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# Doctor61

13 total contributions since 2012

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Question

intersection between two cones
I have two circles with centre coordinates c1(x1,y1,z1) and c2(x2,y2,z2) and their radii r1 and r2, respectively.Both of the cir...

4 years ago | 1 Answers | 0

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Responded

Re: Intersection between two cones
Thanks Bill, but I do not get your method. You said "Cone is intersection of spheres a^2 (d^2+r^2)=x^2+y^2+z^2 and

4 years ago | 4824 views

Responded

Re: Intersection between two cones
Hi Bruno, I have actually thought about something like what you described, but I don't know how to implement it in matlab. I th...

4 years ago | 4824 views

Responded

Re: Intersection of a Line and Circle in 3D Space
I happen to have the same problem, and I wonder how this question was not clear to John. This problem is when you have the circl...

4 years ago | 6012 views

Question

How to determine if two cones with vertices at origin, intersect?
Suppose I have two different sets of data points in 3d, that each are in a different tilted plane (different theta,phi,r of norm...

4 years ago | 1 Answers | 0

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Posted

Intersection between two cones
I have two 3d circles (centre coordiantes and radii) with their normals passing through origin. If you consider the origin to be...

4 years ago | 4824 views

Question

Finding a circle enclosing data points in a tilted plane
My input is x,y,z coordinates of some data points lying in a tilted plane. I am trying to find a way to compute the minimum ra...

4 years ago | 1 Answers | 0

### 1

Question

How to circumscribe an elliptical shape to a set of points in 3D?
I have the cartesian coordinates (x,y,z) of set of points that are distributed in a region of space that could be circumscribed ...

4 years ago | 2 Answers | 1

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Question

How do I create orthogonal basis based on two "almost" perpendicular vectors?
I am trying to create an orthogonal coordinate system based on two "almost" perpendicular vectors, which are deduced from medi...

4 years ago | 3 Answers | 0

### 3

Question

Global coordintes to local (not on Matlab 2012!)
Hey, I have been searching for a way to be able to define spherical coordinates of the points in a XYZ matrix, based on a l...

4 years ago | 1 Answers | 0

### 1

Responded

Re: directory permission denied warning
No the problem is I am logged in as another user and this user was a previous user of this computer. I don't have the admin priv...

4 years ago | 11325 views

Posted

directory permission denied warning
I use Matlab in a networked computer with previous users and when I open Matlab at the startup it gives me a list of warnings re...

4 years ago | 11325 views

Question

MATLAB Warning message
I use Matlab in a networked computer with previous users and when I open Matlab at the startup it gives me a list of warnings re...

4 years ago | 1 Answers | 0