Geolocation with PlacesServices

Geolocation with PlacesServices - javascript

What i am trying to do is find my current location with the Geolocation API, and then add the google places, to show what is around myself. However what I have so far only returns a specific location...
<script>
var map;
var infowindow;
function initialize() {
var pyrmont = new google.maps.LatLng(-33.8665433, 151.1956316);
map = new google.maps.Map(document.getElementById('map'), {
mapTypeId: google.maps.MapTypeId.ROADMAP,
center: pyrmont,
zoom: 15
});
var request = {
location: pyrmont,
radius: 500,
types: ['store']
};
infowindow = new google.maps.InfoWindow();
var service = new google.maps.places.PlacesService(map);
service.nearbySearch(request, callback);
}
function callback(results, status) {
if (status == google.maps.places.PlacesServiceStatus.OK) {
for (var i = 0; i < results.length; i++) {
createMarker(results[i]);
}
}
}
function createMarker(place) {
var placeLoc = place.geometry.location;
var marker = new google.maps.Marker({
map: map,
position: place.geometry.location
});
google.maps.event.addListener(marker, 'click', function() {
infowindow.setContent(place.name);
infowindow.open(map, this);
});
}
google.maps.event.addDomListener(window, 'load', initialize);
</script>
As you can see pyrmont - gives me the lat and long, but i would like to replace with this the users current location. So I can find out where they are and then give them some shops. I keep drawing a blank when I try to do this. I have done geolocation before with:
new google.maps.LatLng(position.coords.latitude, position.coords.longitude);
however if I use this var in the lat long section I get a loverly error. Thanks for any help in advance.

Okay this did it:
<script>
var map;
      function initialize() {
        var mapOptions = {
          
        };
        map = new google.maps.Map(document.getElementById('contact-map'),{
    zoom: 15,
    mapTypeId: google.maps.MapTypeId.ROADMAP   
        });
        // Try HTML5 geolocation
        if(navigator.geolocation) {
          navigator.geolocation.getCurrentPosition(function(position) {
            var pos = new google.maps.LatLng(position.coords.latitude,
                                             position.coords.longitude);
            var request = {
          location: pos,
          radius: 500,
          types: ['store']
        };
            
            var marker = new google.maps.MarkerImage('../img/layout/marker.png');
            
            var infowindow = new google.maps.InfoWindow({
              map: map,
              position: pos,
              icon: marker,
              content: 'youre here'
            });
            var service = new google.maps.places.PlacesService(map);
            service.nearbySearch(request, callback);            
            
            function callback(results, status) {
        if (status == google.maps.places.PlacesServiceStatus.OK) {
          for (var i = 0; i < results.length; i++) {
            createMarker(results[i]);
          }
        }
      }
      
      function createMarker(place) {
        var placeLoc = place.geometry.location;
        var marker = new google.maps.Marker({
          map: map,
          position: place.geometry.location
        });
      google.maps.event.addListener(marker, 'click', function() {
      infowindow.setContent(place.name);
      infowindow.open(map, this);
  });
  }
            
            map.setCenter(pos);
          }, function() {
            handleNoGeolocation(true);
          });
        } else {
          // Browser doesn't support Geolocation
          handleNoGeolocation(false);
        }
      }
      function handleNoGeolocation(errorFlag) {
        if (errorFlag) {
          var content = 'Error: The Geolocation service failed.';
        } else {
          var content = 'Error: Your browser doesn\'t support geolocation.';
        }
        var options = {
          map: map,
          position: new google.maps.LatLng(60, 105),
          content: content
        };
        var infowindow = new google.maps.InfoWindow(options);
        map.setCenter(options.position);
      }
      google.maps.event.addDomListener(window, 'load', initialize);
</script>

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I have this Javascript code on Google maps with geolocation and direction and I am using it in cordova , it gives me problems because it lacks the event Deviceready.
I tried to put it , but it was not working.
You are able to add it in the right way ?
Code:
var directionsDisplay;
var directionsService = new google.maps.DirectionsService();
var map;
// default location. When geolocation tracks the client, this variable is set to that location
function initialize() {
var mapOptions = {
zoom: 15,
mapTypeId: google.maps.MapTypeId.ROADMAP
};
directionsDisplay = new google.maps.DirectionsRenderer();
map = new google.maps.Map(document.getElementById('map-canvas'), mapOptions);
//here there is marker
directionsDisplay.setMap(map);
map.setCenter(mylocation);
}
function updateRoute() {
calcRoute(mylocation);
}
function calcRoute(start) {
var start = mylocation;
var end = document.getElementById('end').value;
var request = {
origin:start,
destination:end,
travelMode: google.maps.TravelMode.WALKING,
};
directionsService.route(request, function(response, status) {
if (status == google.maps.DirectionsStatus.OK) {
directionsDisplay.setDirections(response);
}
});
}
// Try HTML5 geolocation
if(navigator.geolocation) {
navigator.geolocation.getCurrentPosition(function(position) {
mylocation = new google.maps.LatLng(position.coords.latitude, position.coords.longitude);
//document.getElementById('start').value = ;
if (map) {
calcRoute(position.coords.latitude +','+ position.coords.longitude);
map.setCenter(mylocation);
//*Posizione Utente*//
var image = 'user.png'
var marker1 = new google.maps.Marker({
position: mylocation,
map: map,
title: 'ciao!',
icon: image
});
google.maps.event.addListener(marker1, 'click', function() {
infowindow1.open(map,marker1);
});
var infowindow1 = new google.maps.InfoWindow({
content: '<img src="user.png">Sono Qui.....'
});
}
})
}
google.maps.event.addDomListener(window, 'load', initialize);

Markers on Google Maps API are not showing up with Geolocation

I am trying to have places come up on the map based on the users geolocation. I know the geolocation works and map shows up, but none of the markers come up showing the local businesses. I am not getting any errors in console as well. I made sure that the script in my html is passing both the library and the API key, but just in case, here is the script:
<script type="text/javascript" src="https://maps.googleapis.com/maps/api/js?libraries=places&key=MY_KEY"></script>
Here is my JavaScript...
var map;
var infowindow;
var service;
function initialize() {
map = new google.maps.Map(document.getElementById('map-canvas'), {
zoom: 13,
mapTypeControl: false,
panControl: true,
panControlOptions: {
position: google.maps.ControlPosition.TOP_RIGHT
},
zoomControl: true,
zoomControlOptions: {
position: google.maps.ControlPosition.RIGHT_CENTER
},
scaleControl: true,
streetViewControl: false
});
// Start Geolocation
if(navigator.geolocation) {
navigator.geolocation.getCurrentPosition(function(position) {
var pos = new google.maps.LatLng(position.coords.latitude,
position.coords.longitude);
var infowindow = new google.maps.InfoWindow({
map: map,
position: pos,
content: 'Found You!'
});
var request = {
location: pos,
radius: 500,
types: ['store']
};
infowindow = new google.maps.InfoWindow();
service = new google.maps.places.PlacesService(map);
service.nearbySearch(request, callback);
map.setCenter(pos);
}, function() {
handleNoGeolocation(true);
});
} else {
// Browser doesn't support Geolocation
handleNoGeolocation(false);
}
}
// Callback for Places
function callback(results, status) {
if (status == google.maps.places.PlacesServiceStatus.OK) {
for (var i = 0; i < results.length; i++) {
var place = results[i];
createMarker(results[i]);
}
}
}
// Create Marker for Places
function createMarker(place) {
var placeLoc = place.geometry.location;
var marker = new google.maps.Marker({
map: map,
position: place.geometry.location
});
google.maps.event.addListener(marker, 'click', function() {
infowindow.setContent(place.name);
infowindow.open(map, this);
});
}
// Google Maps Error Flags
function handleNoGeolocation(errorFlag) {
if (errorFlag) {
var content = 'Error: The Geolocation service failed.';
} else {
var content = 'Error: Your browser doesn\'t support geolocation.';
}
var options = {
map: map,
position: new google.maps.LatLng(60, 105),
content: content
};
var infowindow = new google.maps.InfoWindow(options);
map.setCenter(options.position);
}

Here is my updated coded that I got to work.. I made some customizations to the markers, but this works now. As mentioned in the comments, I believe the issue had to do with the variables set for infowindow. I changed the geolocation one to 'infowindowLocation' instead and adjusted in the error flags section.
var map;
var infowindow;
var service;
function initialize() {
map = new google.maps.Map(document.getElementById('map-canvas'), {
zoom: 13,
mapTypeControl: false,
panControl: true,
panControlOptions: {
position: google.maps.ControlPosition.TOP_RIGHT
},
zoomControl: true,
zoomControlOptions: {
position: google.maps.ControlPosition.RIGHT_CENTER
},
scaleControl: true,
streetViewControl: false
});
// Start Geolocation
if(navigator.geolocation) {
navigator.geolocation.getCurrentPosition(function(position) {
var pos = new google.maps.LatLng(position.coords.latitude,
position.coords.longitude);
var infowindowLocation = new google.maps.InfoWindow({
map: map,
position: pos,
content: 'Found You!'
});
var request = {
location: pos,
radius: 3218.69,
types: ['dentist']
};
infowindow = new google.maps.InfoWindow();
service = new google.maps.places.PlacesService(map);
service.nearbySearch(request, callback);
map.setCenter(pos);
}, function() {
handleNoGeolocation(true);
});
} else {
// Browser doesn't support Geolocation
handleNoGeolocation(false);
}
}
// Callback for Places
function callback(results, status) {
if (status == google.maps.places.PlacesServiceStatus.OK) {
for (var i = 0; i < results.length; i++) {
var place = results[i];
createMarker(results[i]);
}
}
}
// Create Marker for Places
function createMarker(place) {
var placeLoc = place.geometry.location;
var image = 'img/flag.png';
var marker = new google.maps.Marker({
map: map,
position: place.geometry.location,
title: place.name,
animation: google.maps.Animation.DROP,
icon: image
});
google.maps.event.addListener(marker, 'click', function() {
infowindow.setContent(place.name);
infowindow.open(map,marker);
});
}
// Google Maps Error Flags
function handleNoGeolocation(errorFlag) {
if (errorFlag) {
var content = 'Error: The Geolocation service failed.';
} else {
var content = 'Error: Your browser doesn\'t support geolocation.';
}
var options = {
map: map,
position: new google.maps.LatLng(60, 105),
content: content
};
var infowindowLocation = new google.maps.InfoWindow(options);
map.setCenter(options.position);
}
initialize();

Google maps how to search for places with button click

i got this code but it appears when the map load, i need that by clicking in a button to hide and show the search result, can an1 help please ?
code:
var map;
var infowindow;
function initialize() {
var pyrmont = new google.maps.LatLng(-33.8665433, 151.1956316);
map = new google.maps.Map(document.getElementById('map-canvas'), {
center: pyrmont,
zoom: 15
});
var request = {
location: pyrmont,
radius: 500,
types: ['store']
};
infowindow = new google.maps.InfoWindow();
var service = new google.maps.places.PlacesService(map);
service.nearbySearch(request, callback);
}
function callback(results, status) {
if (status == google.maps.places.PlacesServiceStatus.OK) {
for (var i = 0; i < results.length; i++) {
createMarker(results[i]);
}
}
}
function createMarker(place) {
var placeLoc = place.geometry.location;
var marker = new google.maps.Marker({
map: map,
position: place.geometry.location
});
google.maps.event.addListener(marker, 'click', function() {
infowindow.setContent(place.name);
infowindow.open(map, this);
});
}
google.maps.event.addDomListener(window, 'load', initialize);\
EDIT
I trying to create a button that when clicked shows the search result of google places .. I hid the maker and made a function to the button show the marker, but this is not working out
function createMarker(place) {
var placeLoc = place.geometry.location;
var markersr = new google.maps.Marker({
map: map,
icon:icon2,
visible:false,
position: place.geometry.location,
});
function
function showsearch() {
markersr.setVisible(true);
}
button
<input type="checkbox" name="btn2" onClick="showsearch()" class="btn2" >

Please refer the link. http://jsfiddle.net/y829C/1/
var mapOptions = {
center: new google.maps.LatLng(latitude, longitude),
zoom: 8,
mapTypeId: google.maps.MapTypeId.ROADMAP
};
Update:
Refer the link:http://jsfiddle.net/y829C/11/

Google maps zoom level for country

I'm having a problem working out how to set the zoom level for different countries, I have managed to get the map working and displaying the country, just cannot seem to work out how to set the zoom level.
Any help would be appreciated.
Thanks
George
<script type="text/javascript">
var infowindow = null;
$(document).ready(function () { initialize(); });
function initialize() {
//var geocoder = new google.maps.Geocoder();
//geocoder.geocode({ 'address': address }, function (results, status) {
// if (status == google.maps.GeocoderStatus.OK) {
// map.setCenter(results[0].geometry.location);
// map.fitBounds(results[0].geometry.viewport);
// }
//});
var centerMap = new google.maps.LatLng(#Html.Raw(#item.strLatLong));
var myOptions = {
zoom: 4, //<<-------How can I chnage this
center: centerMap,
mapTypeId: google.maps.MapTypeId.ROADMAP
}
var map = new google.maps.Map(document.getElementById("WeatherMapLocation"), myOptions);
setMarkers(map, sites);
infowindow = new google.maps.InfoWindow({
content: "loading..."
});
var bikeLayer = new google.maps.BicyclingLayer();
bikeLayer.setMap(map);
}
function setMarkers(map, markers) {
for (var i = 0; i < markers.length; i++) {
var sites = markers[i];
var siteLatLng = new google.maps.LatLng(sites[1], sites[2]);
var marker = new google.maps.Marker({
position: siteLatLng,
map: map,
title: sites[0],
zIndex: sites[3],
html: sites[4]
});
var contentString = "Some content";
google.maps.event.addListener(marker, "click", function () {
infowindow.setContent(this.html);
infowindow.open(map, this);
});
}
}
</script>

From the documentation on the Geocoder, there is a viewport and a bounds returned in the geocoder's response which can be used to center and zoom the map on the result.
if (results && results[0] && results[0].geometry && results[0].geometry.viewport)
map.fitBounds(results[0].geometry.viewport);
working example

Google maps api and geolocation, Javascript and Html

Hey I'm new to the google maps api, and I have an embedded map, i'm using geolocation to get the users lat and long, and i'm then filling in the gaps in the maps api. The map, however doesn't work when I use the generated lat and long, but does work if i just type one in
Non-working code:
var map;
var infowindow;
function initialize() {
if (navigator.geolocation)
{
navigator.geolocation.getCurrentPosition(showPosition);
}
function showPosition(position)
{
var latlon = new google.maps.LatLng( position.coords.latitude + "," + position.coords.longitude );
map = new google.maps.Map(document.getElementById('map'), {
mapTypeId: google.maps.MapTypeId.ROADMAP,
center: latlon,
zoom: 15,
disableDefaultUI: true
});
var request = {
location: latlon,
radius: 555,
types: ['bar']
};
infowindow = new google.maps.InfoWindow();
var service = new google.maps.places.PlacesService(map);
service.search(request, callback);
}
function callback(results, status) {
if (status == google.maps.places.PlacesServiceStatus.OK) {
for (var i = 0; i < results.length; i++) {
createMarker(results[i]);
}
}
}
}
function createMarker(place) {
var placeLoc = place.geometry.location;
var marker = new google.maps.Marker({
map: map,
position: place.geometry.location
});
google.maps.event.addListener(marker, 'click', function() {
alert(place.name);
});
}
google.maps.event.addDomListener(window, 'load', initialize);
Working code
var map;
var infowindow;
function initialize() {
var latlon = new google.maps.LatLng(-33.8665433, 151.1956316);
map = new google.maps.Map(document.getElementById('map'), {
mapTypeId: google.maps.MapTypeId.ROADMAP,
center: latlon,
zoom: 15,
disableDefaultUI: true
});
var request = {
location: latlon,
radius: 555,
types: ['bar']
};
infowindow = new google.maps.InfoWindow();
var service = new google.maps.places.PlacesService(map);
service.search(request, callback);
}
function callback(results, status) {
if (status == google.maps.places.PlacesServiceStatus.OK) {
for (var i = 0; i < results.length; i++) {
createMarker(results[i]);
}
}
}
function createMarker(place) {
var placeLoc = place.geometry.location;
var marker = new google.maps.Marker({
map: map,
position: place.geometry.location
});
google.maps.event.addListener(marker, 'click', function() {
alert(place.name);
});
}
google.maps.event.addDomListener(window, 'load', initialize);
Any help if appreciated :)

Replace your line:
var latlon = new google.maps.LatLng
(position.coords.latitude + "," + position.coords.longitude);
with
var latlon = new google.maps.LatLng
(position.coords.latitude, position.coords.longitude);
The problem is in concatenating two values into one where constructor expects two parameters.

Develop Reference

JavaScript is the programming language of the Web.

Geolocation with PlacesServices - javascript

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Google maps api and geolocation, Javascript and Html

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