如何在arcgis二次開發程序中獲取高程數據信息？

代碼如下所示

var image identify:ImageServiceIdentifyTask = new ImageServiceIdentifyTask(image layer . URL)；

var parm:ImageServiceIdentifyParameters = new ImageServiceIdentifyParameters()；

var mosaic rule:mosaic rule = new mosaic rule()；

mosaicRule.ascending = false

mosaic rule . method = " esriMosaicCenter "；

parm.geometry = mapPoint

parm . mosaic rule = mosaic rule；

parm . pixelsizex = image layer . pixelsizex；

parm . pixelsizey = image layer . pixelsizey；

imageIdentify.execute(parm，new AsyncResponder(onResult，on fault))；

//操作成功

私有函數on result(image result:ImageServiceIdentifyResult，token : Object = null):void

{

var值:String = image result . value . tostring()；

}

//有錯誤的操作

私有函數onFault(信息:對象，標記:對象=空):void

{

}