View Single Post
Old 06-12-2018, 01:19 AM   #726 (permalink)
freebeard
Master EcoModder
 
freebeard's Avatar
 
Join Date: Aug 2012
Location: northwest of normal
Posts: 11,593
Thanks: 2,682
Thanked 3,745 Times in 2,968 Posts
My personal thoughts turn to modelability. How accurately can you define the surface? The solution seems to be a octahedral-based geodesic structure.



If you like I can show* the progression from a sphere, to a 30/70 front-rear split, cross-section that is prolated above the equator and oblated below and flat-bottomed, with an overall resemblance to a humped-backed Dymaxion.

This relies on a linear transformation fore and aft of 'center'. With added complexity you could have a non-linear transform produce a reflex curve and stinger tail. The handful of data points that definehttp://ecomodder.com/forum/showthrea...tml#post373749 the [un-mirrored] half shape can still be calculated to as many decimal point as you require.

Further transformation. I haven't found a way to apply this to the octahedral geodesic, but it could probably be done station-by-station. A squircle can be anywhere between a square and a circle.



This can resolve packaging issues, like windshield headers without upper corners, and etc. The subject is covered here:

http://ecomodder.com/forum/showthrea...ion-23333.html

edit:
*Permalink #29
__________________
.
"All my life I wanted to be someone; I guess I should have been more specific." -- Jane Wagner
_________________

Last edited by freebeard; 06-12-2018 at 01:48 AM..
  Reply With Quote
The Following User Says Thank You to freebeard For This Useful Post:
aerohead (06-13-2018)