Dear type cracks,
here’s a somewhat beginner’s question to TrueType hinting:
Do you see a chance to have components (of, say, small figures) that are positioned differently from the originals on the y axis?
The original set of small figures in this one font are the numerators. Then, the denominators are components only, so far. But their hinting is of course attached to zones in certain commands that are far off for the components.
And while I don't see the crude distortions I remember from earlier days (like counters being pulled way over the outer outline), they don't look well in the font. They look okay in dimensions and proportions and stroke width, and even completely as supposed in certain ppms, but they also look unhinted in many other ppms.
Is there a way, or should they be decomposed under all circumstances?
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This is a lot easier to do in VTT however, than it would be in FontLab.
I applied "Align points" (FL terminology) to the top and bottom points in the component (denominator). I thought that must be what you mean by "Yanchors". Now they align with the zones, but the innards still appear unhinted at certain ppms. But the top and bottoms points are the only ones being attached to zones. The rest of the hinting consists of three stems. And they should be well shiftable.
I don’t get this.
BTW, do you know how FontLab applies additional hinting to components? Do additional hints overwrite identical commands for this particular point or does it scrape all commands taken over from the base glyph and applies only the additional commands?