Project helix on surface, looking for script

[liquid98]

post edited with images

Hi,

I'm trying to project a helix on a surface.

I combined the structure of lines created by the rubyscript grow.rb

with a shape:

and then by hand connect all intersecting lines to a helix and delete
the remaining lines:

so what I'm looking for is a script that connects intersection points
of lines with a surface:

Is there a script known that can accomplish that?

Thnx in advance

[Chris Fullmer]

The images aren't showing up. I think I need to see them to understand better

Chris

[thomthom]

Upload the images along with the post instead of to a image hosting system.

[Gaieus]

Hi Liquid,

I'd rather draw a helical ramp (or call it anyhow) and then intersect the face of the jar (or what it is) with this ramp. Note that the ramp is a group in my attached model so you can easily hide/erase it afterwards and only keep the intersection lines nicely added to your surface.

And the skippy (helix_13.rb and skin.rb was used to create the helical ramp)

HelicalIntersection.skp

[liquid98]

Thank you, well done!

only thing is: skin.rb does not work for me on a helix formed line,
is there something I should think about? (Settings? version of skin.rb?
grouped? slice amount????)

(edit)I figured it out myself.. tnx so much!

Thanks

[liquid98]

Now for the next challenge:

I projected a double helix on my vase:

now I want do delete the small strip :

but i can only select one piece at a time

is there a solution?

---

vase small

[Jim]

I did it using a snippet of Ruby - please go over this to make sure it's what you want, and to make sure the script didn't miss anything.

---

vaasklein[jf].skp

[liquid98]

Hi Jim,

Very nice, this is indeed exactly what i want...