.linked_maps(rows=1, cols=2, height="400px", layers=layers)

Create a 2 * 2 linked map to visualize land cover change. Specify the center and zoom parameters to change the default map center and zoom level.

In [6]:

layers = [str(f"NLCD {year} CONUS Land Cover") for year in [2001, 2006, 2011, 2016]]
labels = [str(f"NLCD {year}") for year in [2001, 2006, 2011, 2016]]
leafmap.linked_maps(
    rows=2,
    cols=2,
    height="300px",
    layers=layers,
    labels=labels,
    center=[36.1, -115.2],
    zoom=9,
)

layers = [str(f"NLCD {year} CONUS Land Cover") for year in [2001, 2006, 2011, 2016]] labels = [str(f"NLCD {year}") for year in [2001, 2006, 2011, 2016]] leafmap.linked_maps( rows=2, cols=2, height="300px", layers=layers, labels=labels, center=[36.1, -115.2], zoom=9, )