Re: gamepad graphics
- To: mathgroup at smc.vnet.net
- Subject: [mg79862] Re: gamepad graphics
- From: zzzz <giarc54 at gmail.com>
- Date: Tue, 7 Aug 2007 01:30:20 -0400 (EDT)
- References: <200708050856.EAA22603@smc.vnet.net><f96jqe$qg3$1@smc.vnet.net>
On Aug 6, 12:49 am, Murray Eisenberg <mur... at math.umass.edu> wrote: > Something is wrong in your code syntactically with the Print[] > expression after you remove the comments around it (even after one > inserts an apparently missing comma after Print[] in the 2D case). > > > > zzzz wrote: > > I wrote a program that is supposed to use my Logitech > > gamepad (for ps3) to control a point so that as it aproaches > > a disk, the hue of the disk will change. > > Curiously,(to me anyway) this programs works (kind of) only when a > > print command is inserted as below: > > > DynamicModule[{x = -400, y = -400, d = 1000, a = .5}, > > ControllerManipulate[ > > > Graphics[{{Hue[Dynamic[a]], Disk[{0, 0}, 200]}, {PointSize[Large], > > Point[{x, y}]}}, Axes -> True, PlotRange -> 1000, > > AspectRatio -> 1/1, ImageSize -> {500, 500}], > > Dynamic[x = x + ControllerState["Z1"]], > > Dynamic[y = y + ControllerState["Y2"]], > > > Dynamic[d = Sqrt[Abs[((x - 0)^2) + ((y - 0)^2)] ] ] , > > Dynamic[a = (N[Dynamic[d]/1000])], > > (* Print[] *) > > > "Z1" -> {x, -1000, 1000, .01}, > > "Y2" -> {y, -1000, 1000, .01}, > > > ControllerMethod -> "None"]] > > > When I remove the comment parentheses and asterix, > > it works,,,slowly. If I leave the them, the disk won't change > > color. How can I implement this better?Correctly? > > Please Help. > > I have a similar problem in 3D Below: > > > DynamicModule[{x = 900, y = 900, z = 900, d = 0.00, p = 1.3, q = -2.4, > > r = 2, a = 1}, > > ControllerManipulate[ > > > Dynamic[ > > Graphics3D[{PointSize[Large], Hue[Dynamic[a]], > > Sphere[{0, 0, 0}, 200], {Hue[.8], Sphere[{x, y, z}, 50]}}, > > PlotRange -> 1050, AspectRatio -> Automatic, > > BoxRatios -> {1, 1, 1}, Axes -> True, ImageSize -> {600, 600}, > > ViewPoint -> {p, q, r}]], > > > Dynamic[ > > d = Sqrt[((Dynamic[x] - 0)^2) + ((Dynamic[y] - > > 0)^2) + ((Dynamic[z] - 0)^2)] ], > > Dynamic[a = (N[Dynamic[d]/1000])], > > Dynamic[z = z + ControllerState["Y1"]], > > Dynamic[x = x + ControllerState["Z1"]], > > Dynamic[y = y + ControllerState["Y2"]], > > Dynamic[p = p + ControllerState["X3"]], > > Dynamic[q = q + ControllerState["Y3"]], > > > (*Print[], *) > > > "Y3" -> {q, -10, 10, .00001}, > > "X3" -> {p, -10, 10, .00001}, > > "Y1" -> {z, -1000, 1000, .01}, > > "Z1" -> {x, -1000, 1000, .01}, > > "Y2" -> {y, -1000, 1000, .01}, > > ControllerMethod -> "None", TrackedSymbols -> All] > > ] > > > Gratefull for any help! > > -- > Murray Eisenberg mur... 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 Thanks Murray, Yeah, I know the Print statement is wrong. But Why must it be there in order for the color of the disk (or sphere in 3d ) to change color as a function of the distance?? How can I get the program to work without the Print statement?( comma aside) Thanks for your time.
- References:
- gamepad graphics
- From: zzzz <giarc54@gmail.com>
- gamepad graphics