MapRadar/index.html at master · omit66/MapRadar · GitHub

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<!DOCTYPE html>
<html>

<head>
  <title>Geolocation</title>
  <meta name="viewport" content="initial-scale=1.0, user-scalable=no">
  <meta charset="utf-8">
  <style>
    /* Always set the map height explicitly to define the size of the div
       * element that contains the map. */

    #map {

      height: 100%; //  padding-top: 100%;
      //  width: 100%; //  border-radius: 50%;
      //    -moz-border-radius: 50%;
      //-webkit-border-radius: 50%;
      //    border: solid 2px red;
      z-index: 1; //transform: rotateZ(45deg);
    }
    /* Optional: Makes the sample page fill the window. */

    html,
    body {
      height: 100%;
      margin: 0;
      padding: 0;
    }
  </style>
</head>

<body>
  <div id="map"></div>
  <script>
    // Note: This example requires that you consent to location sharing when
    // prompted by your browser. If you see the error "The Geolocation service
    // failed.", it means you probably did not give permission for the browser to
    // locate you.

    var service;
    var map;
    var infoWindow;
    var markers = [];
    var pos = {
      lat: -34.397,
      lng: 150.644
    };

    function initMap() {
      var options = {
        //  scrollwheel: false,
        //    navigationControl: false,
        //  mapTypeControl: false,
        //  scaleControl: false,
        //  draggable: false,
        center: pos,
        zoom: 15,
        //  disableDefaultUI: true,
        streetViewControl: false,
        //  mapTypeId: google.maps.MapTypeId.ROADMAP,
        mapTypeId: google.maps.MapTypeId.SATELLITE,
        tilt: 0,
        heading: 90,
        styles: [{
          featureType: "poi",
          //elementType: "labels",
          stylers: [{
            visibility: "off"
          }]
        }]
      };


      map = new google.maps.Map(document.getElementById('map'), options);
      infoWindow = new google.maps.InfoWindow({
        map: map
      });

      // Try HTML5 geolocation.
      if (navigator.geolocation) {
        navigator.geolocation.getCurrentPosition(function(position) {
          pos = {
            lat: position.coords.latitude,
            lng: position.coords.longitude
          };
          drawCurrentPos();
          drawKnownPlaces();
          //  nearbySearch();


        }, function() {
          handleLocationError(true, infoWindow, map.getCenter());
        });
      } else {
        // Browser doesn't support Geolocation
        handleLocationError(false, infoWindow, map.getCenter());
      }
      //google.maps.event.addListener(map, 'bounds_changed', function() {
      google.maps.event.addListener(map, 'idle', function() {
        //nearbySearch();
        drawKnownPlaces();
      });

    }

    function drawCurrentPos() {
      var marker = new google.maps.Marker({
        position: pos,
        map: map,
        icon: 'http://maps.google.com/mapfiles/ms/icons/blue-dot.png',
        title: "You are here!"
      });
      map.setCenter(pos);

    }

    async function nearbySearch() {
      await clearMarkers();
      var request = {
        location: pos,
        radius: '5000'
        //  types: ['store']
      };
      service = new google.maps.places.PlacesService(map);
      service.nearbySearch(request, callback);
      console.log("SEARCH");
    }

    // Removes the markers from the map, but keeps them in the array.
    function clearMarkers() {
      for (var i = 0; i < markers.length; i++) {
        markers[i].setMap(null);
      }
      markers = [];
      console.log("CLEAR");
    }

    function callback(results, status) {
      if (status === google.maps.places.PlacesServiceStatus.OK) {
        console.log(results);
        results.forEach(createMarker);
      }
    }


    var placeIDs = [{
        id: 'ChIJNePuDBAosUcRUd83-VyI6MI',
        icon: './icons/landmark.png'
      },
      {
        id: 'ChIJzTifhbEpsUcRv_dUWHrzUA0',
        icon: './icons/start.png'
      },
      {
        id: 'ChIJ6d_ZgDImsUcRBL5oEOrb8UU',
        icon: './icons/home.png'
      },
      {
        id: 'ChIJQRQv9BkosUcRJA6c7ffoofs',
        icon: './icons/finish.png'
      }
    ];

    async function drawKnownPlaces() {
      await clearMarkers();

      for (var i = 0; i < placeIDs.length; i++) {
        var id = placeIDs[i].id;
        var request = {
          placeId: id

        };
        service = new google.maps.places.PlacesService(map);
        await service.getDetails(request, callbackPlace);
      }
    }

    function callbackPlace(place, status) {
      if (status === google.maps.places.PlacesServiceStatus.OK) {
        for (var i = 0; i < placeIDs.length; i++) {
          var id = placeIDs[i].id;
          if (place.place_id === id) {
            place.icon = placeIDs[i].icon;
          }
        }
        createMarker(place);
      } else {
        console.log("ERROR: ", status);
      }
    }


    function createViewBox() {
      var viewportBox;
      var bounds = map.getBounds();

      var ne = bounds.getNorthEast();
      var sw = bounds.getSouthWest();

      var viewportPoints = [
        ne, new google.maps.LatLng(ne.lat(), sw.lng()),
        sw, new google.maps.LatLng(sw.lat(), ne.lng()), ne
      ];
      /*strokeOpacity = 0 , if don't want to show the border moving. */
      if (viewportBox) {
        viewportBox.setPath(viewportPoints);
      } else {
        viewportBox = new google.maps.Polyline({
          path: viewportPoints,
          strokeColor: '#FF0000',
          strokeOpacity: 1.0,
          strokeWeight: 4
        });
        //viewportBox.setMap(map);
      };
      return viewportBox;
    }

    async function createMarker(place) {
      //console.log("PLACE: ", place.name);
      var viewportBox = await createViewBox();

      if (!google.maps.geometry.poly.containsLocation(place.geometry.location, viewportBox)) {
        var padding = 0.001;

        var bounds = map.getBounds();
        var sw = bounds.getSouthWest();
        var ne = bounds.getNorthEast();
        var m = (place.geometry.location.lat() - pos.lat) / (place.geometry.location.lng() - pos.lng);

        var placeLoc;
        var x, y;
        var compl = false;
        if (ne.lng() <= place.geometry.location.lng()) {
          y = m * (ne.lng() - pos.lng) + pos.lat;
          x = ne.lng() - padding;

        } else if (sw.lng() >= place.geometry.location.lng()) {
          y = m * (sw.lng() - pos.lng) + pos.lat;
          x = sw.lng() + (padding);
        }
        if (y <= ne.lat() && y >= sw.lat()) {
          compl = true;
        }
        if ((!compl)) {
          if (ne.lat() <= place.geometry.location.lat()) {
            x = (ne.lat() + m * pos.lng - pos.lat) / m;
            y = ne.lat() - padding;;
          } else if (sw.lat() >= place.geometry.location.lat()) {
            x = (sw.lat() + m * pos.lng - pos.lat) / m;
            y = sw.lat() + padding / 2;
          }
        }


        placeLoc = {
          lat: y,
          lng: x
        };
        var image = {
          url: place.icon,
          //  size: new google.maps.Size(71, 71),
          origin: new google.maps.Point(0, 0),
          anchor: new google.maps.Point(17, 34),
          scaledSize: new google.maps.Size(50, 50)
        };
        var marker = new google.maps.Marker({
          map: map,
          icon: image,
          position: placeLoc
          //  label: place.name
        });
        markers.push(marker);
      }
      var placeLoc = place.geometry.location;
      var marker = new google.maps.Marker({
        map: map,
        position: placeLoc
      });
      //  markers.push(marker);


      google.maps.event.addListener(marker, 'click', function() {
        infoWindow.setContent(place.name);
        infoWindow.open(map, this);
      });
    }

    function handleLocationError(browserHasGeolocation, infoWindow, pos) {
      infoWindow.setPosition(pos);
      infoWindow.setContent(browserHasGeolocation ?
        'Error: The Geolocation service failed.' :
        'Error: Your browser doesn\'t support geolocation.');
    }

    function rotate(degree) {

      if (map != "undefined") {
        var heading = map.getHeading() || 0;
        console.log("heading" + heading);
        map.setHeading(degree);
      }
      return;

      var mapDiv = document.getElementById('map');
      if (typeof mapDiv.style.transform !== "undefined") {
        mapDiv.style.transform = "rotateZ(" + degree + "deg)";
      } else if (typeof mapDiv.style.webkitTransform !== "undefined") {
        mapDiv.style.webkitTransform = "rotateZ(" + degree + "deg)";
      }
      /* timer = setTimeout(function() {
          rotate(++degree);
      },5); */
      for (var i = 0; i < markers.length; i++) {
        var icon = markers[i].icon;
        icon.roation = -degree;
        markers[i].setIcon(icon);
      }
    }

    // browser agnostic orientation
    function getBrowserOrientation() {

      var orientation;
      if (screen.orientation && screen.orientation.type) {
        orientation = screen.orientation.type;
      } else {
        orientation = screen.orientation ||
          screen.mozOrientation ||
          screen.msOrientation;
      }

      /*
        'portait-primary':      for (screen width < screen height, e.g. phone, phablet, small tablet)
                                  device is in 'normal' orientation
                                for (screen width > screen height, e.g. large tablet, laptop)
                                  device has been turned 90deg clockwise from normal
        'portait-secondary':    for (screen width < screen height)
                                  device has been turned 180deg from normal
                                for (screen width > screen height)
                                  device has been turned 90deg anti-clockwise (or 270deg clockwise) from normal
        'landscape-primary':    for (screen width < screen height)
                                  device has been turned 90deg clockwise from normal
                                for (screen width > screen height)
                                  device is in 'normal' orientation
        'landscape-secondary':  for (screen width < screen height)
                                  device has been turned 90deg anti-clockwise (or 270deg clockwise) from normal
                                for (screen width > screen height)
                                  device has been turned 180deg from normal
      */

      return orientation;
    }

    // our current position
    var positionCurrent = {
      lat: null,
      lng: null,
      hng: null
    };
    var defaultOrientation;
    // called on device orientation change
    function onHeadingChange(event) {

      console.log("WAS MACHST DU");
      var heading = event.alpha;

      if (typeof event.webkitCompassHeading !== "undefined") {
        heading = event.webkitCompassHeading; //iOS non-standard
      }

      var orientation = getBrowserOrientation();

      if (typeof heading !== "undefined" && heading !== null) { // && typeof orientation !== "undefined") {
        // we have a browser that reports device heading and orientation


        // what adjustment we have to add to rotation to allow for current device orientation
        var adjustment = 0;
        if (defaultOrientation === "landscape") {
          adjustment -= 90;
        }

        if (typeof orientation !== "undefined") {
          var currentOrientation = orientation.split("-");

          if (defaultOrientation !== currentOrientation[0]) {
            if (defaultOrientation === "landscape") {
              adjustment -= 270;
            } else {
              adjustment -= 90;
            }
          }

          if (currentOrientation[1] === "secondary") {
            adjustment -= 180;
          }
        }

        positionCurrent.hng = heading + adjustment;

        var phase = positionCurrent.hng < 0 ? 360 + positionCurrent.hng : positionCurrent.hng;
        //  positionHng.textContent = (360 - phase | 0) + "°";
        rotate(positionCurrent.hng);
        console.log(positionCurrent.hng + "deg");
        // apply rotation to compass rose
        //  if (typeof rose.style.transform !== "undefined") {
        //rose.style.transform = "rotateZ(" + positionCurrent.hng + "deg)";
        console.log(positionCurrent.hng + "deg");

        //      } else if (typeof rose.style.webkitTransform !== "undefined") {
        //rose.style.webkitTransform = "rotateZ(" + positionCurrent.hng + "deg)";
        console.log(positionCurrent.hng + "deg");

        //}
      } else {
        // device can't show heading

        //    positionHng.textContent = "n/a";
        //showHeadingWarning();
      }
    }


    window.addEventListener("deviceorientation", onHeadingChange);
  </script>
  <script async defer src="https://maps.googleapis.com/maps/api/js?key=AIzaSyDmUXs8dssxP7hTy0TCYm4brJUYJU01Vs0&libraries=places,geometry&callback=initMap">
  </script>
</body>

</html>