ipyleaflet module

Extends ipyleaflet objects to work with Earth Engine generated data.

Map

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Map

 Map (*args, **kwargs)

An interactive map class for Jupyter clients.

Attributes: layers_control: a boolean indicating whether to display a layers control.

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TileLayerEE

 TileLayerEE (ee_object:ee.image.Image, *args, **kwargs)

Class for a tile layer generated by Earth Engine.

Attributes: ee_object: An Earth Engine object.

	Type	Details
ee_object	Image	An Earth Engine Image object
args
kwargs

Display the default interactive map.

map = Map()
map

Display an Earth Engine raster layer.

ee.Initialize()

dem = ee.Image('USGS/SRTMGL1_003')
sample_image = dem.updateMask(dem.gt(0))

map2 = Map()
map2.addLayer(sample_image, {'min':0, 'max':4000}, name="My layer", shown=True)
map2

Map Inspector

The following defines a StructureTree class, which builds a tree structure corresponding to data structure provided as input. The tree branches are lazily populated as the tree is expanded, so that large data structures can be efficiently rendered.

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StructureTree

 StructureTree (data, **kwargs)

The base Tree widget

Here is a StructureTree object that demonstrates how lists, dictionaries, and nested objects are rendered:

st = StructureTree({'none': None,
               'number': 1,
               'string': 'hello!',
               'list': [1, 'item1'], 
               'dictionary': {'a key': 'a value'},
               'nesting': [
                   ['nested', 'list'],
                   {'a nested': 'dictionary'}
               ]})
st

The following defines an Inspector class, which is used to display information obtained from querying a Map object.

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Inspector

 Inspector (map_object=None, *args, **kwargs)

Class representing an inspector tool that responds to map events.

	Type	Default	Details
map_object	NoneType	None	An Earth Engine Image object
args
kwargs

# Testing it out...
map1 = Map()
map1.addLayer(ee.Image.pixelLonLat(), {'min':-90, 'max':90, 'opacity':0.5}, 'pixelLatLon')
# map1.addLayer(ee.Image("CGIAR/SRTM90_V4"), {'opacity':0.5}, 'SRTM')
inspector1 = Inspector(map_object = map1)

zoom_slider = widgets.IntSlider(description='Zoom level:', min=0, max=15, value=7)
widget_control1 = ipyleaflet.WidgetControl(widget=inspector1,
                                           position='bottomright',
                                           layout=widgets.Layout(overflow='scroll'))
map1.add_control(widget_control1)
map1

Examples

Inspector object only

inspector1 = Inspector()
inspector1

Inspector with a Map

ee.Initialize()

map = Map()
inspector2 = Inspector(map_object=map)
display(
    widgets.HBox([
        map,
        inspector2
    ],
    layout=widgets.Layout(border='1px solid black')))

map.addLayer(ee.Image.pixelLonLat(), {'min':-90, 'max':90, 'opacity':0.5}, 'LonLat')
map.addLayer(
    ee.Image('LANDSAT/LC09/C02/T1_L2/LC09_187058_20220105'),
    {'min':0, 'max':90, 'opacity':0.5},
    'Landsat')