How to make a Zoetrope ?

Replies to This Discussion

Permalink Reply by Hyungsoo Kim on November 6, 2017 at 7:31am

Hope it helps..

Attachments:

• Zoetrope_re.gh, 34 KB

Permalink Reply by Joseph Oster on November 6, 2017 at 8:06am

I think you lost the relative vertical offsets between the body shapes.

Permalink Reply by Hyungsoo Kim on November 6, 2017 at 10:31am

I don't know why that is important, but if it's needed, fixing is simple.

Attachments:

• Zoetrope_reV2.gh, 40 KB

Permalink Reply by Joseph Oster on November 6, 2017 at 10:36am

I don't know why that is important...

Because the figure is in motion, jumping off the ground!

Permalink Reply by Joseph Oster on November 6, 2017 at 8:01am

One of the tricky bits with this one, both in orienting the body shapes and making a surface from them, is that some of them (3 of 8) consist of multiple curves.  This image shows the code that orients the shapes; connecting the 'X' vector instead of the 'Y' vector to 'Orient dA' puts them jumping around the circle instead of into it.

And this code ungroups the body shape curves, selects the outer one only and attempts to 'Sweep1', which fails...  'Loft' works with the right loft options: 'Closed Loft' and 'Rebuild' - you might want to play around with those.  'Mesh Brep' will convert this lofted surface to a mesh.

Attachments:

• Zoetrope_2017Nov6a.gh, 15 KB

Permalink Reply by Louis Dupleix on November 6, 2017 at 8:42am

Thank you very much Joseph ! I managed to make "Sweep1" work by setting "Point on curve" to 1.

Now if I bake the mesh is it ready to be 3D printed ?

Thank you again !!

Attachments:

• zoetrope.3dm, 653 KB
• Zoetrope.gh, 5 KB

Permalink Reply by Joseph Oster on November 6, 2017 at 8:59am

Cool.  Kinda of a mess though, eh?  Not as clean as 'Loft'.  Will anyone recognize the body shape profiles hidden within?

Not sure why you re-posted the .3dm and .gh files?  Esp. the GH file, because it's empty.

P.S.  'Rebuild' the curves before 'Sweep1'/'Loft' helps.

Permalink Reply by Louis Dupleix on November 6, 2017 at 9:25am

Yes it's a mess aha. But your help is awesome ! I need it to be a mesh to print it as a mesh.

Here is the right .gh file, my mistake i put the old one.

Attachments:

• zoetrope.3dm, 26.6 MB
• Zoetrope.gh, 16 KB

Permalink Reply by Louis Dupleix on November 6, 2017 at 11:52am

In fact, I need to have a solid wireframe from this surface like this. It is the last step. After that it is done !

Permalink Reply by Joseph Oster on November 6, 2017 at 12:36pm

You can use isocurves from the lofted surface.  Meshes are so messy.  :)

By the way, the 'V' curves (blue) are interpolated versions of the body shape curves... A straight line instead of a circle is interesting too.

Attachments:

• Zoetrope_2017Nov6b.gh, 25 KB

Permalink Reply by Joseph Oster on November 6, 2017 at 1:22pm

'Sweep1' using rebuilt curves looks better than 'Loft':

Attachments:

• Zoetrope_2017Nov6c.gh, 31 KB

Permalink Reply by Louis Dupleix on November 6, 2017 at 2:22pm

Amazing Joseph you rock ! Thank you very much !

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