[instancer.solver] Add comments

2022-08-08 11:32:07 -06:00 · 2022-08-08 11:32:07 -06:00 · 617f19ff8d
commit 617f19ff8d
parent 7f79fad3d0
1 changed files with 3 additions and 0 deletions
--- a/Lib/fontTools/varLib/instancer/solver.py
+++ b/Lib/fontTools/varLib/instancer/solver.py
@ -48,11 +48,14 @@ def _solve(tent, axisLimit):

        out.append((scalar - gain, loc))

+        # case 3a1, similar to case 1neg
        if upper >= axisMax:
            loc = (crossing, axisMax, axisMax)
            scalar = supportScalar({'tag': axisMax}, {'tag': tent})

            out.append((scalar - gain, loc))
+
+        # case 3a2, similar to case 2neg
        else:
            loc1 = (crossing, upper, axisMax)
            scalar1 = 0