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| import os | |
| import streamlit as st | |
| import pandas as pd | |
| import leafmap.foliumap as leafmap | |
| st.set_page_config(layout="wide") | |
| url = 'https://open.gishub.org/maxar-open-data' | |
| repo = 'https://github.com/opengeos/maxar-open-data/blob/master/datasets' | |
| os.environ['GOOGLE_MAPS_API_KEY'] = 'API-KEY' | |
| m = leafmap.Map() | |
| m.add_basemap('SATELLITE') | |
| m.add_basemap('ROADMAP') | |
| def get_datasets(): | |
| datasets = f'{url}/datasets.csv' | |
| df = pd.read_csv(datasets) | |
| return df | |
| def get_catalogs(name): | |
| dataset = f'{url}/datasets/{name}.tsv' | |
| dataset_df = pd.read_csv(dataset, sep='\t') | |
| catalog_ids = dataset_df['catalog_id'].unique().tolist() | |
| return catalog_ids | |
| st.title('Visualizing Maxar Open Data') | |
| col1, col2 = st.columns([1.2, 3.8]) | |
| with col1: | |
| default = 'Morocco-Earthquake-Sept-2023' | |
| datasets = get_datasets()['dataset'].tolist() | |
| dataset = st.selectbox('Select a dataset', datasets, index=datasets.index(default)) | |
| catalog = st.selectbox('Select a COG mosaic', get_catalogs(dataset), index=get_catalogs(dataset).index('10300500E4F91900')) | |
| geojson = f'{url}/datasets/{dataset}.geojson' | |
| mosaic = f'{url}/datasets/{dataset}/{catalog}.json' | |
| tsv = f'{repo}/{dataset}/{catalog}.tsv' | |
| st.markdown(f'View metadata: [{catalog}.tsv]({tsv})') | |
| with st.expander("Python code snippets"): | |
| markdown = f""" | |
| import leafmap.foliumap as leafmap | |
| m = leafmap.Map() | |
| geojson = '{geojson}' | |
| mosaic = '{mosaic}' | |
| m.add_geojson(geojson, layer_name='{dataset}', info_mode='on_click') | |
| m.add_stac_layer(mosaic, name='{catalog}') | |
| m | |
| """ | |
| st.code(markdown) | |
| style = { | |
| 'weight': 1, | |
| 'fillOpacity': 0 | |
| } | |
| m.add_geojson(geojson, layer_name=dataset, style=style, info_mode='on_click') | |
| m.add_stac_layer(mosaic, name=catalog) | |
| st.info('About') | |
| markdown = f""" | |
| - [Web App Source Code](https://github.com/opengeos/maxar-open-data/blob/master/streamlit_app.py) | |
| - [GitHub Repo](https://github.com/opengeos/maxar-open-data) | |
| - [Notebook Example](https://github.com/opengeos/maxar-open-data/blob/master/examples/maxar_open_data.ipynb) | |
| - [Maxar Open Data Program](https://www.maxar.com/open-data) | |
| - [Maxar Open Data on AWS](https://registry.opendata.aws/maxar-open-data/) | |
| - [Maxar Open Data on STAC Index](https://stacindex.org/catalogs/maxar-open-data-catalog-ard-format#/) | |
| - [Maxar Open Data on STAC Browser](https://radiantearth.github.io/stac-browser/#/external/maxar-opendata.s3.amazonaws.com/events/catalog.json?.language=en) | |
| - Contact: [Qiusheng Wu](https://github.com/giswqs) | |
| """ | |
| st.markdown(markdown) | |
| with col2: | |
| m.to_streamlit(height=780) | |