Add crossing Q (#640).

changes/3.4.0.md

@@ -1,4 +1,5 @@
  * Add tailed two-story `a` (#637).
  * Add turned five-pointing asterisk `*` (#638).
  * Add horizontal crossbar variant of `Z` and `z` (#640, #595).
- * Add serifless `J` (#640).
+ * Add serifless `J` (#640).
+ * Add crossing `Q` (#640).

font-src/glyphs/letter-latin.ptl

@@ -3629,16 +3629,16 @@ glyph-block Letter-Latin-Upper-Q : begin
 	glyph-block-import CommonShapes
 	glyph-block-import Overmarks
 
-	sketch # Q.straight
+	create-glyph 'Q.straight' : glyph-construction
 		set-width Width
 		include [refer-glyph 'O'] AS_BASE
 		local shift : StrokeWidthBlend 0 0.25
 		include : dispiro
 			widths.rhs
 			flat (Middle + Width * 0.075 - Stroke * HVContrast * shift) (-CAP * 0.2) [heading Upward]
 			curl (Middle - Stroke * HVContrast * shift) 0
-		save 'Q.straight'
-	sketch # Q.taily
+
+	create-glyph 'Q.taily' : glyph-construction
 		set-width Width
 		include [refer-glyph 'O'] AS_BASE
 		local shift : StrokeWidthBlend 0.5 0.6
@@ -3651,7 +3651,16 @@ glyph-block Letter-Latin-Upper-Q : begin
 			arcvh
 			flat [Math.min (terminalx - 1) (startx + Hook - Stroke)] (Stroke - Hook)
 			curl terminalx (Stroke - Hook)
-		save 'Q.taily'
+
+	create-glyph 'Q.crossing' : glyph-construction
+		set-width Width
+		include [refer-glyph 'O'] AS_BASE
+		define k 1.5
+		define cor : diagCor (k * (RightSB - Middle)) (RightSB - Middle - OX)
+		include : dispiro
+			widths.center (cor * [adviceBlackness 4])
+			flat RightSB 0 [heading Upward]
+			curl (Middle + OX) (k * (RightSB - Middle)) [heading Upward]
 
 	select-variant 'Q' 'Q'
 	alias 'cyrQa' 0x51A 'Q'

params/variants.toml

@@ -75,6 +75,12 @@ sampler = 'Q'
 description = '`Q` with a straight tail like in the old versions'
 variant.Q = 'straight'
 
+[simple.v-capital-q-crossing]
+tag = 'VXCA'
+sampler = 'Q'
+description = '`Q` with a tail crossing the ring'
+variant.Q = 'crossing'
+
 [simple.v-capital-r-straight]
 tag = "cv82"
 sampler = 'R'