Re: Re: Stopping Automatic Animation in v6

*To*: mathgroup at smc.vnet.net*Subject*: [mg76823] Re: [mg76765] Re: Stopping Automatic Animation in v6*From*: Murray Eisenberg <murray at math.umass.edu>*Date*: Mon, 28 May 2007 00:57:05 -0400 (EDT)*Organization*: Mathematics & Statistics, Univ. of Mass./Amherst*References*: <f36d9n$5q2$1@smc.vnet.net> <f38s5g$icv$1@smc.vnet.net> <200705270848.EAA03172@smc.vnet.net>*Reply-to*: murray at math.umass.edu

On my system, NOTHING is being "animated" by your input. It produces a single 3D graphic. And OF COURSE if you change something in the input code and evaluate it, it changes the output. Brian Gladman wrote: > "Jean-Marc Gulliet" <jeanmarc.gulliet at gmail.com> wrote in message > news:f38s5g$icv$1 at smc.vnet.net... >> Brian Gladman wrote: >>> I am trying to visualise the exact relationship between some 3D objects >>> by >>> using Graphics3D to display them. But as soon as I evaluate the >>> expression, >>> Mathematica 6 goes into some automated animation mode which destroys the >>> relationship I am trying to set up since I need fixed objects viewed from >>> a >>> specified and fixed viewpoint. >>> >>> But I cannot find any option in Graphics3D to turn off this automatic >>> animation. How do I force Graphics3D to display only what is asked for >>> and >>> not >>> an animation of it? >>> >>> Any help with this would be much appreciated as its proving to be a real >>> pain. >>> >>> Brian Gladman >> Brian, >> >> Could you, please, provide an example of an expression that behaves in >> the incriminated way? By default, graphics (2D or 3D) are drawn static =2E >> For example, evaluating >> >> Graphics3D[{Blue, Cylinder[], Red, Sphere[{0, 0, 2}], Black, Thick, >> Dashed, Line[{{-2, 0, 2}, {2, 0, 2}, {0, 0, 4}, {-2, 0, 2}}], >> Yellow, Polygon[{{-3, -3, -2}, {-3, 3, -2}, {3, >> 3, -2}, {3, -3, -2}}], Green, Opacity[.3], >> Cuboid[{-2, -2, -2}, {2, 2, -1}]}] >> >> draws several 3D objects without any animation. > > Hi Jean-Marc > > Here is an example that shows the issue. > > p = {{0, 0, 3 Sqrt[6]}, {-2 Sqrt[3], -6, -Sqrt[6]}, {-2 Sqrt[3], > 6, -Sqrt[6]}, {4 Sqrt[3], 0, -Sqrt[6]}} > Graphics3D[{{Line[{p[[1]], p[[2]]}], Line[{p[[1]], p[[3]]}], > Line[{p[[1]], p[[4]]}], Line[{p[[2]], p[[3]]}], > Line[{p[[2]], p[[4]]}], Line[{p[[3]], p[[4]]}]}}] > > The very first time this is evaluated after starting up Mathematica, it is > static but all subsequent evaluations, for example, with a change of one of > the lines, are then immediately dynamic. That is, animation starts as soon > as the expression is re-evaluated. Moreover if I make a change in the > expression and re-evaluate it, the graphic animation continues from the last > position it reached and not from the initial position set by the expression > re-evaluation. > > What I am looking for is a switch to simply say that for this particular > object animation should not be undertaken. > >> Or are you talking about the new real-time feature that allows the user >> to rotate or expand or shrink 3D graphics with the mouse? > > I think it is related to this in some way. These are great new capabilities > but it is not obvious to me how I can switch them on and off. > > Thanks for taking an interest in the issue. > > best regards, > > Brian > > -- Murray Eisenberg murray at math.umass.edu Mathematics & Statistics Dept. Lederle Graduate Research Tower phone 413 549-1020 (H) University of Massachusetts 413 545-2859 (W) 710 North Pleasant Street fax 413 545-1801 Amherst, MA 01003-9305

**References**:**Re: Stopping Automatic Animation in v6***From:*"Brian Gladman" <brg@nowhere.org>