Re: No "Arrow3D" ?

*To*: mathgroup at smc.vnet.net*Subject*: [mg34852] Re: [mg34832] No "Arrow3D" ?*From*: "Y.A. Tesiram" <yas at pcomm.hfi.unimelb.edu.au>*Date*: Sun, 9 Jun 2002 05:10:31 -0400 (EDT)*Sender*: owner-wri-mathgroup at wolfram.com

G'day, You mean it doesn't exist? See [mg33525] and [mg33518]. Depending on what you are doing, you might find Jens-Peer's suggestion the quickest and simplest. Summary follows. MathGroup MathGroup 2002 2002 2002 2002 [Date Index] [Thread Index] [Author Index] Search the Archive Re: Re: Vector Diagrams * To: mathgroup at smc.vnet.net * Subject: [mg34852] [mg33525] Re: [mg33518] Re: Vector Diagrams * From: Yas <y.tesiram at pgrad.unimelb.edu.au> To: mathgroup at smc.vnet.net * Date: Mon, 25 Mar 2002 03:45:00 -0500 (EST) * Sender: owner-wri-mathgroup at wolfram.com Hi Terry, I've attached the replies sent to me. I tried J-PK's solution which has it's advantages of quick visualization but I didn't try Kevins Vector3D because I had settled on DJP's DrawGraphics package. Cheers Yas FROM David Park ============== Yas, Certainly. Since your plot contains many elements I used my DrawGraphics package, available at my web site below. Since you probably don't have DrawGraphics yet, I have attached a .gif image of the sample plot I made. I also attached the Mathematica notebook I used to make the plot. DrawGraphics makes it easy to combine many different plot elements in one piece of graphics. It also has many useful extra routines. For example, I used UseWireframe to make the see through sphere and disk. I used Arrow3D to draw 3D vectors. I used a surface color on the arrow cones and used NeutralLighting so that the color would not be overwhelmed by the standard light sources. I used DrawAxed to draw the x,y,z axes. DrawGraphics has complete documentation and also comes with a handy palette. David Park djmp at earthlink.net http://home.earthlink.net/~djmp/ FROM Jens-Peer Kuska =================== Hi, Mathematica has no nice 3d arrows but you may use the arrows from Needs["Graphics`PlotField3D`"] Arrow[{x_, y_, z_}, {dx_, dy_, dz_}] := Graphics`PlotField3D`Private`vector3D[{x, y, z}, {dx, dy, dz}, True] and use poly = Polygon [ Table[{Cos[phi], Sin[phi], 0}, {phi, 0, 2Pi, 2Pi/20}]]; Show[Graphics3D[{poly, Arrow[{0, 0, 0}, {1, 0, 0}], Arrow[{0, 0, 0}, {0, 1, 0}], Arrow[{0, 0, 0}, {0, 0, 1}] } ] ] to make the axes and the ellipse. Regards Jens On Sunday, March 24, 2002, at 05:45 PM, TerryH wrote: > Hi Kevin: > Could you please send me a copy of your routine for a 3D Arrow? > Is it a package? Also, do you know of anything equivalent in > MathSource? > Many thanks in advance! > ....Terry > > "Kevin J. McCann" wrote: > >> There is no 3D equivalent of Arrow; however, I have written a small >> routine >> called Vector3D[{x1,y1,z1},{x2,y2,z2},HeadLength] that draws a line >> and an >> inverted cone for the head of the vector. It works, but I usually have >> to >> fiddle with the size of the cone through HeadLength to make it look >> right. >> If you would like, I will send it to you. >> >> Kevin >> >> "Yas" <y.tesiram at pgrad.unimelb.edu.au> wrote in message >> news:a7cspe$i17$1 at smc.vnet.net... >>> Hi all, >>> Can someone point me the right direction on how to go about drawing >>> vector diagrams in Mathematica or if it can be done at all. I would >>> like >>> to draw several vectors in a sphere. Specifically I want the xy plane >>> as >>> a shaded ellipse and the three axes, originating from the centre of >>> the >>> ellipse with the z-axis vertical along the page and y-axis, >>> horizontally >>> along the page. In this frame I then want to draw vectors from the >>> origin to various points within this sphere. >>> Thanks >>> Yas >>> >>> > On Sat, 8 Jun 2002, aes wrote: > Subject line says it all. > >