73 transect

In [1]:

import ee
import geemap
from bqplot import pyplot as plt

import ee import geemap from bqplot import pyplot as plt

In [2]:

Map = geemap.Map()
Map.add_basemap("TERRAIN")
Map

Map = geemap.Map() Map.add_basemap("TERRAIN") Map

Out[2]:

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

In [3]:

image = ee.Image('USGS/SRTMGL1_003')
vis_params = {
    'min': 0,
    'max': 4000,
    'palette': ['006633', 'E5FFCC', '662A00', 'D8D8D8', 'F5F5F5'],
}
Map.addLayer(image, vis_params, 'SRTM DEM', True, 0.5)

image = ee.Image('USGS/SRTMGL1_003') vis_params = { 'min': 0, 'max': 4000, 'palette': ['006633', 'E5FFCC', '662A00', 'D8D8D8', 'F5F5F5'], } Map.addLayer(image, vis_params, 'SRTM DEM', True, 0.5)

In [4]:

# Use the drawing tool to draw any line on the map.
line = Map.user_roi
if line is None:
    line = ee.Geometry.LineString(
        [[-120.223279, 36.314849], [-118.926969, 36.712192], [-117.202217, 36.756215]]
    )
    Map.addLayer(line, {}, "ROI")
Map.centerObject(line)

# Use the drawing tool to draw any line on the map. line = Map.user_roi if line is None: line = ee.Geometry.LineString( [[-120.223279, 36.314849], [-118.926969, 36.712192], [-117.202217, 36.756215]] ) Map.addLayer(line, {}, "ROI") Map.centerObject(line)

---------------------------------------------------------------------------
AttributeError                            Traceback (most recent call last)
Input In [4], in <cell line: 2>()
      1 # Use the drawing tool to draw any line on the map.
----> 2 line = Map.user_roi
      3 if line is None:
      4     line = ee.Geometry.LineString(
      5         [[-120.223279, 36.314849], [-118.926969, 36.712192], [-117.202217, 36.756215]]
      6     )

AttributeError: 'Map' object has no attribute 'user_roi'

In [5]:

line.getInfo()

line.getInfo()

---------------------------------------------------------------------------
NameError                                 Traceback (most recent call last)
Input In [5], in <cell line: 1>()
----> 1 line.getInfo()

NameError: name 'line' is not defined

In [6]:

reducer = 'mean'  # Any ee.Reducer, e.g., mean, median, min, max, stdDev
transect = geemap.extract_transect(
    image, line, n_segments=100, reducer=reducer, to_pandas=True
)

reducer = 'mean' # Any ee.Reducer, e.g., mean, median, min, max, stdDev transect = geemap.extract_transect( image, line, n_segments=100, reducer=reducer, to_pandas=True )

---------------------------------------------------------------------------
NameError                                 Traceback (most recent call last)
Input In [6], in <cell line: 2>()
      1 reducer = 'mean'  # Any ee.Reducer, e.g., mean, median, min, max, stdDev
      2 transect = geemap.extract_transect(
----> 3     image, line, n_segments=100, reducer=reducer, to_pandas=True
      4 )

NameError: name 'line' is not defined

In [7]:

transect

transect

---------------------------------------------------------------------------
NameError                                 Traceback (most recent call last)
Input In [7], in <cell line: 1>()
----> 1 transect

NameError: name 'transect' is not defined

In [8]:

fig = plt.figure()
plt.plot(transect['distance'], transect[reducer])
plt.xlabel('Distance')
plt.ylabel("Elevation")
plt.show()

fig = plt.figure() plt.plot(transect['distance'], transect[reducer]) plt.xlabel('Distance') plt.ylabel("Elevation") plt.show()

---------------------------------------------------------------------------
NameError                                 Traceback (most recent call last)
Input In [8], in <cell line: 2>()
      1 fig = plt.figure()
----> 2 plt.plot(transect['distance'], transect[reducer])
      3 plt.xlabel('Distance')
      4 plt.ylabel("Elevation")

NameError: name 'transect' is not defined

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Last update: 2022-03-14