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Re: curvilinear coordinates


From: Juan Pablo Carbajal
Subject: Re: curvilinear coordinates
Date: Mon, 18 Feb 2013 18:04:03 +0100

On Mon, Feb 18, 2013 at 5:21 PM, Katrijn <address@hidden> wrote:
> Hello,
>
> I am working with non-orthogonal curvilinear coordinates. When using the
> command quiver(x,y,uvel,vvel) I get the origins of the vectors at the
> correct spot, however the direction is still calculated in the cartesian
> coordinate system (so basically I get the same vectors in quiver(uvel,vvel)
> and quiver(x,y,uvel,vvel) except that the position is changed, while I
> expected a translation and a rotation of my vectors, I only got a
> translation. I looked around but do not seem to find an easy answer. In
> matlab there seems to exist a curv2cart.m script, but I can't seem to find
> it. Hope somebody can help me.
>
> Cheers,
>
> Katrijn
>
>
>
> --
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> http://octave.1599824.n4.nabble.com/curvilinear-coordinates-tp4649950.html
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Katrijn,

quiver plots an arrow defined by the components V=(vx,vy) at the point
P=(x,y). A kind of discretized version of a vector field V(P) =
(vx(x,y),vy(x,y)).

What is exactly what you want to plot? what are you trying to achieve?
I do not the curv2mat script you mentioned.

Cheers


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