[OS X TeX] Apple PDF viewer bugs on this shading

Justin C. Walker justin at mac.com
Tue Dec 1 03:48:46 CET 2009

On Nov 30, 2009, at 18:30 , Justin C. Walker wrote:

> On Nov 30, 2009, at 17:30 , Herbert Schulz wrote:
>> On Nov 30, 2009, at 5:25 PM, Justin C. Walker wrote:
>>> On Nov 30, 2009, at 07:02 , Alain Matthes wrote:
> [snip]
>>> Also, FWIW, this comment appears in the description of  
>>> \pgfdeclarefunctionalshading:
>>> Warning: These shadings are the least portable of all and they put  
>>> the heaviest burden of the renderer.  They are slow and, possibly,  
>>> will not print correctly!Howdy,
>> Assuming that Alain is seeing the same thing I see using OS X  
>> 10.6.2 and compiling with pdflatex any viewer that uses PDFKit  
>> (TeXShop's viewer, Preview, Safari, Skim) shows the shading  
>> incorrectly while Adobe Reader and TeXworks viewer show it  
>> correctly. If you compile the same file using latex->dvips->ps2pdf  
>> all viewers show the file correctly.
>> I've tried this with MacTeX(TeX Live)-2008 and -2009 with the same  
>> result. Ross Moore is using 10.4.11 and isn't seeing the problem. I  
>> haven't seen reports on 10.5.8 yet but it appears to be system  
>> dependent so I'm assuming that PDFKit has a problem under OS X  
>> 10.6.2.
> I should have mentioned that I see the same as everyone but Ross  
> (bad shading with the dvi+tex script; OK with the pdftex script).

Of course, what the poster meant to type is just the reverse of this:
   dvi+tex: good
   pdftex:   bad



Justin C. Walker
Institute for the Absorption of Federal Funds
186,000 Miles per Second
Not just a good idea:
   it's the law!

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