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<!doctype html>
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<html>
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<head>
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<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
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<link rel="stylesheet" href="v5.3.0/css/ol.css" type="text/css">
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<link rel="stylesheet" href="../../../css/pintuer-min.css" type="text/css">
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<style>
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.map {
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height: 800px;
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width: 100%;
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}
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</style>
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<script language="javascript" src="../../../../common/script/jquery.js" type="text/javascript"></script>
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<script language="javascript" src="../../../../common/script/pintuer.js" type="text/javascript"></script>
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<script language="javascript" src="../../../../common/script/jquery.bs.js" type="text/javascript"></script>
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<script src="v5.3.0/build/ol.js"></script>
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<script src="https://cdn.polyfill.io/v2/polyfill.min.js?features=requestAnimationFrame,Element.prototype.classList,URL"></script>
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<title>OpenLayers example</title>
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<style type="text/css">
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#menu {
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float: left;
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position: absolute;
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bottom: 50px;
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right: 30px;
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z-index: 2000;
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}
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.checkbox {
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left: 20px;
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}
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/**
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* 提示框的样式信息
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*/
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.tooltip {
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position: relative;
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background: rgba(0, 0, 0, 0.5);
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border-radius: 4px;
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color: white;
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padding: 4px 8px;
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opacity: 0.7;
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white-space: nowrap;
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}
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.tooltip-measure {
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opacity: 1;
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font-weight: bold;
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}
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.tooltip-static {
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background-color: #ffffff;
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color: black;
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border: 1px solid white;
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}
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.tooltip-measure:before,
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.tooltip-static:before {
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border-top: 6px solid rgba(0, 0, 0, 0.5);
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border-right: 6px solid transparent;
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border-left: 6px solid transparent;
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content: "";
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position: absolute;
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bottom: -6px;
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margin-left: -7px;
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left: 50%;
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}
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.tooltip-static:before {
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border-top-color: #ffffff;
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}
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#scalebar {
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float: left;
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margin-bottom: 10px;
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}
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</style>
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</head>
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<body>
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<h2>My Map</h2>
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<div id="map" class="map border"></div>
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<div>
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<button onclick="addPoint()" type="button">添加点</button>
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<button onclick="addText()" type="button">添加文字</button>
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<button onclick="addLine()" type="button">添加轨迹</button>
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<button onclick="addInteractions()" type="button">添加多边形</button>
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<button onclick="addRegularPolygonTest()" type="button">添加扇形</button>
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<button onclick="addEventListener()" type="button">添加聚合</button>
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<button onclick="getDist()" type="button">计算距离</button>
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<button onclick="addlenght()" type="button">测量</button>
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<div>
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<div id="menu">
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<label>测量类型选择</label>
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<select id="type">
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<option value="length">长度</option>
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<option value="area">面积</option>
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</select>
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<label class="checkbox label"><input type="checkbox" id="geodesic" />使用大地测量</label>
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</div>
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</div>
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<div id="scalebar"></div>
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</div>
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<script type="text/javascript">
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var key = "d7b1b7243fce9720e4e1ae73e41a47ad";
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var drawSource = null;
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var draw, snap;
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var drawVector = null;
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var FancePoints = null;
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var popup = null;
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//地图创建
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drawSource = new ol.source.Vector();
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var map = new ol.Map({
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layers: [
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new ol.layer.Tile({
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source: new ol.source.OSM(),//原始地图
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validity: false
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}),
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// new ol.layer.Tile({
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// source: new ol.source.XYZ({
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// url: "http://localhost:9090/mbtiles/index.jsp?mapindex=vecva&zoom={z}&col={x}&row={y}"
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// })
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// }),
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// new ol.layer.Tile({
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// source: new ol.source.XYZ({
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// url: "http://localhost:9090/mbtiles/index.jsp?mapindex=cia&zoom={z}&col={x}&row={y}"
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// }),
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// visible: false
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// }),
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new ol.layer.Vector({
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source: drawSource,
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style: new ol.style.Style({
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fill: new ol.style.Fill({
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color: 'rgba(0, 255, 0, 0.3)'
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}),
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stroke: new ol.style.Stroke({
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color: '#ffcc33',
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width: 2
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}),
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image: new ol.style.Circle({
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radius: 7,
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fill: new ol.style.Fill({
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color: '#ffcc33'
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})
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})
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})
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})
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],
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target: 'map',
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view: new ol.View({
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projection: 'EPSG:4326',
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center: [112.97935279, 28.21347823],
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zoom: 15
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}),
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controls: ol.control.defaults({
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attributionOptions: {
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collapsible: false
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}
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})
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});
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var pDiv = $("#popup");
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if (pDiv.length == 0) {
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$("body").append("<div id=\"popup\" class='bg-main' style=\"width:250px;\"></div>");
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pDiv = $("#popup");
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}
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//pDiv.popover('destroy');
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popup = new ol.Overlay({
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element: pDiv[0],
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positioning: 'bottom-center',
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stopEvent: false,
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offset: [0, -50]
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});
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map.addOverlay(popup);
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//pointermove
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map.on('pointermove', function (evt) {
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var feature = map.forEachFeatureAtPixel(evt.pixel,
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function (feature) {
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return feature;
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});
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if (feature) {
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var coordinates = feature.getGeometry().getCoordinates();
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popup.setPosition(coordinates);
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pDiv.html("sss");
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pDiv.show();
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} else {
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pDiv.hide();
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}
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});
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map.on('singleclick', function (event) {
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// map.forEachFeatureAtPixel(event.pixel, feature => {
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// 为移动到的feature发送自定义的singleclick消息
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//feature.dispatchEvent({type: 'singleclick', event: event});
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//});
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});
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map.on('click', function(evt) {
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//debugger
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var coordinate = evt.coordinate;
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/****************************************************/
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//判断当前单击处是否有要素，捕获到要素时弹出popup
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// feature = map.forEachFeatureAtPixel(evt.pixel, function(feature, layerVetor) { return feature; });
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// if (feature) { //捕捉到要素
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// if (feature.getProperties().features) { //聚合情况下
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// if (feature.getProperties().features.length == 1) { //只有一个要素
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// // layer.msg("聚合该处有1个要素")
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// featuerInfo = feature.getProperties().features[0].values_.attribute;
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// pDiv.innerHTML = ''; //清空popup的内容容器
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// addFeatrueInfo(featuerInfo); //在popup中加载当前要素的具体信息
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// if (popup.getPosition() == undefined) {
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// popup.setPosition(coordinate); //设置popup的位置
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// }
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// } else { //有多个要素
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// //layer.msg("多标记聚合！");
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// info_popup.setPosition(undefined);
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// }
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// } else {
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// info_popup.setPosition(undefined);
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// }
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// } else {
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// info_popup.setPosition(undefined);
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// }
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/******************************************/
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});
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function addPoint() {
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let oneP = new ol.Feature({
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geometry: new ol.geom.Point([113.005943, 28.219205])
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});
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//oneP.set("desc", _desc);
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oneP.setStyle(new ol.style.Style({
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image: new ol.style.Icon(/** @type {olx.style.IconOptions} */ ({
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color: '#8959A8',
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crossOrigin: 'anonymous',
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rotation: 45 * (2 * Math.PI) / 360,
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src: webHome + '/common/images/arrow/arrow01.png',
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scale: 0.8
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})), text: new ol.style.Text({
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text: 'A',
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scale: 1,
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fill: new ol.style.Fill({
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color: '#000000'
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}),
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stroke: new ol.style.Stroke({
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color: '#FFFF99',
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width: 3.5
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})
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})
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}));
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// UserFeature["d_" + _data.eqpid] = oneP;
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var mapLayers = new ol.layer.Vector({
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source: new ol.source.Vector({
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features: [oneP]
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}),
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zindex: 20
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});
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map.addLayer(mapLayers);
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}
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function addText() {
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let oneP = new ol.Feature({
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geometry: new ol.geom.Point([113.006943, 28.219305])
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//geometry: new ol.geom.Circle([113.006943, 28.219305], 20 / map.getView().getProjection().getMetersPerUnit())
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});
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oneP.on('singleclick', function (evt) {
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//var coordinate = evt.coordinate;
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alert("aa");
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//overlay.setPosition(coordinate);
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});
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//oneP.set("desc", _desc);
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oneP.setStyle(new ol.style.Style({
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fill: new ol.style.Fill({
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color: '#0a3399CC'
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}),
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image: new ol.style.Icon(/** @type {olx.style.IconOptions} */ ({
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color: '#8959A8',
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crossOrigin: 'anonymous',
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rotation: 45 * (2 * Math.PI) / 360,
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src: webHome + '/common/images/point/point01.png',
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scale: 0.5
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})),
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text: new ol.style.Text({
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text: '1',
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//scale: 1.3,
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fill: new ol.style.Fill({
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color: '#000000'
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}),
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stroke: new ol.style.Stroke({
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color: '#FFFF99',
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width: 3.5
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})
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})
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}));
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map.addLayer(new ol.layer.Vector({
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source: new ol.source.Vector({
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features: [oneP]
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}),
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zindex: 52
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}));
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}
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// 将方向标注放在线段中间
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function direction_labeling_02(res, lineStringForl, coordis, vs, styles) {
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for (let i = 0; i < vs.length; i++) {
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let line = vs[i]['line'];
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let start = line[0];
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let end = line[1];
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let array_coor = [
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(start[0] + end[0]) / 2, (start[1] + end[1]) / 2
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];
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let d = vs[i]['d'];
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styles.push(new ol.style.Style({
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geometry: new ol.geom.Point(array_coor),
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image: new ol.style.Icon({
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src: webHome + '/common/images/arrow/arrow_t.png',
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scale: 0.5,
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rotateWithView: true,
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rotation: -d
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})
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}))
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}
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}
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function calcD(start, end) {
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let dx = end[0] - start[0];
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let dy = end[1] - start[1];
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let rotation = Math.atan2(dy, dx);
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console.log("角度" + rotation);
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return rotation;
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}
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function calcLineStringD(coordis) {
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let n = coordis.length;
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let vs = [];
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for (let i = 0; i < n; i++) {
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if (i + 1 < n) {
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vs.push({
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"line": [coordis[i], coordis[i + 1]],
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"d": calcD(coordis[i], coordis[i + 1])
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})
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}
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}
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return vs;
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}
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function addLine() {
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let oneP = new ol.Feature({
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geometry: new ol.geom.LineString([[113.006943, 28.219305], [113.009943, 28.219605], [113.010943, 28.220305]])
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});
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map.addLayer(new ol.layer.Vector({
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source: new ol.source.Vector({
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features: [oneP]
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}),
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zindex: 22
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}));
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//oneP.set("desc", _desc);
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oneP.setStyle(function (resolution) {
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var lineStringForl = resolution.getGeometry();
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var coordis = lineStringForl.getCoordinates();
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var styles = [
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new ol.style.Style({
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stroke: new ol.style.Stroke({
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color: 'green',
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width: 10
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})
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})
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];
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// 计算线段角度
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let vs = calcLineStringD(coordis);
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// direction_labeling_01(res, lineStringForl, coordis, vs, styles);
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direction_labeling_02(100, lineStringForl, coordis, vs, styles);
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return styles;
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});
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}
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function clearDraw() {
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drawSource.clear();
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FancePoints = new Array();
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}
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function addInteractions() {
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draw = new ol.interaction.Draw({
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source: drawSource,
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type: "Polygon"
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});
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//map.removeInteraction(draw);
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map.addInteraction(draw);
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snap = new ol.interaction.Snap({source: drawSource});
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map.addInteraction(snap);
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draw.on('drawstart',
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function (evt) {
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drawSource.clear();
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}, this);
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draw.on('drawend',
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function (evt) {
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// set sketch
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FancePoints = [];
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var geom = evt.feature.getGeometry().getCoordinates()[0];
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for (var k = 0; k < geom.length; k++) {
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FancePoints[FancePoints.length] = {lon: geom[k][0], lat: geom[k][1]};
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}
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map.removeInteraction(draw);
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showFance();
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}, this);
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}
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function showFance() {
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var onePF = null;
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var _cos = new Array();
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for (var i = 0; i < FancePoints.length; i++) {
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_cos[_cos.length] = [FancePoints[i].lon, FancePoints[i].lat];
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}
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onePF = new ol.Feature({
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geometry: new ol.geom.Polygon([_cos])
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});
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if (onePF != null) {
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map.addLayer(new ol.layer.Vector({
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source: new ol.source.Vector({
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features: [onePF]
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}
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), style: new ol.style.Style({
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fill: new ol.style.Fill({
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color: 'rgba(0, 255, 0, 0.3)'
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}),
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stroke: new ol.style.Stroke({
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color: '#ffcc33',
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width: 2
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})
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}),
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zindex: 50
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}));
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}
|
|
|
}
|
|
|
function getDist(){
|
|
|
//let dis = new ol.Sphere(6378137);
|
|
|
//let _d=dis.haversineDistance([113.006943, 28.219305], [113.009943, 28.219605]);
|
|
|
alert(ol.sphere.getDistance([113.006943, 28.219305], [113.009943, 28.219605]));
|
|
|
}
|
|
|
|
|
|
/* ol.geom.Polygon.createRegularPolygonCurve = function(origin, radius, sides,r,angel) {
|
|
|
var rotation = 360 - r;
|
|
|
var angle = Math.PI * ((1/sides) - (1/2));
|
|
|
if(rotation) {
|
|
|
angle += (rotation / 180) * Math.PI;
|
|
|
}
|
|
|
var rotatedAngle, x, y;
|
|
|
var points = [];
|
|
|
for(var i=0; i<sides; ++i) {
|
|
|
var an = i*((360 - rotation)/360);
|
|
|
rotatedAngle = angle + (an * 2 * Math.PI / sides);
|
|
|
x = origin.x + (radius * Math.cos(rotatedAngle));
|
|
|
y = origin.y + (radius * Math.sin(rotatedAngle));
|
|
|
points.push([x, y]);
|
|
|
}
|
|
|
if(rotation!=0){
|
|
|
points.push([origin]);
|
|
|
}
|
|
|
//var ring = new ol.geom.LinearRing(points);
|
|
|
//ring.rotate(parseFloat(r)+90+parseFloat(angel),origin);
|
|
|
return new ol.geom.Polygon([points]);
|
|
|
};
|
|
|
|
|
|
function getRings (center, radius, startAngle, endAngle, pointNum) {
|
|
|
var sin;
|
|
|
var cos;
|
|
|
var x;
|
|
|
var y;
|
|
|
var angle;
|
|
|
var points = new Array();
|
|
|
points.push(center);
|
|
|
for (var i = 0; i <= pointNum; i++) {
|
|
|
angle = startAngle + (endAngle - startAngle) * i / pointNum;
|
|
|
sin = Math.sin(angle * Math.PI / 180);
|
|
|
cos = Math.cos(angle * Math.PI / 180);
|
|
|
x = center[0] + radius * sin;
|
|
|
y = center[1] + radius * cos;
|
|
|
points[i + 1] = [x, y];
|
|
|
}
|
|
|
var point = points;
|
|
|
point.push(center);
|
|
|
return new ol.geom.Polygon([point]);
|
|
|
}
|
|
|
|
|
|
|
|
|
function addRegularPolygon(){
|
|
|
let oneP = new ol.Feature({
|
|
|
geometry: getRings([113.005943, 28.219205],1000,30,180,100)
|
|
|
});
|
|
|
//oneP.set("desc", _desc);
|
|
|
oneP.setStyle(new ol.style.Style({
|
|
|
fill: new ol.style.Fill({
|
|
|
color: 'rgba(0, 255, 0, 0.3)'
|
|
|
}),
|
|
|
stroke: new ol.style.Stroke({
|
|
|
color: '#ffcc33',
|
|
|
width: 2
|
|
|
})
|
|
|
}));
|
|
|
// UserFeature["d_" + _data.eqpid] = oneP;
|
|
|
var mapLayers = new ol.layer.Vector({
|
|
|
source: new ol.source.Vector({
|
|
|
features: [oneP]
|
|
|
}),
|
|
|
zindex: 20
|
|
|
});
|
|
|
map.addLayer(mapLayers);
|
|
|
} */
|
|
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
* 创建扇形
|
|
|
* @param [x,y] center 扇形中心点
|
|
|
* @param number randius 扇形半径 与中心点对应的坐标系单位
|
|
|
* @param number sAngle 扇形起始边与X轴正方向夹角°
|
|
|
* @param number angle 圆心角°（逆时针方向为正）
|
|
|
* @returns {ol.geom.Polygon}
|
|
|
* @constructor
|
|
|
*/
|
|
|
ol.geom.Sector = function (center, randius, sAngle, angle) {
|
|
|
sAngle = (360 - sAngle + 90) % 360;
|
|
|
var points = [];
|
|
|
points.push(center);
|
|
|
var ep = null;
|
|
|
for (var i = 0; i <= angle; ++i) {
|
|
|
var x = center[0] + randius * Math.cos((sAngle + i) * Math.PI / 180);
|
|
|
var y = center[1] + randius * Math.sin((sAngle + i) * Math.PI / 180);
|
|
|
points.push([x, y]);
|
|
|
}
|
|
|
points.push(center);
|
|
|
return new ol.geom.Polygon([points]);
|
|
|
};
|
|
|
|
|
|
/**
|
|
|
* _id:设备ID
|
|
|
* @param [x,y] _point 扇形中心点
|
|
|
* @param number _bj 扇形半径 m
|
|
|
* @param number sAngle 扇形起始边与X轴正方向夹角°
|
|
|
* @param number angle 圆心角°（逆时针方向为正）
|
|
|
* @returns {ol.geom.Polygon}
|
|
|
* @constructor
|
|
|
*/
|
|
|
function addRegularPolygon(_id,_point, _bj, sAngle, angle,_func){
|
|
|
debugger
|
|
|
let oneP = new ol.Feature({
|
|
|
geometry: new ol.geom.Sector(_point,_bj/ map.getView().getProjection().getMetersPerUnit(),sAngle,angle)
|
|
|
});
|
|
|
//oneP.set("desc", _desc);
|
|
|
oneP.setStyle(new ol.style.Style({
|
|
|
fill: new ol.style.Fill({
|
|
|
color: 'rgba(0, 255, 0, 0.3)'
|
|
|
}),
|
|
|
stroke: new ol.style.Stroke({
|
|
|
color: '#ffcc33',
|
|
|
width: 2
|
|
|
})
|
|
|
}));
|
|
|
// UserFeature["d_" + _data.eqpid] = oneP;
|
|
|
var mapLayers = new ol.layer.Vector({
|
|
|
source: new ol.source.Vector({
|
|
|
features: [oneP]
|
|
|
}),
|
|
|
zindex: 20
|
|
|
});
|
|
|
map.addLayer(mapLayers);
|
|
|
//map.addLayer(mapLayers);
|
|
|
//MarkList["tp_" + _id] = mapLayers;
|
|
|
//map.removeLayer(MapRadar[_id]);
|
|
|
//MapRadar[_id] = mapLayers;
|
|
|
//if (MapRadarShow) {
|
|
|
//map.addLayer(mapLayers);
|
|
|
//}
|
|
|
}
|
|
|
//备注：起点=设备角度+圆心角/2， 40起点现在是写死的
|
|
|
function addRegularPolygonTest(){
|
|
|
addRegularPolygon("tt1pt",[113.006943, 28.219305], 1500, 40, 90);
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
//聚合
|
|
|
|
|
|
var dataSource=[{"lat":113.006943, "lon":28.219305,"userName":"四方坪","monthYear":"ddddd","code":"110","waterUse":"14521"},{"lat":113.006493, "lon":28.209305,"userName":"四方坪","monthYear":"ddddd","code":"110","waterUse":"14521"}];
|
|
|
var features = new Array(dataSource.length);
|
|
|
for (var i = 0; i < dataSource.length; i++) {
|
|
|
|
|
|
|
|
|
// var coordinate = ol.proj.transform([lat[i], lon[i]], 'EPSG:4326', 'EPSG:3857');
|
|
|
// var coordinate = ol.proj.transform([lat[i], lon[i]], 'EPSG:4326', 'EPSG:4326');
|
|
|
var coordinate = [dataSource[i].lat, dataSource[i].lon];
|
|
|
coordinate.map(parseFloat);
|
|
|
// console.log("转换后经纬度：" + coordinate);
|
|
|
|
|
|
|
|
|
var attr = {
|
|
|
userName: dataSource[i].userName,
|
|
|
lat: dataSource[i].lat,
|
|
|
lon: dataSource[i].lon,
|
|
|
address: dataSource[i].monthYear,
|
|
|
code: dataSource[i].code,
|
|
|
phone: dataSource[i].waterUse,
|
|
|
};
|
|
|
features[i] = new ol.Feature({
|
|
|
geometry: new ol.geom.Point(coordinate),
|
|
|
attribute: attr,
|
|
|
|
|
|
});
|
|
|
}
|
|
|
|
|
|
var source = new ol.source.Vector({
|
|
|
features: features,
|
|
|
|
|
|
});
|
|
|
var clusterSource = new ol.source.Cluster({
|
|
|
distance: 40,
|
|
|
source: source,
|
|
|
|
|
|
});
|
|
|
|
|
|
//加载聚合标注的矢量图层
|
|
|
var styleCache = {};
|
|
|
var layerVetor = new ol.layer.Vector({
|
|
|
source: clusterSource,
|
|
|
style: function(feature, resolution) {
|
|
|
var size = feature.get('features').length;
|
|
|
var style = styleCache[size];
|
|
|
if (!style) {
|
|
|
style = [new ol.style.Style({
|
|
|
image:new ol.style.Circle({
|
|
|
radius: 10,
|
|
|
stroke: new ol.style.Stroke({
|
|
|
color: '#fff'
|
|
|
}),
|
|
|
fill: new ol.style.Fill({
|
|
|
color: '#3399CC'
|
|
|
}),
|
|
|
scale:map.getView().getZoom()/20
|
|
|
}),
|
|
|
// text: new ol.style.Text({
|
|
|
// font: '28px Calibri,sans-serif',
|
|
|
// text: size.toString(),
|
|
|
// fill: new ol.style.Fill({
|
|
|
// color: '#000',
|
|
|
// border: 5,
|
|
|
// width: 30
|
|
|
// })
|
|
|
// })
|
|
|
})];
|
|
|
styleCache[size] = style;
|
|
|
}
|
|
|
return style;
|
|
|
}
|
|
|
});
|
|
|
|
|
|
map.addLayer(layerVetor);
|
|
|
|
|
|
// map.getView().on('change:resolution', function () {
|
|
|
// var style = layerVetor.getStyle();
|
|
|
// // 重新设置图标的缩放率，基于层级10来做缩放
|
|
|
// // console.log("塔台标注放大缩小尺寸："+0.2*(this.getZoom()-13))
|
|
|
// // console.log("地图放大缩小尺寸："+this.getZoom())
|
|
|
// // console.log("地图放大缩小计算值："+this.getZoom()/18)
|
|
|
// style.getImage().setScale(this.getZoom()/18);
|
|
|
// mapLayers.setStyle(style);
|
|
|
// })
|
|
|
|
|
|
|
|
|
|
|
|
function addEventListener(){
|
|
|
|
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
* Format length output.
|
|
|
* @param {module:ol/geom/LineString~LineString} line The line.
|
|
|
* @return {string} The formatted length.
|
|
|
*/
|
|
|
//定义矢量数据源
|
|
|
var source = new ol.source.Vector();
|
|
|
//定义矢量图层
|
|
|
var vector = new ol.layer.Vector({
|
|
|
source: source,
|
|
|
style: new ol.style.Style({
|
|
|
fill: new ol.style.Fill({
|
|
|
color: 'rgba(255,255,255,0.2)'
|
|
|
}),
|
|
|
stroke: new ol.style.Stroke({
|
|
|
color: '#e21e0a',
|
|
|
width: 2
|
|
|
}),
|
|
|
image: new ol.style.Circle({
|
|
|
radius: 5,
|
|
|
fill: new ol.style.Fill({
|
|
|
color: '#ffcc33'
|
|
|
})
|
|
|
})
|
|
|
})
|
|
|
});
|
|
|
//将矢量图层添加到地图中
|
|
|
map.addLayer(vector);
|
|
|
|
|
|
//添加比例尺控件
|
|
|
var scaleLineControl = new ol.control.ScaleLine({
|
|
|
units: 'metric',
|
|
|
target: 'scalebar',
|
|
|
className: 'ol-scale-line'
|
|
|
});
|
|
|
map.addControl(scaleLineControl);
|
|
|
|
|
|
//实例化鼠标位置控件
|
|
|
var mousePositionControl = new ol.control.MousePosition({
|
|
|
coodrdinateFormat: ol.coordinate.createStringXY(4),//坐标格式
|
|
|
//地图投影坐标系
|
|
|
projection: new ol.proj.Projection({
|
|
|
code: 'EPSG:4326',//投影编码
|
|
|
units: 'degrees',
|
|
|
axisOrientation: 'neu'
|
|
|
}),
|
|
|
//className:'tip',
|
|
|
target: document.getElementById('tip'),//显示鼠标位置信息的目标容器
|
|
|
undefinedHTML: ' '//未定义坐标标记
|
|
|
});
|
|
|
|
|
|
//添加鼠标位置控件
|
|
|
map.addControl(mousePositionControl);
|
|
|
|
|
|
//实例化鹰眼控件
|
|
|
var overviewMapControl = new ol.control.OverviewMap({
|
|
|
//在鹰眼中相同坐标系下不通数据源的图层
|
|
|
layers: [
|
|
|
new ol.layer.Tile({
|
|
|
source: new ol.source.OSM({
|
|
|
'url': 'http://{a-c}.tile.opencyclemap.org/cycle/{z}/{x}/{y}.png'
|
|
|
})
|
|
|
})
|
|
|
],
|
|
|
collapseLabel: '\u00BB',
|
|
|
lable: '\u00AB',
|
|
|
collapsed: false,
|
|
|
});
|
|
|
//添加鹰眼
|
|
|
map.addControl(overviewMapControl);
|
|
|
|
|
|
//创建一个WGS84球体对象
|
|
|
//var wgs84Sphere = new ol.Sphere(6378137);
|
|
|
//创建一个当前要绘制的对象
|
|
|
var sketch = new ol.Feature();
|
|
|
//创建一个帮助提示框对象
|
|
|
var helpTooltipElement;
|
|
|
//创建一个帮助提示信息对象
|
|
|
var helpTooltip;
|
|
|
//创建一个测量提示框对象
|
|
|
var measureTooltipElement;
|
|
|
//创建一个测量提示信息对象
|
|
|
var measureTooltip;
|
|
|
//继续绘制多边形的提示信息
|
|
|
var continuePolygonMsg = '单击以继续绘制多边形';
|
|
|
//继续绘制线段的提示信息
|
|
|
var continueLineMsg = '单击以继续绘制直线';
|
|
|
|
|
|
//鼠标移动触发的函数
|
|
|
var pointerMoveHandler = function (evt) {
|
|
|
//Indicates if the map is currently being dragged.
|
|
|
//Only set for POINTERDRAG and POINTERMOVE events. Default is false.
|
|
|
//如果是平移地图则直接结束
|
|
|
if (evt.dragging) {
|
|
|
return;
|
|
|
}
|
|
|
//帮助提示信息
|
|
|
var helpMsg = '单击开始';
|
|
|
|
|
|
if (sketch) {
|
|
|
//获取绘图对象的几何要素
|
|
|
var geom = sketch.getGeometry();
|
|
|
//如果当前绘制的几何要素是多线段，则将绘制提示信息设置为多线段绘制提示信息
|
|
|
if (geom instanceof ol.geom.Polygon) {
|
|
|
helpMsg = continuePolygonMsg;
|
|
|
} else if (geom instanceof ol.geom.LineString) {
|
|
|
helpMsg = continueLineMsg;
|
|
|
}
|
|
|
}
|
|
|
//设置帮助提示要素的内标签为帮助提示信息
|
|
|
helpTooltipElement.innerHTML = helpMsg;
|
|
|
//设置帮助提示信息的位置
|
|
|
helpTooltip.setPosition(evt.coordinate);
|
|
|
//移除帮助提示要素的隐藏样式
|
|
|
$(helpTooltipElement).removeClass('hidden');
|
|
|
};
|
|
|
|
|
|
//触发pointermove事件
|
|
|
map.on('pointermove', pointerMoveHandler);
|
|
|
|
|
|
//当鼠标移除地图视图的时为帮助提示要素添加隐藏样式
|
|
|
$(map.getViewport()).on('mouseout', function () {
|
|
|
$(helpTooltipElement).addClass('hidden');
|
|
|
});
|
|
|
|
|
|
//获取大地测量复选框
|
|
|
var geodesicCheckbox = document.getElementById('geodesic');
|
|
|
//获取类型
|
|
|
var typeSelect = document.getElementById('type');
|
|
|
//定义一个交互式绘图对象
|
|
|
var draw;
|
|
|
|
|
|
//添加交互式绘图对象的函数
|
|
|
function addInteraction() {
|
|
|
// 获取当前选择的绘制类型
|
|
|
var type = typeSelect.value == 'area' ? 'Polygon' : 'LineString';
|
|
|
//创建一个交互式绘图对象
|
|
|
draw = new ol.interaction.Draw({
|
|
|
//绘制的数据源
|
|
|
source: source,
|
|
|
//绘制类型
|
|
|
type: type,
|
|
|
//样式
|
|
|
style: new ol.style.Style({
|
|
|
fill: new ol.style.Fill({
|
|
|
color: 'rgba(255,255,255,0.2)'
|
|
|
}),
|
|
|
stroke: new ol.style.Stroke({
|
|
|
color: 'rgba(0,0,0,0.5)',
|
|
|
lineDash: [10, 10],
|
|
|
width: 2
|
|
|
}),
|
|
|
image: new ol.style.Circle({
|
|
|
radius: 5,
|
|
|
stroke: new ol.style.Stroke({
|
|
|
color: 'rgba(0,0,0,0.7)'
|
|
|
}),
|
|
|
fill: new ol.style.Fill({
|
|
|
color: 'rgba(255,255,255,0.2)'
|
|
|
})
|
|
|
})
|
|
|
})
|
|
|
});
|
|
|
//将交互绘图对象添加到地图中
|
|
|
map.addInteraction(draw);
|
|
|
|
|
|
//创建测量提示框
|
|
|
createMeasureTooltip();
|
|
|
//创建帮助提示框
|
|
|
createHelpTooltip();
|
|
|
|
|
|
//定义一个事件监听
|
|
|
var listener;
|
|
|
//定义一个控制鼠标点击次数的变量
|
|
|
var count = 0;
|
|
|
//绘制开始事件
|
|
|
draw.on('drawstart', function (evt) {
|
|
|
//The feature being drawn.
|
|
|
sketch = evt.feature;
|
|
|
//提示框的坐标
|
|
|
var tooltipCoord = evt.coordinate;
|
|
|
//监听几何要素的change事件
|
|
|
//Increases the revision counter and dispatches a 'change' event.
|
|
|
|
|
|
listener = sketch.getGeometry().on('change', function (evt) {
|
|
|
//The event target.
|
|
|
//获取绘制的几何对象
|
|
|
var geom = evt.target;
|
|
|
//定义一个输出对象，用于记录面积和长度
|
|
|
var output;
|
|
|
if (geom instanceof ol.geom.Polygon) {
|
|
|
map.removeEventListener('singleclick');
|
|
|
map.removeEventListener('dblclick');
|
|
|
//输出多边形的面积
|
|
|
output = formatArea(geom);
|
|
|
//获取多变形内部点的坐标
|
|
|
tooltipCoord = geom.getInteriorPoint().getCoordinates();
|
|
|
} else if (geom instanceof ol.geom.LineString) {
|
|
|
//输出多线段的长度
|
|
|
output = formatLength(geom);
|
|
|
//获取多线段的最后一个点的坐标
|
|
|
tooltipCoord = geom.getLastCoordinate();
|
|
|
}
|
|
|
|
|
|
//设置测量提示框的内标签为最终输出结果
|
|
|
measureTooltipElement.innerHTML = output;
|
|
|
//设置测量提示信息的位置坐标
|
|
|
measureTooltip.setPosition(tooltipCoord);
|
|
|
});
|
|
|
|
|
|
//地图单击事件
|
|
|
map.on('singleclick', function (evt) {
|
|
|
//设置测量提示信息的位置坐标，用来确定鼠标点击后测量提示框的位置
|
|
|
measureTooltip.setPosition(evt.coordinate);
|
|
|
//如果是第一次点击，则设置测量提示框的文本内容为起点
|
|
|
if (count == 0) {
|
|
|
measureTooltipElement.innerHTML = "起点";
|
|
|
}
|
|
|
//根据鼠标点击位置生成一个点
|
|
|
var point = new ol.geom.Point(evt.coordinate);
|
|
|
//将该点要素添加到矢量数据源中
|
|
|
source.addFeature(new ol.Feature(point));
|
|
|
//更改测量提示框的样式，使测量提示框可见
|
|
|
measureTooltipElement.className = 'tooltip tooltip-static';
|
|
|
//创建测量提示框
|
|
|
createMeasureTooltip();
|
|
|
//点击次数增加
|
|
|
count++;
|
|
|
});
|
|
|
|
|
|
//地图双击事件
|
|
|
map.on('dblclick', function (evt) {
|
|
|
var point = new ol.geom.Point(evt.coordinate);
|
|
|
source.addFeature(new ol.Feature(point));
|
|
|
});
|
|
|
}, this);
|
|
|
//绘制结束事件
|
|
|
draw.on('drawend', function (evt) {
|
|
|
count = 0;
|
|
|
//设置测量提示框的样式
|
|
|
measureTooltipElement.className = 'tooltip tooltip-static';
|
|
|
//设置偏移量
|
|
|
measureTooltip.setOffset([0, -7]);
|
|
|
//清空绘制要素
|
|
|
sketch = null;
|
|
|
//清空测量提示要素
|
|
|
measureTooltipElement = null;
|
|
|
//创建测量提示框
|
|
|
createMeasureTooltip();
|
|
|
//移除事件监听
|
|
|
ol.Observable.unByKey(listener);
|
|
|
//移除地图单击事件
|
|
|
map.removeEventListener('singleclick');
|
|
|
}, this);
|
|
|
}
|
|
|
//创建帮助提示框
|
|
|
function createHelpTooltip() {
|
|
|
//如果已经存在帮助提示框则移除
|
|
|
if (helpTooltipElement) {
|
|
|
helpTooltipElement.parentNode.removeChild(helpTooltipElement);
|
|
|
}
|
|
|
//创建帮助提示要素的div
|
|
|
helpTooltipElement = document.createElement('div');
|
|
|
//设置帮助提示要素的样式
|
|
|
helpTooltipElement.className = 'tooltip hidden';
|
|
|
//创建一个帮助提示的覆盖标注
|
|
|
helpTooltip = new ol.Overlay({
|
|
|
element: helpTooltipElement,
|
|
|
offset: [15, 0],
|
|
|
positioning: 'center-left'
|
|
|
});
|
|
|
//将帮助提示的覆盖标注添加到地图中
|
|
|
map.addOverlay(helpTooltip);
|
|
|
}
|
|
|
//创建测量提示框
|
|
|
function createMeasureTooltip() {
|
|
|
//创建测量提示框的div
|
|
|
measureTooltipElement = document.createElement('div');
|
|
|
measureTooltipElement.setAttribute('id', 'lengthLabel');
|
|
|
//设置测量提示要素的样式
|
|
|
measureTooltipElement.className = 'tooltip tooltip-measure';
|
|
|
//创建一个测量提示的覆盖标注
|
|
|
measureTooltip = new ol.Overlay({
|
|
|
element: measureTooltipElement,
|
|
|
offset: [0, -15],
|
|
|
positioning: 'bottom-center'
|
|
|
});
|
|
|
//将测量提示的覆盖标注添加到地图中
|
|
|
map.addOverlay(measureTooltip);
|
|
|
}
|
|
|
//测量类型发生改变时触发事件
|
|
|
typeSelect.onchange = function () {
|
|
|
//移除之前的绘制对象
|
|
|
map.removeInteraction(draw);
|
|
|
//重新进行绘制
|
|
|
addInteraction();
|
|
|
};
|
|
|
|
|
|
|
|
|
|
|
|
//格式化测量长度
|
|
|
var formatLength = function (line) {
|
|
|
//定义长度变量
|
|
|
var length;
|
|
|
//如果大地测量复选框被勾选，则计算球面距离
|
|
|
if (geodesicCheckbox.checked) {
|
|
|
//获取坐标串
|
|
|
var coordinates = line.getCoordinates();
|
|
|
//初始长度为0
|
|
|
length = 0;
|
|
|
//获取源数据的坐标系
|
|
|
var sourceProj = map.getView().getProjection();
|
|
|
//进行点的坐标转换
|
|
|
for (var i = 0; i < coordinates.length - 1; i++) {
|
|
|
//第一个点
|
|
|
var c1 = ol.proj.transform(coordinates[i], sourceProj, 'EPSG:4326');
|
|
|
//第二个点
|
|
|
var c2 = ol.proj.transform(coordinates[i + 1], sourceProj, 'EPSG:4326');
|
|
|
//获取转换后的球面距离
|
|
|
//Returns the distance from c1 to c2 using the haversine formula.
|
|
|
//length += wgs84Sphere.haversineDistance(c1, c2);
|
|
|
}
|
|
|
} else {
|
|
|
//计算平面距离
|
|
|
length = Math.round(line.getLength() * 100) / 100;
|
|
|
}
|
|
|
//定义输出变量
|
|
|
var output;
|
|
|
//如果长度大于1000，则使用km单位，否则使用m单位
|
|
|
if (length > 1000) {
|
|
|
output = (Math.round(length / 1000 * 100) / 100) + ' ' + 'km'; //换算成KM单位
|
|
|
} else {
|
|
|
output = (Math.round(length * 100) / 100) + ' ' + 'm'; //m为单位
|
|
|
}
|
|
|
return output;
|
|
|
};
|
|
|
|
|
|
//格式化测量面积
|
|
|
var formatArea = function (polygon) {
|
|
|
//定义面积变量
|
|
|
var area;
|
|
|
//如果大地测量复选框被勾选，则计算球面面积
|
|
|
if (geodesicCheckbox.checked) {
|
|
|
//获取初始坐标系
|
|
|
var sourceProj = map.getView().getProjection();
|
|
|
var geom = polygon.clone().transform(sourceProj, 'EPSG:4326');
|
|
|
//获取多边形的坐标系
|
|
|
var coordinates = geom.getLinearRing(0).getCoordinates();
|
|
|
//获取球面面积
|
|
|
//area = Math.abs(wgs84Sphere.geodesicArea(coordinates));
|
|
|
} else {
|
|
|
//获取平面面积
|
|
|
area = polygon.getArea();
|
|
|
}
|
|
|
//定义输出变量
|
|
|
var output;
|
|
|
//当面积大于10000时，转换为平方千米，否则为平方米
|
|
|
if (area > 10000) {
|
|
|
output = (Math.round(area / 1000000 * 100) / 100) + ' ' + 'km<sup>2</sup>';
|
|
|
} else {
|
|
|
output = (Math.round(area * 100) / 100) + ' ' + 'm<sup>2</sup>';
|
|
|
}
|
|
|
return output;
|
|
|
};
|
|
|
//添加交互绘图对象
|
|
|
addInteraction();
|
|
|
|
|
|
|
|
|
// var formatLength = function(line) {
|
|
|
// var length = getLength(line);
|
|
|
// var output;
|
|
|
// if (length > 100) {
|
|
|
// output = (Math.round(length / 1000 * 100) / 100) +
|
|
|
// ' ' + 'km';
|
|
|
// } else {
|
|
|
// output = (Math.round(length * 100) / 100) +
|
|
|
// ' ' + 'm';
|
|
|
// }
|
|
|
// return output;
|
|
|
// };
|
|
|
|
|
|
// var typeSelect = document.getElementById('map');
|
|
|
|
|
|
// /**
|
|
|
// * Let user change the geometry type.
|
|
|
// */
|
|
|
// typeSelect.onchange = function() {
|
|
|
// map.removeInteraction(draw);
|
|
|
// addInteraction();
|
|
|
// };
|
|
|
|
|
|
// function addlenght() {
|
|
|
// draw = new ol.interaction.Draw({
|
|
|
// source: drawSource,
|
|
|
// type: "LineString",
|
|
|
// style: new ol.style.Style({
|
|
|
// fill: new ol.style.Fill({
|
|
|
// color: 'rgba(255, 255, 255, 0.2)'
|
|
|
// }),
|
|
|
// stroke: new ol.style.Stroke({
|
|
|
// color: 'rgba(0, 0, 0, 0.5)',
|
|
|
// lineDash: [10, 10],
|
|
|
// width: 2
|
|
|
// })
|
|
|
|
|
|
// })
|
|
|
// });
|
|
|
|
|
|
// map.addInteraction(draw);
|
|
|
// snap = new ol.interaction.Snap({source: drawSource});
|
|
|
// map.addInteraction(snap);
|
|
|
// var listener;
|
|
|
// draw.on('drawstart',
|
|
|
// function(evt) {
|
|
|
// sketch = evt.feature;
|
|
|
// var tooltipCoord = evt.coordinate;
|
|
|
|
|
|
// listener = sketch.getGeometry().on('change', function(evt) {
|
|
|
// var geom = evt.target;
|
|
|
// var output;
|
|
|
// output = formatLength(geom);
|
|
|
// tooltipCoord = geom.getLastCoordinate();
|
|
|
// measureTooltipElement.innerHTML = output;
|
|
|
// measureTooltip.setPosition(tooltipCoord);
|
|
|
// }, this);
|
|
|
// });
|
|
|
// draw.on('drawend',
|
|
|
// function(evt) {
|
|
|
// measureTooltipElement.className = 'tooltip tooltip-static';
|
|
|
// measureTooltip.setOffset([0, -7]);
|
|
|
|
|
|
// sketch = null;
|
|
|
|
|
|
// measureTooltipElement = null;
|
|
|
// createMeasureTooltip();
|
|
|
// unByKey(listener);
|
|
|
// }, this);
|
|
|
|
|
|
// // draw.on('drawstart',
|
|
|
// // function (evt) {
|
|
|
// // drawSource.clear();
|
|
|
// // }, this);
|
|
|
// // draw.on('drawend',
|
|
|
// // function (evt) {
|
|
|
// // // set sketch
|
|
|
// // FancePoints = [];
|
|
|
// // var geom = evt.feature.getGeometry().getCoordinates()[0];
|
|
|
// // for (var k = 0; k < geom.length; k++) {
|
|
|
// // FancePoints[FancePoints.length] = {lon: geom[k][0], lat: geom[k][1]};
|
|
|
// // }
|
|
|
// // map.removeInteraction(draw);
|
|
|
// // showFance();
|
|
|
// // }, this);
|
|
|
// }
|
|
|
</script>
|
|
|
</body>
|
|
|
</html> |
