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MathGroup Archive 2007

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Re: Can an arrow be drawn on a 3D plot?

  • To: mathgroup at
  • Subject: [mg81418] Re: Can an arrow be drawn on a 3D plot?
  • From: "Kevin J. McCann" <Kevin.McCann at>
  • Date: Sat, 22 Sep 2007 03:32:54 -0400 (EDT)
  • Organization: University System of Maryland
  • References: <fcnkbv$rqc$> <19538521.1190210316107.JavaMail.root@m35> <fct95r$qiu$>

I agree with Bobby's comments. David's DrawGraphics6 package is 
extremely well done and more than worth the price. I know that David has 
been working overtime to implement the new version 6 stuff. I use it all 
the time and am constantly impressed (and thankful that he did it).

DrMajorBob wrote:
> David's package is awesome. The package functions make many things easy 
> that Mathematica still makes hard on its own. Even more important, perhaps, the 
> examples explore the boundaries of visual presentation in Mathematica (or any  
> environment) and demonstrate, expertly, how to choose and combine graphic  
> elements for maximum information content and effect.
> Bobby
> On Wed, 19 Sep 2007 04:33:42 -0500, David Park <djmpark at> wrote:
>> DrawGraphics has Arrow3D and ArrowCurve3D commands. The following code
>> puts
>> two arrowcones on the green contour line.
>> Needs["DrawGraphics6`DrawingMaster`"]
>> f[z_] := z;
>> Draw3DItems[
>>  {Opacity[0.7, Red],
>>   ParametricDraw3D[{Re[z], Im[z], Im[f[z]]} /. z -> r*Exp[I*t], {r, 0,
>>      5}, {t, -Pi, Pi}],
>>   pts = ParametricDraw3D[{Re[z], Im[z], Im[f[z]]} /.
>>       z -> 2*Exp[I*t], {t, -Pi, Pi}] // Extract3DLinePoints;
>>   ArrowCurve3D[
>>    pts, {0.5, 1.0}, {0.05,
>>     PlotStyle -> {Opacity[1, Darker@Green]}}, {AbsoluteThickness[2],
>>     Darker@Green}]
>>   },
>>  Axes -> True,
>>  ImageSize -> {500, 500}]
>> DrawGraphics is sold for $50. It, of course, has many other features than
>> Arrow3D. You can read more about it at my web site. DrawGraphics has now
>> been updated to Version 6. Present purchasers can freely update and have
>> received email notices to this effect. Some have changed their email
>> addresses and did  not receive the notice. If such persons see the notice
>> here they may contact me.

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