{
 "cells": [
  {
   "cell_type": "code",
   "execution_count": 1,
   "metadata": {},
   "outputs": [],
   "source": [
    "import folium\n",
    "import pandas\n",
    "import yaml"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 2,
   "metadata": {},
   "outputs": [],
   "source": [
    "from xml.dom.minidom import parseString\n",
    "with open('WRSC2019_day1.kml', 'rt') as f:\n",
    "    doc=f.read()\n",
    "    p = parseString(doc)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 3,
   "metadata": {},
   "outputs": [],
   "source": [
    "nodes = p.getElementsByTagName('Placemark')\n",
    "way_points={}\n",
    "for n in nodes:\n",
    "    raw_coord = n.getElementsByTagName('coordinates')[0].firstChild.nodeValue.split(',')\n",
    "    name = (n.getElementsByTagName('name')[0].firstChild.nodeValue)\n",
    "    way_points[name] = [float(raw_coord[1]), float(raw_coord[0])]"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 4,
   "metadata": {},
   "outputs": [],
   "source": [
    "map_osm = folium.Map(location=way_points['waypoint3'], zoom_start=17)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 5,
   "metadata": {},
   "outputs": [],
   "source": [
    "def add_waypoint(name, latlon):\n",
    "    folium.map.Marker(\n",
    "        latlon,\n",
    "        icon=folium.features.DivIcon(\n",
    "            icon_size=(12,12),\n",
    "            icon_anchor=(0,0),\n",
    "            html='<div style=\"font-size: 12pt\">{}</div>'.format(name),\n",
    "            )\n",
    "        ).add_to(map_osm)\n",
    "    folium.CircleMarker(latlon, radius=5).add_to(map_osm)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 6,
   "metadata": {},
   "outputs": [],
   "source": [
    "marker_list = [['A', way_points['waypoint1']],\n",
    " ['B', way_points['waypoint2']],\n",
    " ['C', way_points['waypoint3']],\n",
    " ['D', way_points['waypoint4']]]"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 7,
   "metadata": {},
   "outputs": [],
   "source": [
    "def calc_offset(wp, anchor):\n",
    "    lat_offset = wp[0] - anchor[0]\n",
    "    lon_offset = wp[1] - anchor[1]\n",
    "    return [lat_offset, lon_offset]"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 8,
   "metadata": {},
   "outputs": [],
   "source": [
    "OFFSET = calc_offset(way_points['waypoint1'], way_points['anchor1'])"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 9,
   "metadata": {},
   "outputs": [],
   "source": [
    "def apply_offset(wp, OFFSET=OFFSET):\n",
    "    return [wp[0] - OFFSET[0], wp[1] - OFFSET[1]]"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 10,
   "metadata": {},
   "outputs": [],
   "source": [
    "def add_waypoint_south(name, latlon):\n",
    "    folium.map.Marker(\n",
    "        apply_offset(latlon),\n",
    "        icon=folium.features.DivIcon(\n",
    "            icon_size=(12,12),\n",
    "            icon_anchor=(0,0),\n",
    "            html='<div style=\"font-size: 12pt\">{}</div>'.format(name),\n",
    "            )\n",
    "        ).add_to(map_osm)\n",
    "    folium.CircleMarker(apply_offset(latlon), radius=5).add_to(map_osm)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 11,
   "metadata": {},
   "outputs": [],
   "source": [
    "for marker in marker_list:\n",
    "    add_waypoint(marker[0], marker[1])\n",
    "    add_waypoint_south(marker[0], marker[1]) # South"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 12,
   "metadata": {},
   "outputs": [
    {
     "data": {
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            var marker_3f0093ff597f4d7e86677e6b256e16ee = L.marker(
                [29.86763160455506, 121.53859287910889],
                {}
            ).addTo(map_16bb6341a4044bb0b43152d5aeaeed0e);
        
    
            var div_icon_bc0486bb43474dd6953780a78205531a = L.divIcon({"className": "empty", "html": "\u003cdiv style=\"font-size: 12pt\"\u003eD\u003c/div\u003e", "iconAnchor": [0, 0], "iconSize": [12, 12]});
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            var circle_marker_db0d5303c64744a1bb56f8fa59859569 = L.circleMarker(
                [29.86763160455506, 121.53859287910889],
                {"bubblingMouseEvents": true, "color": "#3388ff", "dashArray": null, "dashOffset": null, "fill": false, "fillColor": "#3388ff", "fillOpacity": 0.2, "fillRule": "evenodd", "lineCap": "round", "lineJoin": "round", "opacity": 1.0, "radius": 5, "stroke": true, "weight": 3}
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</script>\" style=\"position:absolute;width:100%;height:100%;left:0;top:0;border:none !important;\" allowfullscreen webkitallowfullscreen mozallowfullscreen></iframe></div></div>"
      ],
      "text/plain": [
       "<folium.folium.Map at 0x109304f60>"
      ]
     },
     "execution_count": 12,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "map_osm"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 13,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "[['A', [29.86713941703848, 121.5389755240182]],\n",
       " ['B', [29.86705406261338, 121.5385997804418]],\n",
       " ['C', [29.86720864100981, 121.5386780355552]],\n",
       " ['D', [29.86729537733915, 121.5384019484949]]]"
      ]
     },
     "execution_count": 13,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "marker_list # South"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 14,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "[29.86747564425439, 121.5391664546322]\n",
      "[29.86739028982929, 121.5387907110558]\n",
      "[29.86754486822572, 121.53886896616919]\n",
      "[29.86763160455506, 121.53859287910889]\n"
     ]
    }
   ],
   "source": [
    "for marker in marker_list:\n",
    "    print(apply_offset(marker[1])) # North"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": []
  }
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