{
 "cells": [
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "import geemap\n",
    "import os\n",
    "import xarray as xr\n",
    "from ipyleaflet import Map, Velocity, TileLayer, basemaps"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "Map = geemap.Map(center=[44.33, -130.60], zoom=3, interpolation='nearest')\n",
    "Map.add_layer(basemaps.CartoDB.DarkMatter)\n",
    "Map"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "file_path = os.path.abspath('../data/wind-global.nc')\n",
    "if not os.path.exists(file_path):\n",
    "    url = 'https://github.com/giswqs/geemap/raw/master/examples/data/wind-global.nc'\n",
    "    import requests\n",
    "    r = requests.get(url)\n",
    "    wind_data = r.content\n",
    "    with open(file_path, 'wb') as f:\n",
    "        f.write(wind_data)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "ds = xr.open_dataset(file_path)\n",
    "ds"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "display_options = {\n",
    "    'velocityType': 'Global Wind',\n",
    "    'displayPosition': 'bottomleft',\n",
    "    'displayEmptyString': 'No wind data'\n",
    "}\n",
    "wind = Velocity(\n",
    "    data=ds, \n",
    "    name = 'Velocity',\n",
    "    zonal_speed='u_wind', meridional_speed='v_wind', \n",
    "    latitude_dimension='lat', longitude_dimension='lon', \n",
    "    velocity_scale=0.01, max_velocity=20, \n",
    "    display_options=display_options\n",
    ")\n",
    "Map.add_layer(wind)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": []
  }
 ],
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