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The risks of Sphere export

• To: mathgroup at smc.vnet.net
• Subject: [mg128673] The risks of Sphere export
• From: Andrzej Kozlowski <akozlowski at gmail.com>
• Date: Thu, 15 Nov 2012 04:00:15 -0500 (EST)
• Delivered-to: l-mathgroup@mail-archive0.wolfram.com
• Delivered-to: l-mathgroup@wolfram.com
• Delivered-to: mathgroup-newout@smc.vnet.net
• Delivered-to: mathgroup-newsend@smc.vnet.net

The following will crash my Mathematica every time:

Export["cellular.pdf", 
 Graphics3D[
  Sphere /@ 
   Position[CellularAutomaton[{10, {2, 1}, {1, 1}}, {{{1}}, 0}, 20], 
    1], ViewVertical -> {-1, 0, 0}], "PDF"]

However, if I  replace Sphere by Cuboid,i.e. 

Export["cellular.pdf", 
 Graphics3D[
  Cuboid /@ 
   Position[CellularAutomaton[{10, {2, 1}, {1, 1}}, {{{1}}, 0}, 20], 
    1], ViewVertical -> {-1, 0, 0}], "PDF"]

I get no crash. 

$Version

8.0 for Mac OS X x86 (64-bit) (October 5, 2011)

?

Andrzej Kozlowski