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From: Els on 14 May 2010 06:19
Two questions on ellipsoid questions:

1.
In a for loop, I use the command [x,y,z] = ellipsoid() twice, where the second one uses the [x,y,z] to rotate these values.
But the first ellipsoid I do not want to show, only the second one with the rotated coordinates. How do I make the first ellipsoid invisible?

2.
I have two points on the surface of my ellipsoid. I calculated the distance between them with the Vincenty formula. But now I want to plot this distance on the ellipsoid distance as well. For a sphere this is easy, but I do not know how to do it for an ellipsoid.
From: us on 14 May 2010 07:15
"Els " <y.e.t.reeuwijk(a)student.utwente.nl> wrote in message <hsj82p$f37$1(a)fred.mathworks.com>...
> Two questions on ellipsoid questions:
>
> 1.
> In a for loop, I use the command [x,y,z] = ellipsoid() twice, where the second one uses the [x,y,z] to rotate these values.
> But the first ellipsoid I do not want to show, only the second one with the rotated coordinates. How do I make the first ellipsoid invisible?
>
> 2.
> I have two points on the surface of my ellipsoid. I calculated the distance between them with the Vincenty formula. But now I want to plot this distance on the ellipsoid distance as well. For a sphere this is easy, but I do not know how to do it for an ellipsoid.

CSSMers would have to know what ELLIPSOID() does, eg, does it return handles to its line(s), axis,... -or- does it tag these primitives with special key words,...

if you can access line handles (eg, LH), for instance, you could use

set(lh,'visible','off');
% -or- delete them altogether
delete(lh);

us
From: Els on 14 May 2010 07:36
You can acces the handles, but then the [x,y,z] is not possible.
Because the handles are only available for the ellipsoid(axes_handle,...) option.
So, your solution will not work in my case.
From: us on 14 May 2010 07:42
"Els " <y.e.t.reeuwijk(a)student.utwente.nl> wrote in message <hsjcj4$41g$1(a)fred.mathworks.com>...
> You can acces the handles, but then the [x,y,z] is not possible.
> Because the handles are only available for the ellipsoid(axes_handle,...) option.
> So, your solution will not work in my case.

why not(?)...
these are not related...
one really would have to see the code...

us
From: Els on 15 May 2010 19:49
I am still hoping anyone can help me with these plot questions. The line on the ellipsoid and to not make the standard ellipsoid function of matlab visible.

Thanks in advance.
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