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 "cells": [
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   "source": [
    "# Pydeck + Earth Engine: Polygon FeatureCollection\n",
    "\n",
    "This is an example of using [pydeck](https://pydeck.gl) to visualize a Google Earth Engine `FeatureCollection` of polygons.\n",
    "To install and run this notebook locally, refer to the [Pydeck Earth Engine documentation](https://earthengine-layers.com/docs/developer-guide/pydeck-integration).\n",
    "\n",
    "To see this example online, view the [JavaScript version][js-example].\n",
    "\n",
    "[js-example]: https://earthengine-layers.com/examples/intl-boundary"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "Import required packages:"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "from pydeck_earthengine_layers import EarthEngineLayer\n",
    "import pydeck as pdk\n",
    "import ee"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "### Authenticate with Earth Engine\n",
    "\n",
    "Using Earth Engine requires authentication. If you don't have a Google account approved for use with Earth Engine, you'll need to request access. For more information and to sign up, go to https://signup.earthengine.google.com/."
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {
    "scrolled": true
   },
   "outputs": [],
   "source": [
    "try:\n",
    "    ee.Initialize()\n",
    "except Exception as e:\n",
    "    ee.Authenticate()\n",
    "    ee.Initialize()"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "### International Boundaries dataset\n",
    "\n",
    "This example uses the [Large Scale International Boundary Polygons][lsib] dataset, which contains simplified boundaries of countries.\n",
    "\n",
    "[lsib]: https://developers.google.com/earth-engine/datasets/catalog/USDOS_LSIB_SIMPLE_2017"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "Import the dataset by creating an Earth Engine object that references it."
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "dataset = ee.FeatureCollection('USDOS/LSIB_SIMPLE/2017')"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "Apply Earth Engine styling on this dataset. Here we render the fill of the polygon with a shade of green, and the border color with a shade of blue."
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "countries = dataset.style(\n",
    "    fillColor='b5ffb4',\n",
    "    color='00909F',\n",
    "    width=3\n",
    ")"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "Create a new `EarthEngineLayer` with this dataset that can then be passed to Pydeck."
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "layer = EarthEngineLayer(countries, id=\"international_boundaries\")"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "Then just pass this layer to a `pydeck.Deck` instance, and call `.show()` to create a map:"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "view_state = pdk.ViewState(latitude=36, longitude=10, zoom=3)\n",
    "r = pdk.Deck(\n",
    "    layers=[layer], \n",
    "    initial_view_state=view_state\n",
    ")\n",
    "r.show()"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": []
  }
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