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Re: find a plane in a 3D plot [message #62498 is a reply to message #62497]

Fri, 12 September 2008 06:45

pgrigis
Messages: 436
Registered: September 2007

Senior Member

If a field line is embedded in a plane, then the vector product
of any two vectors tangent to it will point in the direction of
the perpendicular of the plane. If not, the vector products will
not be parallel.

Paolo

Nicola wrote:
> Dear folks,
> I'm facing a problem which I do not have any idea how to solve.
> Imagine that you have a 3 dimensional field as a function of time, say
> the three component of a magnetic field for example. They are stored
> in a fltarr(nsample,3).
> If plotted in a 3D box (by using for example plot_3dbox) they describe
> a closed orbit. I do know that they actually describe an ellipse (or
> something similar considering the fact that we are dealing with
> experimental data which not always correspond to theory!) and that
> this ellipse (or closed path) lies on a plane which have a certain
> inclination with respect to the three magnetic axis. I have to find a
> way to identify this plane and the direction perpendicular to this
> plane in the more accurate way as possible.
> Do you have any idea how to proceed? Any suggestion will be very very
> appreciated
> Thank you very much
> nicola

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[Message index]

		Re: find a plane in a 3D plot By: Nicola on Fri, 12 September 2008 09:20
		Re: find a plane in a 3D plot By: Wox on Fri, 12 September 2008 07:47
		Re: find a plane in a 3D plot By: David Fanning on Fri, 12 September 2008 07:29
		Re: find a plane in a 3D plot By: Brian Larsen on Fri, 12 September 2008 06:59
		Re: find a plane in a 3D plot By: pgrigis on Fri, 12 September 2008 06:45
		Re: find a plane in a 3D plot By: Wox on Mon, 22 September 2008 02:15

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