User Guide

FontLab 4
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H i n t i n g St r a t e g i e s
This section will give some examples of visual hinting strategies that are
applicable in different situations.
Middle Delta or Final Delta
The final delta command is the very last command of the instruction
sequence. This command moves only the point to which it is attached and
only on PPMs for which it is set. We recommend using this command in
situations where only one pixel needs to be “switched” on or off:
Final delta instruction
The middle delta instruction is much more flexible. You can use it to
slightly modify the interpretation of the hinting program because it is
automatically inserted between commands and is interpreted after the
command that sets the position of a point and before any command that
uses that position as a basis (like link and interpolation instructions).