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Optimize shapes of Barred B and R with Stroke (#1956)

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John McWilliams 2023-08-23 16:17:45 -04:00 • committed by GitHub
parent 9fbd76e59e
commit cb3f71ea8f
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4 changed files with 38 additions and 6 deletions
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2
changes/26.2.2.md
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@ -3,6 +3,8 @@
* Make Guillemets (`«`, `»`) curly for Default Slab.
* Remove duplicate lower-right serif variants of `H` with descender (#1953).
* Fix toothless variants of LATIN SMALL LETTER B WITH HOOK (`U+0253`) (#1952).
* Always use closed variants for LATIN CAPITAL LETTER R WITH STROKE (`U+024C`).
* Optimize shape of LATIN {SMALL CAPITAL|MODIFIER LETTER CAPITAL} BARRED B (`U+1D03`,`U+1D2F`).
* Fix variant selection for `cv34` and `cv37` under `ss01`, `ss03`, `ss09`, `ss10`, and `ss13`.
* Fix variant selection for `cv36` under `ss03`, `ss08`, `ss09`, `ss10`, `ss12`, and `ss14`.
* Fix variant selection for `cv59` and `vxAB` under `ss01`, `ss05`, `ss08`, and `ss13`.

16
font-src/glyphs/letter/latin/upper-b.ptl
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@ -103,6 +103,10 @@ glyph-block Letter-Latin-Upper-B : begin
return : LetterBarOverlay.l.in SB stroke (top * bp - 0.5 * stroke)
space -- { 0 (RightSB - [HSwToV Stroke]) }
define [BOverlayBar top bp] : begin
local stroke : AdviceStroke2 2 3 top
return : HBar.m [mix 0 SB 0.3] [mix Width RightSB 0.3] (top * bp)
define [BahtBar sw] : VBar.m [mix SB RightSB 0.48] (CAP - Descender / 2) (Descender / 2) sw
define [BitcoinBar sw] : begin
local xMid : mix SB RightSB 0.48
@ -133,6 +137,10 @@ glyph-block Letter-Latin-Upper-B : begin
include [refer-glyph "B.\(suffix)"] AS_BASE ALSO_METRICS
include : BOverlayStroke CAP bp
create-glyph "BBar.\(suffix)" : glyph-proc
include [refer-glyph "B.\(suffix)"] AS_BASE ALSO_METRICS
include : BOverlayBar CAP bp
create-glyph "currency/baht.\(suffix)" : union
body CAP currencySw ts bs
intersection [BahtBar : AdviceStroke 5] [mask CAP : AdviceStroke2 2 3 CAP]
@ -146,6 +154,10 @@ glyph-block Letter-Latin-Upper-B : begin
include : MarkSet.e
include : body XH [AdviceStroke2 2 3 XH] ts bs
create-glyph "smcpBBar.\(suffix)" : glyph-proc
include [refer-glyph "smcpB.\(suffix)"] AS_BASE ALSO_METRICS
include : BOverlayBar XH bp
create-glyph "latn/Beta.\(suffix)" : glyph-proc
include : MarkSet.capDesc
include : body CAP [AdviceStroke2 2 3 CAP] ts false
@ -167,8 +179,8 @@ glyph-block Letter-Latin-Upper-B : begin
select-variant 'smcpB' 0x299
alias 'cyrl/ve.upright' null 'smcpB'
derive-composites 'BBar' null 'B' 'hStrike'
derive-composites 'smcpBBar' 0x1D03 'smcpB' 'hStrike'
select-variant 'BBar'
select-variant 'smcpBBar' 0x1D03 (follow -- 'BBar')
create-glyph 'mathbb/B' 0x1D539 : glyph-proc
include : MarkSet.capital

11
font-src/glyphs/letter/latin/upper-r.ptl
View file

@ -184,6 +184,10 @@ glyph-block Letter-Latin-Upper-R : begin
include : StrikeAnchor
include : RShape legShape CAP (slab -- slabs) (bp -- bpCap) (open -- fOpen)
if (!fOpen) : create-glyph "RBar.\(suffix)" : glyph-proc
include [refer-glyph "R.\(suffix)"] AS_BASE ALSO_METRICS
include : HBar.m [mix 0 SB 0.3] (SB - O) ((CAP - Stroke) * [RBarPos CAP SLAB] + Stroke * 0.25)
create-glyph "smcpR.\(suffix)" : glyph-proc
include : MarkSet.e
include : StrikeAnchor
@ -237,6 +241,9 @@ glyph-block Letter-Latin-Upper-R : begin
select-variant 'R' 'R'
link-reduced-variant 'R/sansSerif' 'R' MathSansSerif
select-variant 'RBar' 0x24C
select-variant 'smcpR' 0x280 (follow -- 'R')
turned 'turnSmapR' 0x1D1A 'smcpR' Middle (XH / 2)
@ -252,10 +259,6 @@ glyph-block Letter-Latin-Upper-R : begin
select-variant 'currency/indianRupeeSign' 0x20B9 (follow -- 'RRotunda')
derive-glyphs 'RBar' 0x24C 'R' : lambda [src gr] : glyph-proc
include [refer-glyph src] AS_BASE ALSO_METRICS
include : HBar.m [mix 0 SB 0.3] (SB - O) ((CAP - Stroke) * [RBarPos CAP SLAB] + Stroke * 0.25)
derive-glyphs 'RRTail' 0x2C64 'R' : lambda [src gr] : glyph-proc
include [refer-glyph src] AS_BASE ALSO_METRICS
eject-contour 'serifLB'

15
params/variants.toml
View file

@ -72,6 +72,7 @@ descriptionAffix = "mostly symmetric shape"
selectorAffix.B = "standard"
selectorAffix."B/sansSerif" = "standard"
selectorAffix.smcpB = "standard"
selectorAffix.BBar = "standard"
[prime.capital-b.variants-buildup.stages.symmetry.more-asymmetric]
rank = 2
@ -79,6 +80,7 @@ descriptionAffix = "more asymmetric shape"
selectorAffix.B = "moreAsymmetric"
selectorAffix."B/sansSerif" = "moreAsymmetric"
selectorAffix.smcpB = "moreAsymmetric"
selectorAffix.BBar = "moreAsymmetric"
[prime.capital-b.variants-buildup.stages.openness."*"]
next = "serifs"
@ -89,6 +91,7 @@ keyAffix = ""
selectorAffix.B = ""
selectorAffix."B/sansSerif" = ""
selectorAffix.smcpB = ""
selectorAffix.BBar = ""
[prime.capital-b.variants-buildup.stages.openness.interrupted]
rank = 2
@ -96,6 +99,7 @@ descriptionAffix = "interrupted middle bar"
selectorAffix.B = "interrupted"
selectorAffix."B/sansSerif" = "interrupted"
selectorAffix.smcpB = "interrupted"
selectorAffix.BBar = ""
[prime.capital-b.variants-buildup.stages.serifs.serifless]
rank = 1
@ -104,6 +108,7 @@ descriptionJoiner = "without"
selectorAffix.B = "serifless"
selectorAffix."B/sansSerif" = "serifless"
selectorAffix.smcpB = "serifless"
selectorAffix.BBar = "serifless"
[prime.capital-b.variants-buildup.stages.serifs.unilateral-serifed]
rank = 2
@ -111,6 +116,7 @@ descriptionAffix = "serifs at top"
selectorAffix.B = "unilateralSerifed"
selectorAffix."B/sansSerif" = "serifless"
selectorAffix.smcpB = "unilateralSerifed"
selectorAffix.BBar = "unilateralSerifed"
[prime.capital-b.variants-buildup.stages.serifs.bilateral-serifed]
rank = 3
@ -118,6 +124,7 @@ descriptionAffix = "serifs at both top and bottom"
selectorAffix.B = "bilateralSerifed"
selectorAffix."B/sansSerif" = "serifless"
selectorAffix.smcpB = "bilateralSerifed"
selectorAffix.BBar = "bilateralSerifed"
@ -867,6 +874,7 @@ rank = 1
keyAffix = ""
selectorAffix.R = ""
selectorAffix."R/sansSerif" = ""
selectorAffix.RBar = ""
selectorAffix.RRotunda = ""
[prime.capital-r.variants-buildup.stages.openness.open]
@ -874,6 +882,7 @@ rank = 2
descriptionAffix = "open contour"
selectorAffix.R = "open"
selectorAffix."R/sansSerif" = "open"
selectorAffix.RBar = ""
selectorAffix.RRotunda = ""
[prime.capital-r.variants-buildup.stages.leg."*"]
@ -885,6 +894,7 @@ rank = 1
descriptionAffix = "straight leg"
selectorAffix.R = "straight"
selectorAffix."R/sansSerif" = "straight"
selectorAffix.RBar = "straight"
selectorAffix.RRotunda = "straight"
[prime.capital-r.variants-buildup.stages.leg.curly]
@ -892,6 +902,7 @@ rank = 2
descriptionAffix = "curly leg"
selectorAffix.R = "curly"
selectorAffix."R/sansSerif" = "curly"
selectorAffix.RBar = "curly"
selectorAffix.RRotunda = "curly"
[prime.capital-r.variants-buildup.stages.leg.standing]
@ -899,6 +910,7 @@ rank = 3
descriptionAffix = "standing leg (like Helvetica)"
selectorAffix.R = "standing"
selectorAffix."R/sansSerif" = "standing"
selectorAffix.RBar = "standing"
selectorAffix.RRotunda = "standing"
[prime.capital-r.variants-buildup.stages.serifs.serifless]
@ -907,6 +919,7 @@ descriptionAffix = "serifs"
descriptionJoiner = "without"
selectorAffix.R = "serifless"
selectorAffix."R/sansSerif" = "serifless"
selectorAffix.RBar = "serifless"
selectorAffix.RRotunda = "serifless"
[prime.capital-r.variants-buildup.stages.serifs.motion-serifed]
@ -914,6 +927,7 @@ rank = 2
descriptionAffix = "motion serifs"
selectorAffix.R = "motionSerifed"
selectorAffix."R/sansSerif" = "serifless"
selectorAffix.RBar = "motionSerifed"
selectorAffix.RRotunda = "serifless"
[prime.capital-r.variants-buildup.stages.serifs.serifed]
@ -921,6 +935,7 @@ rank = 3
descriptionAffix = "serifs"
selectorAffix.R = "serifed"
selectorAffix."R/sansSerif" = "serifless"
selectorAffix.RBar = "serifed"
selectorAffix.RRotunda = "serifless"