ogd-at-lab/notebooks/geocoding.ipynb

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   "source": [
    "# Geocoding addresses\n",
    "\n",
    "[![Binder](http://mybinder.org/badge_logo.svg)](https://mybinder.org/v2/gh/anitagraser/ogd-at-lab/main?urlpath=lab/tree/notebooks/geocoding.ipynb)\n",
    "\n",
    "Geocoding powered by [GeoPy](https://geopy.readthedocs.io/en/stable/) and [Nominatim](https://nominatim.org/release-docs/develop/api/Overview/)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "import hvplot.pandas\n",
    "from geopy.geocoders import Nominatim\n",
    "from utils.dataaccess import get_gdf_from_wfs\n",
    "from utils.plotting import hvplot_with_buffer\n",
    "from utils.converting import location_to_gdf"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "address = \"Giefinggasse 2, 1210 Wien\""
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "locator = Nominatim(user_agent=\"OGD.AT-Lab\")\n",
    "location = locator.geocode(address)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "print(location.address)\n",
    "print(\"Latitude = {}, Longitude = {}\".format(location.latitude, location.longitude))"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "geocoded_gdf = location_to_gdf(location, address)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "map_plot = hvplot_with_buffer(geocoded_gdf, 1000, size=400, title='Geocoded address with buffer')\n",
    "map_plot"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "## Interactive geocoding application with Panel "
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "import panel as pn"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "def my_plot(user_input=\"Giefinggasse 2, 1210 Wien\", buffer_meters=1000):\n",
    "    location = locator.geocode(user_input)\n",
    "    geocoded_gdf = location_to_gdf(location, user_input)\n",
    "    map_plot = hvplot_with_buffer(geocoded_gdf, buffer_meters, title=f'Geocoded address with {buffer_meters}m buffer')\n",
    "    return map_plot.opts(active_tools=['wheel_zoom']) "
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "kw = dict(user_input=\"Giefinggasse 2, 1210 Wien\", buffer_meters=(1,10000))\n",
    "pn.interact(my_plot, **kw)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "pn.template.FastListTemplate(\n",
    "    site=\"Panel\", title=\"Geocoding Demo\", \n",
    "    main=[pn.interact(my_plot, **kw)]\n",
    ").servable();"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": []
  }
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