Corner extrema points
I’m looking at the control points of Trajan Pro, and I noticed something interesting. On the outer line, the apex has the control point. That makes sense to me, since that point is in extrema. But can someone explain to me why the apex of the inner line has the points on either side rather than in extrema?
1.Feb.2008 10.56pm
Interesting. I sure don’t know. And Carol isn’t on Typophile that I know about...
1.Feb.2008 11.04pm
Probably just forgot it.
Also, there are times when adding a node changes the shape too much. For really small curves, sometimes the closest location on the UPM grid isn’t close enough to where you would want it.
2.Feb.2008 12.06am
I guess I should mention that this is the letter A.
@Cerulean
I figured that it might have something to do with size. That curve is super tiny at regular type size, so maybe that might have something to do with it?
2.Feb.2008 12.23am
Perhaps this is an example where breaking the “Rules” worked. Further, maybe it’s a mistake. Try doing tests & see what you get.
2.Feb.2008 1.00am
The top extrema point is necessary for hinting against the alignment zone.
The lower extrema is omitted because it is not necessary for hinting, and because in that small acute space, on a 1000 unit em, it would make it difficult to draw a smooth curve.