Open InfoWindow for each polygon google maps V3
You can't use the same form of InfoWindow.open for a polygon as you use for a marker (there is no marker to pass in).
From the documentation
open(map?:Map|StreetViewPanorama, anchor?:MVCObject)
Return Value: None
Opens this InfoWindow on the given map. Optionally, an InfoWindow can be associated with an anchor. In the core API, the only anchor is the Marker class. However, an anchor can be any MVCObject that exposes a LatLng position property and optionally a Point anchorPoint property for calculating the pixelOffset (see InfoWindowOptions). The anchorPoint is the offset from the anchor's position to the tip of the InfoWindow.)
You need to specifically set the place you want it to open when you call the open method (the latlng of the click is usually a good choice) with InfoWindow.setPosition().
Example
code snippet:
var infowindow = new google.maps.InfoWindow({
size: new google.maps.Size(150, 50)
});
function initialize() {
var geolib = google.maps.geometry.spherical;
var myOptions = {
zoom: 20,
center: new google.maps.LatLng(32.738158, -117.14874),
mapTypeControl: true,
mapTypeControlOptions: {
style: google.maps.MapTypeControlStyle.DROPDOWN_MENU
},
navigationControl: true,
mapTypeId: google.maps.MapTypeId.ROADMAP
}
map = new google.maps.Map(document.getElementById("map_canvas"),
myOptions);
google.maps.event.addListener(map, 'click', function() {
infowindow.close();
});
bounds = new google.maps.LatLngBounds();
var polygon1 = new google.maps.Polygon({
map: map,
path: [geolib.computeOffset(new google.maps.LatLng(32.737355, -117.148719), 100, 0),
geolib.computeOffset(new google.maps.LatLng(32.737355, -117.148719), 100, 120),
geolib.computeOffset(new google.maps.LatLng(32.737355, -117.148719), 100, -120)
],
name: "polygon1"
});
google.maps.event.addListener(polygon1, 'click', function(event) {
var contentString = "name:" + this.name + "<br>" + event.latLng.toUrlValue(6);
infowindow.setContent(contentString);
infowindow.setPosition(event.latLng);
infowindow.open(map);
});
for (var i = 0; i < polygon1.getPath().getLength(); i++) {
bounds.extend(polygon1.getPath().getAt(i));
}
var polygon2 = new google.maps.Polygon({
map: map,
path: [geolib.computeOffset(new google.maps.LatLng(32.739341, -117.148912), 90, 180),
geolib.computeOffset(new google.maps.LatLng(32.739341, -117.148912), 90, 60),
geolib.computeOffset(new google.maps.LatLng(32.739341, -117.148912), 90, -60)
],
name: "polygon2"
});
google.maps.event.addListener(polygon2, 'click', function(event) {
var contentString = "name:" + this.name + "<br>" + event.latLng.toUrlValue(6);
infowindow.setContent(contentString);
infowindow.setPosition(event.latLng);
infowindow.open(map);
});
for (var i = 0; i < polygon2.getPath().getLength(); i++) {
bounds.extend(polygon2.getPath().getAt(i));
}
map.fitBounds(bounds);
}
google.maps.event.addDomListener(window, 'load', initialize);
function createClickablePoly(poly, html, label, point) {
gpolys.push(poly);
if (!point && poly.getPath && poly.getPath().getLength && (poly.getPath().getLength > 0) && poly.getPath().getAt(0)) {
point = poly.getPath().getAt(0);
}
var poly_num = gpolys.length - 1;
if (!html) {
html = "";
} else {
html += "<br>";
}
var length = poly.Distance();
if (length > 1000) {
html += "length=" + poly.Distance().toFixed(3) / 1000 + " km";
} else {
html += "length=" + poly.Distance().toFixed(3) + " meters";
}
for (var i = 0; i < poly.getPath().getLength(); i++) {
html += "<br>poly[" + poly_num + "][" + i + "]=" + poly.getPath().getAt(i);
}
html += "<br>Area: " + poly.Area() + " sq meters";
// html += poly.getLength().toFixed(2)+" m; "+(poly.getLength()*3.2808399).toFixed(2)+" ft; ";
// html += (poly.getLength()*0.000621371192).toFixed(2)+" miles";
var contentString = html;
google.maps.event.addListener(poly, 'click', function(event) {
infowindow.setContent(contentString);
if (event) {
point = event.latLng;
}
infowindow.setPosition(point);
infowindow.open(map);
// map.openInfoWindowHtml(point,html);
});
if (!label) {
label = "polyline #" + poly_num;
}
label = "<a href='javascript:google.maps.event.trigger(gpolys[" + poly_num + "],\"click\");'>" + label + "</a>";
// add a line to the sidebar html
// side_bar_html += '<input type="checkbox" id="poly'+poly_num+'" checked="checked" onclick="togglePoly('+poly_num+');">' + label + '<br />';
}body,
html {
height: 100%;
width: 100%;
}<script src="https://maps.google.com/maps/api/js?libraries=geometry&key=AIzaSyCkUOdZ5y7hMm0yrcCQoCvLwzdM6M8s5qk"></script>
<table border="1" style="height:100%; width:100%">
<tr>
<td>
<div id="map_canvas" style="width:100%; height:100%"></div>
</td>
<td width="200">
<div id="report"></div>
</td>
</tr>
</table><script>
function initMap() {
var map = new google.maps.Map(document.getElementById('map'), {
zoom: 12,
center: {lat: 45.15492713361847, lng: 15.40557861328125}
});
var polygons = [{name: 'first name', coordinates:[{lat:45.15492713361847,lng:15.40557861328125},{lat:45.07933920973809,lng:15.5291748046875},{lat:45.01918507438175,lng:15.43304443359375},{lat:45.07933920973809,lng:15.3204345703125}]}];
// foreach your polygons
for (var i = 0; i < polygons.length; i++) {
var item = polygons[i];
var coors = item["coordinates"];
var name = item["name"];
var Polygon = new google.maps.Polygon({
path: coors,
strokeColor: '#66b3ff',
strokeOpacity: 0.8,
strokeWeight: 5,
editable: false,
fillColor: 'blue',
fillOpacity: 0.5,
});
Polygon.setMap(map);
// call function to set window
attachPolygonInfoWindow(Polygon, coors, name);
}
}
function attachPolygonInfoWindow(polygon, coors, html)
{
polygon.infoWindow = new google.maps.InfoWindow({
content: html
});
polygon.infoWindow.setPosition(getHighestWindowPosition(coors));
google.maps.event.addListener(polygon, 'mouseover', function () {
polygon.infoWindow.open(map, polygon);
});
google.maps.event.addListener(polygon, 'mouseout', function () {
polygon.infoWindow.close();
});
}
// function to get highest position of polygon to show window nice on top
function getHighestWindowPosition(coors) {
var lat = -5000, lng = 0, i = 0, n = coors.length;
for (; i !== n; ++i) {
if (coors[i].lat > lat) {
lat = coors[i].lat;
lng = coors[i].lng;
}
}
return {lat: lat, lng: lng};
}
</script>