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MathGroup Archive 2001

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flat box under RealTime3D

  • To: mathgroup at smc.vnet.net
  • Subject: [mg28909] flat box under RealTime3D
  • From: maarten.vanderburgt at icos.be
  • Date: Fri, 18 May 2001 01:13:12 -0400 (EDT)
  • Sender: owner-wri-mathgroup at wolfram.com

Hallo,

I want to show some scattered {x,y,z} data in a 3-dimensional plot using
ScatterPlot3D. So I load:
<< Graphics`Graphics3D`

This my data:
dat = Flatten[ Table[{x, y, 3 + Cos[x y/10000.]}, {x, -100, 100, 10}, {y,
-100, 100, 10}], 1];

The z-range in list dat is very small compared to x- and y-range. To
scretch the z-scale in my plot I use BoxRatios -> {1, 1, 1}:

ScatterPlot3D[dat, BoxRatios -> {1, 1, 1}]

produces a nice image in a cube.

I want to spin it around with the mouse. So I load:

<< RealTime3D`

and do

ScatterPlot3D[dat, BoxRatios -> {1, 1, 1}]

Instead of a cube I get graphics in a flat box with box ratios (100,100,1}
which doesn't show any structure in the z direction.

This seems a bug in RealTime3D. Has anyone seem the same problem?
How can I fix this? I am using Mathematica 4.1 under Windows NT4.

Thanks for your help,

Maarten van der Burgt
ICOS Vision Systems
R&D Department
Esperantolaan 9
B-3001 Leuven, Belgium




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