[reportlab-users] blurry (dithered) lines + font height, descent etc.
Michael Steuer
reportlab-users@reportlab.com
Wed, 23 Oct 2002 23:09:52 +1000
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Hi everybody!
I'm currently writing a python application that generates output in PDF, PNG,
JPG etc. and am trying to use reportlab for this task. I was using piddle
before, but due to its development state decided to change over to reportlab.
Now, changing my code over from piddle, I have some problems:
If I ouput the same Drawing (reportlab.graphics) to PDF and PNG (see the
attached files), I get a perfect output in PDF, but in PNG (and all the other
renderPM output types) I get blurry (dithered) lines.
Is there a way to turn this dithering off?
Btw: I am using "renderPM.drawToFile" to output the PNG.
Furthermore, in my application I need to position text depending on its size, so
I need a way to get the following information depending on the font:
font height, descent, ascent and string width
For the width, I found "reportlab.pdfbase.pdfmetrics.stringWidth", but there
seems to be no function for obtaining the font height, descent and ascent. Am I
overlooking something???
Thanks for your help in advance.
Cheers,
Mike.
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