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i wanna developing window contains map and allow user to mark his location and get longitude and latitude based on the marked location
any one has a suggestion ?
you can use google map v3 for this purpose..
Try this code, it creates a marker where the user clicks on the map
<!DOCTYPE html>
<html>
<head>
<title>Google Maps</title>
<meta name="viewport" content="initial-scale=1.0, user-scalable=no">
<meta charset="utf-8">
<style>
html, body, #map-canvas {
margin: 0;
padding: 0;
height: 100%;
}
</style>
<script src="https://maps.googleapis.com/maps/api/js?v=3.exp&sensor=false"></script>
<script>
function initialize() {
var mapOptions = {
zoom: 4,
center: new google.maps.LatLng(-25.363882, 131.044922),
mapTypeId: google.maps.MapTypeId.ROADMAP
};
var map = new google.maps.Map(document.getElementById('map-canvas'),
mapOptions);
google.maps.event.addListener(map, 'click', function (e) {
placeMarker(e.latLng, map);
});
}
function placeMarker(position, map) {
var marker = new google.maps.Marker({
position: position,
map: map
});
map.panTo(position);
}
google.maps.event.addDomListener(window, 'load', initialize);
</script>
</head>
<body>
<div id="map-canvas"></div>
</body>
</html>
you will be requried to use maps click event to get lat/lag.
check below code for same.
GEvent.addListener(map, "click", function(overlay, latLng)
{
// display the lat/lng in your form's lat/lng fields
document.getElementById("latFld").value = latLng.lat();
document.getElementById("lngFld").value = latLng.lng();
//code for adding marker
//post/ajax call to save location in Database
});
Related
This question already has answers here:
Google Maps JS API v3 - Simple Multiple Marker Example
(15 answers)
Closed 4 years ago.
I am trying to use Google maps API for a website and I can't seem to get multiple locations to populate like Google has it in their example.
Could anyone please let me know what I need to add to get 11 markers to show up that will give a description of what I want.
I can see that Google has multiple locations giving a quick description of what they are.
PS: I already have a key I just need to know how to include "X" number of markers with a description attached.
Attached is the link to googles example:
Google Maps API
Here is the code:
<!DOCTYPE html>
<html>
<head>
<title>Place searches</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%;
}
/* Optional: Makes the sample page fill the window. */
html, body {
height: 100%;
margin: 0;
padding: 0;
}
</style>
<script>
// This example requires the Places library. Include the libraries=places
// parameter when you first load the API. For example:
// <script src="https://maps.googleapis.com/maps/api/js?key=YOUR_API_KEY&libraries=places">
var map;
var infowindow;
function initMap() {
var pyrmont = {lat: -33.867, lng: 151.195};
map = new google.maps.Map(document.getElementById('map'), {
center: pyrmont,
zoom: 15
});
infowindow = new google.maps.InfoWindow();
var service = new google.maps.places.PlacesService(map);
service.nearbySearch({
location: pyrmont,
radius: 500,
type: ['store']
}, 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);
});
}
</script>
</head>
<body>
<div id="map"></div>
<script src="https://maps.googleapis.com/maps/api/js?key=YOUR_API_KEY&libraries=places&callback=initMap" async defer></script>
</body>
</html>
You need to try this:
<!DOCTYPE html>
<html>
<head>
<meta name="viewport" content="initial-scale=1.0, user-scalable=no">
<meta charset="utf-8">
<title>Simple markers</title>
<style>
/* Always set the map height explicitly to define the size of the div
* element that contains the map. */
#map {
height: 100%;
}
/* Optional: Makes the sample page fill the window. */
html,
body {
height: 100%;
margin: 0;
padding: 0;
}
</style>
</head>
<body>
<div id="map"></div>
<script>
function initMap() {
var myLatLng = {
lat: -25.363,
lng: 131.044
};
var map = new google.maps.Map(document.getElementById('map'), {
zoom: 4,
center: myLatLng
});
var marker = new google.maps.Marker({
position: myLatLng,
map: map,
title: 'Hello World!'
});
}
</script>
<script async defer src="https://maps.googleapis.com/maps/api/js?key=YOUR_API_KEY&callback=initMap">
</script>
I'm trying to toggle layers of an existing map created on maps.google.com with google V3 API.
To toggle (display / hide) the layer I'm using .setMap function with map/null as argument.
My problem is that I've not found a way to get the list of the existing layers. So I've hardcoded the values in mapLayerNames, but I would have prefer to get them from 'map' variable. Which API am I missing from the doc?
here comes my code: lid are the layer Ids I'm looking for in the url...
<!DOCTYPE html>
<html>
<head>
<meta name="viewport" content="initial-scale=1.0, user-scalable=no">
<meta charset="utf-8">
<title>KML Layers</title>
<style>
html, body, #map-canvas {
height: 100%;
margin: 0px;
padding: 0px
}
</style>
<script src="https://maps.googleapis.com/maps/api/js?v=3.exp&signed_in=true"></script>
<script>
var mapLayerNames = [
"http://www.google.com/maps/d/u/1/kml?mid=z_wfVyI764I4.kPvsE6js2GAg&lid=z_wfVyI764I4.kIQKW-gOFhmU",
"http://www.google.com/maps/d/u/1/kml?mid=z_wfVyI764I4.kPvsE6js2GAg&lid=z_wfVyI764I4.k2u4vYNOkUIA",
"http://www.google.com/maps/d/u/1/kml?mid=z_wfVyI764I4.kPvsE6js2GAg&lid=z_wfVyI764I4.kcPBYmgvyhbI"
];
var map;
var ctaLayer = [];
function initialize() {
var paris = new google.maps.LatLng(43.5742118,1.4538968);
var mapOptions = {
zoom: 11,
center: paris
}
map = new google.maps.Map(document.getElementById('map-canvas'), mapOptions);
for (var i=0; i<mapLayerNames.length; i++) {
ctaLayer = new google.maps.KmlLayer({
url: mapLayerNames[i]
});
ctaLayer.setMap(map);
}
}
google.maps.event.addDomListener(window, 'load', initialize);
</script>
</head>
<body>
<div id="map-canvas"></div>
</body>
</html>
I just can't understand why this simple example of MarkerManager shows no marker. I am opening a map at a center point and then adding one marker to the marker manager. When the map initializes there is no marker.
What am I missing?
Thanks, Rick
<!DOCTYPE html>
<html lang="en" xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta charset="utf-8" />
<title></title>
<script type="text/javascript" src="http://maps.googleapis.com/maps/api/js?sensor=false"></script>
<script type="text/javascript" src="http://google-maps-utility-library-v3.googlecode.com/svn/trunk/markermanager/src/markermanager.js"></script>
<script type="text/javascript">
var map;
var mgr;
function initialize() {
center = new google.maps.LatLng(40.1352891590710, -105.1035852680550)
var myOptions = {
zoom: 18,
center: center,
mapTypeId: google.maps.MapTypeId.ROADMAP
};
map = new google.maps.Map(document.getElementById("map_canvas"), myOptions);
mgr = new MarkerManager(map);
google.maps.event.addListener(mgr, 'loaded', function () {
var marker = new google.maps.Marker({
position: center,
title: 'marker'
});
mgr.addMarker(marker);
mgr.refresh();
mgr.show();
alert(mgr.getMarkerCount(18));
});
}
google.maps.event.addDomListener(window, 'load', initialize);
</script>
</head>
<body>
<div id="map_canvas" style="height: 800px;"></div>
</body>
</html>
The documentation tells me that addMarker takes two arguments:
addMarker(marker:Marker, minZoom:Number, opt_maxZoom:Number) | None | Add a single marker to the map.
change the call in your code to:
mgr.addMarker(marker, 0);
I am a very new person to the google maps and javascript. What i am trying to achieve is that when i load a google map the user should be able to add a marker/pin on any location he wishes via click. I am able to do this now what i am trying to add is that if a user clicks the pin gets added there should also be a description window which user could add on that pin. Say when i click on a location to add a pin i should also be able to insert some description like "my home" etc.Below is my code so far. Thanks anyways.
<!DOCTYPE html>
<html>
<head>
<title>Accessing arguments in UI events</title>
<meta name="viewport" content="initial-scale=1.0, user-scalable=no">
<meta charset="utf-8">
<style>
html, body, #map-canvas {
height: 100%;
margin: 0px;
padding: 0px
}
</style>
<script src="https://maps.googleapis.com/maps/api/js?v=3.exp&sensor=false"></script>
<script>
function initialize() {
var mapOptions = {
zoom: 4,
center: new google.maps.LatLng(-25.363882,131.044922)
};
var map = new google.maps.Map(document.getElementById('map-canvas'),
mapOptions);
google.maps.event.addListener(map, 'click', function(e) {
placeMarker(e.latLng, map);
});
}
function placeMarker(position, map) {
var marker = new google.maps.Marker({
position: position,
map: map
});
map.panTo(position);
}
google.maps.event.addDomListener(window, 'load', initialize);
</script>
</head>
<body>
<div id="map-canvas"></div>
</body>
</html>
You need to add on click listener to your marker to open an info window when you click on your marker.
Create your infowindow after where you created your marker:
var infowindow = new google.maps.InfoWindow({
content : 'Test Content'
});
and after that, add the listener:
google.maps.event.addListener( marker, "click", function() {
infowindow.open( map, marker );
});
I'm experimenting with QtWebkit and Google Maps. The problem I've run into is calling C++ slots from the QWebView.
The page displayed in the QWebView is a modified Google Maps example:
<!DOCTYPE html>
<html>
<head>
<title>Google Maps JavaScript API v3 Example: Event Simple</title>
<meta name="viewport" content="initial-scale=1.0, user-scalable=no">
<meta charset="UTF-8">
<script type="text/javascript" src="http://maps.googleapis.com/maps/api/js?sensor=true"></script>
<style type="text/css">
html { height: 100% }
body { height: 100%; margin: 0; padding: 0 }
#map_canvas { height: 100% }
</style>
<script type="text/javascript">
function initialize() {
var myOptions = {
zoom: 4,
center: new google.maps.LatLng(-25.363882, 131.044922),
mapTypeId: google.maps.MapTypeId.ROADMAP
};
var map = new google.maps.Map(document.getElementById('map_canvas'),
myOptions);
var marker = new google.maps.Marker({
position: map.getCenter(),
map: map,
title: 'test'
});
google.maps.event.addListener(marker, 'click', function() {
//if (map.getZoom() == 8) {
// map.setZoom(4);
// } else {
// map.setZoom(8);
// }
window.maiWi.showList();
});
}
google.maps.event.addDomListener(window, 'load', initialize);
</script>
</head>
<body>
<div id="map_canvas" style="width:100%; height:100%"></div>
</body>
</html>
maiWi is the QMainWindow object which contains the slot showList() I want to call and which has been added to the Javascript window object.
If I add another element to the web page with the attribute onclick="maiWi.showList()", then the slot gets called and everything is well. However, I want to call the slot when the Maps marker gets clicked. The marker, however doesn't seem to respond to click events in QWebView. Even the commented-out example code doesn't work.
In Chrome, the event listener gets called and does what it's supposed to, but in QWebView nothing happens.
It turns out that I should turn off optimized rendering for map markers. When adding optimized:false to the marker declaration, then things start to work:
var marker = new google.maps.Marker({
position: map.getCenter(),
map: map,
optimized: false,
title: 'test'
});