{
 "cells": [
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "from ipyleaflet import Map, GeoJSON\n",
    "import json\n",
    "import os\n",
    "import requests\n",
    "\n",
    "if not os.path.exists(\"europe_110.geo.json\"):\n",
    "    url = \"https://github.com/jupyter-widgets/ipyleaflet/raw/master/examples/europe_110.geo.json\"\n",
    "    r = requests.get(url)\n",
    "    with open(\"europe_110.geo.json\", \"w\") as f:\n",
    "        f.write(r.content.decode(\"utf-8\"))\n",
    "\n",
    "with open(\"europe_110.geo.json\", \"r\") as f:\n",
    "    data = json.load(f)\n",
    "\n",
    "m = Map(center=(50.6252978589571, 0.34580993652344), zoom=3)\n",
    "geo_json = GeoJSON(\n",
    "    data=data,\n",
    "    style={\n",
    "        \"color\": \"green\",\n",
    "        \"opacity\": 1,\n",
    "        \"weight\": 1.9,\n",
    "        \"dashArray\": \"9\",\n",
    "        \"fillOpacity\": 0.1,\n",
    "    },\n",
    ")\n",
    "m.add(geo_json)\n",
    "\n",
    "m"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "from ipywidgets import Text, HTML\n",
    "from ipyleaflet import WidgetControl, GeoJSON\n",
    "\n",
    "html1 = HTML(\n",
    "    \"\"\"\n",
    "    <h4>EU population density</h4>\n",
    "    Hover over a state\n",
    "\"\"\"\n",
    ")\n",
    "html1.layout.margin = \"0px 20px 20px 20px\"\n",
    "control1 = WidgetControl(widget=html1, position=\"bottomright\")\n",
    "m.add(control1)\n",
    "\n",
    "\n",
    "def update_html(feature, **kwargs):\n",
    "    html1.value = \"\"\"\n",
    "        <h4>EU population density</h4>\n",
    "        <h4><b>{}</b></h4>\n",
    "        {} people / mi^2\n",
    "    \"\"\".format(\n",
    "        feature[\"properties\"][\"name\"], feature[\"properties\"][\"pop_est\"]\n",
    "    )\n",
    "\n",
    "\n",
    "geo_json.on_hover(update_html)"
   ]
  }
 ],
 "metadata": {
  "kernelspec": {
   "display_name": "Python 3 (ipykernel)",
   "language": "python",
   "name": "python3"
  },
  "language_info": {
   "codemirror_mode": {
    "name": "ipython",
    "version": 3
   },
   "file_extension": ".py",
   "mimetype": "text/x-python",
   "name": "python",
   "nbconvert_exporter": "python",
   "pygments_lexer": "ipython3",
   "version": "3.10.0"
  }
 },
 "nbformat": 4,
 "nbformat_minor": 4
}