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lvl10720-Turquoise
20-Turquoise
Oct 20, 2022 5:41 PM UTC
Question

Rotate around arbitary-axis in 3-D ?

Hi, Everyone.
From the following:

I.PNG

II.PNG

 

The Question 1: How to Rotate A around BC-axis with angle t ?
The Question 2: How to Rotate B around CD-axis with angle t ?

 

Thanks in advance for your time and help.
Best Regards.
Loi.

 

29 replies

ppal_25568718-Opal
18-Opal
Oct 20, 2022 10:40 PM UTC

See if this helps

 

https://community.ptc.com/t5/Mathcad/How-to-plot-a-point-in-3-D-and-Rotation-of-the-point/td-p/699363

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    Werner_E
    Werner_E25-Diamond I
    25-Diamond I
    Oct 21, 2022 12:18 AM UTC

    Look for yourself

    https://tinyurl.com/3s87jv48

    I'd suggest using homogenous coordinates (quaternions) as with them you can describe a translation by a multiplication with a matrix.

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      lvl10720-TurquoiseAuthor
      20-Turquoise
      Oct 21, 2022 12:39 AM UTC

         Many thanks, Ppal amd Werner. The following: the question 1 was solved.

      III.PNG

       

      Best Regards.
      Loi.

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      terryhendicott
      terryhendicott21-Topaz II
      21-Topaz II
      Oct 21, 2022 2:13 AM UTC

      Hi,

      Here is a file from earlier on the community.

      It has a function that uses quaternions to do the rotation.

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