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Optimize shape for double-struck 2 (#2728)

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be5invis 2025-03-30 13:28:44 -07:00
parent 5c8392346d
commit e5032b977c
2 changed files with 22 additions and 18 deletions
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37
packages/font-glyphs/src/number/2.ptl
View file

@ -12,31 +12,32 @@ glyph-block Digits-Two : begin
define [TwoStraightNeckArcT sink offset sw top] : begin
define archDepth : [AdviceGlottalStopArchDepth top 1] * 0.95
define xLeft : SB + offset
define xRight : RightSB - offset - OX / 2
define xLB : SB + offset
define xR : RightSB - OX / 2
define yPhRight : top - archDepth * 1.5 - sw / 2 * (top / CAP - TanSlope)
define pStraightBarStart 0.75
return : sink
widths.rhs sw
g4 xLeft (top - Hook)
hookstart (top - offset) (sw -- sw)
g4.down.mid xRight (top - archDepth)
flat [mix xLeft xRight pStraightBarStart] [mix sw yPhRight pStraightBarStart]
curl xLeft sw [widths.lhs sw]
g4 SB (top - Hook)
hookstart top (sw -- sw)
g4.down.mid xR (top - archDepth)
flat [mix xLB xR pStraightBarStart] [mix sw yPhRight pStraightBarStart]
curl xLB sw [widths.lhs sw]
define [TwoArcShapeT sink offset sw top] : begin
define [TwoArcShapeT sink offsetU offsetD sw top] : begin
define archDepth : [AdviceGlottalStopArchDepth top 1] * 0.95
return : sink
widths.rhs sw
g4 (SB + offset) (top - Hook)
hookstart (top - offset) (sw -- sw)
g4.down.mid (RightSB - offset - OX / 2) (top - archDepth)
alsoThru.g2 0.5 ([StrokeWidthBlend 0.425 0.4 sw] * [linreg 500 1 700 0.95 Width]) [widths.center sw]
flat (SB - offset) 1 [widths.heading sw 0 Downward]
curl (SB - offset) 0 [heading Downward]
g4 (SB - offsetU) (top - Hook)
hookstart top (sw -- sw)
g4.down.mid (RightSB - offsetU - OX / 2) (top - archDepth)
alsoThru.g2.withOffset 0.5 ([StrokeWidthBlend 0.425 0.4 sw] * [linreg 500 1 700 0.95 Width]) 0 (0.25 * (offsetU - offsetD)) [widths.center sw]
flat (SB + offsetD) 1 [widths.heading sw 0 Downward]
[if (sink == spiro-outline) corner curl] (SB + offsetD) 0 [heading Downward]
if (sink == spiro-outline) { [corner (SB - offsetU) 0] } {}
define [TwoShape top slab] : glyph-proc
include : TwoArcShapeT dispiro 0 Stroke top
include : TwoArcShapeT dispiro 0 0 Stroke top
include : HBar.b (SB + HalfStroke) RightSB 0
if slab : begin
include : VSerif.ur RightSB 0 VJut
@ -90,8 +91,8 @@ glyph-block Digits-Two : begin
glyph-block-import Letter-Blackboard : BBS BBD
create-glyph 'mathbb/two' 0x1D7DA : glyph-proc
include : MarkSet.capital
include : TwoArcShapeT dispiro 0 BBS CAP
include : TwoArcShapeT dispiro 0 BBD BBS CAP
include : intersection
TwoArcShapeT spiro-outline 1 BBS CAP
VBar.r (RightSB - OX / 2 - BBD) 0 CAP BBS
TwoArcShapeT dispiro BBD 0 BBS CAP
TwoArcShapeT spiro-outline 0 BBD BBS CAP
include : HBar.b (SB + [HSwToV : 0.5 * BBS]) RightSB 0 BBS

3
packages/font-kits/src/spiro-kit.mjs
View file

@ -314,6 +314,9 @@ export function SetupBuilders(bindings) {
alsoThru.g4 = function (rx, ry, raf) {
return new SimpleMixInterpolator(g4, rx, ry, 0, 0, raf);
};
alsoThru.g2.withOffset = function (rx, ry, deltaX, deltaY, raf) {
return new SimpleMixInterpolator(g2, rx, ry, deltaX, deltaY, raf);
};
/// Multi-mix interpolator
class MultiMixInterpolator extends InterpolatorBase {