ModisDownload 2.1

help download modis files with token and multi threading processing

1 ModisDownload

help ours down load from base url https://ladsweb.modaps.eosdis.nasa.gov/ when i use this packages , our bandwidth work in deadline with the first version we can use this download all modis file with any time in any area use like this

2 Example code

2.1 Query Productions

We can query productions which can be downloaded by our API or get from {your ModisDownload package install directory}/temp/sensor.csv

# search products which can be downloaded
from ModisDownload.Visited import search_p

if __name__ == '__main__':
    search_p()

2.2 Query Area Names

We can query productions which can be downloaded by our API or get from {your ModisDownload package install directory}/temp/country.json

# search products which can be downloaded
from ModisDownload.Visited import search_area

if __name__ == '__main__':
    search_area()

2.3 Download products

# download data main class
from ModisDownload.Visited import GetHtml

if __name__ == '__main__':
    # get your token in https://ladsweb.modaps.eosdis.nasa.gov/#generate-token
    token = "your token can be found in https://ladsweb.modaps.eosdis.nasa.gov/#generate-token"

    # init download main class
    obj = GetHtml()

    # set your product name
    product_name = "Mod04_3k"

    # set your query dates
    # query one day use 2020-01-01
    # query dates use start_time..end_time like 2021-01-01..2022-01-01
    # query multi dates like 2020-01-01,2021-01-01..2022-01-01,... and so on
    query_dates = "2020-01-01,2021-01-01..2021-02-01"

    # query area can use name of country or longitude and latitude
    # county like china or other names,you can see all names by search_area() in ModisDownload.Visited
    # area by longitude and latitude like
    # (longitude,latitude)
    # (a,b) ----------
    #       -        -
    #       -        -
    #       -        -
    #       ---------- (c,d)
    # area like xayb,xcyd
    area = "x120y40,x140y20"

    # download files save directory
    save_dir = "./download"

    # thread number default 5
    thread_num = 5

    # max try number if your net close download will be shutdown,
    # so we will retry some time to make sure download success,default max try number is 10
    max_try = 10

    # if you use proxy you should set you proxy port if port is None not use proxy default port is None
    port = None

    # chunk size is stream I/O size don't change
    chunk_size = 1 << 20

    # download main function
    obj.download_main(sensor_name=product_name, dates=query_dates, area=area, download_dir=save_dir,
                      thread_num=thread_num,
                      max_try=max_try, port=port, chunk_size=chunk_size)

    # only need download urls
    obj.download_main_url(sensor_name=product_name, dates=query_dates, area=area, download_dir=save_dir,
                          save_dir="your downloads urls save path")

2.4 Update ModisDownload

update productions names and area

# reinit package
from ModisDownload.Visited import reload

if __name__ == '__main__':
    reload()