Open InfoWindow for each polygon google maps V3

Question

Hope someone can help me with this issue. I\'m trying to open an info windows on click for each polygon that my users created. I used the same code for a marker and works w

Answer 1

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 + "
" + 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 + "
" + 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 += "
";
  }
  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 += "
poly[" + poly_num + "][" + i + "]=" + poly.getPath().getAt(i);
  }
  html += "
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 = "" + label + "";
  // add a line to the sidebar html
  //  side_bar_html += '' + label + '
';
}

body,
html {
  height: 100%;
  width: 100%;
}