Initial commit

.gitignore

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+# Byte-compiled / optimized / DLL files
+__pycache__/
+*.py[cod]
+*$py.class
+private/
+.vscode/
+
+# C extensions
+*.so
+
+# Distribution / packaging
+.Python
+build/
+develop-eggs/
+dist/
+downloads/
+eggs/
+.eggs/
+lib/
+lib64/
+parts/
+sdist/
+var/
+wheels/
+pip-wheel-metadata/
+share/python-wheels/
+*.egg-info/
+.installed.cfg
+*.egg
+MANIFEST
+
+# PyInstaller
+#  Usually these files are written by a python script from a template
+#  before PyInstaller builds the exe, so as to inject date/other infos into it.
+*.manifest
+*.spec
+
+# Installer logs
+pip-log.txt
+pip-delete-this-directory.txt
+
+# Unit test / coverage reports
+htmlcov/
+.tox/
+.nox/
+.coverage
+.coverage.*
+.cache
+nosetests.xml
+coverage.xml
+*.cover
+*.py,cover
+.hypothesis/
+.pytest_cache/
+
+# Translations
+*.mo
+*.pot
+
+# Django stuff:
+*.log
+local_settings.py
+db.sqlite3
+db.sqlite3-journal
+
+# Flask stuff:
+instance/
+.webassets-cache
+
+# Scrapy stuff:
+.scrapy
+
+# Sphinx documentation
+docs/_build/
+
+# PyBuilder
+target/
+
+# Jupyter Notebook
+.ipynb_checkpoints
+
+# IPython
+profile_default/
+ipython_config.py
+
+# pyenv
+.python-version
+
+# pipenv
+#   According to pypa/pipenv#598, it is recommended to include Pipfile.lock in version control.
+#   However, in case of collaboration, if having platform-specific dependencies or dependencies
+#   having no cross-platform support, pipenv may install dependencies that don't work, or not
+#   install all needed dependencies.
+#Pipfile.lock
+
+# PEP 582; used by e.g. github.com/David-OConnor/pyflow
+__pypackages__/
+
+# Celery stuff
+celerybeat-schedule
+celerybeat.pid
+
+# SageMath parsed files
+*.sage.py
+
+# Environments
+.env
+.venv
+env/
+venv/
+ENV/
+env.bak/
+venv.bak/
+
+# Spyder project settings
+.spyderproject
+.spyproject
+
+# Rope project settings
+.ropeproject
+
+# mkdocs documentation
+/site
+
+# mypy
+.mypy_cache/
+.dmypy.json
+dmypy.json
+
+# Pyre type checker
+.pyre/

LICENSE

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+MIT License
+
+Copyright (c) 2022 Qiusheng Wu
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

Procfile

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+web: sh setup.sh && streamlit run streamlit_app.py

README.md

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+# streamlit-template
+
+A streamlit app template for geospatial applications based on [streamlit-option-menu](https://github.com/victoryhb/streamlit-option-menu).
+
+[![Binder](https://mybinder.org/badge_logo.svg)](https://mybinder.org/v2/gh/giswqs/streamlit-template/master?urlpath=proxy/8501/)
+
+App URL: <https://share.streamlit.io/giswqs/streamlit-template>
+
+![](https://i.imgur.com/xd64mCi.png)

apps/heatmap.py

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+import streamlit as st
+import leafmap.foliumap as leafmap
+
+
+def app():
+
+    st.title("Heatmap")
+
+    filepath = "https://raw.githubusercontent.com/giswqs/leafmap/master/examples/data/us_cities.csv"
+    m = leafmap.Map(tiles="stamentoner")
+    m.add_heatmap(
+        filepath,
+        latitude="latitude",
+        longitude="longitude",
+        value="pop_max",
+        name="Heat map",
+        radius=20,
+    )
+    m.to_streamlit(height=700)

apps/home.py

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+import streamlit as st
+import leafmap.foliumap as leafmap
+
+
+def app():
+    st.title("Home")
+
+    st.markdown(
+        """
+    A [streamlit](https://streamlit.io) app template for geospatial applications based on [streamlit-option-menu](https://github.com/victoryhb/streamlit-option-menu). 
+    To create a direct link to a pre-selected menu, add `?page=<app name>` to the URL, e.g., `?page=upload`.
+    https://share.streamlit.io/giswqs/streamlit-template?page=upload
+
+    """
+    )
+
+    m = leafmap.Map(locate_control=True)
+    m.add_basemap("ROADMAP")
+    m.to_streamlit(height=700)

apps/upload.py

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+import os
+import geopandas as gpd
+import streamlit as st
+
+
+def save_uploaded_file(file_content, file_name):
+    """
+    Save the uploaded file to a temporary directory
+    """
+    import tempfile
+    import os
+    import uuid
+
+    _, file_extension = os.path.splitext(file_name)
+    file_id = str(uuid.uuid4())
+    file_path = os.path.join(tempfile.gettempdir(), f"{file_id}{file_extension}")
+
+    with open(file_path, "wb") as file:
+        file.write(file_content.getbuffer())
+
+    return file_path
+
+
+def app():
+
+    st.title("Upload Vector Data")
+
+    row1_col1, row1_col2 = st.columns([2, 1])
+    width = 950
+    height = 600
+
+    with row1_col2:
+
+        backend = st.selectbox(
+            "Select a plotting backend", ["folium", "kepler.gl", "pydeck"], index=2
+        )
+
+        if backend == "folium":
+            import leafmap.foliumap as leafmap
+        elif backend == "kepler.gl":
+            import leafmap.kepler as leafmap
+        elif backend == "pydeck":
+            import leafmap.deck as leafmap
+
+        url = st.text_input(
+            "Enter a URL to a vector dataset",
+            "https://github.com/giswqs/streamlit-geospatial/raw/master/data/us_states.geojson",
+        )
+
+        data = st.file_uploader(
+            "Upload a vector dataset", type=["geojson", "kml", "zip", "tab"]
+        )
+
+        container = st.container()
+
+        if data or url:
+            if data:
+                file_path = save_uploaded_file(data, data.name)
+                layer_name = os.path.splitext(data.name)[0]
+            elif url:
+                file_path = url
+                layer_name = url.split("/")[-1].split(".")[0]
+
+            with row1_col1:
+                if file_path.lower().endswith(".kml"):
+                    gpd.io.file.fiona.drvsupport.supported_drivers["KML"] = "rw"
+                    gdf = gpd.read_file(file_path, driver="KML")
+                else:
+                    gdf = gpd.read_file(file_path)
+                lon, lat = leafmap.gdf_centroid(gdf)
+                if backend == "pydeck":
+
+                    column_names = gdf.columns.values.tolist()
+                    random_column = None
+                    with container:
+                        random_color = st.checkbox("Apply random colors", True)
+                        if random_color:
+                            random_column = st.selectbox(
+                                "Select a column to apply random colors", column_names
+                            )
+
+                    m = leafmap.Map(center=(40, -100))
+                    # m = leafmap.Map(center=(lat, lon))
+                    m.add_gdf(gdf, random_color_column=random_column)
+                    st.pydeck_chart(m)
+
+                else:
+                    m = leafmap.Map(center=(lat, lon), draw_export=True)
+                    m.add_gdf(gdf, layer_name=layer_name)
+                    if backend == "folium":
+                        m.zoom_to_gdf(gdf)
+                    m.to_streamlit(width=width, height=height)
+
+        else:
+            with row1_col1:
+                m = leafmap.Map()
+                st.pydeck_chart(m)

index.html

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+<!DOCTYPE html>
+<html>
+  <head>
+    <title>Streamlit Web App</title>
+    <style type="text/css">
+      html {
+        overflow: auto;
+      }
+      html,
+      body,
+      div,
+      iframe {
+        margin: 0px;
+        padding: 0px;
+        height: 100%;
+        border: none;
+      }
+      iframe {
+        display: block;
+        width: 100%;
+        border: none;
+        overflow-y: auto;
+        overflow-x: hidden;
+      }
+    </style>
+  </head>
+  <body>
+    <iframe
+      src="https://share.streamlit.io/giswqs/streamlit-template"
+      frameborder="0"
+      marginheight="0"
+      marginwidth="0"
+      width="100%"
+      height="100%"
+      scrolling="auto"
+      allow="geolocation"
+    >
+    </iframe>
+  </body>
+</html>

packages.txt

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+ffmpeg
+gifsicle
+build-essential
+python3-dev
+gdal-bin
+libgdal-dev

postBuild

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+# enable nbserverproxy
+jupyter serverextension enable --sys-prefix nbserverproxy
+# streamlit launches at startup
+mv streamlit_call.py ${NB_PYTHON_PREFIX}/lib/python*/site-packages/
+# enable streamlit extension
+jupyter serverextension enable --sys-prefix streamlit_call

requirements.txt

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+--find-links=https://girder.github.io/large_image_wheels GDAL
+geemap
+geopandas
+jupyter-server-proxy
+keplergl
+leafmap
+localtileserver
+nbserverproxy
+streamlit
+streamlit-option-menu
+

setup.sh

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+# sudo add-apt-repository ppa:ubuntugis/ppa && sudo apt-get update
+# sudo apt-get update
+# sudo apt-get install python3-dev
+# sudo apt-get install gdal-bin
+# sudo apt-get install libgdal-dev
+# export CPLUS_INCLUDE_PATH=/usr/include/gdal
+# export C_INCLUDE_PATH=/usr/include/gdal
+# gdal-config --version
+# pip install GDAL==$(gdal-config --version | awk -F'[.]' '{print $1"."$2}') localtileserver
+
+mkdir -p ~/.streamlit/
+echo "\
+[server]\n\
+headless = true\n\
+port = $PORT\n\
+enableCORS = false\n\
+\n\
+" > ~/.streamlit/config.toml