docs/maplibre/geojson_points.ipynb

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   "metadata": {},
   "source": [
    "[![image](https://jupyterlite.rtfd.io/en/latest/_static/badge.svg)](https://demo.leafmap.org/lab/index.html?path=maplibre/geojson_points.ipynb)\n",
    "[![image](https://colab.research.google.com/assets/colab-badge.svg)](https://colab.research.google.com/github/opengeos/leafmap/blob/master/docs/maplibre/geojson_points.ipynb)\n",
    "[![image](https://mybinder.org/badge_logo.svg)](https://mybinder.org/v2/gh/opengeos/leafmap/HEAD)\n",
    "\n",
    "**Draw GeoJSON points**\n",
    "\n",
    "Draw points from a GeoJSON collection to a map.\n",
    "\n",
    "This source code of this example is adapted from the MapLibre GL JS example - [Draw GeoJSON points](https://maplibre.org/maplibre-gl-js/docs/examples/geojson-markers).\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": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "m = leafmap.Map(center=[0, 0], zoom=1, style=\"positron\")\n",
    "image = \"https://maplibre.org/maplibre-gl-js/docs/assets/osgeo-logo.png\"\n",
    "m.add_image(\"custom-marker\", image)\n",
    "source = {\n",
    "    \"type\": \"geojson\",\n",
    "    \"data\": {\n",
    "        \"type\": \"FeatureCollection\",\n",
    "        \"features\": [\n",
    "            {\n",
    "                \"type\": \"Feature\",\n",
    "                \"geometry\": {\"type\": \"Point\", \"coordinates\": [100.4933, 13.7551]},\n",
    "                \"properties\": {\"year\": \"2004\"},\n",
    "            },\n",
    "            {\n",
    "                \"type\": \"Feature\",\n",
    "                \"geometry\": {\"type\": \"Point\", \"coordinates\": [6.6523, 46.5535]},\n",
    "                \"properties\": {\"year\": \"2006\"},\n",
    "            },\n",
    "            {\n",
    "                \"type\": \"Feature\",\n",
    "                \"geometry\": {\"type\": \"Point\", \"coordinates\": [-123.3596, 48.4268]},\n",
    "                \"properties\": {\"year\": \"2007\"},\n",
    "            },\n",
    "            {\n",
    "                \"type\": \"Feature\",\n",
    "                \"geometry\": {\"type\": \"Point\", \"coordinates\": [18.4264, -33.9224]},\n",
    "                \"properties\": {\"year\": \"2008\"},\n",
    "            },\n",
    "            {\n",
    "                \"type\": \"Feature\",\n",
    "                \"geometry\": {\"type\": \"Point\", \"coordinates\": [151.195, -33.8552]},\n",
    "                \"properties\": {\"year\": \"2009\"},\n",
    "            },\n",
    "            {\n",
    "                \"type\": \"Feature\",\n",
    "                \"geometry\": {\"type\": \"Point\", \"coordinates\": [2.1404, 41.3925]},\n",
    "                \"properties\": {\"year\": \"2010\"},\n",
    "            },\n",
    "            {\n",
    "                \"type\": \"Feature\",\n",
    "                \"geometry\": {\"type\": \"Point\", \"coordinates\": [-104.8548, 39.7644]},\n",
    "                \"properties\": {\"year\": \"2011\"},\n",
    "            },\n",
    "            {\n",
    "                \"type\": \"Feature\",\n",
    "                \"geometry\": {\"type\": \"Point\", \"coordinates\": [-1.1665, 52.9539]},\n",
    "                \"properties\": {\"year\": \"2013\"},\n",
    "            },\n",
    "            {\n",
    "                \"type\": \"Feature\",\n",
    "                \"geometry\": {\"type\": \"Point\", \"coordinates\": [-122.6544, 45.5428]},\n",
    "                \"properties\": {\"year\": \"2014\"},\n",
    "            },\n",
    "            {\n",
    "                \"type\": \"Feature\",\n",
    "                \"geometry\": {\"type\": \"Point\", \"coordinates\": [126.974, 37.5651]},\n",
    "                \"properties\": {\"year\": \"2015\"},\n",
    "            },\n",
    "            {\n",
    "                \"type\": \"Feature\",\n",
    "                \"geometry\": {\"type\": \"Point\", \"coordinates\": [7.1112, 50.7255]},\n",
    "                \"properties\": {\"year\": \"2016\"},\n",
    "            },\n",
    "            {\n",
    "                \"type\": \"Feature\",\n",
    "                \"geometry\": {\"type\": \"Point\", \"coordinates\": [-71.0314, 42.3539]},\n",
    "                \"properties\": {\"year\": \"2017\"},\n",
    "            },\n",
    "            {\n",
    "                \"type\": \"Feature\",\n",
    "                \"geometry\": {\"type\": \"Point\", \"coordinates\": [39.2794, -6.8173]},\n",
    "                \"properties\": {\"year\": \"2018\"},\n",
    "            },\n",
    "            {\n",
    "                \"type\": \"Feature\",\n",
    "                \"geometry\": {\"type\": \"Point\", \"coordinates\": [26.0961, 44.4379]},\n",
    "                \"properties\": {\"year\": \"2019\"},\n",
    "            },\n",
    "            {\n",
    "                \"type\": \"Feature\",\n",
    "                \"geometry\": {\"type\": \"Point\", \"coordinates\": [-114.0879, 51.0279]},\n",
    "                \"properties\": {\"year\": \"2020\"},\n",
    "            },\n",
    "        ],\n",
    "    },\n",
    "}\n",
    "\n",
    "m.add_source(\"conferences\", source)\n",
    "layer = {\n",
    "    \"id\": \"conferences\",\n",
    "    \"type\": \"symbol\",\n",
    "    \"source\": \"conferences\",\n",
    "    \"layout\": {\n",
    "        \"icon-image\": \"custom-marker\",\n",
    "        \"text-field\": [\"get\", \"year\"],\n",
    "        \"text-font\": [\"Open Sans Semibold\", \"Arial Unicode MS Bold\"],\n",
    "        \"text-offset\": [0, 1.25],\n",
    "        \"text-anchor\": \"top\",\n",
    "    },\n",
    "}\n",
    "\n",
    "m.add_layer(layer)\n",
    "m"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "![](https://i.imgur.com/cJsnBby.png)"
   ]
  }
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