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Re: Re: How to find current ViewAngle, ViewPoint during Rotating graphics?

  • To: mathgroup at smc.vnet.net
  • Subject: [mg98612] Re: [mg98576] Re: [mg98552] How to find current ViewAngle, ViewPoint during Rotating graphics?
  • From: John Fultz <jfultz at wolfram.com>
  • Date: Tue, 14 Apr 2009 06:17:10 -0400 (EDT)
  • Reply-to: jfultz at wolfram.com

On Mon, 13 Apr 2009 03:33:54 -0400 (EDT), Nasser Abbasi wrote:
>
>
> From: "David Park" <djmpark at comcast.net>
>
>
>> Make a Plot, say,
>>
>> Plot3D[(x - 3) (y - 2), {x, 0, 5}, {y, 0, 5},
>> ImageSize -> 300]
>>
>> Then in the output, position the cursor to the left of the plot and type
>> 'AbsoluteOptions['. Next position the cursor to the right of the plot
>> and
>> type ',ViewPoint]'. Evaluate and you will obtain the current ViewPoint.
>> You
>> can rotate the image and reevaluate to get the new ViewPoint. Then copy
>> the
>> ViewPoint into the original plot statement.
>>
>> Without the ImageSize option it also works but I get warning messages
>> after
>> rotating.
>>
>>
>> David Park
>> djmpark at comcast.net
>> http://home.comcast.net/~djmpark/
>>
>>
> Thanks David, but the above does not seem to work on my plot. I am using
> this 3D plot
>
> ParametricPlot3D[{Sin[u], Cos[u], 0.05*u}, {u, 0, 5*2*Pi}, PlotStyle ->
> {Tube[thick]},
> ViewPoint -> {2.645, 2.057138, 0.468316}, ViewAngle -> Automatic, Axes ->
> False, Boxed -> False,
> ImageSize -> 300]
>
> And the above ViewPoint value was copied as a result of the method you
> described, yet the resulting image orientation does not match that which=
 I
> copied the ViewPoint from.
>
> Here is a screen shot.
>
> http://12000.org/tmp/041209/viewpoint.PNG
>
> Basically, I am trying to make a "spring" which is oriented sideways
> instead
> of up-down.
>
> This is on Mathematica 7
>
> ps. You are right above getting a warning when not using ImageSize.
>
> --Nasser

You should be getting not only the ViewPoint, but the ViewVertical, as well.

Sincerely,
 
John Fultz
jfultz at wolfram.com
User Interface Group
Wolfram Research, Inc.




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