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Re: [Freetype] fractional point sizes

From: Anthony Feick
Subject: Re: [Freetype] fractional point sizes
Date: Tue, 17 Sep 2002 10:25:09 -0500

From: Werner LEMBERG <address@hidden>
Reply-To: address@hidden
To: address@hidden, address@hidden
Subject: Re: [Freetype] fractional point sizes
Date: Tue, 17 Sep 2002 11:29:35 +0200 (CEST)

> So it looks like the point size _is_ rounded, although a post from
> Werner from a while ago indicates otherwise:

The point size is indeed rounded to full *pixels*, but nothing
prevents you from using fractional *point* sizes.  You probably mean
fractional pixel sizes, don't you?

Well, I'm actually a little confused about font/point/pixel sizes. When I talk about font size it's in points: MetaNormalLF Roman 11.5 points. (Apparently fractional point sizes are pretty common in the print industry.)

I'm not entirely sure how the pixel size is used. At first I was thinking that it was points per EM, but I'm really confused after reading the last paragraph in the 'note' for FT_Set_Pixel_Sizes. 8x8 cell??? You're definitely not talking about ppem.

Also, I didn't think fractional pixel sizes were possible?

Here a mail excerpt between Vadim and David, sent a few days ago to
the list:

  > Also, with both fonts, I've altered FT_Set_Char_Size() so that it
  > doesn't round my supplied char_width and char_height, and I can
  > choose more strategic values.

  Not rounding the character width and height might be a good idea,
  I'll try to check this in the near future..

That would be very nice.


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