Re: can't get ListVectorPlot3D to work.
- To: mathgroup at smc.vnet.net
- Subject: [mg107537] Re: [mg107506] can't get ListVectorPlot3D to work.
- From: "David Park" <djmpark at comcast.net>
- Date: Tue, 16 Feb 2010 03:53:21 -0500 (EST)
- References: <15703940.1266231913393.JavaMail.root@n11>
Rob,
It looks to me that the Help for ListVectorPlot3D is deceptive at best in
the second usage. It appears that there must be a regular array and those
are the only examples that are shown.
However, you could do the following:
drawVector[{point_, vector_}] := Arrow[{point, point + vector}]
Graphics3D[
{Blue,
drawVector /@ pts},
Axes -> True,
ImageSize -> 350]
David Park
djmpark at comcast.net
http://home.comcast.net/~djmpark/
From: 1.156 [mailto:rob at piovere.com]
*********
HELP states: ListVectorPlot3D[{{ {x1,y1,z1},{vx1,vy1,vz1}}, ...}]
generates 3D vector plot from vector field values {vxi,vyi,vzi} given at
specified points {xi,yi,zi}.
But, I get nothing but an empty box when trying this:
pts={ {{3., 0, 0}, {-2.15667, 3.39688, 4.02369}},
{{0.843326, 3.39688, 4.02369}, {-4.19657, -2.394, 4.8314}},
{{-3.35324, 1.00288, 8.85509}, {2.19306, -4.30499, 4.8314}},
{{-1.16019, -3.30212, 13.6865}, {4.4038, 1.98721, 4.8314}},
{{3.24361, -1.31491, 18.5179}, {-1.77692, 4.49277, 4.8314}} }
ListVectorPlot3D[pts]
I've spent hours trying various options and have never seen a plot yet.
(VectorPoints->All seemed most promising but got nowhere.)
Surely I'm misinterpreting something --can someone please enlighten me
as to what? Using V7 on XP.
Thanks, Rob