08 whitebox

Using WhiteboxTools with leafmap

Uncomment the following line to install leafmap if needed.

In [1]:

# !pip install leafmap

# !pip install leafmap

In [2]:

import os
import leafmap

import os import leafmap

Download a sample DEM dataset.

In [3]:

out_dir = os.path.expanduser('~/Downloads')
dem = os.path.join(out_dir, 'dem.tif')

if not os.path.exists(dem):
    dem_url = 'https://drive.google.com/file/d/1vRkAWQYsLWCi6vcTMk8vLxoXMFbdMFn8/view?usp=sharing'
    leafmap.download_from_gdrive(dem_url, 'dem.tif', out_dir, unzip=False)

out_dir = os.path.expanduser('~/Downloads') dem = os.path.join(out_dir, 'dem.tif') if not os.path.exists(dem): dem_url = 'https://drive.google.com/file/d/1vRkAWQYsLWCi6vcTMk8vLxoXMFbdMFn8/view?usp=sharing' leafmap.download_from_gdrive(dem_url, 'dem.tif', out_dir, unzip=False)

Create an interactive map.

In [4]:

Map = leafmap.Map()
Map

Map = leafmap.Map() Map

Out[4]:

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

Use the built-in toolbox to perform geospatial analysis. For example, you can perform depression filling using the sample DEM dataset downloaded in the above step.

Display the toolbox using the default mode.

In [5]:

leafmap.whiteboxgui()

leafmap.whiteboxgui()

Display the toolbox using the collapsible tree mode. Note that the tree mode does not support Google Colab.

In [6]:

leafmap.whiteboxgui(tree=True)

leafmap.whiteboxgui(tree=True)

Perform geospatial analysis using the whitebox package.

In [7]:

import os
import pkg_resources

import os import pkg_resources

In [8]:

wbt = leafmap.WhiteboxTools()
wbt.verbose = False

wbt = leafmap.WhiteboxTools() wbt.verbose = False

In [9]:

# identify the sample data directory of the package
data_dir = os.path.dirname(pkg_resources.resource_filename("whitebox", 'testdata/'))
wbt.set_working_dir(data_dir)

wbt.feature_preserving_smoothing("DEM.tif", "smoothed.tif", filter=9)
wbt.breach_depressions("smoothed.tif", "breached.tif")

# identify the sample data directory of the package data_dir = os.path.dirname(pkg_resources.resource_filename("whitebox", 'testdata/')) wbt.set_working_dir(data_dir) wbt.feature_preserving_smoothing("DEM.tif", "smoothed.tif", filter=9) wbt.breach_depressions("smoothed.tif", "breached.tif")

Out[9]:

0

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Last update: 2022-03-14