arcgis js 4.x加载SceneLayer并实现基于属性查询定位及高亮

发布于:2024-04-29 ⋅ 阅读:(31) ⋅ 点赞:(0)

一、代码

<!DOCTYPE html>
<html>
<head>
    <meta charset="utf-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1,maximum-scale=1,user-scalable=no">
    <title></title>

    <link rel="stylesheet" href="https://js.arcgis.com/4.24/esri/themes/light/main.css" />
    <script src="https://js.arcgis.com/4.24/"></script>

    <style>
        html,
        body,
        #viewDiv {
            padding: 0;
            margin: 0;
            height: 100%;
            width: 100%;
            position: absolute;
        }
    </style>

</head>

<body>

    <div id="viewDiv">
        <div style="position:absolute;right:10px;top:10px">请输入<input type="text" id="myInput" /><button onclick="search()">查询</button></div>
    </div>

    <script>
        var view, sceneLayer;
        var Map, Graphic, MapView, MapImageLayer, GraphicsLayer, SpatialReference, Extent, Point, WMTSLayer, esriConfig,
            TileLayer, Polygon;
        var trajectoryData = [];
        require(["esri/Map", "esri/Graphic",
            "esri/views/SceneView", "esri/layers/MapImageLayer", "esri/layers/GraphicsLayer",
            "esri/geometry/SpatialReference", "esri/geometry/Extent", "esri/geometry/Point",
            "esri/layers/WMTSLayer", "esri/config", "esri/layers/TileLayer", "esri/geometry/Polygon", "esri/layers/WMSLayer",
            "esri/core/urlUtils", "esri/layers/VectorTileLayer", "esri/WebScene", "esri/layers/SceneLayer",
            "esri/portal/Portal", "esri/portal/PortalItem", "esri/views/layers/SceneLayerView"

        ], function (

            Map, Graphic,
            SceneView,
            MapImageLayer, GraphicsLayer,
            SpatialReference,
            Extent,
            Point,
            WMTSLayer, esriConfig, TileLayer, Polygon, WMSLayer, urlUtils, VectorTileLayer, WebScene, SceneLayer,
            Portal, PortalItem, SceneLayerView, Query
        ) {

            Map = Map;
            Graphic = Graphic;
            MapView = MapView;
            MapImageLayer = MapImageLayer;
            GraphicsLayer = GraphicsLayer;
            SpatialReference = SpatialReference;
            Extent = Extent;
            Point = Point;
            WMTSLayer = WMTSLayer;
            esriConfig = esriConfig;
            TileLayer = TileLayer;
            Polygon = Polygon;


            const map = new Map();
            sceneLayer = new SceneLayer({
                url: "https://edutrial.geoscene.cn/geoscene/rest/services/Hosted/test_WSL1/SceneServer/layers/0",
                //outFields: ["*"]
                //最好不要把SceneLayer的outFields设置为"*",这个图层中要素的字段很多,如果把所有字段信息都传输到客户端,网络传输的压力会比较大,您可以观察此前network中请求数量是100多,设置为"*"后,请求数量变成800多了
            });
            view = new SceneView({
                container: "viewDiv",
                map: map,
            });
            map.add(sceneLayer);

        });

        let highlight;
        function search() {
            var inputElement = document.getElementById('myInput');
            // 获取input的值
            var inputValue = inputElement.value;
            view.whenLayerView(sceneLayer).then(function (layerView) {
                let query = sceneLayer.createQuery();
                query.where = "OBJECTID =" + inputValue;
                //场景图层使用的OBJECTID字段是OBJECTID_1,在查询返回的字段中,要包含OBJECTID_1字段信息(通过设置outFields信息),这样才可以高亮这个要素。
                //可以设置returnGeometry,返回该要素对应的footprint,然后定位过去
                query.multipatchOption = "xyFootprint";
                query.outFields = ["objectid_1"];
                query.returnGeometry = true;

                sceneLayer.queryFeatures(query).then(function (result) {
                    console.log(result)
                    if (result.features.length > 0) {
                        view.goTo(result.features)
                    }
                    if (highlight) {
                        highlight.remove();
                    }
                    highlight = layerView.highlight(result.features);
                })
                
            });

        }

    </script>

</body>
</html>

二、效果


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