纯色背景

使用SimpleMarker，设置为纯色背景。

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          <!-- 重点参数：containerClassNames -->
<!doctype html>
<html lang="zh-CN">

<head>
    <!-- 原始地址：//webapi.amap.com/ui/1.0/ui/overlay/SimpleMarker/examples/pure-color.html -->
    <base href="//webapi.amap.com/ui/1.1/ui/overlay/SimpleMarker/examples/" />
    <meta charset="utf-8">
    <meta name="viewport" content="initial-scale=1.0, user-scalable=no, width=device-width">
    <title>纯色背景</title>
    <style>
    html,
    body,
    #container {
        width: 100%;
        height: 100%;
        margin: 0px;
    }
    
    .amap-marker-label {
        font-size: 13px;
        border: 1px solid orange;
        background: #fff;
        border-radius: 10px 0 0 0;
        color: #690441;
    }
    
    .color_bar {
        width: 30px;
        height: 18px;
    }
    /**
     * 替换内置样式的图片
     */
    
    .amap-simple-marker-def-style.my_color .amap-simple-marker-icon {
        background-image: url('../assets/mbg_v2-fs8.png');
    }
    
    @media (min--moz-device-pixel-ratio: 1.5),
    (-o-min-device-pixel-ratio: 3/2),
    (-webkit-min-device-pixel-ratio: 1.5),
    (min-device-pixel-ratio: 1.5),
    (min-resolution: 1.5dppx) {
        .amap-simple-marker-def-style.my_color .amap-simple-marker-icon {
            background-image: url('../assets/mbg_v2@2x-fs8.png');
        }
    }
    </style>
</head>

<body>
    <div id="container"></div>
    <script type="text/javascript" src='//webapi.amap.com/maps?v=2.0&key=您申请的key值'></script>
    <!-- UI组件库 1.0 -->
    <script src="//webapi.amap.com/ui/1.1/main.js?v=1.1.1"></script>
    <script type="text/javascript">
    //创建地图
    var map = new AMap.Map('container', {
        zoom: 4
    });

    AMapUI.loadUI(['overlay/SimpleMarker'], function(SimpleMarker) {

        //内置的样式
        var iconStyles = SimpleMarker.getBuiltInIconStyles('default');

        if (typeof(console) !== 'undefined') {
            console.log(iconStyles.join(', '));
        }

        //获取一批grid排布的经纬度
        var lngLats = getGridLngLats(map.getCenter(), 5, iconStyles.length, 130, 70);

        for (var i = 0, len = lngLats.length; i < len; i++) {

            new SimpleMarker({
                iconTheme:'default',
                //添加自定义的class
                containerClassNames: 'my_color',
                //使用内置的iconStyle
                iconStyle: iconStyles[i],

                //图标文字
                iconLabel: {
                    //A,B,C.....
                    innerHTML: String.fromCharCode('A'.charCodeAt(0) + i),
                    style: {
                        //颜色, #333, red等等，这里仅作示例，取iconStyle中首尾相对的颜色
                        color: iconStyles[len - 1 - i]
                    }
                },

                //显示定位点
                //showPositionPoint:true,


                map: map,
                position: lngLats[i],
                title: 'iconStyle: ' + iconStyles[i] + '_' + iconStyles[len - 1 - i],

                //Marker的label,见http://lbs.amap.com/api/javascript-api/reference/overlay/#Marker
                label: {
                    content: iconStyles[i] + '<div class="color_bar" style="background:' + iconStyles[i] + '"></div>',
                   // offset: new AMap.Pixel(27, 25)
                }
            });
        }

    });

    AMap.plugin(['AMap.ToolBar'], function() {
        map.addControl(new AMap.ToolBar({
            map: map
        }));
    });

    /**
     * 返回一批网格排列的经纬度

     * @param  {AMap.LngLat} center 网格中心
     * @param  {number} colNum 列数
     * @param  {number} size  总数
     * @param  {number} cellX  横向间距
     * @param  {number} cellY  竖向间距
     * @return {Array}  返回经纬度数组
     */
    function getGridLngLats(center, colNum, size, cellX, cellY) {

        var pxCenter = map.lnglatToPixel(center);

        var rowNum = Math.ceil(size / colNum);

        var startX = pxCenter.getX(),
            startY = pxCenter.getY();

        cellX = cellX || 70;

        cellY = cellY || 70;


        var lngLats = [];

        for (var r = 0; r < rowNum; r++) {

            for (var c = 0; c < colNum; c++) {

                var x = startX + (c - (colNum - 1) / 2) * (cellX);

                var y = startY + (r - (rowNum - 1) / 2) * (cellY);

                lngLats.push(map.pixelToLngLat(new AMap.Pixel(x, y)));

                if (lngLats.length >= size) {
                    break;
                }
            }
        }
        return lngLats;
    }
    </script>
</body>

</html>
        
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