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この質問に対する受け入れられた回答を実装しました。html ファイルを実行すると、Google マップ マーカーの上に書いているテキストが間違った場所に表示されます (画像 error.png を参照)。マーカーの上にテキストを正確に表示するのを手伝ってくれる人はいますか?

ここに画像の説明を入力

ここに画像の説明を入力

マーカー.html

    <html><head>
<title> Hi </title>
<script type="text/javascript" src="http://maps.google.com/maps/api/js?sensor=false"></script>
<script type="text/javascript">

            function TxtOverlay(pos, txt, cls, map){

                this.pos = pos;
                this.txt_ = txt;
                this.cls_ = cls;
                this.map_ = map;
                this.div_ = null;
                this.setMap(map);
            }

            TxtOverlay.prototype = new google.maps.OverlayView();
            TxtOverlay.prototype.onAdd = function(){
                var div = document.createElement('DIV');
                div.className = this.cls_;
                div.innerHTML = this.txt_;                
                var overlayProjection = this.getProjection();
                var position = overlayProjection.fromLatLngToDivPixel(this.pos);
                div.style.left = ( position.x) + 'px';
                div.style.top = ( position.y)+ 'px';                
                var panes = this.getPanes();
                panes.floatPane.appendChild(div);
            }
            TxtOverlay.prototype.draw = function(){
                var overlayProjection = this.getProjection();
                var position = overlayProjection.fromLatLngToDivPixel(this.pos);
                var div = this.div_;
                div.style.left = ( position.x) + 'px';
                div.style.top = ( position.y)+ 'px';
            }

            TxtOverlay.prototype.onRemove = function(){
                this.div_.parentNode.removeChild(this.div_);
                this.div_ = null;
            }
            TxtOverlay.prototype.hide = function(){
                if (this.div_) {
                    this.div_.style.visibility = "hidden";
                }
            }
            TxtOverlay.prototype.show = function(){
                if (this.div_) {
                    this.div_.style.visibility = "visible";
                }
            }
            TxtOverlay.prototype.toggle = function(){
                if (this.div_) {
                    if (this.div_.style.visibility == "hidden") {
                        this.show();
                    }
                    else {
                        this.hide();
                    }
                }
            }

            TxtOverlay.prototype.toggleDOM = function(){
                if (this.getMap()) {
                    this.setMap(null);
                }
                else {
                    this.setMap(this.map_);
                }
            }

            var map;
            function init(){
                var latlng = new google.maps.LatLng(37.90695894, -122.07920128);
                var myOptions = {
                    zoom: 4,
                    center: latlng,
                    mapTypeId: google.maps.MapTypeId.ROADMAP
                };
                map = new google.maps.Map(document.getElementById("map"), myOptions);
                var marker = new google.maps.Marker({
                    position: latlng,
                    map: map,
                    title: "Hello World!",
                    icon:"./bluepin.PNG"
                });
                customTxt = "<div>1</div>"
                txt = new TxtOverlay(latlng,customTxt,"customBox",map )
            }
        </script>
        <style>
            .customBox {                                
                background: AARRGGBB;
                border: 1px;
                color:#ffffff;
                position: relative;
            }
        </style>
    </head>
    <body onload="init()">
        <div id="map" style="width: 600px; height: 600px;">
        </div>
    </body>
</html>
4

1 に答える 1

0

マーカーの上に表示されるように、div をオフセットする必要があります。(-5, -30) のオフセットは、このマーカーと数値「1」に対して機能します。

        function TxtOverlay(pos, txt, cls, map, offset){

            this.pos = pos;
            this.txt_ = txt;
            this.cls_ = cls;
            this.map_ = map;
            this.offset_ = offset;
            this.div_ = null;
            this.setMap(map);
        }

        TxtOverlay.prototype.onAdd = function(){
            var div = document.createElement('DIV');
            div.className = this.cls_;
            div.innerHTML = this.txt_;                
            this.div_ = div;
            var overlayProjection = this.getProjection();
            var position = overlayProjection.fromLatLngToDivPixel(this.pos);
            div.style.left = ( position.x + this.offset_.x) + 'px';
            div.style.top = ( position.y + this.offset_.y)+ 'px';                
            var panes = this.getPanes();
            panes.floatPane.appendChild(div);
        }
        TxtOverlay.prototype.draw = function(){
            var overlayProjection = this.getProjection();
            var position = overlayProjection.fromLatLngToDivPixel(this.pos);
            var div = this.div_;
            div.style.left = ( position.x + this.offset_.x) + 'px';
            div.style.top = ( position.y + this.offset_.y)+ 'px';                
        }

        txt = new TxtOverlay(latlng,customTxt,"customBox",map,new google.maps.Point(-5,-30) )

例

MarkerWithLabel ユーティリティ ライブラリも参照してください。

例

于 2013-02-05T16:21:33.940 に答える