Some continuation on my previous posting on transformation
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Thread: Some continuation on my previous posting on transformation

  1. #1
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    Some continuation on my previous posting on transformation

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    Hello, this is some continuation of my previous posted topic on transformation. I have attached two pictures of rotation of different axes, i.e. X, Y and Z. Z rotation is the projection on XY plane for two different Z rotation. It shows how the length of the axis varies depending on Z rotation. Now my question is, from this information is it possible to figure out rotation of Z axis. Here as rotation is on XY plane, the length of X and Y axis does not vary, but that of Z-axis varies.

    Thanks in advance.

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    VictorN is offline Super Moderator Power Poster
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    Re: Some continuation on my previous posting on transformation

    Quote Originally Posted by jenny_wui View Post
    ... Z rotation is the projection on XY plane for two different Z rotation. It shows how the length of the axis varies depending on Z rotation.
    Your definition of "rotation" is not clear! How would it be that "Z rotation is" something "for two different Z rotation"?
    Victor Nijegorodov

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    Re: Some continuation on my previous posting on transformation

    As this isn't specifically a c++ question, you might get more guidance if you posted to the Algorithm forum.
    All advice is offered in good faith only. You are ultimately responsible for effects of your programs and the integrity of the machines they run on.

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    Re: Some continuation on my previous posting on transformation

    If what you mean is... from a given projected image (result) and a given input model figure out the amount of rotation along each axis:
    then no this isn't unambiguously solvable for all possible input cases.

    In the 3D to 2D projection phase, information is being lost.

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