{
 "cells": [
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "[![image](https://jupyterlite.rtfd.io/en/latest/_static/badge.svg)](https://demo.leafmap.org/lab/index.html?path=maplibre/fallback_image.ipynb)\n",
    "[![image](https://colab.research.google.com/assets/colab-badge.svg)](https://colab.research.google.com/github/opengeos/leafmap/blob/master/docs/maplibre/fallback_image.ipynb)\n",
    "[![image](https://mybinder.org/badge_logo.svg)](https://mybinder.org/v2/gh/opengeos/leafmap/HEAD)\n",
    "\n",
    "**Use a fallback image**\n",
    "\n",
    "This source code of this example is adapted from the MapLibre GL JS example - [Use a fallback image](https://maplibre.org/maplibre-gl-js/docs/examples/fallback-image/).\n",
    "\n",
    "Uncomment the following line to install [leafmap](https://leafmap.org) if needed."
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "# %pip install \"leafmap[maplibre]\""
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "import leafmap.maplibregl as leafmap"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "To run this notebook, you will need an [API key](https://docs.maptiler.com/cloud/api/authentication-key/) from [MapTiler](https://www.maptiler.com/cloud/). Once you have the API key, you can uncomment the following code block and replace `YOUR_API_KEY` with your actual API key. Then, run the code block code to set the API key as an environment variable."
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "# import os\n",
    "# os.environ[\"MAPTILER_KEY\"] = \"YOUR_API_KEY\""
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "m = leafmap.Map(center=[-77, 38.75], zoom=5, style=\"streets\")\n",
    "source = {\n",
    "    \"type\": \"geojson\",\n",
    "    \"data\": {\n",
    "        \"type\": \"FeatureCollection\",\n",
    "        \"features\": [\n",
    "            {\n",
    "                \"type\": \"Feature\",\n",
    "                \"geometry\": {\n",
    "                    \"type\": \"Point\",\n",
    "                    \"coordinates\": [-77.03238901390978, 38.913188059745586],\n",
    "                },\n",
    "                \"properties\": {\"title\": \"Washington DC\", \"icon\": \"monument\"},\n",
    "            },\n",
    "            {\n",
    "                \"type\": \"Feature\",\n",
    "                \"geometry\": {\"type\": \"Point\", \"coordinates\": [-79.9959, 40.4406]},\n",
    "                \"properties\": {\"title\": \"Pittsburgh\", \"icon\": \"bridges\"},\n",
    "            },\n",
    "            {\n",
    "                \"type\": \"Feature\",\n",
    "                \"geometry\": {\"type\": \"Point\", \"coordinates\": [-76.2859, 36.8508]},\n",
    "                \"properties\": {\"title\": \"Norfolk\", \"icon\": \"harbor\"},\n",
    "            },\n",
    "        ],\n",
    "    },\n",
    "}\n",
    "m.add_source(\"points\", source)\n",
    "layer = {\n",
    "    \"id\": \"points\",\n",
    "    \"type\": \"symbol\",\n",
    "    \"source\": \"points\",\n",
    "    \"layout\": {\n",
    "        \"icon-image\": [\n",
    "            \"coalesce\",\n",
    "            [\"image\", [\"concat\", [\"get\", \"icon\"], \"_15\"]],\n",
    "            [\"image\", \"marker_15\"],\n",
    "        ],\n",
    "        \"text-field\": [\"get\", \"title\"],\n",
    "        \"text-font\": [\"Open Sans Semibold\", \"Arial Unicode MS Bold\"],\n",
    "        \"text-offset\": [0, 0.6],\n",
    "        \"text-anchor\": \"top\",\n",
    "    },\n",
    "}\n",
    "m.add_layer(layer)\n",
    "m"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "![](https://i.imgur.com/0A9yuyL.png)"
   ]
  }
 ],
 "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": "3.11.9"
  }
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 "nbformat": 4,
 "nbformat_minor": 4
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