TeX-ify the alignment even more (and break images again)

tfpf · tfpf · commit 89d0d3beae7b · 2022-01-10T18:16:47.000+05:30
diff --git a/lib/matplotlib/_mathtext.py b/lib/matplotlib/_mathtext.py
@@ -2762,18 +2762,21 @@ def _genfrac(self, ldelim, rdelim, rule, style, num, den):
         cap_height = state.font_output.get_metrics(
             state.font, mpl.rcParams['mathtext.default'],
             'H', state.fontsize, state.dpi).height
-        thickness = state.font_output.get_underline_thickness(
-            state.font, state.fontsize, state.dpi)
 
         rule = float(rule)
+        if rule:
+            thickness = rule
+        else:
+            thickness = state.font_output.get_underline_thickness(
+                state.font, state.fontsize, state.dpi)
 
         if style is not self._MathStyle.DISPLAYSTYLE:
             num.shrink()
             den.shrink()
-            min_clearance = np.ceil(0.5 * thickness)
-            cap_height *= 0.7
+            cap_height *= SHRINK_FACTOR
+            min_clearance = thickness if rule else 1.5 * thickness
         else:
-            min_clearance = 1.5 * thickness
+            min_clearance = 3 * thickness if rule else 3.5 * thickness
         cnum = HCentered([num])
         cden = HCentered([den])
         width = max(num.width, den.width)
