- #1
CraigH
- 222
- 1
Hi all,
How can I calculate the minimum distance between the perimeter of a disk in 3d space and a point above the disk? (the point can be inside or outside the area above the disk)
I've been trying to work this out for a while, but I'm getting no where.
For example, a point at (1,1,1) and a disk with center (0,0,0) and radius 0.5. The distance between the centers is:
[tex]\sqrt{(1-0)^{2}+(1-0)^{2}+(1-0)^{2}} = \sqrt{3} \approx 1.73[/tex]
But how can I work out the shortest distance from the point to a point on the perimeter of the disk?
Thanks!
http://imageshack.us/a/img838/5558/aujg.jpg
How can I calculate the minimum distance between the perimeter of a disk in 3d space and a point above the disk? (the point can be inside or outside the area above the disk)
I've been trying to work this out for a while, but I'm getting no where.
For example, a point at (1,1,1) and a disk with center (0,0,0) and radius 0.5. The distance between the centers is:
[tex]\sqrt{(1-0)^{2}+(1-0)^{2}+(1-0)^{2}} = \sqrt{3} \approx 1.73[/tex]
But how can I work out the shortest distance from the point to a point on the perimeter of the disk?
Thanks!
http://imageshack.us/a/img838/5558/aujg.jpg
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