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Thread: ATDI map

  1. #1
    Senior Member Reputation: 297
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    Default ATDI map

    Has anyone tried extracting just a certain region's map from the maps provided by ATDI? I needed Nepal's DTM, which is available in Tibet-China dataset in ATDI's map.
    I have tried Global mapper with ATDI plugin without any success. Any help would be highly appreciated.

    Here's the link of ATDI map
    Code:
    http://data.atdi-group.com/cartography/tibet_20m.zip
    Thanks

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  3. #2
    Senior Member Reputation: 1429
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    Default Re: ATDI map

    These maps are projected China(Lambert)CHLAM. May be somebody knows the parameters of this projection ?

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  5. #3
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    Default Re: ATDI map

    A search for China Lambert at https://spatialreference.org gives 3 results with this being the most likely one https://spatialreference.org/ref/sr-org/6959/ that page has a .PRJ file you can download and use in Global Mapper. Hope that helps.

    BR's, Stan.

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  7. #4
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    Default Re: ATDI map

    Quote Originally Posted by Stantheman View Post
    A search for China Lambert at https://spatialreference.org gives 3 results with this being the most likely one https://spatialreference.org/ref/sr-org/6959/ that page has a .PRJ file you can download and use in Global Mapper. Hope that helps.

    BR's, Stan.
    I have tried projections from that site, but it didn't result in accurate output. I'll give it a shot once more as I could be doing something wrong.

    Thanks a lot

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