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- Newsgroups: sci.fractals
- Path: sparky!uunet!utcsri!skule.ecf!torn!nott!bnrgate!bcars267!bcars173!yavuz
- From: yavuz@bnr.ca (Yavuz Onder)
- Subject: (x)fractint authors please read
- Message-ID: <1992Nov12.182116.5976@bnr.ca>
- Sender: yavuz@bcars173 (Yavuz Onder)
- Nntp-Posting-Host: bcars173
- Organization: Bell-Northern Research, Ottawa, Canada
- Date: Thu, 12 Nov 1992 18:21:16 GMT
- Lines: 53
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- I am trying to print black and white postscript in device resolution,
- and have a few problems/questions:
-
- 1. my postscript image comes out with 00 and FB as gray levels, I
- would like the latter to be FF so that output has white instead of a
- pattern of dots for the very light gray FB represents. How can I do
- this? What is the array "convert" into which a linear combination of
- "dacbox" entries are put, when colorps=no is specified, why 00 and
- FF are not used as the only "colors"? (also see the (3) below). Why
- "convert" is filled differently based on compression usage?
-
- 2. scaling of the image is defective: when I specify epsf=0
- printer=psl/300 the page gets filled by a distorted picture. instead
- of using the part of page for a picture of correct aspect. When i
- tried epsf=1 and psl it could fit only a small part of the picture,
- and ignored the landscape spec. The same scaling factor for both
- coordinates should be used to keep the image proportions correct. To
- cater for the need of forcing the use of the finest resolution the
- device can provide a double scaling just before the "image" is a good
- idea e.g. "72 300 scale 2048 1536 scale" for the case of a 300 dpi
- printer printing a 2048x1536 image. Note that the first scaling is
- from postscript default (always 72) to current resolution whether
- fractint default or user specified. Forcing the device resolution
- should be tied to a user specified option of course. Which one is
- appropriate (or a new one?) you guys think?
-
- 3. when epsf is not specified, even if the PS/PSL is selected as the
- printer type,a *.prn file is generated, whereas epsf=0 with everything
- else the same, a *.eps file is output. Is this a bug or do I have a
- misunderstanding of the options involved. I think a little more
- explanation of epsf and its interaction with other postscript related
- parameters would be helpful.
-
- 4. i think imagemask should be used instead of image when device
- resolution is specified.
-
- I can suggest fixes for last three as I have already corrected them on
- *.eps files and tried successfully, but the first one seems little
- more complex. for which I need your advice.
-
- Thanks in advance for responses...
-
- --
- Yavuz Onder | Bell-Northern Research Ltd. | My opinions aren't
- (613)-763-2294 | P.O. Box 3511 Station C | necessarily BNR's,
- yavuz@bnr.ca | Ottawa, Ont. CANADA K1Y 4H7 | or vice versa.
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