Low quality printing from Java

[Yaroslav Bulatov]

Here's an example of text printed from Java, it was rendered using
Graphics.drawString, sent to a PostScript printer (WPrinterJob is the
default printer job)
http://yaroslavvb.com/work/curve-noise1.png

Top is what Java prints, under magnification, bottom is what it should
be. You can see that curves are uneven, and every character is
rendered in a slightly different way. What causes this, and how can
the quality be improved?

Yaroslav

 

[Knute Johnson]

Here's an example of text printed from Java, it was rendered using
Graphics.drawString, sent to a PostScript printer (WPrinterJob is the
default printer job)
http://yaroslavvb.com/work/curve-noise1.png

Top is what Java prints, under magnification, bottom is what it should
be. You can see that curves are uneven, and every character is
rendered in a slightly different way. What causes this, and how can
the quality be improved?

Yaroslav

Did you anti-alias when you rendered it? It is very odd looking and
doesn't quite look like an anti-alias problem.

 

[Yaroslav Bulatov]

Top is what Java prints, under magnification, bottom is what it should

Did you anti-alias when you rendered it? It is very odd looking and
doesn't quite look like an anti-alias problem.

The text is printed as curves, however those curves are noisy, so
every character is printed differently

 

[Roedy Green]

Here's an example of text printed from Java, it was rendered using
Graphics.drawString, sent to a PostScript printer (WPrinterJob is the
default printer job)
http://yaroslavvb.com/work/curve-noise1.png

One way to get good quality is to generate raw PostScript and send
that directly to the printer.

See http://mindprod.com/jgloss/postscript.html

It is tremendous fun. PS is a language every bit as interesting as
Java.

 

[Roedy Green]

The text is printed as curves, however those curves are noisy, so

every character is printed differently

What happens when you try a different font? Try a high quality Adobe
OpenFont.

 

[Yaroslav Bulatov]

What happens when you try a different font? Try a high quality Adobe
OpenFont.

Same situation. The problem is that Java converts font to curves, and
introduces errors during the conversion process.