坐标系

var spatialReference = new SpatialReference(4326);

1

要素坐标点

var pointArr = [

new Point(116.94431351934418, 36.642791191513744, spatialReference),

new Point(116.94313181636085,36.644263733181496, spatialReference),

new Point(116.94323946773243, 36.644333923319806, spatialReference),

new Point(116.94214699103674, 36.64316768441554, spatialReference),

new Point(116.94173145496477, 36.643359669286696, spatialReference),

new Point(116.94251530866333, 36.644235392555245, spatialReference),

];

构建features

var features = [];

for (var i = 0; i < pointArr.length; i++) {

var graphics = new Graphic(pointArr[i], pointSymbol, { "OBJECTID": i, "LON": pointArr[i].x, "LAT": pointArr[i].y });

features.push(graphics);

}

构建fields

var fields = [

{ name: "OBJECTID", type: "esriFieldTypeOID", alias: "OBJECTID" },

{ name: "LON", type: "esriFieldTypeDouble", alias: "LON" },

{ name: "LAT", type: "esriFieldTypeDouble", alias: "LAT" }

];

构建featuresSet

var featureSetJson = {

displayFieldName: "",

geometryType: "esriGeometryPoint",

fieldAliases: {

OBJECTID: "OBJECTID",

LON: "LON",

LAT: "LAT"

},

fields: fields,

spatialReference: spatialReference,

features: features

};

var featuresSet = new FeatureSet(featureSetJson);

构建featureCollection

var layerDefinition = {

"geometryType": "esriGeometryPoint",

"fields": fields

};

var featureCollection = {

layerDefinition: layerDefinition,

featureSet: featuresSet

};

构建FeatureLayer

var featureLayer = new FeatureLayer(featureCollection);

1

完整代码

require([

"esri/map",

"esri/SpatialReference",

"esri/layers/FeatureLayer",

"esri/geometry/Point",

"esri/tasks/FeatureSet",

"esri/graphic",

"dojo/domReady!"

],

function (Map, SpatialReference, FeatureLayer, Point, FeatureSet, Graphic) {

var map = new Map("viewDiv", {

basemap: "streets",

center: [116.943089, 36.643737],

zoom: 18

});

var spatialReference = new SpatialReference(4326);

var pointArr = [

new Point(116.94431351934418, 36.642791191513744, spatialReference),

new Point(116.94313181636085,36.644263733181496, spatialReference),

new Point(116.94323946773243, 36.644333923319806, spatialReference),

new Point(116.94214699103674, 36.64316768441554, spatialReference),

new Point(116.94173145496477, 36.643359669286696, spatialReference),

new Point(116.94251530866333, 36.644235392555245, spatialReference),

];

var features = [];

for (var i = 0; i < pointArr.length; i++) {

var graphics = new Graphic(pointArr[i], pointSymbol, { "OBJECTID": i, "LON": pointArr[i].x, "LAT": pointArr[i].y });

features.push(graphics);

}

var fields = [

{ name: "OBJECTID", type: "esriFieldTypeOID", alias: "OBJECTID" },

{ name: "LON", type: "esriFieldTypeDouble", alias: "LON" },

{ name: "LAT", type: "esriFieldTypeDouble", alias: "LAT" }

];

var featureSetJson = {

displayFieldName: "",

geometryType: "esriGeometryPoint",

fieldAliases: {

OBJECTID: "OBJECTID",

LON: "LON",

LAT: "LAT"

},

fields: fields,

spatialReference: spatialReference,

features: features

};

var featuresSet = new FeatureSet(featureSetJson);

var layerDefinition = {

"geometryType": "esriGeometryPoint",

"fields": fields

};

var featureCollection = {

layerDefinition: layerDefinition,

featureSet: featuresSet

};

var featureLayer = new FeatureLayer(featureCollection);

map.addLayer(featureLayer);

})

api参考

https://developers.arcgis.com/javascript/3/jsapi/featurelayer-amd.html#featurelayer2

https://developers.arcgis.com/javascript/3/jsapi/featureset-amd.html#featureset2

有疑问可加1936057493

---------------------

作者：cjchnvs

来源：CSDN

原文：https://blog.csdn.net/qq_22267353/article/details/81233263

版权声明：本文为博主原创文章，转载请附上博文链接！