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What is the correct approach to draw map grid?

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  • What is the correct approach to draw map grid?

    Hello.

    Could you, please, explain, what is the correct approach to develop map grid on the globe?
    I need to make different grids which change its level of details, depending on map scale (altitude of camea).
    Basically I can calculate core points of grid for all earh and then create few thousands of Paths. But I understand it is not correct. Thats why I have two questions:

    1) How to determine what globe aria is visible to user?
    2) How to draw missed parts of grid when globe is rotated?
    3) How to determine change of camera elevation to redraw new level of grid details?

    Thanks.

  • #2
    Sorry, I found answer https://worldwind.arc.nasa.gov/?root...wtessellation#

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