round kerning to integer values

misc/glyphs-scripts/round-kerning.py

@@ -0,0 +1,33 @@
+#MenuTitle: Round Kerning of current master
+# encoding: utf-8
+import GlyphsApp
+
+__doc__="""
+Rounds kerning of the currently selected master to integer values
+and drops any kerning smaller than 4.
+"""
+
+font = Glyphs.font
+master_id = font.selectedFontMaster.id
+MIN_VALUE = 4
+to_be_removed = []  # [(L,R) ...]
+
+try:
+  Glyphs.font.disableUpdateInterface()
+  for left, r_dict in font.kerning[master_id].items():
+    if not left.startswith('@'):
+      left = font.glyphForId_(left).name
+    for right, value in r_dict.items():
+      if not right.startswith('@'):
+        right = font.glyphForId_(right).name
+      value2 = float(int(value)) # floor()
+      if abs(value2) < MIN_VALUE:
+        to_be_removed.append((left, right))
+      elif value2 != value:
+        font.setKerningForPair(master_id, left, right, value2)
+
+  for left, right in to_be_removed:
+    print("removing pair (%s, %s)" % (left, right))
+    font.removeKerningForPair(master_id, left, right)
+finally:
+  Glyphs.font.enableUpdateInterface()