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MathGroup Archive 2007

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Three unrelated questions about Graphics and Mathematica 5.2

  • To: mathgroup at smc.vnet.net
  • Subject: [mg75924] Three unrelated questions about Graphics and Mathematica 5.2
  • From: Szabolcs <szhorvat at gmail.com>
  • Date: Sun, 13 May 2007 05:53:05 -0400 (EDT)
  • Organization: University of Bergen

1. There appears to be an inconsistency in how FullGraphics works. Example:

g = Plot[Sin[x], {x, 0, 10}, Prolog -> {Red}]

Show[FullGraphics[g]]

Is is possible to create an "expanded" Graphics object from g that 
renders exactly like g itself? Or is the conversion done directly to 
PostScript before displaying (so a full representation as Graphics is 
never generated)?


2. How can one convert a Graphics3D object to 2D Graphics and preserve 
the 3D axes? The axes are gone here:

gg = ParametricPlot3D[{Sin[x], Cos[x], 0}, {x, 0, 2Pi}]
Show[Graphics@gg, AspectRatio -> Automatic]


3. I see that Display sends its output to {"stdout"} by default, and 
this output appears in the front end. Where can one find some 
documentation about what format should this output have to show up 
correctly in the front end? Is it possible to call an external 
PostScript renderer to rasterise the graphics, but make the result show 
up in the front end?
If yes, is it possible to make the front end call the external 
rasteriser, and regenerate the bitmap, every time the graphics cell is 
resized?


4. And a few questions about Mathematica 6: In v5.2 fonts were not 
magnified together with other parts of graphics in the front end. 
Therefore when the graphics were exported to a vector format (e.g. EPS), 
the end result didn't look the same as in the front end. Has this been 
solved in Mathematica 6?
Is it still possible to get the old-style PostScript graphics by 
redefining $DisplayFunction to Display[$Display, #1] &?
What do 3D graphics look like when exported to a vector format? Do they 
have the smooth mesh with generous spacing (as they appear in the front 
end), or are they the same as in v5?

Unfortunately these things cannot be tried with the trial version 
because Export is disabled. For some reason searching the documentation 
for anything that is not the name of a built-in also fails with a 
message that Export is disabled. (Why is Export needed for searching??) 
Of course the online docs work fine.


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