Re: [Fontforge-devel] Problem with the Expand Stroke command

[George W. <gw...@si...>]

On Sat, 2004-05-15 at 04:39, Bzyl Wlodzimierz wrote:
> Also, Generate PFA Font produces a font different from the original
> plus.pfa: the crossing lines in `+' are closed with the closepath command.
FontForge does not support PaintType=1 fonts (stroked fonts). Your font
is a PaintType=0 font (filled). In PaintType=0 fonts all paths are
automatically closed. Thus the difference you mention doesn't exist.

If you load a font into fontforge and then save it out again, it will
rarely be bit for bit the same. It should be semantically equivalent
however.

> After reading plus.pfb into fontforge, double clicking on `+',
> and choosing Element -> Expand Stroke, clicking Line Cap & Join -- round,
> fontforge produces an outline with rounded corners on one end and butt
> ones on the other end instead of rounded corners on both ends.
Yes, the expand stroke command has difficulties with contours which
double back onto themselves. I don't see any way to fix this.

The line you drew in FontForge works because it is a single line and
does not double back (the one read in has been closed because all filled
contours get closed automatically).

If want to deal with stroked paths, I suggest you generate type3 fonts,
where fontforge can handle the paths properly.