07 data visualization

Changing layer opacity¶

Uncomment and execute the following code block to install geemap if needed.

In [1]:

# !pip install geemap

# !pip install geemap

In [2]:

import ee
import geemap

import ee import geemap

In [3]:

Map = geemap.Map(center=(40, -100), zoom=4)

dem = ee.Image('USGS/SRTMGL1_003')
states = ee.FeatureCollection("TIGER/2018/States")

vis_params = {
    'min': 0,
    'max': 4000,
    'palette': ['006633', 'E5FFCC', '662A00', 'D8D8D8', 'F5F5F5'],
}

Map.addLayer(dem, vis_params, 'SRTM DEM', True, 1)
Map.addLayer(states, {}, "US States", True)

Map

Map = geemap.Map(center=(40, -100), zoom=4) dem = ee.Image('USGS/SRTMGL1_003') states = ee.FeatureCollection("TIGER/2018/States") vis_params = { 'min': 0, 'max': 4000, 'palette': ['006633', 'E5FFCC', '662A00', 'D8D8D8', 'F5F5F5'], } Map.addLayer(dem, vis_params, 'SRTM DEM', True, 1) Map.addLayer(states, {}, "US States", True) Map

Out[3]:

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Visualizing raster data¶

In [4]:

Map = geemap.Map(center=(40, -100), zoom=4)

# Add Earth Engine dataset
dem = ee.Image('USGS/SRTMGL1_003')
landsat7 = ee.Image('LE7_TOA_5YEAR/1999_2003').select(
    ['B1', 'B2', 'B3', 'B4', 'B5', 'B7']
)

vis_params = {
    'min': 0,
    'max': 4000,
    'palette': ['006633', 'E5FFCC', '662A00', 'D8D8D8', 'F5F5F5'],
}

Map.addLayer(dem, vis_params, 'SRTM DEM', True, 1)
Map.addLayer(
    landsat7,
    {'bands': ['B4', 'B3', 'B2'], 'min': 20, 'max': 200, 'gamma': 2},
    'Landsat 7',
)
Map

Map = geemap.Map(center=(40, -100), zoom=4) # Add Earth Engine dataset dem = ee.Image('USGS/SRTMGL1_003') landsat7 = ee.Image('LE7_TOA_5YEAR/1999_2003').select( ['B1', 'B2', 'B3', 'B4', 'B5', 'B7'] ) vis_params = { 'min': 0, 'max': 4000, 'palette': ['006633', 'E5FFCC', '662A00', 'D8D8D8', 'F5F5F5'], } Map.addLayer(dem, vis_params, 'SRTM DEM', True, 1) Map.addLayer( landsat7, {'bands': ['B4', 'B3', 'B2'], 'min': 20, 'max': 200, 'gamma': 2}, 'Landsat 7', ) Map

Out[4]:

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Visualizing vector data¶

In [5]:

Map = geemap.Map()

states = ee.FeatureCollection("TIGER/2018/States")
Map.addLayer(states, {}, "US States")
Map

Map = geemap.Map() states = ee.FeatureCollection("TIGER/2018/States") Map.addLayer(states, {}, "US States") Map

Out[5]:

Make this Notebook Trusted to load map: File -> Trust Notebook

In [6]:

vis_params = {
    'color': '000000',
    'colorOpacity': 1,
    'pointSize': 3,
    'pointShape': 'circle',
    'width': 2,
    'lineType': 'solid',
    'fillColorOpacity': 0.66,
}

palette = ['006633', 'E5FFCC', '662A00', 'D8D8D8', 'F5F5F5']

Map.add_styled_vector(
    states, column="NAME", palette=palette, layer_name="Styled vector", **vis_params
)

vis_params = { 'color': '000000', 'colorOpacity': 1, 'pointSize': 3, 'pointShape': 'circle', 'width': 2, 'lineType': 'solid', 'fillColorOpacity': 0.66, } palette = ['006633', 'E5FFCC', '662A00', 'D8D8D8', 'F5F5F5'] Map.add_styled_vector( states, column="NAME", palette=palette, layer_name="Styled vector", **vis_params )

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Last update: 2022-03-25