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According to the number
1. 2.At the end choose to download an operation data
How to use programming? Priority in VB
By the way, have a lot of pages, pages,
CodePudding user response:
Send a get request to http://search.gscloud.cn/search/csearch_json.shtml, the parameters of the belt is as follows:The callback: jsonp_callback
ProductId: 241
TableInfo: {" offset ": 0," pageSize ": 30," totalPage ": 5822," totalSize: "174647," sortSet ": [{" id" : "datadate", "sort" : "desc"}], "filterSet" : []}
Data: {" sdate ":" ", "edate" : ""," among ": {" minx:" 73.49941, "maxx" : 134.77281, "miny" : 18.153522, "maxy" : 53.560974}}
You get to a json, open the links below to see:
http://search.gscloud.cn/search/csearch_json.shtml? The callback=jsonp_callback & amp; ProductId=241 & amp; TableInfo=% 7 b % 22 offset % 22% 3 a0%2 c % 22 pagesize % 22% 3 a % 2 c % 22 totalpage % 22% 3 a5822%2 c % 22 totalsize % 22% 3 a174647%2 c % 22 sortset % 22% % 3 a 5 b % 7 b % 22 id % 3 a % 22 datadate 22% 22% % 22% 2 c % 22 sort % 3 a 7 d % 22 desc % 22% % 5 d % 2 c % 22 filterset % 22% % 5 b % 5 d % 3 a 7 d & amp; data=https://bbs.csdn.net/topics/%7B%22sdate%22%3A%22%22%2C%22edate%22%3A%22%22%2C%22extent%22%3A%7B%22minx%22%3A73.49941%2C%22maxx%22%3A134.77281%2C%22miny%22%3A18.153522%2C%22maxy%22%3A53.560974%7D%7D
We returned to the parameters, general analysis,
Tableinfo information is the requirement of return form, offset is offset, that is, how much the first article, begin from article 1 0, 30 is from 30 pagesize is how much of each page, can change to,50,500,5000 30 or more in order to get more data at a time, you can try to change the link to the red words look at the effect of the larger,
Data is requested data range, is not very familiar with the geographic data, the data above is the actual value in your link (yunnan province? , you must have a way to convert the position x, y,
Bunch of json, general analysis,
The id in json, as well as the above productid visit http://www.gscloud.cn/listdata/metadata.shtml? The from=& amp; Id= ID & amp; ProductId= to get more detailed information,
At the same time can visit http://search.gscloud.cn/geoms/geoms.shtml? The callback=jsonp_callback_13 & amp; Id= ID & amp; TableName=landsat_metadata get location information, example: http://search.gscloud.cn/geoms/geoms.shtml? The callback=jsonp_callback_13 & amp; Id=519192 & amp; TableName=landsat_metadata
CodePudding user response:
In addition the json dataid into http://imgs.gscloud.cn/pysvc/images/landsat_metadata/ /browse jpeg images can be obtained, example: http://imgs.gscloud.cn/pysvc/images/landsat_metadata/LE71330392014341EDC00/browse.jpegCodePudding user response:
Single page can take, no problem, but it isn't flip outCodePudding user response:
Can you write in popular points?Using the language, even if I read a book, also should be able to understand the kind of popular,
Very profound!
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