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Pivot point problem

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rick McNealyPivot point problem
by on Nov 15, 2005 at 10:29:31 pm

I can't seem to get the fap blades to spin on the z axis properly

here is a link:
http://clev17.com/~baseprod/rix/fan.mov

How do I set the pivot?

here is the illustrator file:
http://clev17.com/~baseprod/rix/fan.ai

I've read the manual...can't seem to get it right

Thanks


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sergeRe: Pivot point problem
by on Nov 15, 2005 at 11:39:24 pm

Hi,

Select your set in the Scene Preview window then click on "Recenter Pivot" in the set menu.

Salut.
Serge


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rick McNealyRe: Pivot point problem
by on Nov 16, 2005 at 4:06:37 pm

Thanks for the reply...the advice got me much closer...BUT it still has a small wobble

http://clev17.com/~baseprod/rix/fan_1.mov

Thoughts?


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VinnieRe: Pivot point problem
by on Nov 16, 2005 at 4:33:08 pm

sometimes I have to tweak it a bit by hand. Also your fan might not be perfectly symmetric.

good luck...pivot points tweak me out!!

vinnie


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DaveRe: Pivot point problem
by on Nov 17, 2005 at 2:50:17 am

Looks like the fan is not placed exactly 90 degrees perpendicular to the ground.


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sergeRe: Pivot point problem
by on Nov 17, 2005 at 5:21:32 am

Hi Guys,

Rick I had a look at your ai file. Your objects are not perfectly aligned so here is what you should do:
-First change your big circle to 323pt X 323 pt. It's now 321 X 323.6
-Select your layer1 in the layer palette and choose release to layers (Top right arrow), select the new layers and drag them out of layer1.
-Import in Invigorator using the "Import by layer" function.
-In the Set-Up window select all your objects and assign them to set (0)
-Select now the center of your fan (Filled circle) and assign it to set1 to make it the pivot point.
-Select all other objects, assign them to set1 and click OK.
-In the Scene Preview window select st1 and recenter the pivot.
Now animate and everything should be smooth.

If you have questions let me know.

Salut.
Serge


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rick McNealyRe: Pivot point problem
by on Nov 17, 2005 at 5:21:41 pm

thanks I'll give it a try


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Y.D.Re: Pivot point problem
by on Nov 18, 2005 at 12:20:54 am

This question is for Mr. John Dickinson.

When you have a 3 bladed fan like in this case, and using the 3D tracking method in AE, how do you anchor the controller to the fan so that the z-axis is exactly in the center of the round part of the fan?

As you know, thinking in terms of the fan in a square, the geometrical center would not be in the exact center of the fan because of the triangular shape.

Your help will be appreciated.


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sergeProject inside
by on Nov 18, 2005 at 1:44:19 am

Hi,

I think Jon is still in Japan so I answer for him this time. The blades are not important at all in this example. The little filled circle at the center is your pivot point in this case. So as long as you have it as the first object in a set, Invigorator will create a pivot point right in its center. Read my answer above to get a step by step.
Now if you attach your set to a 3D null you will see that it's automaticaly centered.

Here is a project:
http://www.nyc-visual.com/Fan.sit

Salut.
Serge


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Y.D.Re: Project inside
by on Nov 18, 2005 at 4:39:01 am

Hi Serge,

Thank you for the reply.
I forgot to mention that I'm on a PC.
I will try as you explained and let you know.



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Y.D.Re: Project inside
by on Nov 18, 2005 at 6:58:14 am

Hi again, Serge.

As I import the fan, the blades and the center are separate. In the Invigorator setup window, I can move the round shape to the center, but when I select the 3 blades together, I can't move that to the center to line up with the round object's center.

As I mentioned in my original post, the blades are bounded in a square but the actual center is not the center of the square boundary due to the triangular shape of the 3 blades together.

This is the part that I need clarification on. It could be something so minor, but at the moment, I am not finding an answer.

Thanks again.


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sergeRe: Project inside
by on Nov 18, 2005 at 2:46:14 pm

Hi Y.D,

The project I posted was also made using windows and is compatible with Mac as all AE projects. You just need to download Stuffit Expander for free.

I don't know why your blades come in "separate" Do you mean offset? However if you center all your artwork perfectly in Illustrator you should be able to import your ai file into Invigorator and have all your objects centered and ready to animate.
What version of Invigorator are you using?

Here is a project and ai file: (In Zip format this time)

http://www.nyc-visual.com/Fan.zip

ai file:

http://www.nyc-visual.com/Fan_2.zip

Salut.
Serge


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Y.D.Re: Project inside
by on Nov 19, 2005 at 12:27:48 am

[serge] "I don't know why your blades come in "separate" Do you mean offset?"

Hi Serge,

I meant that they all come in together, but they are separately selectable. So, there is no problem there.

I think I found the problem though. My fan did not center because I had gotten rid of the ring around the whole fan. This threw the whole thing off center because without it, the center of the fan would be off-center due to the triangular shape overall.

Thanks so much for your attention.


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