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AspectRatio unpredictable

• To: mathgroup at smc.vnet.net
• Subject: [mg121398] AspectRatio unpredictable
• From: "Christopher O. Young" <cy56 at comcast.net>
• Date: Wed, 14 Sep 2011 05:12:08 -0400 (EDT)
• Delivered-to: l-mathgroup@mail-archive0.wolfram.com

When I rotate this plot, the size and shape of the bounding box jumps around
pretty wildly. It goes from cube-shaped, the way it should be, to a
flattened box.

There are pictures at http://home.comcast.net/~cy56/AspectRatio%20OK.pdf and
http://home.comcast.net/~cy56/AspectRatio%20bug.png

DiscretePlot3D[
 x * y,
 
 {x, -2, 2},
 {y, -2, 2},
 
 PlotRange -> {{-4, 4}, {-4, 4}, {-4, 4}},
 AspectRatio -> 1,
 
 ExtentSize -> 0.75,
 
 AxesLabel -> {"x", "y", "z"},
 PlotStyle -> Opacity[0.5],
 ColorFunctionScaling -> False,
 ColorFunction -> (Hue[0.35 (#3 + 4)/8 ] &)
 ]

Here's a simpler example (which I should have done first):

Plot3D[
 x y,
 
 {x, -2, 2},
 {y, -2, 2},
 
 AspectRatio -> 1
 ]

Again, the bounding box starts off the wrong shape (not as tall as it is
wide) and when you try to rotate it, the shape and size jump around
unpredictably. It's only a cube, the way it should be, about half the time
you're rotating it.

Chris Young
cy56 at comcast.net 

• Follow-Ups:
  • Re: AspectRatio unpredictable
    • From: Heike Gramberg <heike.gramberg@gmail.com>