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-   -   Finding angles of a pigeon (https://www.askmehelpdesk.com/showthread.php?t=125678)

  • Sep 4, 2007, 05:16 AM
    kashfiiqb
    Finding angles of a pigeon
    Hi everyone, I have a queston:
    Consider a gun fixed on a ground. The gun can move horizontally within some range of angles and vertically within some range of angles, thus it makes a cone in air which is its effective fire area. It means that it can target a pigeon in the air if the pigeon is within its cone area.

    known things: x,y coordinates of the pigeon and its height above the ground
    x,y coordinates of the gun and its height above the ground
    unknown/To Find: is the pigeon in the cone's area of the gun? Or is the pigeon in the area that the gun can hit it?
    if I draw the pic, it would be something like this:


    Pigeon(x2,y2,h2)
    /
    /
    /
    /
    /
    /
    GUN(x1,y1,h1)


    whereas the gun's cone would look something like this:

    \ /
    \ /
    \ /
    \ /
    O
    GUN(x1,y1,h1)


    well for simplicity, I have made the cone vertically above, but it may be at side, like at 45 degrees from the ground... hope it helps u in imagining the problem.
  • Sep 4, 2007, 05:18 AM
    Capuchin
    Why a cone? Why not a pyramid?

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