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MathGroup Archive 2005

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Re: Problems with eps format

  • To: mathgroup at smc.vnet.net
  • Subject: [mg56717] Re: [mg56673] Problems with eps format
  • From: Chris Chiasson <chris.chiasson at gmail.com>
  • Date: Wed, 4 May 2005 00:34:31 -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> <4277D140.5080604@craft-tech.com>
  • Reply-to: Chris Chiasson <chris.chiasson at gmail.com>
  • Sender: owner-wri-mathgroup at wolfram.com

So the EPS level 2 files do Import and display (using Show) in
Mathematica then?

On 5/3/05, Ted Sariyski <tsariysk at craft-tech.com> wrote:
> 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
> 
> 


-- 
Chris Chiasson
http://chrischiasson.com/
1 (810) 265-3161


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