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Support for vector hrule rendering #26337

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Support for vector hrule rendering #26337

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d5b253e
Update raster w, h, d calculation
devRD Jul 28, 2023
3052cfa
Update the Vector Parse without rounding off
devRD Jul 31, 2023
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15 changes: 8 additions & 7 deletions lib/matplotlib/_mathtext.py
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Original file line number Diff line number Diff line change
Expand Up @@ -98,8 +98,9 @@ def __init__(self, box):
self.rects = [] # (x1, y1, x2, y2)

def to_vector(self):
w, h, d = map(
np.ceil, [self.box.width, self.box.height, self.box.depth])
w = self.box.width
h = self.box.height
d = self.box.depth
gs = [(info.font, info.fontsize, info.num, ox, h - oy + info.offset)
for ox, oy, info in self.glyphs]
rs = [(x1, h - y2, x2 - x1, y2 - y1)
Expand All @@ -116,11 +117,12 @@ def to_raster(self, antialiased=None):
xmax = max([*[ox + info.metrics.xmax for ox, oy, info in self.glyphs],
*[x2 for x1, y1, x2, y2 in self.rects], 0]) + 1
ymax = max([*[oy - info.metrics.ymin for ox, oy, info in self.glyphs],
*[y2 for x1, y1, x2, y2 in self.rects], 0]) + 1
w = xmax - xmin
*[y2 for x1, y1, x2, y2 in self.rects], 0]) + 1.5

w = self.box.width
h = ymax - ymin - self.box.depth
d = ymax - ymin - self.box.height
image = FT2Image(np.ceil(w), np.ceil(h + max(d, 0)))
image = FT2Image(w, h + max(d, 0))

# Ideally, we could just use self.glyphs and self.rects here, shifting
# their coordinates by (-xmin, -ymin), but this yields slightly
Expand Down Expand Up @@ -2449,7 +2451,6 @@ def _genfrac(self, ldelim, rdelim, rule, style, num, den):
cnum.hpack(width, 'exactly')
cden.hpack(width, 'exactly')
vlist = Vlist([cnum, # numerator
Vbox(0, thickness * 2.0), # space
Hrule(state, rule), # rule
Vbox(0, thickness * 2.0), # space
cden # denominator
Expand All @@ -2462,7 +2463,7 @@ def _genfrac(self, ldelim, rdelim, rule, style, num, den):
'=', state.fontsize, state.dpi)
shift = (cden.height -
((metrics.ymax + metrics.ymin) / 2 -
thickness * 3.0))
thickness * 1.5))
vlist.shift_amount = shift

result = [Hlist([vlist, Hbox(thickness * 2.)])]
Expand Down