The recommended calling sequence of mf2pt1 is
- mf2pt1 --rounding=0.001 <other options> <font>
+ mf2pt1 --rounding=0.0001 <other options> <font>
You need mf2pt1 version 2.1 or newer.
. Use rounded corners.
+Hints for stem attachment:
+
+. Stem attachment of glyphs is controlled by two special variables called
+ `charwx' and `charwy'. Stems can be regarded as (very oblonged)
+ rectangles with slightly rounded corners. For stems pointing upwards the
+ lower right corner of this rectangle is attached to the glyph at position
+ (charwx, charwy). For stems pointing downwards it works analogously but
+ with the upper left corner, where the position of the attachment point is
+ additionally reflected horizontally about the center of the glyph -- this
+ ensures that in most cases charwx and charwy can be set to the same values
+ for up and down stems even though these are attached at the right/left end
+ of the note, respectively. To make this more precise, the upper left
+ corner of a down stem is attached at position (charwd/2 - charwx, charwy),
+ where `charwd' is an internal metafont variable representing the glyph
+ width as specified by the `set_char_box' command.
+
+. In case different stem attachments for upward and downward pointing stems
+ are needed, two separate glyphs must be defined in the Metafont file; of
+ course, this also applies if two entirely different shapes are needed.
+ These have the same name but are prefixed by `u' and `d', respectively
+ (for `up' and `down', obviously). In each of these glyphs the variables
+ charwx and charwy must be set accordingly. If, on the other hand, the
+ attachment point is the `same' for both directions (with the
+ abovementioned horizontal reflection taken into account), then the prefix
+ `s' (for `symmetric') should be used. See the existing files for
+ examples. The numbers in the glyph names refer to the duration of the
+ note; e.g., `s0cross' in feta-noteheads.mf defines the notehead for a
+ whole cross-shaped note (similarly, `s1cross' and `s2cross' are for half
+ and quarter notes, respectively).
+
+
Finally, some rules to assure that rasterization at low resolutions gives
good results. Today, this is a minor issue, but in some cases it might show
design flaws.