javascript for arcgis 取区域中心点

Question

我通过queryTask.execute查询返回了featureSet对象，如何获取到这区域的中心点？

Answer 1

var line = new esri.geometry.Polyline({
"paths": [[[-122.68,45.53], [-122.58,45.55],[-122.57,45.58],[-122.53,45.6]]],
"spatialReference": { "wkid": 4326 }
});
var lineSymbol = new esri.symbol.CartographicLineSymbol(
esri.symbol.CartographicLineSymbol.STYLE_SOLID,
new dojo.Color("#0000FF"), 2,
esri.symbol.CartographicLineSymbol.CAP_ROUND,
esri.symbol.CartographicLineSymbol.JOIN_MITER, 5
);
var polyline = new esri.Graphic(line, lineSymbol);本回答被网友采纳