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Google Earth Engine(GEE)——evaluate实现一键批量下载研究区内的所有单张影像(上海市部分区域)
2022-06-25 10:09:00 【此星光明2021年博客之星云计算Top3】
本文主要的目的就是实现研究区的批量影像下载,主要用的市evaluate和每一个影像中的'system:index',然后利用for循环将影像进行逐景下载。
函数:
evaluate(callback)
Asynchronously retrieves the value of this object from the server and passes it to the provided callback function.
Arguments:
this:computedobject (ComputedObject):
The ComputedObject instance.
callback (Function):
A function of the form function(success, failure), called when the server returns an answer. If the request succeeded, the success argument contains the evaluated result. If the request failed, the failure argument will contains an error message.
evaluate(callback)
异步地从服务器获取此对象的值,并将其传递给提供的回调函数。
参数。
this:computedobject(ComputedObject)。
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