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Thread: Calculating eigen vectors from a set of points

  1. 01-17-2013, 12:00 PM #1
    jenny_wui
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    Calculating eigen vectors from a set of points

    I have a set of points. I would like to calculate eigen vectors for that point sets. Could any one help me how that can be done. Thanks.
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  2. 01-23-2013, 03:21 AM #2
    RigidBody
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    an eigenvector q is a vector which solves M*q=lambda*q with M being a matrix and lambda being a scalar value. i do not see any relation to a point set there.
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  3. 01-23-2013, 08:44 AM #3
    Ludde
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    Do you mean eigen-vectors that defines the orientation of the box that minimizes the volume wich enclosing the point cloud?
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  4. 01-23-2013, 11:45 AM #4
    jenny_wui
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    I meant that. I found VTK has an implementation of that vtkOBBTree.cxx. This helped me understand how to construct eigen vectors from a set of points.
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