Hi, perhaps you may help me.
My intention is to wrap a text aroud a zylinder or spline circle.
Is this possible?
Kind regards, Mala...

Use the Flow Function for all these !
Scroll it because it's a large subject! ;) (your specific ask is very well documented! :)
http://moi3d.com/3.0/docs/moi_command_reference8.htm#flow

Here Volumes to curve but of course Surface to Surface, Volume to Volume etc... is possible!

The length of the line needed for the flow can be helpful.
Unwrap curve, for length can be helpful.
PI * diameter of circle, times a fraction, can be helpful.

- Brian

Sometimes a surface (e.g. rectangle plane,) or two, are used, instead of lines/ curves.

Smart very cool and helpfool. Must go to bed. Try it our tomorrow and give feeback, cheers, Mala. Kiss...

Hi, I tried it out and I need that kind of operation. But I fail...hmmm´, sure it´s very simple. But also did not find a youtube video...Mala

Hi Lara, can you please upload a .3dm file with the objects that you tried with?

Thanks, - Michael

If one were to say your text is "standing up" on the base curve, then you might try to "lay it down"...

Hello, thanks for your offer to take a look at the file.
What I did not understand in the tuts was: select the baseline of the font. I didn´t see a font baseline.
Best Mala

Hi Lara (Mala),

The base line (or base surface), is created by the user to guide the placement of the text.
For your torus surface case, the base should (most likely) be a base surface.

So make a plane in proximity to your text. The plane is the base surface.

So the user may have to do some math to get the size of the plane rectangle, versus the surface dimensions of the torus, to guide where the text is "flowed" to. This is where unwrap of the two radii of the torus could help with plane dimensions times desired fraction. Also PI * 2* some radius could help.

Sizes of base line or surface, and placement at a base of the text, (Either the bottom of the letters, or the backside surface of the letters,) and point selected on torus, all influence the final result.

- Brian

Like Burr says, the text can be lying on top of the base surface, or standing on top of the base surface...( or base line)

Think of the base surface and the text being made of stretchy or compressible rubber. Consider the text as lying down on the rubber sheet. The Flow command does some math, translations, scaling, rotation, alignment...
The base surface is stretched and curved to match a section of the torus, and the text stretches to match.

- Brian

The user may want to cut out a section of the torus where the letters are to be located, and unfold the dimensions, (like unwrapping), to make the base suface, with a copy to be placed below the text. The target of the flow is the unwrapped section of torus. This would preserve some of the spacings.

The torus section could be a section of its outer semi-circular surface...

Hi Mala,

Here is a picture of the required steps.
I hope it is of some help to your question.

Michel

Edit Pilou suggestion made me realize it was simpler to do it in one step, by unwrapping the whole torus.
You will get a plane of the size of the ring, and it will be easier to place ornaments on the surface.
Here is a second picture (the one with the grid) showing the process and a tip on how to move the seam of a torus.

Michel

Another cool method!

Draw any surface on your cylinder (trim it)

Now you can Flow anything you want! :)

Maybe sometimes orient your letters + base Surface (here perpendicular) before the Flow! :)

Et voilà :)

Hi Mala, please let me know if you are still stuck.

- Michael

Very nice method.
Let MoI do the math whenever possible.
- B

Hello,
not ready, but I checked the concept.
Thank you very much for your kicks...

Cheers, Mala

I do not often work with moi. But if I do, I cannot believe what you can do with it....my deepest thank you, Michael (and to all you, kind, friendly and constructive folks...)

Hi Mala, is that going in the direction that you wanted? If not please post the .3dm file with the objects in it so I can show you where you need to click to control the alignment for surface to surface flow.

- Michael

Ok - i got problems with the 3-axis-cnc machine where I intend to produce the ring. The idea is to make it with a polyline of the font. I created it. But...I cannot bend it on the surface. Is it possible that polylines cannot be formed on a bended plane?

Why not...

As you can see font is just curvated along the curve
so just take surface(s) as start and target and you will obtain perfect fit in all directions! ;)

Meanwhile it it clear. Tried it with a base line. Failed. With a base plane it works...

Thanks Pilou. But it is not wrapped...or just not ready?