Results 51 to 60 of 74
Thread: Need some geometry help
-
12-06-2014, 04:05 PM #51
Yes... This threw us for a loop. The equations specified at:
http://paulbourke.net/geometry/torus/supertoroid3.gif show these as the equations to generate the toriods:
supertoroid_equations.gifPerhaps 'fake' is the wrong word. I was trying to say 'not real'. Let's use the word 'imaginary'. I'm pretty confident that most math types would say these equations produce 'imaginary' numbers over part of the range when n1 & n2 are fractional powers.
So to my point, these equations did *NOT* generate the toriods shown at: http://paulbourke.net/geometry/torus/. You can not pick a fractional number for n1 & n2 and plot the points generated in real space as theta and phi vary from 0 to 2*pi.
In order to plot these functions in real space it required a redefinition of the pow() function to be something outside of what is commonly accepted as 'correct'.
The attached file handles most of the values for n1 & n2 and is written in OpenScad. Rather than modify the pow() function, this code generates the shape in the first quadrant where the equation's values are real and mirrors that to form the rest of the toroid.
Agreed....Last edited by Roxy; 12-06-2014 at 04:11 PM.
-
12-06-2014, 04:15 PM #52
- Join Date
- Jun 2014
- Location
- Burnley, UK
- Posts
- 1,662
-
12-06-2014, 04:33 PM #53
-
12-06-2014, 04:48 PM #54
- Join Date
- Jun 2014
- Location
- Burnley, UK
- Posts
- 1,662
-
12-06-2014, 05:09 PM #55
Are you really going to make square doughnuts?
-
12-07-2014, 12:50 AM #56
-
12-07-2014, 12:55 AM #57
In an egalitarian society such as we have in Australia, clothes do not maketh the man. Using an appellation that recognizes skill and experience is like tipping one's hat in respect. Any demand for such behaviour after the first encounter is rejected because here, Jack is as good as his Master.
OME
-
12-07-2014, 01:30 AM #58
- Join Date
- Jun 2014
- Location
- Burnley, UK
- Posts
- 1,662
It would be good if it were indeed like that but suits or no, Australians are the same as the rest of the world when it comes to business meetings and the use of titles on business cards and the like.
A Phd means you are part of the way to knowing more and more about less and less until ultimately you know everything about nothing.
-
12-07-2014, 03:02 AM #59Hex3D - 3D Printing and Design http://www.hex3d.com
-
12-07-2014, 03:52 AM #60
New to 3d printing looking for...
05-20-2024, 12:56 AM in Tips, Tricks and Tech Help