MoI discussion forum
MoI discussion forum

Full Version: Summer exercice

Show messages:  1-6  7-26  27-41

From: AlexPolo
24 Aug 2020   [#27]
Similar project with same workflow for a dome I did a while back.
I used RHINO UNROLL Command to flatten all faces.





Attachments:
Space Dome SHEETS.3dm

Image Attachments:
dome sheets.JPG  DOME2.JPG 


From: Frenchy Pilou (PILOU)
24 Aug 2020   [#28] In reply to [#27]
3D world is a small planet! ;)


From: BurrMan
24 Aug 2020   [#29] In reply to [#26]
We have to be allowed to dice it up into more than 4 surfaces....

Attachments:
24_plans.zip

Image Attachments:
diced_more.jpg 


From: Frenchy Pilou (PILOU)
24 Aug 2020   [#30] In reply to [#29]
Ah that is a brilliant answer! Bravo...

You have the original structure Yes!
You fill the hole Yes!
You have only planes Yes!
You have not 4 planes but 8 so better twice! :)
And you have only quads Yes!

And there is an infinity of this solution! Excellent!
Burmann's Triangles wins ! ;) Bermuda Triangle ? :)


From: Frenchy Pilou (PILOU)
25 Aug 2020   [#31]
In situ



More flat


Complete



Now the best will be a little script or Elephant for automatise the down levels
or maybe a tricky use of existing functions (Loft, Sweep, NetWork...) for have directly plane surfaces from false surfaces! (dream :)
I have seen during this little exercise than NetWork has numerous parameters! (Uniform with number of Points...)

By hands it's 20 seconds for the last 4 top quads ;)

For this : here by hands its nothing for 12 quads but when you have 200-300 it's another story :)

It's true Quads "plane" built by external perimeter!


Not like that but...

From: Frenchy Pilou (PILOU)
29 Aug 2020   [#32]
Ultima days of summer! :)

Found a little trick...

Give a constant base angle...and so possibility to put any length to the segments
so not marvelous but..all faces are now planes! :)
https://moiscript.weebly.com/uploads/3/9/3/8/3938813/last_in_translation.3dm

All blue faces are planar!
Constant angle by row...red faces are not planes! Angle not constant on the red original surface!






Taking the same length for the segment than the red structure...but as the angle is constant by rows... at the end some is missing at the right side! :)


Right side faces are a little deformed but now all yellow volume is quasi wraped!

From: AlexPolo
4 Sep 2020   [#33] In reply to [#15]
Hi Pilou,

I am trying to make all faces on this structure coplanar as some are no trying to follow your process but how did you insert the intersecting lines from the junction points.




thanks
Alex.
From: Frenchy Pilou (PILOU)
4 Sep 2020   [#34] In reply to [#33]
You have different methods

Here is this one with the losanges...
one by one
Scale 3D the losange from center for overpass the 4 segment
Intersect (Trim) the verticals (or oriented, Normal etc..) with the 4 segments around the losange
PolyLine the 4 points



then...

With your 4 facets (FlowExtend Srf ? Very cool! )
https://moi3d.com/forum/index.php?webtag=MOI&msg=9747.21

Make boolean like this

Select 1 2 Call Boolean Isect 3 4 as "second object set"
(you can of course take more facets in a pass - in your case 7 vertical Quads selection)
that gives the 4 points for PolyLines then Planar...erase not wanted ...etc
But it's an hard work because only "manual"! ;)

For more easy use
Copy Move facets and then process else all will be a mess above the original! ;)
And be more precise than me on these speedy test! (top facet is not well aligned on the b corner! :)


From: Frenchy Pilou (PILOU)
4 Sep 2020   [#35]
You can ask "Show points" on the result of the Boolean operation!



and ask the native function by Press TAB and write ShrinkTrimmedSrf or make a shortcut
if you don' twant to see big larger of points ;) (maybe that lost some history (?) )

But not sure that is a good thing : more little mess than other! :)


From: AlexPolo
5 Sep 2020   [#36] In reply to [#35]
Hi Pilou,
Thanks for link for FLOW EXTEND SCRIPT another great script - I am trying to add the outer boundary 4 points as in your model whats the best process to add those are they just drawn upwards towards Z or are they aligned to the planes in that section.

Thanks again.



Image Attachments:
Capture.JPG 


From: Frenchy Pilou (PILOU)
5 Sep 2020   [#37] In reply to [#36]
These segments can be many things!
Normal to the center of losange then move in their 4 places for intersection with the future growing plane from the losange
Vertical Z...
Inclined to a groundbase for be aligned at something...
etc...
all this will give slightly different results for your Plane following that you want ...
From: AlexPolo
6 Sep 2020   [#38] In reply to [#37]
thanks again Pilou a manual process but logical will let you know how the project transpires hoping to make each panel a bolted together plate of steel.
From: AlexPolo
6 Sep 2020   [#39]
Hi Pilou,

Having trouble with this section of workflow - trying to get the intersection of the lines and the planar surface.


Make boolean like this

Select 1 2 Call Boolean Isect 3 4 as "second object set"
(you can of course take more facets in a pass - in your case 7 vertical Quads selection)
that gives the 4 points for PolyLines then Planar...erase not wanted ...etc
But it's an hard work because only "manual"! ;)


Image Attachments:
intersect.JPG 


From: Frenchy Pilou (PILOU)
6 Sep 2020   [#40] In reply to [#39]
The Boolean ISect are more for see and Keep Surfaces (or Volumes) Intersection!

So
By Default
Just select all lines
Call Trim
Click Plane
Points are shown for info to remove or not but hidden as soon as you valid the Trim!

Re-select the Lines and ask Show Points if you want to see them again for any reasons!
...

so with your file




From: AlexPolo
6 Sep 2020   [#41] In reply to [#40]
thanks for you input Pilou much appreciated will send progress updates as it materialises.

Show messages:  1-6  7-26  27-41