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The matrix transform

  1. Jun 23, 2012 #1
    1. The problem statement, all variables and given/known data

    How to find the transformation matrix of Object B in world coordinates, when you know the transformation matrix of Object A in world coordinates and the matrix of Object B in Object A's
    local coordinates

    Please help!
     
  2. jcsd
  3. Jun 23, 2012 #2

    HallsofIvy

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    What do you mean by "A's local coordinates"?
     
  4. Jun 23, 2012 #3
    there are "World" coordinates and "Local" coordinates

    "Local" - object coordinates

    Object B is in another(Object A's) local coordinates

    Imagine Solar system

    It's center is the Sun(x,y,z is 0,0,0) and planets are moving around it's World coordinates. Earth has it's local coordinates and Moon moves around Earth in it's local coordinates

    We know Object B's (the Moon) position in Local coordinates(As if the Earth is the center of the Univers(0,0,0) but we don't know the World coordinates where the center is the Sun).
    And we know Object A's World transformation matrix

    How can I get the matrix transformation of "the Moon" in World coordinates, when we know it's position in local (relative to Earth) coordinates, and transformation matrix of Object A in World coordinates.

    Please. Help is needed!!!
     
    Last edited: Jun 23, 2012
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