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3D Geodata conversion - Macromedia Flash Data Integration

I'm working on a mapping application that imports latitude and longitude data and plots it onto a 3D globe. Does anyone have experience with this? I'm not sure what the best solution to my problem is. You can see and download the code base from the open-source project here: [url]http://code.google.com/p/meadanglobe/[/url] I'm successfully plotting points onto the 3D surface of the globe, yet the translation of latitude and longitude does not seem accurate in more than one respect: 1) not oriented relative to the image of the globe, and 2) each node is not positioning correctly relative to each other (for ...

  1. #1

    Default 3D Geodata conversion

    I'm working on a mapping application that imports latitude and longitude data
    and plots it onto a 3D globe. Does anyone have experience with this? I'm not
    sure what the best solution to my problem is.

    You can see and download the code base from the open-source project here:
    [url]http://code.google.com/p/meadanglobe/[/url]

    I'm successfully plotting points onto the 3D surface of the globe, yet the
    translation of latitude and longitude does not seem accurate in more than one
    respect: 1) not oriented relative to the image of the globe, and 2) each node
    is not positioning correctly relative to each other (for example "Rome" and
    "Johannesburg" are right next to each other--when they should be thousands of
    miles apart!)

    I am using very standard translation method which I found here:
    [url]http://board.flashkit.com/board/archive/index.php/t-666832.html/[/url]

    Here is the code:









    xPos = app.radius * Math.cos(longitude) * Math.cos(latitude);
    yPos = app.radius * Math.sin(longitude) * Math.cos(latitude);
    zPos = app.radius * Math.sin(latitude);

    miquael Guest

  2. #2

    Default Re: 3D Geodata conversion

    Here's a link to the resource again (for some reason the one above does not direct properly):

    [url]http://board.flashkit.com/board/showthread.php?t=666832[/url]

    miquael Guest

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