def show_datasets(
dss,
mode='leaflet',
dst=None,
layer_name='Datasets',
style={},
simplify=True,
tolerance=0.001, # ~100m at equator
**kw):
""" Display dataset footprints on a Leaflet map.
:param mode: leaflet|geojson, geojson only works in JupyterLab, leave it as default
:param dst: leaflet map to "show" datasets on, default -- create new one
:param layer_name: name to give to the layer
:param style: GeoJSON style dictionary
- weight
- color/fillColor
- opacity/fillOpacity
- full list of options here: https://leafletjs.com/reference-1.5.0.html#path-option
:param simplify: simplify geometries before adding them to map
:param tolerance: tolerance in degrees for geometry simplification, default 0.001 ~ 111 meters at equator
**kw: Arguments to pass to leaflet.Map(..) constructor
"""
if mode not in ('leaflet', 'geojson'):
raise ValueError('Invalid value for mode, expected: leaflet|geojson')
polygons, bbox = dss_to_geojson(dss,
bbox=True,
simplify=simplify,
tolerance=tolerance)
if mode == 'geojson':
from IPython.display import GeoJSON
return GeoJSON(polygons)
if mode == 'leaflet':
from ipyleaflet import Map, GeoJSON, FullScreenControl, LayersControl
if dst is None:
center = kw.pop('center', None)
zoom = kw.pop('zoom', None)
if center is None:
center = (bbox.bottom + bbox.top) * 0.5, (bbox.right +
bbox.left) * 0.5
if zoom is None:
zoom = zoom_from_bbox(bbox)
height = kw.pop('height', '600px')
width = kw.pop('width', None)
m = Map(center=center, zoom=zoom, **kw)
m.layout.height = height
m.layout.width = width
m.add_control(FullScreenControl())
m.add_control(LayersControl())
else:
m = dst
gg = GeoJSON(data={
'type': 'FeatureCollection',
'features': polygons
},
style=style,
hover_style={'color': 'tomato'},
name=layer_name)
m.add_layer(gg)
if dst is None:
return m
else:
return gg
GeoJSON(
{
"type": "FeatureCollection",
"features": [
{
"type": "Feature",
"properties": {
"name": "Van Dorn Street",
"marker-color": "#0000ff",
"marker-symbol": "rail-metro",
"line": "blue"
},
"geometry": {
"type": "Point",
"coordinates": [
-77.12911152370515,
38.79930767201779
]
}
},
{
"type": "Feature",
"properties": {
"name": "Glenmont",
"marker-color": "#ff0000",
"marker-symbol": "rail-metro",
"line": "red"
},
"geometry": {
"type": "Point",
"coordinates": [
-77.05355735935977,
39.06178376553033
]
}
}]
},
)
GeoJSON(
{
"type": "FeatureCollection",
"features": [
{
"type": "Feature",
"properties": {
"name": "Van Dorn Street",
"marker-color": "#0000ff",
"marker-symbol": "rail-metro",
"line": "blue"
},
"geometry": {
"type": "Point",
"coordinates": [
-77.12911152370515,
38.79930767201779
]
}
},
{
"type": "Feature",
"properties": {
"name": "Franconia-Springfield",
"marker-color": "#0000ff",
"marker-symbol": "rail-metro",
"line": "blue"
},
"geometry": {
"type": "Point",
"coordinates": [
-77.16797018042666,
38.766521892689916
]
}
},
{
"type": "Feature",
"properties": {
"name": "Federal Center SW",
"marker-color": "#0000ff",
"marker-symbol": "rail-metro",
"line": "blue"
},
"geometry": {
"type": "Point",
"coordinates": [
-77.01586821694521,
38.885072355144786
]
}
},
{
"type": "Feature",
"properties": {
"name": "Judiciary Sq",
"marker-color": "#ff0000",
"marker-symbol": "rail-metro",
"line": "red"
},
"geometry": {
"type": "Point",
"coordinates": [
-77.01663895662587,
38.896090317663166
]
}
},
{
"type": "Feature",
"properties": {
"name": "Capitol South",
"marker-color": "#0000ff",
"marker-symbol": "rail-metro",
"line": "blue"
},
"geometry": {
"type": "Point",
"coordinates": [
-77.00513941992737,
38.885062500925
]
}
},
{
"type": "Feature",
"properties": {
"name": "Metro Center",
"marker-color": "#ff0000",
"marker-symbol": "rail-metro",
"line": "red"
},
"geometry": {
"type": "Point",
"coordinates": [
-77.02807799718069,
38.89831447321318
]
}
},
{
"type": "Feature",
"properties": {
"name": "Gallery Pl-Chinatown",
"marker-color": "#ff0000",
"marker-symbol": "rail-metro",
"line": "red"
},
"geometry": {
"type": "Point",
"coordinates": [
-77.02191539042379,
38.89831680979661
]
}
},
{
"type": "Feature",
"properties": {
"name": "Mt Vernon Sq - 7th St Convention Center",
"marker-color": "#008000",
"marker-symbol": "rail-metro",
"line": "green"
},
"geometry": {
"type": "Point",
"coordinates": [
-77.02191438038649,
38.906436814951725
]
}
},
{
"type": "Feature",
"properties": {
"name": "U St/African-Amer Civil War Memorial/Cardozo",
"marker-color": "#008000",
"marker-symbol": "rail-metro",
"line": "green"
},
"geometry": {
"type": "Point",
"coordinates": [
-77.0274958929489,
38.91700239924426
]
}
},
{
"type": "Feature",
"properties": {
"name": "Union Station",
"marker-color": "#ff0000",
"marker-symbol": "rail-metro",
"line": "red"
},
"geometry": {
"type": "Point",
"coordinates": [
-77.00741429219985,
38.89776603923524
]
}
},
{
"type": "Feature",
"properties": {
"name": "Congress Heights",
"marker-color": "#008000",
"marker-symbol": "rail-metro",
"line": "green"
},
"geometry": {
"type": "Point",
"coordinates": [
-76.98851193260715,
38.84565770287511
]
}
},
{
"type": "Feature",
"properties": {
"name": "Naylor Road",
"marker-color": "#008000",
"marker-symbol": "rail-metro",
"line": "green"
},
"geometry": {
"type": "Point",
"coordinates": [
-76.95626270945314,
38.8513013835867
]
}
},
{
"type": "Feature",
"properties": {
"name": "Suitland",
"marker-color": "#008000",
"marker-symbol": "rail-metro",
"line": "green"
},
"geometry": {
"type": "Point",
"coordinates": [
-76.93187015895299,
38.84396455441679
]
}
},
{
"type": "Feature",
"properties": {
"name": "Branch Ave",
"marker-color": "#008000",
"marker-symbol": "rail-metro",
"line": "green"
},
"geometry": {
"type": "Point",
"coordinates": [
-76.91146421773884,
38.82644634832078
]
}
},
{
"type": "Feature",
"properties": {
"name": "Braddock Road",
"marker-color": "#0000ff",
"marker-symbol": "rail-metro",
"line": "blue"
},
"geometry": {
"type": "Point",
"coordinates": [
-77.05366757406264,
38.81414366728901
]
}
},
{
"type": "Feature",
"properties": {
"name": "King St - Old Town",
"marker-color": "#0000ff",
"marker-symbol": "rail-metro",
"line": "blue"
},
"geometry": {
"type": "Point",
"coordinates": [
-77.06081120854599,
38.806586117247996
]
}
},
{
"type": "Feature",
"properties": {
"name": "Eisenhower Ave",
"marker-color": "#ffff00",
"marker-symbol": "rail-metro",
"line": "yellow"
},
"geometry": {
"type": "Point",
"coordinates": [
-77.07087438931458,
38.800425449701244
]
}
},
{
"type": "Feature",
"properties": {
"name": "Huntington",
"marker-color": "#ffff00",
"marker-symbol": "rail-metro",
"line": "yellow"
},
"geometry": {
"type": "Point",
"coordinates": [
-77.075205789149,
38.793915852906736
]
}
},
{
"type": "Feature",
"properties": {
"name": "Anacostia",
"marker-color": "#008000",
"marker-symbol": "rail-metro",
"line": "green"
},
"geometry": {
"type": "Point",
"coordinates": [
-76.99537073875437,
38.862963116801595
]
}
},
{
"type": "Feature",
"properties": {
"name": "Eastern Market",
"marker-color": "#0000ff",
"marker-symbol": "rail-metro",
"line": "blue"
},
"geometry": {
"type": "Point",
"coordinates": [
-76.99600112671642,
38.884622260842676
]
}
},
{
"type": "Feature",
"properties": {
"name": "Potomac Ave",
"marker-color": "#0000ff",
"marker-symbol": "rail-metro",
"line": "blue"
},
"geometry": {
"type": "Point",
"coordinates": [
-76.98549531965503,
38.88126327363317
]
}
},
{
"type": "Feature",
"properties": {
"name": "Stadium Armory",
"marker-color": "#0000ff",
"marker-symbol": "rail-metro",
"line": "blue"
},
"geometry": {
"type": "Point",
"coordinates": [
-76.97708890144222,
38.88670908984284
]
}
},
{
"type": "Feature",
"properties": {
"name": "Rhode Island Ave",
"marker-color": "#ff0000",
"marker-symbol": "rail-metro",
"line": "red"
},
"geometry": {
"type": "Point",
"coordinates": [
-76.9959369166641,
38.921059689186336
]
}
},
{
"type": "Feature",
"properties": {
"name": "Minnesota Ave",
"marker-color": "#ffa500",
"marker-symbol": "rail-metro",
"line": "orange"
},
"geometry": {
"type": "Point",
"coordinates": [
-76.94674773364017,
38.89919122308901
]
}
},
{
"type": "Feature",
"properties": {
"name": "Van Ness-UDC",
"marker-color": "#ff0000",
"marker-symbol": "rail-metro",
"line": "red"
},
"geometry": {
"type": "Point",
"coordinates": [
-77.06298618051905,
38.94326528832245
]
}
},
{
"type": "Feature",
"properties": {
"name": "Cleveland Park",
"marker-color": "#ff0000",
"marker-symbol": "rail-metro",
"line": "red"
},
"geometry": {
"type": "Point",
"coordinates": [
-77.05804251913345,
38.93476289080542
]
}
},
{
"type": "Feature",
"properties": {
"name": "Columbia Heights",
"marker-color": "#008000",
"marker-symbol": "rail-metro",
"line": "green"
},
"geometry": {
"type": "Point",
"coordinates": [
-77.03255211771173,
38.9278379675233
]
}
},
{
"type": "Feature",
"properties": {
"name": "College Park-U of Md",
"marker-color": "#008000",
"marker-symbol": "rail-metro",
"line": "green"
},
"geometry": {
"type": "Point",
"coordinates": [
-76.92812498187074,
38.97863363396686
]
}
},
{
"type": "Feature",
"properties": {
"name": "Capitol Heights",
"marker-color": "#0000ff",
"marker-symbol": "rail-metro",
"line": "blue"
},
"geometry": {
"type": "Point",
"coordinates": [
-76.91180811452222,
38.889465856872334
]
}
},
{
"type": "Feature",
"properties": {
"name": "Morgan Boulevard",
"marker-color": "#0000ff",
"marker-symbol": "rail-metro",
"line": "blue"
},
"geometry": {
"type": "Point",
"coordinates": [
-76.86807476813904,
38.89383492821474
]
}
},
{
"type": "Feature",
"properties": {
"name": "Georgia Ave Petworth",
"marker-color": "#008000",
"marker-symbol": "rail-metro",
"line": "green"
},
"geometry": {
"type": "Point",
"coordinates": [
-77.02346090408138,
38.93743463014478
]
}
},
{
"type": "Feature",
"properties": {
"name": "Takoma",
"marker-color": "#ff0000",
"marker-symbol": "rail-metro",
"line": "red"
},
"geometry": {
"type": "Point",
"coordinates": [
-77.01817669871063,
38.97607853106706
]
}
},
{
"type": "Feature",
"properties": {
"name": "Glenmont",
"marker-color": "#ff0000",
"marker-symbol": "rail-metro",
"line": "red"
},
"geometry": {
"type": "Point",
"coordinates": [
-77.05355735935977,
39.06178376553033
]
}
},
{
"type": "Feature",
"properties": {
"name": "Wheaton",
"marker-color": "#ff0000",
"marker-symbol": "rail-metro",
"line": "red"
},
"geometry": {
"type": "Point",
"coordinates": [
-77.05010705352652,
39.03752714367442
]
}
},
{
"type": "Feature",
"properties": {
"name": "Forest Glen",
"marker-color": "#ff0000",
"marker-symbol": "rail-metro",
"line": "red"
},
"geometry": {
"type": "Point",
"coordinates": [
-77.04291655489614,
39.01495427527835
]
}
},
{
"type": "Feature",
"properties": {
"name": "Silver Spring",
"marker-color": "#ff0000",
"marker-symbol": "rail-metro",
"line": "red"
},
"geometry": {
"type": "Point",
"coordinates": [
-77.03101782681891,
38.99394937476845
]
}
},
{
"type": "Feature",
"properties": {
"name": "Brookland-CUA",
"marker-color": "#ff0000",
"marker-symbol": "rail-metro",
"line": "red"
},
"geometry": {
"type": "Point",
"coordinates": [
-76.99453428510049,
38.93321099135371
]
}
},
{
"type": "Feature",
"properties": {
"name": "Fort Totten",
"marker-color": "#ff0000",
"marker-symbol": "rail-metro",
"line": "red"
},
"geometry": {
"type": "Point",
"coordinates": [
-77.00220307680834,
38.95184676758986
]
}
},
{
"type": "Feature",
"properties": {
"name": "Prince George's Plaza",
"marker-color": "#008000",
"marker-symbol": "rail-metro",
"line": "green"
},
"geometry": {
"type": "Point",
"coordinates": [
-76.95588150788183,
38.96538544585582
]
}
},
{
"type": "Feature",
"properties": {
"name": "West Hyattsville",
"marker-color": "#008000",
"marker-symbol": "rail-metro",
"line": "green"
},
"geometry": {
"type": "Point",
"coordinates": [
-76.9695766751036,
38.955040170722334
]
}
},
{
"type": "Feature",
"properties": {
"name": "Benning Road",
"marker-color": "#0000ff",
"marker-symbol": "rail-metro",
"line": "blue"
},
"geometry": {
"type": "Point",
"coordinates": [
-76.93836486812415,
38.89097567600269
]
}
},
{
"type": "Feature",
"properties": {
"name": "Addison Road Seat Pleasant",
"marker-color": "#0000ff",
"marker-symbol": "rail-metro",
"line": "blue"
},
"geometry": {
"type": "Point",
"coordinates": [
-76.89410791000809,
38.886747816832674
]
}
},
{
"type": "Feature",
"properties": {
"name": "Deanwood",
"marker-color": "#ffa500",
"marker-symbol": "rail-metro",
"line": "orange"
},
"geometry": {
"type": "Point",
"coordinates": [
-76.93525678304978,
38.908178496517216
]
}
},
{
"type": "Feature",
"properties": {
"name": "New Carrollton",
"marker-color": "#ffa500",
"marker-symbol": "rail-metro",
"line": "orange"
},
"geometry": {
"type": "Point",
"coordinates": [
-76.87184128655672,
38.94778485583298
]
}
},
{
"type": "Feature",
"properties": {
"name": "Landover",
"marker-color": "#ffa500",
"marker-symbol": "rail-metro",
"line": "orange"
},
"geometry": {
"type": "Point",
"coordinates": [
-76.8911979676093,
38.93350623445376
]
}
},
{
"type": "Feature",
"properties": {
"name": "Cheverly",
"marker-color": "#ffa500",
"marker-symbol": "rail-metro",
"line": "orange"
},
"geometry": {
"type": "Point",
"coordinates": [
-76.91662804405367,
38.916631854659755
]
}
},
{
"type": "Feature",
"properties": {
"name": "Largo Town Center",
"marker-color": "#0000ff",
"marker-symbol": "rail-metro",
"line": "blue"
},
"geometry": {
"type": "Point",
"coordinates": [
-76.84203752022478,
38.905068807210085
]
}
},
{
"type": "Feature",
"properties": {
"name": "NoMa - Gallaudet U",
"marker-color": "#ff0000",
"marker-symbol": "rail-metro",
"line": "red"
},
"geometry": {
"type": "Point",
"coordinates": [
-77.00302044727623,
38.9070162121509
]
}
},
{
"type": "Feature",
"properties": {
"name": "Rosslyn",
"marker-color": "#0000ff",
"marker-symbol": "rail-metro",
"line": "blue"
},
"geometry": {
"type": "Point",
"coordinates": [
-77.07090868538504,
38.89597909628309
]
}
},
{
"type": "Feature",
"properties": {
"name": "Arlington|Cemetery",
"marker-color": "#0000ff",
"marker-symbol": "rail-metro",
"line": "blue"
},
"geometry": {
"type": "Point",
"coordinates": [
-77.06281012914037,
38.88468685852292
]
}
},
{
"type": "Feature",
"properties": {
"name": "Dupont Circle",
"marker-color": "#ff0000",
"marker-symbol": "rail-metro",
"line": "red"
},
"geometry": {
"type": "Point",
"coordinates": [
-77.04341435972708,
38.90959805757176
]
}
},
{
"type": "Feature",
"properties": {
"name": "Pentagon",
"marker-color": "#0000ff",
"marker-symbol": "rail-metro",
"line": "blue"
},
"geometry": {
"type": "Point",
"coordinates": [
-77.05371567343194,
38.869462701258364
]
}
},
{
"type": "Feature",
"properties": {
"name": "Crystal City",
"marker-color": "#0000ff",
"marker-symbol": "rail-metro",
"line": "blue"
},
"geometry": {
"type": "Point",
"coordinates": [
-77.05028980970857,
38.857904320437974
]
}
},
{
"type": "Feature",
"properties": {
"name": "Navy Yard - Ballpark",
"marker-color": "#008000",
"marker-symbol": "rail-metro",
"line": "green"
},
"geometry": {
"type": "Point",
"coordinates": [
-77.00508565136944,
38.87648108490679
]
}
},
{
"type": "Feature",
"properties": {
"name": "McPherson Sq",
"marker-color": "#0000ff",
"marker-symbol": "rail-metro",
"line": "blue"
},
"geometry": {
"type": "Point",
"coordinates": [
-77.03363417212512,
38.90133279688736
]
}
},
{
"type": "Feature",
"properties": {
"name": "Shaw-Howard Univ",
"marker-color": "#008000",
"marker-symbol": "rail-metro",
"line": "green"
},
"geometry": {
"type": "Point",
"coordinates": [
-77.02191170078564,
38.91347687116465
]
}
},
{
"type": "Feature",
"properties": {
"name": "Southern Ave",
"marker-color": "#008000",
"marker-symbol": "rail-metro",
"line": "green"
},
"geometry": {
"type": "Point",
"coordinates": [
-76.97505413887284,
38.841085780329024
]
}
},
{
"type": "Feature",
"properties": {
"name": "Greenbelt",
"marker-color": "#008000",
"marker-symbol": "rail-metro",
"line": "green"
},
"geometry": {
"type": "Point",
"coordinates": [
-76.91105757313493,
39.01114586051427
]
}
},
{
"type": "Feature",
"properties": {
"name": "Tenleytown-AU",
"marker-color": "#ff0000",
"marker-symbol": "rail-metro",
"line": "red"
},
"geometry": {
"type": "Point",
"coordinates": [
-77.07958732553253,
38.94885143514487
]
}
},
{
"type": "Feature",
"properties": {
"name": "West Falls Church VT/UVA",
"marker-color": "#ffa500",
"marker-symbol": "rail-metro",
"line": "orange"
},
"geometry": {
"type": "Point",
"coordinates": [
-77.18909482259758,
38.90078055103285
]
}
},
{
"type": "Feature",
"properties": {
"name": "Dunn Loring Merrifield",
"marker-color": "#ffa500",
"marker-symbol": "rail-metro",
"line": "orange"
},
"geometry": {
"type": "Point",
"coordinates": [
-77.22716067211516,
38.88362513595476
]
}
},
{
"type": "Feature",
"properties": {
"name": "Vienna Fairfax-GMU",
"marker-color": "#ffa500",
"marker-symbol": "rail-metro",
"line": "orange"
},
"geometry": {
"type": "Point",
"coordinates": [
-77.27262225692775,
38.877601123856635
]
}
},
{
"type": "Feature",
"properties": {
"name": "Friendship Heights",
"marker-color": "#ff0000",
"marker-symbol": "rail-metro",
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