How to rotate a dsc mesh 90 degrees?

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john71
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Joined: 10.08.2016
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How to rotate a dsc mesh 90 degrees?

Post #1by john71 » 07.01.2021, 16:20

Help!

How can I rotate a dsc nebula mesh a "normal" 90 degrees?

This data -> Axis [-0.679381 0.221716 -0.699488] Angle 196.475 is perpendicular.

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LukeCEL
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Post #2by LukeCEL » 07.01.2021, 23:10

Could you give some more details? In what direction do you want to rotate your model 90 degrees?

Topic author
john71
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Post #3by john71 » 08.01.2021, 08:33

This data (Axis [-0.679381 0.221716 -0.699488] Angle 196.475) places the mesh in the target galaxy (Milky Way), but the mesh has a wrong orientation. So the end result is perpendicular to the Milky Way plane.

I want to rotate the mesh 90 degrees to be on the plane of the Milky Way.

This is the mesh now:

l
l
l
_______ (Milky Way)

My target state:

_______ ________

Added after 6 minutes 26 seconds:
I cannot rotate the 3ds mesh in Anim8tor or Blender, so I have to use the same cmod mesh.

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gironde M
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Post #4by gironde » 09.01.2021, 09:09

see the Grant Hutchinson' tool : excel.zip (23KB, updated 16sep04)
https://www.classe.cornell.edu/~seb/celestia/hutchison/spreadsheets.html

the other tools on this page may also be useful to you (note the archive names are similar)

:hi:

Topic author
john71
Posts: 610
Joined: 10.08.2016
With us: 4 years 5 months

Post #5by john71 » 09.01.2021, 10:31

gironde wrote:see the Grant Hutchinson' tool

I cannot use the tool, because I don't understand the math. Someone should explain it with this data set and with this problem... :help:

Added after 2 minutes 14 seconds:
I know this is the problem: https://en.wikipedia.org/wiki/Axis%E2%80%93angle_representation


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