How to link a button to a google map marker? - google-maps

I'm trying to create my own map using google map.
I want to create a list showing all existing markers on the map. When user clicks on one button/link from the list, the corresponding marker will be centered and its infoWindow will be displayed, i.e. the same effects as the user clicks on the marker.
I have tried a number of solutions, but I could get none of them working. Can anyone please offer me a simple solution for this? Thanks in advance!
My existing code is as follows,
google.maps.event.addDomListener(window, 'load', function() {
var map = new google.maps.Map(document.getElementById('map'), {
center: new google.maps.LatLng(19.642588,151.171875),
mapTypeId: google.maps.MapTypeId.ROADMAP,
mapTypeControl: false
});
var infoWindow = new google.maps.InfoWindow;
var onMarkerClick1 = function() {
var marker = this;
infoWindow.setContent('content of infowindow');
infoWindow.open(map, marker);
};
var marker1 = new google.maps.Marker({
map: map,
position: new google.maps.LatLng(19.642588,151.171875),
});
google.maps.event.addListener(marker1, 'click', onMarkerClick1);

this won't center the map on it, but will move so the whole balloon is visible
http://econym.org.uk/gmap/example_map2.htm
as simple as i can get it. yes, please use GMarker etc.
don't forget this in the header <script src="http://maps.google.com/maps?...
you'll need html that includes
<div id="map" style="width: 550px; height: 450px"></div>
<div id="side_bar">Marker One<br /></div>
and then javascript
var map = new GMap2(document.getElementById("map"));
map.setCenter(new GLatLng(19.642588, 151.171875), 8);
var point = new GLatLng(19.642588, 151.171875);
var marker = new GMarker(point);
GEvent.addListener(marker, "click", function () {
marker.openInfoWindowHtml("this marker has been clicked");
});
function myclick(i) {
GEvent.trigger(marker, "click");
}
map.addOverlay(marker);

Related

Google Map not loaded in second time in bootstrap modal

This script is creating a problem that when i used to load google map in bootstrap modal.
First time map is loaded but with second time map is not loaded fully.
<script>
var map = '';
function showmap(){
if(!map){
var mapOptions = {
zoom: 4,
center: new google.maps.LatLng(23.6459, 81.9217),
mapTypeId: google.maps.MapTypeId.ROADMAP
};
var map = new google.maps.Map(document.getElementById('map_canvas'), mapOptions);
var marker = new google.maps.Marker({
position: map.getCenter(),
map: map
});
google.maps.event.addListener(map, "click", function(){
document.getElementById("latitude").value = map.getCenter().lat();
document.getElementById("longitude").value = map.getCenter().lng();
marker.setPosition(map.getCenter());
//document.getElementById("zoom").value = map.getZoom();
});
google.maps.event.addListener(map, "center_changed", function(){
document.getElementById("latitude").value = map.getCenter().lat();
document.getElementById("longitude").value = map.getCenter().lng();
marker.setPosition(map.getCenter());
//document.getElementById("zoom").value = map.getZoom();
});
}
}
</script>
<script>
var map = '';
function showmap(){
if(!map){
var mapOptions = {
zoom: 4,
center: new google.maps.LatLng(23.6459, 81.9217),
mapTypeId: google.maps.MapTypeId.ROADMAP
};
map = new google.maps.Map(document.getElementById('map_canvas'), mapOptions);
^^^^ Remove var from here and it works fine
var marker = new google.maps.Marker({
position: map.getCenter(),
map: map
});
google.maps.event.addListener(map, "click", function(){
document.getElementById("latitude").value = map.getCenter().lat();
document.getElementById("longitude").value = map.getCenter().lng();
marker.setPosition(map.getCenter());
});
}
}
</script>
in function when assigning map variable again in modal is creating problem so to remove conflict just remove var map when assingin it to google.maps
This is meant to be a comment but I am not allowed to add comments at this time.
I also experience the same in an MVC app. Modal content (resource title and map) is loaded as partial view from a controller action. First map loads nicely but next map(s) are clipped and only top left part shows. Using Bootstrap 3.
It is worth mentioning that if you refresh the page, the map loads well but that's not practical.

Google maps v3 open infowindow on load

I using this technique: http://www.geocodezip.com/v3_MW_example_map2.html
I want to have the first info window open when the map loads.
I also want to be able to center the map when you click a location link.
Can anyone help?
JS:
// this variable will collect the html which will eventually be placed in the side_bar
var side_bar_html = "";
// arrays to hold copies of the markers and html used by the side_bar
// because the function closure trick doesnt work there
var gmarkers = [];
var map = null;
function initialize() {
// create the map
var myOptions = {
zoom: 12,
center: new google.maps.LatLng(50.822096, -0.375736),
mapTypeControl: true,
mapTypeControlOptions: {style: google.maps.MapTypeControlStyle.DROPDOWN_MENU},
navigationControl: true,
mapTypeId: google.maps.MapTypeId.ROADMAP,
scrollwheel:false
}
map = new google.maps.Map(document.getElementById("map_canvas"), myOptions);
google.maps.event.addListener(map, 'click', function() {
infowindow.close();
});
// Add markers to the map
// Set up three markers with info windows
// add the points
var point = new google.maps.LatLng(50.810438, -0.374925);
var center = new google.maps.LatLng(50.810438, -0.374925);
var marker = createMarker(point,"Worthing","<p><b>Worthing</b><br>1-13 Buckingham Road,<br>Worthing,<br>West Sussex,<br>BN11 1TH</p>")
var point = new google.maps.LatLng(51.497421,-0.141604);
var center = new google.maps.LatLng(51.497421,-0.141604);
var marker = createMarker(point,"London","<p><b>London</b><br>Portland House,<br>Bressenden Place,<br>London,<br>SW1E 5RS</p>")
var point = new google.maps.LatLng(-33.867487,151.20699);
var center = new google.maps.LatLng(-33.867487,151.20699);
var marker = createMarker(point,"Sydney","<p><b>Sydney</b><br>Level 1, Cosco House,<br>95-101 Sussex Street,<br>Sydney NSW<br>Australia 2000</p>")
// put the assembled side_bar_html contents into the side_bar div
document.getElementById("side_bar").innerHTML = side_bar_html;
$('#side_bar li:first-child').addClass("active");
$('#side_bar li').click(function(){
$('#side_bar li').removeClass("active");
$(this).addClass("active");
});
}
var infowindow = new google.maps.InfoWindow(
{
size: new google.maps.Size(150,50)
});
// This function picks up the click and opens the corresponding info window
function myclick(i) {
google.maps.event.trigger(gmarkers[i], "click");
}
// A function to create the marker and set up the event window function
function createMarker(latlng, name, html) {
var contentString = html;
var iconBase = '../Themes/FreshEgg/assets/img/';
var marker = new google.maps.Marker({
position: latlng,
map: map,
zIndex: Math.round(latlng.lat()*-100000)<<5,
icon: iconBase + 'map_marker_24x46.png',
animation: google.maps.Animation.DROP
});
google.maps.event.addListener(marker, 'click', function() {
infowindow.setContent(contentString);
infowindow.open(map,marker);
});
infowindow.setContent(contentString);
infowindow.open(map,marker);
// save the info we need to use later for the side_bar
gmarkers.push(marker);
// add a line to the side_bar html
side_bar_html += '<li><a href="javascript:myclick(' + (gmarkers.length-1) + ')">' + name + '<\/a></li>';
}
google.maps.event.addDomListener(window, 'load', initialize);
HTML:
<ul class="list-inline" id="side_bar"></ul>
<div id="map_canvas"></div>
Add a 4th parameter to your createMarker() function for the default state of markers - createMarker(latlng, name, html, show) - where show will be a boolean variable: true to open on load, false to leave it closed. Then when you call createMarker() in your initialize() method specify true for the marker you want open on load.
Then in createMarker() add a condition that handles this for you - something like:
if (show) {
google.maps.event.trigger(marker, "click");
/*if you're going to take this approach, make sure this is triggered after
*you specify your listener
*alternately, you can also setContent() and open() your infoWindow here
*/
}
To have the map pan to the center when you click on the marker, you first need to disable the auto panning of the map when an infoWindow is open. This can be done where you set the options for your infoWindow:
var infowindow = new google.maps.InfoWindow(
{
size: new google.maps.Size(150,50),
disableAutoPan : true
});
Then, in your listener for the click event on the marker add the function to panTo(LatLng) the position of the marker on your map.
google.maps.event.addListener(marker, 'click', function() {
infowindow.setContent(contentString);
infowindow.open(map, marker);
map.panTo(marker.getPosition());
});

change the place of the marker with the click

i am working on google maps, what i want to do is to click on the map it add a marker to the map its working fine but the problem is that i need to move the same marker to a new place if i click some where else instead of new marker. and also when i click on any point it give me the address of that place in a text field
here is my code
<script type="text/javascript">
var map;
var markersArray = [];
function initialize() {
var haightAshbury = new google.maps.LatLng(37.7699298, -122.4469157);
var mapOptions = {
zoom: 7,
center: haightAshbury,
mapTypeId: google.maps.MapTypeId.ROADMAP
};
map = new google.maps.Map(document.getElementById("map_canvas"), mapOptions);
google.maps.event.addListenerOnce(map, 'click', function(event) {
addMarker(event.latLng);
});
}
function addMarker(location) {
marker = new google.maps.Marker({
position: location,
map: map
});
markersArray.push(marker);
}
// Removes the overlays from the map, but keeps them in the array
function clearOverlays() {
if (markersArray) {
for (i in markersArray) {
markersArray[i].setMap(null);
}
}
}
}
You can call clearOverlays anytime you create a new marker.this way you hide the previous marker and only the new is shown.
another way is to have a var marker just as you have a var map. you can edit the markers position in addMarker.
as far as geocoding is concerned take a look at this

Google Maps API canot display content of infowindow

I have a question that may sound silly. I wrote javascript code to integrate APEX. The purpose of this part is to show Google map according to address and have infowindow. The infowindow will show name as content, and it is a link which leads to the detail report of that guy. Problem is: infowindow works well for most of names in database, but shows no content (the link) with certain name. I do not find any special for these names, such as "Robert Allan Lockett". Here I attach code as follows:
<script type="text/javascript" src="http://maps.googleapis.com/maps/api/js?sensor=false"> </script>
<script type="text/javascript">
function initialize() {
var myOptions = { zoom: 18, mapTypeId: google.maps.MapTypeId.ROADMAP};
var map = new google.maps.Map(document.getElementById("map"), myOptions);
var markerBounds = new google.maps.LatLngBounds();
var point=new google.maps.LatLng(&P3006_TF_GEOCODING.);
markerBounds.extend(point);
map.fitBounds(markerBounds);
var listener = google.maps.event.addListener(map, "idle", function() {
map.setZoom(map.getZoom()-4);
google.maps.event.removeListener(listener);
});
var marker;
marker = new google.maps.Marker({ position: new google.maps.LatLng(&P3006_TF_GEOCODING.), map: map });
var infowindow = new google.maps.InfoWindow({ content: "&P3006_H_OFFENDER_NAME."});
var current_parameter ="&APP_ID.:216:&SESSION.::NO::P216_DETAIL:"+"&P3006_H_OFFENDER_ID.";
var my_URL="http://lsg-solutions.com:9704/apex/f?p="+encodeURIComponent(current_parameter);
infowindow.setContent('<a href='+my_URL+'>&P3006_H_OFFENDER_NAME.</a>');
google.maps.event.addListener(marker, 'click', function() { infowindow.open(map,marker);});
}
</script>

Google Maps API InfoWindow not Displaying content

My Code looks like this:
var map = /*some google map - defined earlier in the code*/;
var geocoder = new google.maps.Geocoder();
var address = 'Some Address, Some Street, Some Place';
geocoder.geocode({'address':address},function(results,status){
if (status == google.maps.GeocoderStatus.OK) {
map.setCenter(results[0].geometry.location);
var infobox = new google.maps.InfoWindow({
content: 'Hello world'
});
for(i in results){
var marker = new google.maps.Marker({
map: map,
position: results[i].geometry.location
});
google.maps.event.addListener(marker, 'click', function() {
infobox.setContent('blablabla');
infobox.open(map,marker);
alert(infobox.content); //displays 'blablabla'
});
}
}
});
Basically it's creating some markers on a single map based on a given address-string. It adds an infoWindow to the markers that opens on click.
Problem is: the infoWindow displays empty.
Screenshot here:
PS: Using Maps API V3
I just ran into the same problem, and found the very simple cause of it: The text in the info window was actually displayed, but in white color, and therefore just not visible on the white background. Giving the content a different color via CSS solved the problem for me.
Basically you need to use a function external to your marker adding-loop to add the infobox message to each marker... for an example and detailed explanation see:
http://code.google.com/apis/maps/documentation/javascript/events.html#EventClosures
Here is how I have done it.
var map,markersArray,infowindow; //infowindow has been declared as a global variable.
function initialize(){
var myOptions = {
zoom: 14,
center: new google.maps.LatLng(51.5001524,-0.1262362),
mapTypeId: google.maps.MapTypeId.ROADMAP
}
map = new google.maps.Map(document.getElementById("map_canvas"),
myOptions);
infowindow = new google.maps.InfoWindow(
{
size: new google.maps.Size(150,50)
});
google.maps.event.addListener(map, 'click', function() {
infowindow.close();
});
markersArray = [];
}
function createMarker(latlng, html,zoom) {
var contentString = html;
var marker = new google.maps.Marker({
position: latlng,
map: map,
zIndex: Math.round(latlng.lat()*-100000)<<5
});
google.maps.event.addListener(marker, 'click', function() {
infowindow.setContent(contentString);
infowindow.open(map,marker);
});
marker.MyZoom = zoom;
return marker;
}
You can find the working example here and the complete javascript here.
I have resolved issue by adding below code.
setTimeout(function () { GeocodeMarker.info.open(GoogleMap,
GeocodeMarker); }, 300);
Thanks