i was trying to use google map api v3 and pop up some markers on the map. un fortunately it doesnt show up on my map. i use array push to store marker with latitude and longitude parameter.
here is my code
<script type="text/javascript">
var trackerMarkerArray = [];
function initialize() {
var myLatlng = new google.maps.LatLng(-25.363882,131.044922);
var myLatlng2 = new google.maps.LatLng(-25.363800,131.044900);
var mapOptions = {
center: myLatlng,
zoom: 8
};
try {
var map = new google.maps.Map(document.getElementById("map-canvas"),
mapOptions);
var marker = new google.maps.Marker({
position: myLatlng
});
var marker2 = new google.maps.Marker({
position: myLatlng2
});
trackerMarkerArray.push(marker);
trackerMarkerArray.push(marker2);
for (var i = 0; i<trackerMarkerArray.lenght; i++){
trackerMarkerArray[i].setMap(map);
console.log("value" + trackerMarkerArray[i]);
}
} catch (err){
alert(err);
}
}
google.maps.event.addDomListener(window, 'load', initialize);
</script>
for (var i = 0; i<trackerMarkerArray.lenght; i++)
lenght must be "length"
also, when the map is not showing, try to see browser's debug console for any error.
Related
I am trying to clustering some location on google map. I have tryied to merge the code from from this question and the code from markercluster examples. But can't fix it. This is my code:
<div id="map_canvas" style="width: 98%; height: 500px;border:2px solid #ccc;float:left"></div>
<script type="text/javascript" src="http://maps.google.com/maps/api/js?sensor=false"></script> <script type="text/javascript" src="http://google-maps-utility-library-v3.googlecode.com/svn/trunk/markerclusterer/src/markerclusterer.js"></script>
<script>
function initialize() {
var elevator;
var myOptions = {
zoom: 2,
center: new google.maps.LatLng(0, 0),
mapTypeId: 'terrain'
};
var map = new google.maps.Map($('#map_canvas')[0], myOptions);
var addresses = ['Argentina, Buenos Aires', 'Argentina, Cordoba, Cordoba Capital','Argentina, Cordoba, Rio Tercero'];
var markers = [];
for (var x = 0; x < addresses.length; x++) {
$.getJSON('http://maps.googleapis.com/maps/api/geocode/json?address='+addresses[x]+'&sensor=false', null, function (data) {
var p = data.results[0].geometry.location
var latlng = new google.maps.LatLng(p.lat, p.lng);
var marker = new google.maps.Marker({position: latlng });
markers.push(marker);
});
}
var markerCluster = new MarkerClusterer(map, markers);
}
google.maps.event.addDomListener(window, 'load', initialize);
</script>
It is not a problem of jquery, because the example works very well if I don't try to use markerCluster. So I am doing something wrong with array passing.
$.getJSON runs asynchronously, markers will not be populated yet when you use it as argument for MarkerClusterer.
Use
markerCluster.addMarker(marker);
instead of
markers.push(marker);
So this set of code is pulling in locations (Latitude, Longitude, and Address) from a C# backend.
the backend code pulls data from a SQL database and inputs it into the ASP.Net DataField columns.
It was an enhancement to a prebuilt application to include Google Maps.
The locations pull just fine and stepping through it shows the latitude and longitude correctly.
The issue I'm having is that only one marker shows up which looks to be the last one.
Its as if each location isn't actually adding a new marker, but overwriting the current one which leaves the last location as the marker on the map.
What do I need to change to get each location to show up as a new marker?
<script type="text/javascript">
function locate() {
var inputList = GridView1.getElementsByTagName("td");
var rows = GridView1.getElementsByTagName("tr");
// var markers = inputList[0].innerHTML;
for (i = 1; i < rows.length; i++) {
var lat = rows[i].cells[2].innerHTML;
var lng = rows[i].cells[3].innerHTML;
var addr = rows[i].cells[1].innerHTML;
var mapOptions = {
center: new google.maps.LatLng(rows[1].cells[2].innerHTML, rows[1].cells[3].innerHTML),
zoom: 12,
mapTypeId: google.maps.MapTypeId.ROADMAP
};
var markers = [];
var infoWindow = new google.maps.InfoWindow();
var map = new google.maps.Map(document.getElementById("dvMap"), mapOptions);
var data = rows[i]
var myLatlng = new google.maps.LatLng(data.cells[2].innerHTML, data.cells[3].innerHTML);
var marker = new google.maps.Marker({
position: myLatlng,
map: map
});
markers.push(marker);
(function (marker, data) {
google.maps.event.addListener(marker, "click", function (e) {
infoWindow.setContent(data.cells[1].innerHTML);
infoWindow.open(map, marker);
});
})(marker, data);
}
}
</script>
<div id="dvMap" style="width: 500px; height: 500px">
</div>
</form>
</body>
</html>
You're creating the map and the marker within the same loop. i.e. you're creating a map with a single marker on it, rows times. You want to create the map outside of your loop. Something like this:
function locate() {
var rows = GridView1.getElementsByTagName("tr");
var mapOptions = {
center: new google.maps.LatLng(rows[1].cells[2].innerHTML, rows[1].cells[3].innerHTML),
zoom: 12,
mapTypeId: google.maps.MapTypeId.ROADMAP
};
var infoWindow = new google.maps.InfoWindow();
var map = new google.maps.Map(document.getElementById("dvMap"), mapOptions);
for (i = 1; i < rows.length; i++) {
var data = rows[i];
var myLatlng = new google.maps.LatLng(data.cells[2].innerHTML, data.cells[3].innerHTML);
var marker = new google.maps.Marker({
position: myLatlng,
map: map
});
(function (marker, data) {
google.maps.event.addListener(marker, "click", function (e) {
infoWindow.setContent(data.cells[1].innerHTML);
infoWindow.open(map, marker);
});
})(marker, data);
}
}
I'm new to google map api v3. I already establish a decent google map with 2 marker but when I use google.maps.latlngBounds, it return me an error
invalidValueError : setCenter : not a LatLng or LatLngLiteral Object.
How can I fix this?
I just want to centre my map around these markers.
function initialize() {
var myLatlng = new google.maps.LatLng(-25.363882,131.044922);
var myLatlng2 = new google.maps.LatLng(-25.573688, 132.567212);
var mapOptions = {
center: myLatlng,
zoom: 8,
mapTypeId: google.maps.MapTypeId.ROADMAP
};
try {
var map = new google.maps.Map(document.getElementById("map-canvas"),
mapOptions);
var marker = new google.maps.Marker({
position: myLatlng
});
var marker2 = new google.maps.Marker({
position: myLatlng2
});
trackerMarkerArray.push(marker);
trackerMarkerArray.push(marker2);
var latlngbound = new google.maps.LatLngBounds ();
for (var i = 0; i<trackerMarkerArray.length; i++){
trackerMarkerArray[i].setMap(map);
latlngbound.extend(trackerMarkerArray[i].position);
}
//render new map and center around group of marker
map.setCenter(latlngbound);
map.fitBounds(latlngbound);
} catch (err){
alert(err);
}
}
google.maps.event.addDomListener(window, 'load', initialize);
To "fit" the map to a set of markers added to a google.maps.LatLngBounds object use map.fitBounds(bounds), not map.setCenter().
google.maps.Map documentation
map.setCenter(latlngbound);
map.setCenter takes a LatLng as a parameter, you're passing a LatLngBounds, I think you want to do it like this:
map.setCenter(latlngbound.getCenter());
I have this script for links from google map markers:
<script type="text/javascript">
var locations = [['Test 1','55','13','url1'],['Test 2','45','17','url2']];
function initialize()
{
var myOptions = {
center: new google.maps.LatLng(50,15),
zoom: 3,
mapTypeId: google.maps.MapTypeId.SATELLITE};
var map = new google.maps.Map(document.getElementById("map"),myOptions);
setMarkers(map,locations)
}
function setMarkers(map,locations)
{
var marker, i
for(i = 0; i < locations.length; i++)
{
var arr = i
var name = locations[i][0]
var lat = locations[i][1]
var long = locations[i][2]
var adress = locations[i][3]
latlngset = new google.maps.LatLng(lat, long);
var marker = new google.maps.Marker({
map: map,
title: name,
url: adress,
position: latlngset
});
google.maps.event.addListener(marker, 'click', function() {window.location.href = this.url;});
}
}
google.maps.event.addDomListener(window, 'load', initialize);
</script>
...and, I need generate infowindows from markers instead of links, do you have any simple idea?
Google map clickable infowindows from markers
I found this great tutorial it works perfectly.
http://lab.abhinayrathore.com/ipmapper/
Here is the javascript code which returnred lat&lon values from an IP address:
http://pastebin.com/1gE91nuh
So there are a lot of markers in the same place and I would like to make groups something like this:
http://google-maps-utility-library-v3.googlecode.com/svn/tags/markerclustererplus/2.0.9/examples/simple_example.html
Example:
http://google-maps-utility-library-v3.googlecode.com/svn/tags/markerclustererplus/2.0.9/docs/examples.html
But somebody could help me how to make groups in the original code? ( original code: http://pastebin.com/1gE91nuh )
Thanks!
This is the code that creates the marker clusters. When markers are created, they are pushed into an array. That array is passed into a new MarkerClusterer object.
function initialize() {
var center = new google.maps.LatLng(37.4419, -122.1419);
var map = new google.maps.Map(document.getElementById('map'), {
zoom: 3,
center: center,
mapTypeId: google.maps.MapTypeId.ROADMAP
});
var markers = [];
for (var i = 0; i < 100; i++) {
var dataPhoto = data.photos[i];
var latLng = new google.maps.LatLng(dataPhoto.latitude,
dataPhoto.longitude);
var marker = new google.maps.Marker({
position: latLng
});
markers.push(marker);
}
var markerCluster = new MarkerClusterer(map, markers);
}
google.maps.event.addDomListener(window, 'load', initialize);