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Applying identical free transform to second object?

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Stephan Hochmann
Applying identical free transform to second object?
on Jul 23, 2009 at 10:50:01 am

Please excuse my lack of techinical knowledge, I am trying to learn my way through AI via trial & error.

I think I understand what paths/anchors are used for and how basic perspective transform works (holding cmd/control and perhaps option and/or shift). I have an object that has already been distorted via Free Transform so that the perspective is changed. I have a logo I would like to add onto the surface of the object.

My assumption is to use Free Distort again, but how do I mimick the same distortions to the correct angles? I have experimented with grabbing corners of the bounding box and trying to snap them to corresponding anchor points of the background perspective shape...but it's not really working out.

What am I missing?

I've tried searching for perspective and free transform tool tutorials, but they mostly just show how to distort into a new perspective but not how to 'mimick' or align to an existing perspective.

Thanks!


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les nemeth
Re: Applying identical free transform to second object?
on Jul 23, 2009 at 10:49:30 pm

The free xform tool don't have an input method (eg number controls where you input the degree, etc) therefore once it's done it's done. You can only approximate another object to it by trial and error.

However, if you know the principles of perspective drawing, you can define the horizon, vanishing points and lines, and using them as a guide you can position/distort the new object which will approximate the distortion of the original object - again, by somewhat of a trial and error basis, but at least the vanishing lines provide as a guide.

There are also other ways to approximate, such as by distorting the object by a mesh, or using the 3D effect. Using the 3D effect for perspective distortion would be more correct, since it provides an input method, and therefore it's easy to recreate a specific transformation based on the original one.


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david Cabestany
Re: Applying identical free transform to second object?
on Aug 29, 2009 at 5:59:44 am

That's not entirely true, you can repeat any transformation you just performed exactly to the same values by hitting command D (Repeat Transform) right after the first transformation was done, so if you first create all your objects and then distort the first one, by scaling it, rotating it or using the free transform tool you can mimic the exact same transformation on the others by simply hitting command D, however if you do anything else in between, even just dragging one object or nudging it a bit then that last action will become the new transformation to mimic and you will have to distort manually again before being able to repeat the transform again.


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