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April 5, 2015, 22:45 |
rotation axis origin and direction
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#1 |
New Member
Yoon
Join Date: Mar 2015
Location: Seoul
Posts: 22
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HI, I got a problem on making rotating wheel.
I set rotation origin as (3, 2, 5) and the rotating axis Parallel to z axis. so, how can i set rotation direction?? It suppose to be (3, 2,7) ???? or just (0,0,1) need your help |
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April 6, 2015, 06:19 |
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#2 |
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Cees Haringa
Join Date: May 2013
Location: Delft
Posts: 607
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If rotation is around the z-axis, your axis should be (x y z) = (0, 0, 1).
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April 6, 2015, 06:48 |
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#3 |
New Member
Yoon
Join Date: Mar 2015
Location: Seoul
Posts: 22
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thank you for answer.
rotation axis is not z-axis but the axis parrellel to z-axis then rotation direction should be (0,0,1)??? not (3,2,7)??? |
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April 6, 2015, 07:12 |
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#4 |
Senior Member
Cees Haringa
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Location: Delft
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yes, because you already give the origin coordinates, so if you use origin (3,2,5) with axis (0,0,1) the axis will be parallel to z, but not on z.
If you would use (3,2,7) as axis direction, it would not be aligned with z at all, instead pointing away from it slightly in the positive x and y direction. |
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April 6, 2015, 07:22 |
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#5 |
New Member
Yoon
Join Date: Mar 2015
Location: Seoul
Posts: 22
Rep Power: 10 |
then ,my problem solved now
thank you! best regards |
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April 6, 2015, 07:34 |
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#6 |
Senior Member
Cees Haringa
Join Date: May 2013
Location: Delft
Posts: 607
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Glad to be of help!
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