12 split map

Creating a split-panel map with only one line of code

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', '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.DeLorme', '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.BlueMarble3031', 'NASAGIBS.BlueMarble3413', '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.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'])

Create a split-panel map by specifying the left_layer and right_layer, which can be chosen from the basemap names, or any custom XYZ tile layer.

In [4]:

leafmap.split_map(left_layer="ROADMAP", right_layer="HYBRID")

leafmap.split_map(left_layer="ROADMAP", right_layer="HYBRID")

Hide the zoom control from the map.

In [5]:

leafmap.split_map(
    left_layer="Esri.WorldTopoMap", right_layer="OpenTopoMap", zoom_control=False
)

leafmap.split_map( left_layer="Esri.WorldTopoMap", right_layer="OpenTopoMap", zoom_control=False )

Add labels to the map and change the default map center and zoom level.

In [6]:

leafmap.split_map(
    left_layer="NLCD 2001 CONUS Land Cover",
    right_layer="NLCD 2016 CONUS Land Cover",
    left_label="2001",
    right_label="2016",
    label_position="bottom",
    center=[36.1, -114.9],
    zoom=10,
)

leafmap.split_map( left_layer="NLCD 2001 CONUS Land Cover", right_layer="NLCD 2016 CONUS Land Cover", left_label="2001", right_label="2016", label_position="bottom", center=[36.1, -114.9], zoom=10, )