Thanks Werner.Hats-off for remembering!! Where can find about definition of hinted fonts?What it means?
How does it vary in freetype for HINT and NO_HINT? Also,When i was looking for hinted in FT_Load_Glyph i found , For *no_hinting *we can use FT_LOAD_NO_SCALE flag I tried using something like below, FT_Load_Glyph( face, glyph_index, FT_LOAD_NO_HINTING|FT_LOAD_RENDER|FT_LOAD_MONOCHROME); But still i am getting xmin for A as -1. If i would like to check no_hinting option,how can i do it? Thanks, Sam On Tue, Feb 16, 2010 at 5:39 PM, Werner LEMBERG <w...@gnu.org> wrote: > > Samaram, > > > I've now found some time to answer this your question: > > > I am using Arial.ttf file [at 12px/72dpi], [...] I am getting x min > > for few characters as -1 [after a call to compute the CBox]. Is it > > correct? > > Yes. Have a look at the attached image, from a debugging session with > FontForge. It shows the outline of glyph `A' from arial.ttf at 12px > with 72dpi, after hinting has been applied. The hinting engine moves > point 0 to the left so that it eventually gets a negative x value. > After rounding, this becomes -1. Similarly, point 3 gets moved to the > right, causing the xmax value to be 8. In other words, the CBox of > the hinted glyph `A' is two pixels wider than necessary. > > Always bear in mind the following warning from the description of the > `bbox' field in FT_FaceRec: > > Note that the bounding box might be off by (at least) one pixel for > hinted fonts. See @FT_Size_Metrics for further discussion. > > In the description of FT_Size_Metrics: > > [...] Indeed, the only way to get the exact metrics is to render > _all_ glyphs. As this would be a definite performance hit, it is up > to client applications to perform such computations. > > > Werner > > > _______________________________________________ > Freetype mailing list > Freetype@nongnu.org > http://lists.nongnu.org/mailman/listinfo/freetype > >
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