javascript - ポリゴンまたは/および情報ウィンドウのマーカークラスター番号

Question

いくつかのポリゴンをクリックすると、これらのポリゴンの名前のインフォウィンドウが表示されます。このポリゴン内のマーカーのこのインフォウィンドウ番号（マーカークラスター番号と同じ）を入力するか、この番号（マーカークラスター番号）をポリゴンに配置することができますか？

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"  "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
    <head>
        <meta http-equiv="content-type" content="text/html; charset=utf-8"/>
        <meta name="viewport" content="initial-scale=1.0, user-scalable=no" />
    <link rel="stylesheet" type="text/css" href="css2.css" media="screen" />
    <title>StanOnline</title>

<style type="text/css">
html, body, #map_canvas {
width:   100%;
height:  100%;
margin:  0;
padding: 0;
} 
.infowindow * {font-size: 90%; margin: 0}
</style>

    <script type="text/javascript" src="http://maps.google.com/maps/api/js?sensor=false">
    </script>
    <script type="text/javascript" src="http://geoxml3.googlecode.com/svn/branches/polys/geoxml3.js">
    </script>
    <script type="text/javascript" src="http://geoxml3.googlecode.com/svn/trunk/ProjectedOverlay.js">
    </script>
    <script language="JavaScript">
<!--Show / Hide div dmenu-->
 function toggle(id) {
    var state = document.getElementById(id).style.display;
        if (state == 'block') {
            document.getElementById(id).style.display = 'block';
        } else {
            document.getElementById(id).style.display = 'none';
        }
    } 
</script>


    <script type="text/javascript">
var gmarkers = [];
function makeLink() {} ;
var bounds = new google.maps.LatLngBounds();
var geoXml = null;
var geoXmlDoc = null;
var map = null;
var myLatLng = null;
var myGeoXml3Zoom = true;
var sidebarHtml = "";
var infowindow = null;
var kmlLayer = null;
var preserveViewport = true;
var filename = "http://mini.hr/stanonline/mo_bck.kml";
var icon = new    google.maps.MarkerImage("http://localhost/projekt/7stanonline/img/punkt.gif",
new google.maps.Size(32, 32), new google.maps.Point(0, 0),
new google.maps.Point(16, 32));
var currentPopup;

function addMarker(lat, lng, info) {
var pt = new google.maps.LatLng(lat, lng);
bounds.extend(pt);

var marker = new google.maps.Marker({
    position: pt,
    icon: icon,
    //map: map
});

var popup = new google.maps.InfoWindow({
    content: info,
    maxWidth: 200
});

google.maps.event.addListener(marker, "click", function() {
    if (currentPopup != null) {
        currentPopup.close();
        currentPopup = null;
    }
    popup.open(map, marker);
    currentPopup = popup;
});

google.maps.event.addListener(popup, "closeclick", function() {
    currentPopup = null;
});

gmarkers.push(marker);

 }



 function MapTypeId2UrlValue(maptype) {
   var urlValue = 'm';
   switch(maptype){
   case google.maps.MapTypeId.HYBRID:    urlValue='h';
                    break;
  case google.maps.MapTypeId.SATELLITE: urlValue='k';
                    break;
  case google.maps.MapTypeId.TERRAIN:   urlValue='t';
                    break;
  default:
  case google.maps.MapTypeId.ROADMAP:   urlValue='m';
                    break;
}
return urlValue;
 }


function initialize() {
    myLatLng = new google.maps.LatLng(45.345537,14.439621);
  // these set the initial center, zoom and maptype for the map 
  // if it is not specified in the query string
  var lat = 45.345537;
  var lng = 14.439621;
  var zoom = 13;
  var maptype = google.maps.MapTypeId.ROADMAP;




  // If there are any parameters at eh end of the URL, they will be in  location.search
  // looking something like  "?marker=3"

  // skip the first character, we are not interested in the "?"
  var query = location.search.substring(1);

  // split the rest at each "&" character to give a list of  "argname=value"  pairs
  var pairs = query.split("&");
  for (var i=0; i<pairs.length; i++) {
    // break each pair at the first "=" to obtain the argname and value
var pos = pairs[i].indexOf("=");
var argname = pairs[i].substring(0,pos).toLowerCase();
var value = pairs[i].substring(pos+1).toLowerCase();

    // process each possible argname  -  use unescape() if theres any chance of spaces
    if (argname == "id") {id = unescape(value);}
    if (argname == "filename") {filename = unescape(value);}

    if (argname == "lat") {lat = parseFloat(value);}
    if (argname == "lng") {lng = parseFloat(value);}
    if (argname == "zoom") {
  zoom = parseInt(value);
  myGeoXml3Zoom = false;
}
    if (argname == "type") {
// from the v3 documentation 8/24/2010
// HYBRID This map type displays a transparent layer of major streets on satellite images. 
// ROADMAP This map type displays a normal street map. 
// SATELLITE This map type displays satellite images. 
// TERRAIN This map type displays maps with physical features such as terrain and vegetation. 
      if (value == "m") {maptype = google.maps.MapTypeId.ROADMAP;}
      if (value == "k") {maptype = google.maps.MapTypeId.SATELLITE;}
      if (value == "h") {maptype = google.maps.MapTypeId.HYBRID;}
      if (value == "t") {maptype = google.maps.MapTypeId.TERRAIN;}

    }
  }
  if (!isNaN(lat) && !isNaN(lng)) {
    myLatLng = new google.maps.LatLng(lat, lng);
  }
            var myOptions = {
                zoom: zoom,
                center: myLatLng,
                // zoom: 5,
                // center: myLatlng,
                mapTypeId: maptype
            };
            map = new google.maps.Map(document.getElementById("map_canvas"),
                  myOptions);
            infowindow = new google.maps.InfoWindow({});

 geoXml = new geoXML3.parser({
                map: map,
                infoWindow: infowindow,
                singleInfoWindow: true,
        zoom: myGeoXml3Zoom,

                afterParse: useTheData
            });

            geoXml.parse(filename);
    google.maps.event.addListener(map, "bounds_changed", makeSidebar);
    google.maps.event.addListener(map, "center_changed", makeSidebar);
    google.maps.event.addListener(map, "zoom_changed", makeSidebar);
  // Make the link the first time when the page opens
  makeLink();

  // Make the link again whenever the map changes
  google.maps.event.addListener(map, 'maptypeid_changed', makeLink);
  google.maps.event.addListener(map, 'center_changed', makeLink);
  google.maps.event.addListener(map, 'bounds_changed', makeLink);
  google.maps.event.addListener(map, 'zoom_changed', makeLink);
  //php addmarkers
    addMarker(45.374632, 14.425697,'<b>93 Feet East</b><br/>150 Brick Lane,  London  E1 6RU&lt;br/&gt;7 Dec 2010 : Jenny &amp; Johnny&lt;br/&gt;');
addMarker(45.374632, 14.425697,'<b>93 Feet East</b><br/>150 Brick Lane, London  E1 6RU&lt;br/&gt;7 Dec 2010 : Jenny &amp; Johnny&lt;br/&gt;');
addMarker(45.348674, 14.386749,'<b>Adelphi Theatre</b><br/>The Strand, London  WC2E 7NA&lt;br/&gt;11 Oct 2010 : Love Never Dies');
addMarker(45.35051, 14.351883,'<b>Adelphi Theatre</b><br/>The Strand, London  WC2E 7NA&lt;br/&gt;11 Oct 2010 : Love Never Dies');
addMarker(45.319618, 14.501915,'<b>Albany, The</b><br/>240 Gt. Portland Street, London  W1W 5QU');
addMarker(45.339893, 14.475479,'<b>Aldwych Theatre</b><br/>Aldwych, London  WC2B 4DF&lt;br/&gt;11 Oct 2010 : Dirty Dancing');
addMarker(45.343513, 14.436684,'<b>Alexandra Palace</b><br/>Wood Green, London  N22&lt;br/&gt;30 Oct 2010 : Lynx All-Nighter');
addMarker(45.330736, 14.434211,'<b>Stan F.La Guardia 10</b><br/>Najbolji stan na svijetu');
addMarker(45.385431, 14.357071,'<b>sdas</b><br/>dfsada');

  };

function kmlPgClick(pm) {
if (geoXml.docs[0].placemarks[pm].polygon.getMap()) {
  google.maps.event.trigger(geoXmlDoc.placemarks[pm].polygon,"click");
} else {
  geoXmlDoc.placemarks[pm].polygon.setMap(map);
  google.maps.event.trigger(geoXmlDoc.placemarks[pm].polygon,"click");
}
}
function kmlPlClick(pm) {
if (geoXml.docs[0].placemarks[pm].polyline.getMap()) {
   google.maps.event.trigger(geoXmlDoc.placemarks[pm].polyline,"click");
} else {
   geoXmlDoc.placemarks[pm].polyline.setMap(map);
   google.maps.event.trigger(geoXmlDoc.placemarks[pm].polyline,"click");
}
}

function kmlShowPlacemark(pm) {
if (geoXmlDoc.placemarks[pm].polygon) {
  map.fitBounds(geoXmlDoc.placemarks[pm].polygon.bounds);
//show only markers in polygon I zoomed to
for (var i=0;i<gmarkers.length;i++) {
  if   (google.maps.geometry.poly.containsLocation(gmarkers[i].getPosition(),geoXmlDoc.placemarks[pm].polygon)) {
     gmarkers[i].setMap(map);
  } else {
     gmarkers[i].setMap(null);
  }
 }

 } 


 for (var i=0;i<geoXmlDoc.placemarks.length;i++) {
 var placemark = geoXmlDoc.placemarks[i];
 if (i == pm) {
   if (placemark.polygon) placemark.polygon.setMap(null);
   if (placemark.polyline) placemark.polyline.setMap(map);

 } else {
   if (placemark.polygon) placemark.polygon.setMap(map);
   if (placemark.polyline) placemark.polyline.setMap(null);
   }
}
}

function kmlColor (kmlIn) {
var kmlColor = {};
if (kmlIn) {
aa = kmlIn.substr(0,2);
bb = kmlIn.substr(2,2);
gg = kmlIn.substr(4,2);
rr = kmlIn.substr(6,2);
kmlColor.color = "#" + rr + gg + bb;
kmlColor.opacity = parseInt(aa,16)/256;
 } else {
// defaults
kmlColor.color = randomColor();
kmlColor.opacity = 0.45;
}
return kmlColor;
}

function randomColor(){ 
var color="#";
var colorNum = Math.random()*8388607.0;  // 8388607 = Math.pow(2,23)-1
var colorStr = colorNum.toString(16);
color += colorStr.substring(0,colorStr.indexOf('.'));
return color;
};

 var highlightOptions = {fillColor: "#b9b8a2", strokeColor: "#000000", fillOpacity: 0.4, strokeWidth: 10};
var highlightLineOptions = {strokeColor: "#000000", strokeWidth: 80};
function kmlHighlightPoly(pm) {
 for (var i=0;i<geoXmlDoc.placemarks.length;i++) {
 var placemark = geoXmlDoc.placemarks[i];
 if (i == pm) {
   if (placemark.polygon) placemark.polygon.setOptions(highlightOptions);
   if (placemark.polyline) placemark.polyline.setOptions(highlightLineOptions);
 } else {
   if (placemark.polygon) placemark.polygon.setOptions(placemark.polygon.normalStyle);
   if (placemark.polyline)   placemark.polyline.setOptions(placemark.polyline.normalStyle);
 }
 }
 }
function kmlUnHighlightPoly(pm) {
 for (var i=0;i<geoXmlDoc.placemarks.length;i++) {
 if (i == pm) {
   var placemark = geoXmlDoc.placemarks[i];
   if (placemark.polygon) placemark.polygon.setOptions(placemark.polygon.normalStyle);
   if (placemark.polyline) placemark.polyline.setOptions(placemark.polyline.normalStyle);
 }
 }
 }


function showAll() {

top.location="test2.php";
map.fitBounds(geoXmlDoc.bounds); //show all bounds
map.setZoom(13);



//marker.setMap(null); 
for (var i=0;i<geoXmlDoc.placemarks.length;i++) {
 var placemark = geoXmlDoc.placemarks[i];
 if (placemark.polygon) placemark.polygon.setMap(map);
 if (placemark.polyline) placemark.polyline.setMap(map);
 }
}

function highlightPoly(poly, polynum) {
//    poly.setOptions({fillColor: "#0000FF", strokeColor: "#0000FF", fillOpacity: 0.3}) ;
  google.maps.event.addListener(poly,"mouseover",function() {
   var rowElem = document.getElementById('row'+polynum);
if (rowElem) rowElem.style.backgroundColor = "#b9b8a2"; //ovo je boja u sidebar-u
if (poly instanceof google.maps.Polygon) {
  poly.setOptions(highlightOptions);
} else if (poly instanceof google.maps.Polyline) {
  poly.setOptions(highlightLineOptions);
}
 });
google.maps.event.addListener(poly,"mouseout",function() {
var rowElem = document.getElementById('row'+polynum);
if (rowElem) rowElem.style.backgroundColor = ""; //pozadina nakon mouserover-a u sidebar-u
poly.setOptions(poly.normalStyle);
});
}  

// == rebuilds the sidebar to match the markers currently displayed ==
function makeSidebarPolygonEntry(i) {
var name = geoXmlDoc.placemarks[i].name;
 if (!name  || (name.length == 0)) name = "polygon #"+i;
// alert(name);
sidebarHtml += '<tr id="row'+i+'"><td onmouseover="kmlHighlightPoly('+i+');"  onmouseout="kmlUnHighlightPoly('+i+');"><a    href="javascript:kmlPgClick('+i+');">'+name+'</a> - <a  href="javascript:kmlShowPlacemark('+i+');">odaberi</a></td></tr>';

}
function makeSidebarPolylineEntry(i) {
var name = geoXmlDoc.placemarks[i].name;
if (!name  || (name.length == 0)) name = "polyline #"+i;
// alert(name);
sidebarHtml += '<tr id="row'+i+'"><td onmouseover="kmlHighlightPoly('+i+');"   onmouseout="kmlUnHighlightPoly('+i+');"><a  href="javascript:kmlPlClick('+i+');">'+name+'</a> - <a href="javascript:kmlShowPlacemark('+i+');">show</a></td></tr>';

}


function makeSidebar() {
 sidebarHtml = '<table><tr><td><a href="javascript:showAll();">Prika&#382i sve     kvartove</a></td></tr>';
  var currentBounds = map.getBounds();
 // if bounds not yet available, just use the empty bounds object;
if (!currentBounds) currentBounds=new google.maps.LatLngBounds();
if (geoXmlDoc) {
 for (var i=0; i<geoXmlDoc.placemarks.length; i++) {
  if (geoXmlDoc.placemarks[i].polygon) {
    if (currentBounds.intersects(geoXmlDoc.placemarks[i].polygon.bounds)) {
      makeSidebarPolygonEntry(i);
    }
  }
 if (geoXmlDoc.placemarks[i].polyline) {
  if (currentBounds.intersects(geoXmlDoc.placemarks[i].polyline.bounds)) {
     makeSidebarPolylineEntry(i);
  }
}

}
}
sidebarHtml += "</table>";
 document.getElementById("sidebar").innerHTML = sidebarHtml;
}

function useTheData(doc){
var currentBounds = map.getBounds();
if (!currentBounds) currentBounds=new google.maps.LatLngBounds();
// Geodata handling goes here, using JSON properties of the doc object
sidebarHtml = '<table><tr><td><a href="javascript:showAll();">Show All</a></td></tr>';
//  var sidebarHtml = '<table>';
 geoXmlDoc = doc[0];
for (var i = 0; i < geoXmlDoc.placemarks.length; i++) {
// console.log(doc[0].markers[i].title);
var placemark = geoXmlDoc.placemarks[i];
if (placemark.polygon) {
  if (currentBounds.intersects(placemark.polygon.bounds)) {
    makeSidebarPolygonEntry(i);
  }
  var kmlStrokeColor = kmlColor(placemark.style.color);
  var kmlFillColor = kmlColor(placemark.style.fillcolor);
  var normalStyle = {
      strokeColor: kmlStrokeColor.color,
      strokeWeight: placemark.style.width,
      strokeOpacity: kmlStrokeColor.opacity,
      fillColor: kmlFillColor.color,
      fillOpacity: kmlFillColor.opacity
      };
  placemark.polygon.normalStyle = normalStyle;

  highlightPoly(placemark.polygon, i);
}
if (placemark.polyline) {
  if (currentBounds.intersects(placemark.polyline.bounds)) {
     makeSidebarPolylineEntry(i);
  }
  var kmlStrokeColor = kmlColor(placemark.style.color);
  var normalStyle = {
      strokeColor: kmlStrokeColor.color,
      strokeWeight: placemark.style.width,
      strokeOpacity: kmlStrokeColor.opacity
      };
  placemark.polyline.normalStyle = normalStyle;

  highlightPoly(placemark.polyline, i);
}


/*    doc[0].markers[i].setVisible(false); */
}
sidebarHtml += "</table>";
document.getElementById("sidebar").innerHTML = sidebarHtml;
};


function hide_kml(){

        geoXml.hideDocument();  

}

function unhide_kml(){

        geoXml.showDocument();  

}
function reload_kml(){
geoXml.hideDocument();
delete geoXml;
geoXml = new geoXML3.parser({
                map: map,
                singleInfoWindow: true,
                afterParse: useTheData,
                preserveViewport: true
});
geoXml.parse(filename); 

}


 function hide_polys_kml(){
 for (var i=0;i<geoXmlDoc.gpolylines.length;i++) {
   geoXmlDoc.gpolylines[i].setMap(null);
 }
}

function unhide_polys_kml(){
 for (var i=0;i<geoXmlDoc.gpolylines.length;i++) {
   geoXmlDoc.gpolylines[i].setMap(map);
 }
}
 function load_kmlLayer() {
 kmlLayer = new google.maps.KmlLayer(filename);
 google.maps.event.addListener(kmlLayer, "status_changed", function() {
   document.getElementById('kmlstatus').innerHTML = "Kml Status:"+kmlLayer.getStatus();
 });
 kmlLayer.setMap(map);
}
function hide_kmlLayer() {
 kmlLayer.setMap(null);
}
function show_kmlLayer() {
 kmlLayer.setMap(map);
}

    </script>
</head>
<body onload="initialize()">
    <div id="map_canvas" style="width:100%; height:100%"></div>

    <div id="dmenu">
        <div id="hidden"><a href="javascript:;" onclick="toggle('dmenu');">  <img src="img/x.png"></a></div>
        <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;ODABERI KVART:
            <div id="sidebar">
    </div>
        </div>
            </div>
 </body>
</html>

score 3 · Accepted Answer

これを行う最も簡単な方法は、「useTheData」関数でポリゴンを処理することです。この関数は、geoxml3による処理後にデータが使用可能になった後に実行され、クリックされたポリゴンの情報ウィンドウにマーカーの数を配置します。

プレースマークの配列を処理してサイドバーをレンダリングするときは、各ポリゴンも処理して、含まれているマーカーの数を確認します。

function useTheData(doc){
  var currentBounds = map.getBounds();
  if (!currentBounds) currentBounds=new google.maps.LatLngBounds();
  // Geodata handling goes here, using JSON properties of the doc object
  sidebarHtml = '<table><tr><td><a href="javascript:showAll();">Show All</a></td></tr>';
  geoXmlDoc = doc[0];
  for (var i = 0; i < geoXmlDoc.placemarks.length; i++) {
    var placemark = geoXmlDoc.placemarks[i];
    if (placemark.polygon) { // processing a polygon
      // polygon highlighting
      var kmlStrokeColor = kmlColor(placemark.style.color);
      var kmlFillColor = kmlColor(placemark.style.fillcolor);
      var normalStyle = {
          strokeColor: kmlStrokeColor.color,
          strokeWeight: placemark.style.width,
          strokeOpacity: kmlStrokeColor.opacity,
          fillColor: kmlFillColor.color,
          fillOpacity: kmlFillColor.opacity
          };
      placemark.polygon.normalStyle = normalStyle;

      highlightPoly(placemark.polygon, i);

      // new code  
      var markersInPoly = 0;
      for (var mrkr=0; mrkr<gmarkers.length; mrkr++) {
        if (google.maps.geometry.poly.containsLocation(gmarkers[mrkr].getPosition(),placemark.polygon)) {
            markersInPoly++;
        }
      }
      placemark.numMarkers = markersInPoly;
      if (currentBounds.intersects(placemark.polygon.bounds)) {
        makeSidebarPolygonEntry(i);
      }
      clickablePolygon(placemark, "contains "+markersInPoly+" markers"); 
    }
// rest of processing (note if you will never have polylines, you can remove that code).

ポリゴンの情報ウィンドウにマーカーの数を追加する関数：

function clickablePolygon(placemark, info) {
  google.maps.event.addListener(placemark.polygon, "click", function(e) {
    if (e && e.latLng) {
      infowindow.setPosition(e.latLng);
    } else {
      infowindow.setPosition(placemark.polygon.bounds.getCenter());
    }
    infowindow.setContent('<div class="geoxml3_infowindow"><h3>' + placemark.name +
               '</h3><div>' + info + '</div></div>');
    infowindow.open(map);
  });
}

概念実証の実用化

javascript - ポリゴンまたは/および情報ウィンドウのマーカークラスター番号

1 に答える 1

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