1503 Views 12 Replies Latest reply: Mar 12, 2012 6:45 AM by FrankS.Schiavone
157 posts since
Jun 18, 2007
Currently Being Moderated

## Just for fun:

You are handed a sphere and asked to find the radius. How many data points are required to find the radius, how would you then derive the radius from them and find the location of the radius relative to those points in Pro/E?
• 1 posts since
Jun 20, 2007
Currently Being Moderated
Jun 20, 2007 7:48 AM (in response to ptc-1181807)
Defining a sphere.
if one thinks about a 3-legged milking stool which will fit onto any surface or sphere, it follows that 4 points are needed to define a sphere
• 329 posts since
Nov 27, 2006
Currently Being Moderated
Jun 20, 2007 9:33 AM (in response to ptc-1181807)
Re: Defining a sphere.
Make a datum plane thru pts 1,2,3. Then sketch a circle thru the 3 pts on the datum plane. Uh... sketch a point at the center of the circle? Uh... make an axis thu the point normal to the datum plane? Do the same with another combination of the the 4 points, like say 2,3,4. where the axes intersect is the center of the circle. Maybe.
• 1,390 posts since
Sep 8, 2011
Currently Being Moderated
Mar 12, 2012 6:45 AM (in response to ptc-1181807)
Re: Just for fun:

Man, this is funny, I'd forgotten I'd started this under a different name way back in the day.  Interesting.

#### More Like This

• Retrieving data ...