73 custom stac

Searching Geospatial Data Interactively with Custom STAC API Endpoints

Uncomment the following line to install leafmap if needed.

In [1]:

# %pip install -U leafmap

# %pip install -U leafmap

In [2]:

import os
from leafmap import leafmap

import os from leafmap import leafmap

Provide custom STAC API endpoints as a dictionary in the format of {"name": "url"}. The name will show up in the dropdown menu, while the url is the STAC API endpoint that will be used to search for items.

In [3]:

catalogs = {
    "Element84 Earth Search": "https://earth-search.aws.element84.com/v1",
    "Microsoft Planetary Computer": "https://planetarycomputer.microsoft.com/api/stac/v1",
}

catalogs = { "Element84 Earth Search": "https://earth-search.aws.element84.com/v1", "Microsoft Planetary Computer": "https://planetarycomputer.microsoft.com/api/stac/v1", }

Create an interactive map and click on the catalog button as shown below to open the catalog panel. Be sure to specify the catalog_source parameter during the map creation.

In [4]:

m = leafmap.Map(center=[40, -100], zoom=4, catalog_source=catalogs)
m

m = leafmap.Map(center=[40, -100], zoom=4, catalog_source=catalogs) m

Alternatively, you can also use the Map.set_catalog_source method to specify the custom API endpoints.

In [5]:

m = leafmap.Map(center=[40, -100], zoom=4)
m.set_catalog_source(catalogs)
m

m = leafmap.Map(center=[40, -100], zoom=4) m.set_catalog_source(catalogs) m

Another way to specify STAC API endpoints is to set the environment variable STAC_CATALOGS to a dictionary in the format of {"name": "url"}.

In [6]:

os.environ['STAC_CATALOGS'] = str(catalogs)

os.environ['STAC_CATALOGS'] = str(catalogs)

Then, you can create an interactive map as usual and click on the catalog button to open the catalog panel.

In [7]:

m = leafmap.Map()
m

m = leafmap.Map() m

The STAC GUI can also be open directly by calling the stac_gui() function.

In [8]:

from leafmap.toolbar import stac_gui

from leafmap.toolbar import stac_gui

In [9]:

stac_gui(m)

stac_gui(m)

Once the catalog panel is open, you can search for items from the custom STAC API endpoints. Simply draw a bounding box on the map or zoom to a location of interest. Click on the Collections button to retrieve the collections from the custom STAC API endpoints. Next, select a collection from the dropdown menu. Then, click on the Items button to retrieve the items from the selected collection. Finally, click on the Display button to add the selected item to the map.

In [10]:

# m.stac_gdf  # The GeoDataFrame of the STAC search results

# m.stac_gdf # The GeoDataFrame of the STAC search results

In [11]:

# m.stac_dict  # The STAC search results as a dictionary

# m.stac_dict # The STAC search results as a dictionary

In [12]:

# m.stac_item  # The selected STAC item of the search result

# m.stac_item # The selected STAC item of the search result

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Last update: 2023-09-22
Created: 2023-09-22