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Re: Re: can't get ListVectorPlot3D to work.

  • To: mathgroup at smc.vnet.net
  • Subject: [mg107558] Re: [mg107551] Re: [mg107506] can't get ListVectorPlot3D to work.
  • From: DrMajorBob <btreat1 at austin.rr.com>
  • Date: Wed, 17 Feb 2010 07:01:48 -0500 (EST)
  • References: <201002151046.FAA28191@smc.vnet.net>
  • Reply-to: drmajorbob at yahoo.com

The OP's example DOES fit the second description, and Help is just wrong.

Bobby

On Tue, 16 Feb 2010 05:11:20 -0600, <bsyehuda at gmail.com> wrote:

> The way you try to do it does not conform with the documentation.
> ListVectorPlot3D expect either
> 1. a rectangular array of height values
> 2. A list. The element of the list are TWO lists, in which the first is
> point and the second is the vector (of the field) at that point
>
> so, unless you meet with one of the requirements you cannot do it
>
> yehuda
>
> On Mon, Feb 15, 2010 at 12:46 PM, 1.156 <rob at piovere.com> wrote:
>
>> *********
>> 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
>>
>>
>>


-- 
DrMajorBob at yahoo.com


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