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  1. #1
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    Default The former World Trade Center in New York discussion

    This is a discussion thread for the following file:

    The former World Trade Center in New York

    The WTC towers as they stood until September 11th, 2001.



    Credit: equitus at bbs.keyhole.com


  2. #2
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    I'm sorry to resume this old thread but I choose so rather than to open a new thread.

    The problem I see with this file about the world trade center is that it isn't so precise.

    I looked for the geographic data into the file, and i found these values for the 8 edges of the two towers:

    WTC1 (longitude,latitude):
    A -74.01372912996717,40.71260764725424
    B -74.0137005548784,40.71260985241289
    C -74.01303205713893,40.71231182094332
    D -74.01302304157183,40.71228940708439
    E -74.01337274627421,40.71184417111287
    F -74.01340526868839,40.71183868504868
    G -74.01407060957935,40.7121373075252
    H -74.0140790328641,40.71216046745134

    WTC2 (longitude,latitude):
    I -74.01358371829376,40.71149350945164
    L -74.01354665686255,40.71150288043829
    M -74.01288376382151,40.71120124360745
    N -74.01287412871099,40.71117644432115
    O -74.01322478970275,40.71072951984284
    P -74.0132563135176,40.71072370206463
    Q -74.01392116370612,40.71102624036947
    R -74.01393003162406,40.71104865011551

    or also better:

    WTC1 (longitude,latitude):
    A W 74░00'49.424867881812" N 40░42'45.38753011526396"
    B W 74░00'49.32199756224" N 40░42'45.39546868640414"
    C W 74░00'46.91540570014801" N 40░42'44.32255539595204"
    D W 74░00'46.882949658588" N 40░42'44.24186550380426"
    E W 74░00'48.141886587156" N 40░42'42.6390160063319"
    F W 74░00'48.258967278204" N 40░42'42.61926617524807"
    G W 74░00'50.65419448566" N 40░42'43.69430709071992"
    H W 74░00'50.68451831076" N 40░42'43.77768282482378"

    WTC2 (longitude,latitude):
    I W 74░00'48.901385857536" N 40░42'41.37663402590391"
    L W 74░00'48.76796470518" N 40░42'41.41036957784394"
    M W 74░00'46.381549757436" N 40░42'40.32447698681992"
    N W 74░00'46.346863359564" N 40░42'40.23519955613992"
    O W 74░00'47.6092429299" N 40░42'38.62627143422429"
    P W 74░00'47.72272866336" N 40░42'38.60532743266788"
    Q W 74░00'50.116189342032" N 40░42'39.69446533009204"
    R W 74░00'50.148113846616" N 40░42'39.77514041583603"

    I changed these coordinates into UTM coordinates (NAD83 ellipsoid) and i got these coordinates (cartesian):

    WTC1:
    A E 416693.2468035915 N 4507322.410337737
    B E 416690.83588134707 N 4507322.682228021
    C E 416633.997683971 N 4507290.233113709
    D E 416633.20819816703 N 4507287.753588555
    E E 416662.19190224883 N 4507237.997668712
    F E 416664.93218560563 N 4507237.357822781
    G E 416721.5047205809 N 4507269.875774224
    H E 416722.24507889734 N 4507272.438688106

    WTC2:
    I E 416679.57526734204 N 4507198.87182168
    L E 416676.45640530234 N 4507199.947219182
    M E 416620.0861504688 N 4507167.09266733
    N E 416619.24134002463 N 4507164.348934275
    O E 416648.3041372371 N 4507114.40463271
    P E 416650.9597001741 N 4507113.728907669
    Q E 416707.49665151315 N 4507146.681908837
    R E 416708.2736485149 N 4507149.1611246625

    Using these data I drew the plan of the two towers and I realized something that, at first, I didn't realize: the two plans are not square!

    All this was a wasted effort since I could look the two towers with google earth from an high point of view. I did this and really the two plans are rectangular.

    This is a problem since the plans should be two perfect squares of 63,13 m (207' 2") with rounded corners.

    Is there anyone of you that knows how it is possible to find the correct geographic coordinates of the towers' edges?

    Looking around I found this awesome 3D virtual (interactive) reconstruction of the World Trade Center:
    3D WTC

    Thanks in advance for your answers

  3. #3
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    Default Loading this in Linux Crashes Google Eath to Desktop

    ????? under Ubuntu 6.1

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