I have a question relevant to Google Maps API. I am learning how to use the Google Maps API. I can just show the map in the div tag, but what I want is to be able to click on the map and show the marker and return the LatLng of the clicked point.
function initialize(v_lat,v_long,v_place) {
var latlng = new google.maps.LatLng(-34.397, 150.644);
var myOptions = {
zoom: 15,
center: latlng,
mapTypeId: google.maps.MapTypeId.SATELLITE
};
var map = new google.maps.Map( document.getElementById("map_canvas") , myOptions );
}
here is the click event example
where you click on map marker place on that point and click on marker which will return the latlng of that location.
try this
var marker;
google.maps.event.addListener(map, 'click', function() {
if(marker==null){
marker = new google.maps.Marker({
position: myLatlng,
map: map,
title:"Hello World!"
});
google.maps.event.addListener(marker, 'click', function() {
alert("latlng" + marker.getPosition());
});
}
});
here is the link for google map v3 you can find all tutorials related to the map
http://code.google.com/apis/maps/documentation/javascript/tutorial.html
http://code.google.com/apis/maps/documentation/javascript/events.html
Related
I am making an aspx page to track vehicles. The only thing I am sticking with is that I don't know how to remove tooltip text from google markers.
The data is displaying correctly.
In the image above, (1) is being shown when I am taking my cursor on marker image and (2) is coming when I am clicking on the marker.
I want to hide (1). How to do that?
I am using the following code:
function initMap() {
var image = '../images/FireTruck.png';
var markers = JSON.parse('<%=ConvertDataTabletoString() %>');
var mapOptions = {
center: new google.maps.LatLng(markers[0].lat, markers[0].lng),
zoom: 8,
mapTypeId: google.maps.MapTypeId.ROADMAP
};
var infoWindow = new google.maps.InfoWindow();
var map = new google.maps.Map(document.getElementById("map"), mapOptions);
for (i = 0; i < markers.length; i++) {
var data = markers[i]
var myLatlng = new google.maps.LatLng(data.lat, data.lng);
var marker = new google.maps.Marker({
position: myLatlng,
map: map,
title: data.title,
icon: image
});
(function (marker, data) {
google.maps.event.addListener(marker, "click", function (e) {
infoWindow.setContent(data.title);
infoWindow.open(map, marker);
});
})(marker, data);
}
}
Don't set the title property of the marker (that is what sets the tooltip).
var marker = new google.maps.Marker({
position: myLatlng,
map: map,
title: data.title, // <<<<<<<<<<<<<<<<<< REMOVE THIS
icon: image
});
I'm working on a school project where I´m using google maps to make a travel planer. the idea is that the user can drop markers on the map and fill them with text. so far I've managed to load google maps and I can drop markers but I can´t get the infowindows to work. When I looked at googles API it said to make a marker, make an infowindow and the use an addlistener to open the infowindow when the marker is clicked, all the different tutorials also say the same thing but I can´t get it to work. so far my code looks like this:
function initialize()
{
var mapOptions =
{
zoom: 2,
center: {lat: 0.0, lng: 0.0}
};
var map = new google.maps.Map(document.getElementById('map-canvas'),
mapOptions);
google.maps.event.addListener(map, 'rightclick', function(event) {
var marker = new google.maps.Marker({
position: event.latLng, //map Coordinates where user right clicked
map: map,
draggable:true, //set marker draggable
animation: google.maps.Animation.DROP
});
});
//Content structure of info Window for the Markers
var contentString = $('<div class="marker-info-win">'+
'<div class="marker-inner-win"><span class="info-content">'+
'<h1 class="marker-heading">New Marker</h1>'+
'This is a new marker infoWindow'+
'</span>'+
'</div></div>');
//Create an infoWindow
var infowindow = new google.maps.InfoWindow();
//set the content of infoWindow
infowindow.setContent(contentString);
//add click event listener to marker which will open infoWindow
google.maps.event.addListener(marker, 'click', function() {
infowindow.open(map,marker); // click on marker opens info window
});
}
can anyone tell me what i´m doing wrong? the entire code can be seen here: http://pastebin.com/R1bg0gi4
as commented by duncan, you must move the code that set's the click-listener of the marker into the rightclick-handler of the map, after the creation of the marker
the content for an Infowindow may be a string or a element-node, you supply none of them(a jQuery-object)
function initialize()
{
var mapOptions =
{
zoom: 2,
center: {lat: 0.0, lng: 0.0}
};
var map = new google.maps.Map(document.getElementById('map-canvas'),
mapOptions),
//Create an infoWindow
infowindow = new google.maps.InfoWindow();
google.maps.event.addListener(map, 'rightclick', function(event) {
var marker = new google.maps.Marker({
position: event.latLng,
map: map,
draggable:true, //set marker draggable
animation: google.maps.Animation.DROP
});
//Content structure of info Window for the Markers
var contentString = $('<div class="marker-info-win">'+
'<div class="marker-inner-win"><span class="info-content">'+
'<h1 class="marker-heading">New Marker</h1>'+
'This is a new marker infoWindow'+
'</span>'+
'</div></div>')[0];
//set the content of infoWindow
infowindow.setContent(contentString);
//add click event listener to marker which will open infoWindow
google.maps.event.addListener(marker, 'click', function() {
infowindow.open(map,marker);
});
});
}
google.maps.event.addDomListener(window, 'load', initialize);
This code takes a big list of (400) markers and adds it to the map, at the end, it shows the whole map including all the markers.
What I have tried to achieve is: when geolocation is available, center the map on location, zoom to level 16 and refresh the map to show it, otherwise, let the whole big map show... I have read and tried many different things, but the geolocation must happen before the map is created. I want to make it happen after. I show you my code here and the temporary link to the working site: http://studioteknik.co/brasseursillimites.com/detaillants/
function initialize()
{
var map = new google.maps.Map(document.getElementById('map-canvas'));
var bounds = new google.maps.LatLngBounds();
var infowindow = new google.maps.InfoWindow();
for (var i in locations) {
var p = locations[i];
var latlng = new google.maps.LatLng(p[1], p[2]);
bounds.extend(latlng);
var marker = new google.maps.Marker({
position: latlng,
map: map,
title: p[0]
});
google.maps.event.addListener(marker, 'click', function() {
infowindow.setContent(this.title);
infowindow.open(map, this);
});
}
map.fitBounds(bounds);
}
google.maps.event.addDomListener(window, 'load', initialize);
Here is a simple example of geolocation. Just add the geolocation code anywhere after the map object is created. If the user doesn't allow geolocation, the map will be shown at the default location / zoom level.
function initialize() {
var mapOptions = {
zoom: 10,
mapTypeId: google.maps.MapTypeId.ROADMAP,
center: new google.maps.LatLng(0,0)
};
var map = new google.maps.Map(document.getElementById("map-canvas"), mapOptions);
// Geolocation code
if (navigator.geolocation) {
navigator.geolocation.getCurrentPosition(function (position) {
map.panTo(new google.maps.LatLng(position.coords.latitude, position.coords.longitude));
map.setZoom(16);
});
}
}
initialize();
JSFiddle demo
Im building a web app in order to show a marker in the users current location using geolocation and GPS. Here is my code
var marker;
$(window).load(function() {
myOptions = { zoom: 20, mapTypeId: google.maps.MapTypeId.ROADMAP };
map = new google.maps.Map(document.getElementById("map_canvas"), myOptions);
var watchId = navigator.geolocation.watchPosition(centerMap);
});
function centerMap(location)
{
var myLatlng = new google.maps.LatLng(location.coords.latitude,location.coords.longitude);
map.setCenter(myLatlng);
map.setZoom(15);
$("#lat").text("Latitude : " + location.coords.latitude);
$("#lon").text("Longitude : " + location.coords.longitude);
//show current location on map
marker = new google.maps.Marker({
position: myLatlng,
map: map,
zIndex:1
});
navigator.geolocation.clearWatch(watchId);
}
This code works but it keep adding markers as the user changes location.
How i can show only one marker in the current users location?
Instead of generating a new marker each time centerMap is called simply update its position with marker.setPosition(myLatlng).
If I already displayed a google map marker.
How could I change its icon using Jquery?
Thanks in advance.
Actually Google Maps API has supported method to setImage for marker. I get this code from Google Code PlayGround (http://code.google.com/apis/ajax/playground/#custom_marker_image_v3)
function initialize() {
var mapDiv = document.getElementById('map-canvas');
var latLng = new google.maps.LatLng(37.4419, -122.1419);
var map = new google.maps.Map(mapDiv, {
center: latLng,
zoom: 13,
mapTypeId: google.maps.MapTypeId.ROADMAP
});
var image = 'http://code.google.com/apis/maps/documentation/javascript/examples/images/beachflag.png';
var myLatLng = new google.maps.LatLng(-33.890542, 151.274856);
var beachMarker = new google.maps.Marker({
position: latLng,
map: map,
icon: image
});
}