3600 dpi postscript driver?

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4 total messages Started by JohnWong Mon, 03 Mar 2003 22:09

#959

Author: JohnWong
Date: Mon, 03 Mar 2003 22:09

1 lines
873 bytes

I need to generate a high resolution postscript file. Is there a 3600 dpi postscript driver? Thanks.

Re: 3600 dpi postscript driver?

#963

Author: Aandi Inston
Date: Tue, 04 Mar 2003 08:46

6 lines
1005 bytes

PostScript is a vector language, and mostly free of resolution. So
your question is difficult to make sense of. Perhaps you should take a
step back and describe EXACTLY what the problem is that you are trying
to solve?

Aandi Inston

Re: 3600 dpi postscript driver?

#898

Author: Bertil Maire
Date: Fri, 14 Mar 2003 08:11

11 lines
1473 bytes

I will precise the question:
According to the tests I made with the Adobe Generic Postscript Driver, The resolution is set to an astonisching low resolution (300 dpi). Although PS is vectorial, coordinates for lines and character placement are embedded in the file.
Example: "N 790 2900 M 790 2912 I K "
The coupe of numbers are coordinates for a small line of 1 mm long. If I convert: 12 units for 1 mm and 25 mm per Inch -> 12 * 25 = 300 dpi. This max resolution is too low for my requirements.
Anybody know where to change the resolution of this driver? No option is available in the printer settings.
OS: WinNT
Driver: Adobe Generic Postscript Driver
Printing to PS file from C++/MFC Application.

Thanks
Bertil

Re: 3600 dpi postscript driver?

#899

Author: Aandi Inston
Date: Fri, 14 Mar 2003 09:58

17 lines
1679 bytes

Ok, I see what is happening, I think.  While the PostScript file does
not have a resolution, the co-ordinates are being rounded to the known
resolution of the driver - probably because it produces a smaller
PostScript file.

The generic driver is designed to be the lowest specification,
simplest, target printer, so it works on all devices. You should never
use it for a real printer.  I will repeat this simply for anyone
skimming this discussion: NEVER USE THE GENERIC DRIVER for any real
work.

The right driver to use is the one for your actual output device. That
will probably change the precision of co-ordinates (still integers,
bigger co-ordinate system), and give you full control over your
device.

Aandi Inston

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