How to do 3D spherical ribbon spiral? 2

[parkerbrown]

I need to make a three dimensional ribbon round around an invisible sphere - kind of like the ribbon here:

http://www.unm.edu/~cwootton/mcescher.jpg

Is there any way illustrator CS can do this accurately ? I've yet to find a "sphere" tool in the 3d menu.

Thanks!

 

[itchybug]

parker:

I did this one a while ago as part of the answer to another user's question:

It's made by drawing a circle, then deleting the left anchor, then you have half a circle left, give that a white stroke, no fill, and Effect>3-d>Revolve. Now, you have a sphere.

Next, you need to map a symbol to this sphere to make it look like a peel:

Draw a fairly long, narrow rectangle, copy it and move down a bunch of times (with some space in between), then, with the direct select tool, select the rightmost anchors on all the rectangles at once. Drag them up so that the top anchor of the second rectangle lines up with the former position of the top anchor of the top rectangle. What you're trying to do is make it so that if you printed the result, and wrapped it around, a long spiral would form, with each revolution climbing exactly one rectangle's worth.

Now, make this into a symbol, and map it to the outer face of the sphere. You will need to turn on "invisible geometry" to make the sphere itself invisible.

HTH

Bert

Bert Philippus -

http://www.itchybug.com

 

[parkerbrown]

Thanks for the thorough tips. I actually stumbled upon how to make a sphere by accident.

But I'm not sure where to find the "map to sphere function" or the "invisible geometry" function. Could you please point me in the right direction?

 

[parkerbrown]

Ignore my previous post - I worked it out.

Thank you, thank you, thank you - that is amazing! I'm going to have to look into Illy's 3D feature in more depth now.

Any online tutorials that you might know of?

thanks!

 

[itchybug]

Parker:

Nope sorry don't use tutorials much.

Bert

Bert Philippus -

http://www.itchybug.com