Javascript 如何使用Openlayers在此代码中显示纬度和经度? 拖动功能示例 #控制{ 宽度:512px; } #控制开关{ 左:1米; } #控制开关{ 列表样式:无; } var映射、向量、控件; 函数init(){ map=newOpenLayers.map('map'); var wms=new OpenLayers.Layer.wms(“OpenLayers wms”, "http://vmap0.tiles.osgeo.org/wms/vmap0?“,{层:'基本'}); 向量=新的OpenLayers.Layer.Vector(“向量层”); map.addLayers([wms,vectors]); addControl(新的OpenLayers.Control.LayerSwitcher()); addControl(新的OpenLayers.Control.MousePosition()); //addControl(新的OpenLayers.Control.Click()); 控件={ 要点:新的OpenLayers.Control.DrawFeature(向量, OpenLayers.Handler.Point), 行:新OpenLayers.Control.DrawFeature(向量, OpenLayers.Handler.Path), 多边形:新OpenLayers.Control.DrawFeature(向量, OpenLayers.Handler.Polygon), 拖动:新建OpenLayers.Control.DragFeature(矢量) }; for(变量键输入控件){ map.addControl(控件[键]); //map.addControl(单击); } setCenter(新OpenLayers.LonLat(0,0,3)); document.getElementById('noneToggle')。checked=true; } 功能切换控件(元素){ 用于(输入控件){ var控制=控制[键]; if(element.value==key&&element.checked){ 控件。激活(); }否则{ 控件。停用(); } } } 拖动功能示例 点、线、线串、多边形、数字化、几何图形、绘制、拖动 演示点、线和多边形的创建和编辑。 导航 抽签点 划线 画多边形 拖动特性

Javascript 如何使用Openlayers在此代码中显示纬度和经度? 拖动功能示例 #控制{ 宽度:512px; } #控制开关{ 左:1米; } #控制开关{ 列表样式:无; } var映射、向量、控件; 函数init(){ map=newOpenLayers.map('map'); var wms=new OpenLayers.Layer.wms(“OpenLayers wms”, "http://vmap0.tiles.osgeo.org/wms/vmap0?“,{层:'基本'}); 向量=新的OpenLayers.Layer.Vector(“向量层”); map.addLayers([wms,vectors]); addControl(新的OpenLayers.Control.LayerSwitcher()); addControl(新的OpenLayers.Control.MousePosition()); //addControl(新的OpenLayers.Control.Click()); 控件={ 要点:新的OpenLayers.Control.DrawFeature(向量, OpenLayers.Handler.Point), 行:新OpenLayers.Control.DrawFeature(向量, OpenLayers.Handler.Path), 多边形:新OpenLayers.Control.DrawFeature(向量, OpenLayers.Handler.Polygon), 拖动:新建OpenLayers.Control.DragFeature(矢量) }; for(变量键输入控件){ map.addControl(控件[键]); //map.addControl(单击); } setCenter(新OpenLayers.LonLat(0,0,3)); document.getElementById('noneToggle')。checked=true; } 功能切换控件(元素){ 用于(输入控件){ var控制=控制[键]; if(element.value==key&&element.checked){ 控件。激活(); }否则{ 控件。停用(); } } } 拖动功能示例 点、线、线串、多边形、数字化、几何图形、绘制、拖动 演示点、线和多边形的创建和编辑。 导航 抽签点 划线 画多边形 拖动特性,javascript,openlayers,Javascript,Openlayers,我想在文本框中显示每次鼠标点击的纬度和长度。我不明白从哪里可以得到经纬度 这就是您需要的: <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta name="viewport" content="width=device-width; initial-scale=1.0; maximum-scale=1.0; user-scalable=0;" /> <meta name

我想在文本框中显示每次鼠标点击的纬度和长度。我不明白从哪里可以得到经纬度

这就是您需要的:

<html xmlns="http://www.w3.org/1999/xhtml">
    <head>
    <meta name="viewport" content="width=device-width; initial-scale=1.0; maximum-scale=1.0; user-scalable=0;" />
    <meta name="apple-mobile-web-app-capable" content="yes" />
        <title>Drag Feature Example</title>

        <link rel="stylesheet" href="../theme/default/style.css" type="text/css" />
        <link rel="stylesheet" href="style.css" type="text/css" />
        <style type="text/css">
            #controls {
                width: 512px;
            }
            #controlToggle {
                padding-left: 1em;
            }
            #controlToggle li {
                list-style: none;
            }
        </style>

        <script src="../OpenLayers.js"></script>
        <script type="text/javascript">
            var map, vectors, controls;
            function init(){
                map = new OpenLayers.Map('map');
                var wms = new OpenLayers.Layer.WMS( "OpenLayers WMS",
                    "http://vmap0.tiles.osgeo.org/wms/vmap0?", {layers: 'basic'});

                vectors = new OpenLayers.Layer.Vector("Vector Layer");

                map.addLayers([wms, vectors]);
                map.addControl(new OpenLayers.Control.LayerSwitcher());
                map.addControl(new OpenLayers.Control.MousePosition());
        //map.addControl(new OpenLayers.Control.Click());

                controls = {
                    point: new OpenLayers.Control.DrawFeature(vectors,
                                OpenLayers.Handler.Point),

                    line: new OpenLayers.Control.DrawFeature(vectors,
                                OpenLayers.Handler.Path),
                    polygon: new OpenLayers.Control.DrawFeature(vectors,
                                OpenLayers.Handler.Polygon),
                    drag: new OpenLayers.Control.DragFeature(vectors)
                };

                for(var key in controls) {
                    map.addControl(controls[key]);
           // map.addControl(click);
            }

                map.setCenter(new OpenLayers.LonLat(0, 0), 3);
                document.getElementById('noneToggle').checked = true;
            }

            function toggleControl(element) {
                for(key in controls) {
                    var control = controls[key];
                    if(element.value == key && element.checked) {
                        control.activate();
                    } else {
                        control.deactivate();
                    }
                }
            }
        </script>
    </head>
    <body onload="init()">
        <h1 id="title">Drag Feature Example</h1>

        <div id="tags">
            point, line, linestring, polygon, digitizing, geometry, draw, drag
        </div>

        <p id="shortdesc">
            Demonstrates point, line and polygon creation and editing.
        </p>

        <div id="map" class="smallmap"></div>

        <div id="controls">
            <ul id="controlToggle">
                <li>
                    <input type="radio" name="type" value="none" id="noneToggle"
                           onclick="toggleControl(this);" checked="checked" />

                    <label for="noneToggle">navigate</label>
                </li>
                <li>
                    <input type="radio" name="type" value="point" id="pointToggle" onclick="toggleControl(this);" />
                    <label for="pointToggle">draw point</label>
                </li>
                <li>
                    <input type="radio" name="type" value="line" id="lineToggle" onclick="toggleControl(this);" />

                    <label for="lineToggle">draw line</label>
                </li>
                <li>
                    <input type="radio" name="type" value="polygon" id="polygonToggle" onclick="toggleControl(this);" />
                    <label for="polygonToggle">draw polygon</label>
                </li>
                <li>
                    <input type="radio" name="type" value="drag" id="dragToggle"
                           onclick="toggleControl(this);" />

                    <label for="dragToggle">drag feature</label>
                </li>
            </ul>
        </div>

        <div id="docs"></div>
    </body>
</html>
您可以在这里看到代码正在工作:

因此,您的代码应该如下所示:

map.events.register("click", map, function(e) {
  var position = map.getLonLatFromPixel(e.xy);

  OpenLayers.Util.getElement("mydiv").innerHTML = 
        position.lon.toFixed(3) + ', ' + position.lat.toFixed(3);

});
这就是您需要的:

<html xmlns="http://www.w3.org/1999/xhtml">
    <head>
    <meta name="viewport" content="width=device-width; initial-scale=1.0; maximum-scale=1.0; user-scalable=0;" />
    <meta name="apple-mobile-web-app-capable" content="yes" />
        <title>Drag Feature Example</title>

        <link rel="stylesheet" href="../theme/default/style.css" type="text/css" />
        <link rel="stylesheet" href="style.css" type="text/css" />
        <style type="text/css">
            #controls {
                width: 512px;
            }
            #controlToggle {
                padding-left: 1em;
            }
            #controlToggle li {
                list-style: none;
            }
        </style>

        <script src="../OpenLayers.js"></script>
        <script type="text/javascript">
            var map, vectors, controls;
            function init(){
                map = new OpenLayers.Map('map');
                var wms = new OpenLayers.Layer.WMS( "OpenLayers WMS",
                    "http://vmap0.tiles.osgeo.org/wms/vmap0?", {layers: 'basic'});

                vectors = new OpenLayers.Layer.Vector("Vector Layer");

                map.addLayers([wms, vectors]);
                map.addControl(new OpenLayers.Control.LayerSwitcher());
                map.addControl(new OpenLayers.Control.MousePosition());
        //map.addControl(new OpenLayers.Control.Click());

                controls = {
                    point: new OpenLayers.Control.DrawFeature(vectors,
                                OpenLayers.Handler.Point),

                    line: new OpenLayers.Control.DrawFeature(vectors,
                                OpenLayers.Handler.Path),
                    polygon: new OpenLayers.Control.DrawFeature(vectors,
                                OpenLayers.Handler.Polygon),
                    drag: new OpenLayers.Control.DragFeature(vectors)
                };

                for(var key in controls) {
                    map.addControl(controls[key]);
           // map.addControl(click);
            }

                map.setCenter(new OpenLayers.LonLat(0, 0), 3);
                document.getElementById('noneToggle').checked = true;
            }

            function toggleControl(element) {
                for(key in controls) {
                    var control = controls[key];
                    if(element.value == key && element.checked) {
                        control.activate();
                    } else {
                        control.deactivate();
                    }
                }
            }
        </script>
    </head>
    <body onload="init()">
        <h1 id="title">Drag Feature Example</h1>

        <div id="tags">
            point, line, linestring, polygon, digitizing, geometry, draw, drag
        </div>

        <p id="shortdesc">
            Demonstrates point, line and polygon creation and editing.
        </p>

        <div id="map" class="smallmap"></div>

        <div id="controls">
            <ul id="controlToggle">
                <li>
                    <input type="radio" name="type" value="none" id="noneToggle"
                           onclick="toggleControl(this);" checked="checked" />

                    <label for="noneToggle">navigate</label>
                </li>
                <li>
                    <input type="radio" name="type" value="point" id="pointToggle" onclick="toggleControl(this);" />
                    <label for="pointToggle">draw point</label>
                </li>
                <li>
                    <input type="radio" name="type" value="line" id="lineToggle" onclick="toggleControl(this);" />

                    <label for="lineToggle">draw line</label>
                </li>
                <li>
                    <input type="radio" name="type" value="polygon" id="polygonToggle" onclick="toggleControl(this);" />
                    <label for="polygonToggle">draw polygon</label>
                </li>
                <li>
                    <input type="radio" name="type" value="drag" id="dragToggle"
                           onclick="toggleControl(this);" />

                    <label for="dragToggle">drag feature</label>
                </li>
            </ul>
        </div>

        <div id="docs"></div>
    </body>
</html>
您可以在这里看到代码正在工作:

因此,您的代码应该如下所示:

map.events.register("click", map, function(e) {
  var position = map.getLonLatFromPixel(e.xy);

  OpenLayers.Util.getElement("mydiv").innerHTML = 
        position.lon.toFixed(3) + ', ' + position.lat.toFixed(3);

});

你见过这个例子吗?(他们有很多例子,我有。我想知道在这段代码中,LATLONG到底出现在哪里。我试图理解这段代码。你看过这个例子吗:?)?(他们有很多例子,我有。我想在这段代码中找出LATLONG的确切位置。我试图理解这一点code@mekasperasky什么是不起作用的?应该将前面的代码添加到init()函数中(在“control”初始化变量之后)你能重新发布代码并对其进行编辑吗?我按照你的要求做了,它正在停用其他鼠标事件,如点或线。它对点和线不起作用。这就是问题所在。请尝试我发布的代码并输出lat,然后在我画线时长时间等待点in@mekasperasky我编辑了我自己的代码。我希望它现在能帮助你。你呢可以在JSBin中在线查看它,我得到了相当长的行,如-6509037.608。这并不能解决我的问题。@mekasperasky什么东西不起作用?您应该将前面的代码添加到init()函数中(在“control”初始化变量之后)你能重新发布代码并对其进行编辑吗?我按照你的要求做了,它正在停用其他鼠标事件,如点或线。它对点和线不起作用。这就是问题所在。请尝试我发布的代码并输出lat,然后在我画线时长时间等待点in@mekasperasky我编辑了我自己的代码。我希望它现在能帮助你。你呢可以在JSBin中在线查看,我得到了相当长的线,比如-6509037.608。这并不能解决我的问题。