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font-patcher: Fix vertical overlap

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[why]
The vertical overlap is still not 'pixel perfect', it is off by a small
amount that differs by font.

[how]
The reason is the wrong formula. We take the relative widths of the
glyph to calculate the factor needed to add an overlap in height.
Of course we need to take the relative heights *duh*.

Sometimes I think how dumb can a single person be? :-}
I would say this is copy-and-paste laziness.

Signed-off-by: Fini Jastrow <ulf.fini.jastrow@desy.de>
This commit is contained in:
Fini Jastrow 2023-01-12 16:55:38 +01:00
parent ed929aa7f4
commit 0db79a0b97
1 changed files with 1 additions and 1 deletions
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font-patcher
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@ -1130,7 +1130,7 @@ class font_patcher:
if overlap:
scale_ratio_x *= 1.0 + (self.font_dim['width'] / (sym_dim['width'] * scale_ratio_x)) * overlap
y_overlap = min(0.01, overlap) # never aggressive vertical overlap
scale_ratio_y *= 1.0 + (self.font_dim['width'] / (sym_dim['width'] * scale_ratio_y)) * y_overlap
scale_ratio_y *= 1.0 + (self.font_dim['height'] / (sym_dim['height'] * scale_ratio_y)) * y_overlap
# Size in x to size in y ratio limit (to prevent over-wide glyphs)
xy_ratio_max = sym_attr['params'].get('xy-ratio')