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MathGroup Archive 2005

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Re: Problems with eps format

  • To: mathgroup at smc.vnet.net
  • Subject: [mg56711] Re: [mg56673] Problems with eps format
  • From: Ted Sariyski <tsariysk at craft-tech.com>
  • Date: Wed, 4 May 2005 00:34:09 -0400 (EDT)
  • References: <200505020532.BAA00325@smc.vnet.net> <200505030926.FAA25654@smc.vnet.net> <acbec1a405050310227e6b51c1@mail.gmail.com> <4277B9D5.5030506@craft-tech.com> <acbec1a4050503105820d9a48c@mail.gmail.com>
  • Sender: owner-wri-mathgroup at wolfram.com

ps was my first try but I get  "Invalid file format".  Postscript is not 
listed as supported file format (while eps is listed). I am not sure 
what is the difference between eps level 2 and level 3 but here is what 
'file' returns:

#> file test.*ps
test.eps: PostScript document text conforming at level 3.0 - type EPS
test.ps:   PostScript document text conforming at level 3.0

I'm  unable to import neither ps nor eps.
Thanks, Ted

Chris Chiasson wrote:

>To be honest, I don't know what EPS level three is. Are you sure
>you're not trying to import a post script file?
>
>On 5/3/05, Ted Sariyski <tsariysk at craft-tech.com> wrote:
>  
>
>>'PostScript document text conforming at level 3.0 - type EPS' files are generated from another application. When I try to import them I got "Invalid file format". That's why I converted the files to a format I was able to import.  Actually that's one of my questions: Why I'm able to import eps level 2 but unable to import eps level 3 into Mathematica?
>>Thanks, Ted
>>
>>
>>Chris Chiasson wrote:
>>
>>    
>>
>>>Why import a tif into Mathematica and then export it as an eps? Tif is
>>>a raster format, eps is a ~ vector format. It probably would take a
>>>long time to convert an array of color values into some sort of vector
>>>graphics.
>>>What is the native resolution of your tiffs? If they are moderate in
>>>size, that would explain the slow performance of the graphics array
>>>and associated statements.
>>>
>>>On 5/3/05, Ted Sariyski <tsariysk at craft-tech.com> wrote:
>>>
>>>
>>>      
>>>
>>>>Hi,
>>>>I have problems with eps format in Mathematica 5.1.
>>>>
>>>>If I try to import a file generated from Octave I get "Invalid file
>>>>format". The format of the file is  "PostScript document text conforming
>>>>at level 3.0 - type EPS". If I import a tif file to Mathematica, export
>>>>it in eps and reimport it back it works but very slow. The format of the
>>>>eps generated from Mathematica is "PostScript document text conforming
>>>>at level 2.0 - type EPS". What I'm doing wrong here?
>>>>
>>>>Another question I have concerns the dumb script below.
>>>>
>>>>g11 = Import["c_s_a.tif"];
>>>>g12 = Import["c_s_b.tif"];
>>>>...
>>>>g43 = Import["a_l_a.tif"];
>>>>g = GraphicsArray[{{g11, g12, g13}, {g21, g22, g23}, {g31, g32, g33},
>>>>{g41, g42, g43}}];
>>>>Show[g, {ImageSize -> {600, 420}, AspectRatio -> Automatic}];
>>>>Export["array.tif", g];
>>>>
>>>>Q1. Export["array.tif", g] takes ~ 20 sec. If I change it to
>>>>Export["array.eps", g] it takes ~3 min.
>>>>Q2. The same script executed from a notebook freezes.
>>>>Q3. How to write the script so that to be able to provide the file names
>>>>as arguments?
>>>>
>>>>Thanks in advance,
>>>>Ted
>>>>
>>>>
>>>>
>>>>
>>>>        
>>>>
>>>
>>>
>>>      
>>>
>>--
>>Ted Sariyski
>>------------
>>Combustion Research and Flow Technology, Inc.
>>6210 Keller's Church Road
>>Pipersville, PA 18947
>>Tel: 215-766-1520
>>Fax: 215-766-1524
>>www.craft-tech.com
>>tsariysk at craft-tech.com
>>
>>
>>    
>>
>
>
>  
>


-- 
Ted Sariyski
------------
Combustion Research and Flow Technology, Inc.
6210 Keller's Church Road
Pipersville, PA 18947
Tel: 215-766-1520
Fax: 215-766-1524
www.craft-tech.com
tsariysk at craft-tech.com



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