[req] follow me helix

[req] follow me helix

Postby solo » Wed Sep 07, 2011 7:04 pm

I'm not sure if this already exists, I have looked but not found anything (then again I have not looked that hard)

I'd like to add a spiral around a cable that is pretty free formed, normally I'd create the helix and use shape bender to create the shape but it only works on the red axis and the path I need it to follow is on all three axis.

Anyone know if there is something like this out there?

The above was the original request, and it was solved thanks to sdmitch.

Ruby can be found here: viewtopic.php?p=353348#p353348
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Re: [REQ] follow me helix

Postby mitcorb » Wed Sep 07, 2011 7:18 pm

I tried to construct a section of vine twining around itself using Tube Along Path, after constructing as you did, a welded series of spiraling segments. It is on a different computer than the one I am using. A method I used was setting up standoff segments "perpendicular" to the inner objects representing the radius of the vine, and connecting segments. Perhaps Follow Me and Keep? As far as helix around a helix, it hurt my head too much.
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Re: [REQ] follow me helix

Postby Rich O Brien » Wed Sep 07, 2011 7:21 pm

Use shapebender three times with your helix rotating between transformations. So in effect your bending occurs all on red axis but transforms globally.

Or Radial bending with FredoScale. Both these methods aren't absolute though since you assume certain bends.

Or download MOI or Rhino trial and do this there.

Another option is Tgi3D Warper tool locked in Parralell
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Re: [REQ] follow me helix

Postby TIG » Wed Sep 07, 2011 7:25 pm

Try ExtrudeEdgesByFace ?
You need to Weld the pseudo-helical path into a single curve [if it's not already one].
Then draw the circular face [or any shape for that matter***], flat on the ground [face orientation up/down is not important, ***if the shape is non-symmetrical it's green/Y-axis becomes the blue/Z-axis as it first starts to extrude].
Because you want the extrusion to be 'centered' you should also add a cpoint [guide] at the face's center.
Now select the face, the cpoint and the path-curve... and run the tool...

Spiral wire/pipe... done... :enlight:
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Re: [REQ] follow me helix

Postby solo » Wed Sep 07, 2011 7:25 pm

I need something like this, the spiral needs to follow this crazy shape, then afterwards I need to use follow me to take the helix path from line to mesh. :shock:
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Re: [REQ] follow me helix

Postby TIG » Wed Sep 07, 2011 7:27 pm

Can you post a simple SKP with the 'path' and suggested cross section circle...
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Re: [REQ] follow me helix

Postby solo » Wed Sep 07, 2011 7:28 pm

sure.
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Re: [REQ] follow me helix

Postby TIG » Wed Sep 07, 2011 7:30 pm

You posted your image after I posted... :?
You want to 'mutate' the helix along the path, then use FollowMe ???
Here's the pre-distorted path EEbyFace...
Capture.PNG
any :roll:
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Re: [REQ] follow me helix

Postby TIG » Wed Sep 07, 2011 7:33 pm

I think I understand what you now want...
The helix itself to be twisted along the distorted-path...
Then you do the FollowMe :roll:
Watch this space...
Think it CAN be done with ShapeBender... :idea:
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Re: [REQ] follow me helix

Postby solo » Wed Sep 07, 2011 7:35 pm

'randomly mutate'


Not sure what this means in SU terms, sounds like a Sci Fi term.

I guess the best way to describe what I need is telephone cord.
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Re: [REQ] follow me helix

Postby boofredlay » Wed Sep 07, 2011 7:39 pm

TIG wrote:Watch this space...

:bounce: He's working!!!!!! :bounce:
This will be a cool plugin for sure if it happens.
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Re: [REQ] follow me helix

Postby TIG » Wed Sep 07, 2011 7:44 pm

IF :roll:
that's IF! - not IF?
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Re: [REQ] follow me helix

Postby TIG » Wed Sep 07, 2011 8:16 pm

Here's a way of using ShapeBender with appropriately oriented/sized 'bits'; followed by Weld and then EEbyFace...
Capture.PNG
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Re: [REQ] follow me helix

Postby pilou » Wed Sep 07, 2011 8:34 pm

Allo ? ;)
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Re: [REQ] follow me helix

Postby sdmitch » Wed Sep 07, 2011 11:31 pm

Something like this?
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Re: [REQ] follow me helix

Postby Rich O Brien » Wed Sep 07, 2011 11:33 pm

You nailed it. Is it a plugin?
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Re: [REQ] follow me helix

Postby solo » Wed Sep 07, 2011 11:59 pm

sdmitch wrote:Something like this?


Exactly like that! :berserk:
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Re: [REQ] follow me helix

Postby sdmitch » Thu Sep 08, 2011 12:48 am

Yes it is a plugin. It is a little rough around sharp corners and may take a little trial and error to get the input parameters just right. Pre-select the centerline then run plugin. You are prompted for the radius of the helix, and the linear and angular increments.
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Re: [REQ] follow me helix

Postby solo » Thu Sep 08, 2011 1:07 am

:berserk:

Excellent.

Helix around bent helix:

helix around helix.png



Most appreciated mate.
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Re: [REQ] follow me helix

Postby mitcorb » Thu Sep 08, 2011 1:43 am

Congratulations, sdmitch, and thank you.
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Re: [REQ] follow me helix

Postby boofredlay » Thu Sep 08, 2011 2:40 am

Woah, great work Sam!
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Re: [REQ] follow me helix

Postby solo » Thu Sep 08, 2011 2:42 am

Eric,

That must have taken some time to 'follow me' :shock:
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Re: [REQ] follow me helix

Postby EarthMover » Thu Sep 08, 2011 3:52 am

Reminds me of the days before cordless phones! :lol:
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Re: [REQ] follow me helix

Postby boofredlay » Thu Sep 08, 2011 4:12 am

Ha ha, no Pete, I just changed the profiles of the lines to 5 and did a screengrab.
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Re: [REQ] follow me helix

Postby tridem » Thu Sep 08, 2011 8:34 am

:berserk: it works magic! Thanks sdmitch
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Re: [REQ] follow me helix

Postby numbthumb » Thu Sep 08, 2011 8:52 am

Thank you, sdmitch!
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Re: [REQ] follow me helix

Postby boofredlay » Thu Sep 08, 2011 3:51 pm

You know what Pete, it was late last night and I think I read your question wrong. It did take some time for the helix to follow that path. I thought you meant I did a pipe along path afterwards. Sorry.

This plugin is nice for making stitching. Just run it then scale the helix to almost flat. Around a curve might take some tweaking like I did for this one. I actually made the helix on one segment, scaled it "flat" then copied it around the curve. I am also finding out that the longer the helix the less responsive it is to moving or editing. Even though the straight line one is just that, a straight line, it was difficult to manipulate. Best bet is to do a short segment then copy it inside a group or component.
Anyway, enough of my rambling.
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Re: [REQ] follow me helix

Postby EarthMover » Thu Sep 08, 2011 3:54 pm

Perhaps change the OP to reflect [Plugin] and attach the script to the first post.
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Re: [REQ] follow me helix

Postby Jim » Thu Sep 08, 2011 9:04 pm

EarthMover wrote:Perhaps change the OP to reflect [Plugin] and attach the script to the first post.


But best to start a new post.
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Re: [PLUGIN] follow me helix

Postby ivreich » Fri Sep 09, 2011 2:49 am

cool plugin!

next step: allow the helix radius to change along center path according to target points. :mrgreen:

joel
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